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• Slow wired internet connection on Realtek RTL8168-8111 (Rev 6)

  - by Mark

  I keep on seeing issues people are having with their wireless. I am having an issue with being wired into my router. I installed Ubuntu 11.10 the other day, on my custom PC. The motherboard I have installed on this PC is an ASUS P8H61-M. The issue I am having is with my speed. I have a dual boot, windows 7 and the new Ubuntu. On my Windows install I am getting test speeds from Speakeasy at 17Mbps and actual downloads around 2-3MB/s. With Ubuntu, I am getting test speeds from Speakeasy at 1.14Mbps and actual downloads around 60KB/s. I have disabled IPv6 and am no using GoogleDNS for my DNS, but it hasn't resolved the issue. I have scanned my router (WRT54GS Linksys) to disable IPv6 connections, and I am not seeing any option for that. I cannot figure out why I am getting such sluggish internet connection. Any help to resolve would be great! I performed an iconfig -a with these results: mark@Mark-ASUS:~$ ifconfig -a eth0 Link encap:Ethernet HWaddr f4:6d:04:d1:2c:4e inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::f66d:4ff:fed1:2c4e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:21888 errors:0 dropped:21888 overruns:0 frame:21888 TX packets:21068 errors:0 dropped:90 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:26348337 (26.3 MB) TX bytes:2217140 (2.2 MB) Interrupt:46 Base address:0xc000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:7 errors:0 dropped:0 overruns:0 frame:0 TX packets:7 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:952 (952.0 B) TX bytes:952 (952.0 B) My specs are: mark@Mark-ASUS:~$ sudo lspci -nn 04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06) 06:00.0 PCI bridge [0604]: ASMedia Technology Inc. Device [1b21:1080] (rev 01) udev information: KERNEL[11.351405] add /devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 (net) UDEV_LOG=3 ACTION=add DEVPATH=/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 SUBSYSTEM=net INTERFACE=eth0 IFINDEX=2 SEQNUM=1542 UDEV [11.363905] add /devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 (net) UDEV_LOG=3 ACTION=add DEVPATH=/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 SUBSYSTEM=net INTERFACE=eth0 IFINDEX=2 SEQNUM=1542 ID_VENDOR_FROM_DATABASE=Realtek Semiconductor Co., Ltd. ID_MODEL_FROM_DATABASE=RTL8111/8168B PCI Express Gigabit Ethernet controller ID_BUS=pci ID_VENDOR_ID=0x10ec ID_MODEL_ID=0x8168 ID_MM_CANDIDATE=1 dmesg information: [ 2.855982] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded [ 2.856366] r8169 0000:04:00.0: eth0: RTL8168b/8111b at 0xffffc9000064c000, f4:6d:04:d1:2c:4e, XID 0c900800 IRQ 46 [ 12.540956] r8169 0000:04:00.0: eth0: link down [ 12.540961] r8169 0000:04:00.0: eth0: link down [ 12.541173] ADDRCONF(NETDEV_UP): eth0: link is not ready I took out a lot of information that did not pertain to eth0, because the previous edits wouldn't save. If I need any more information, let me know. I would love to get this resolved. The other issue I am noticing is sometimes my connection disconnects all together, for about a minute, then it reconnects.

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• Very slow KVM in Ubuntu 12.04

  - by Guy Fawkes

  I use Ubuntu 12.04 64-bit and KVM, my CPU is Core i5 3.3 GHz and I have 8 GB of DDR3 RAM. I run Windows 7 in KVM and it's extremely slow. My co-worker use Debian on the same PC configuration and can run Windows 7 extremely fast! Where can be my problem? sudo cat /etc/libvirt/qemu/windows.xml <!-- WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE OVERWRITTEN AND LOST. Changes to this xml configuration should be made using: virsh edit windows or other application using the libvirt API. --> <domain type='kvm'> <name>windows</name> <uuid>5c685175-baea-0ca6-591f-8269d923ffb8</uuid> <memory>2097152</memory> <currentMemory>2097152</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='pc-1.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='localtime'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/windows.img'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <interface type='network'> <mac address='52:54:00:94:63:91'/> <source network='default'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='tablet' bus='usb'/> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes'/> <sound model='ich6'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </sound> <video> <model type='vga' vram='262144' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </memballoon> </devices> </domain>

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• Controlling server configurations with IPS

  - by barts

  I recently received a customer question regarding how they best could control which packages and which versions were used on their production Solaris 11 servers.  They had considered pointing each server at its own software repository - a common initial approach.  A simpler method leverages one of dependency mechanisms we introduced with Solaris 11, but is not immediately obvious to most people. Typically, most internal IT departments qualify particular versions for production use.  What this customer wanted to do was insure that their operations staff only installed internally qualified versions of Solaris on their servers.  The easiest way of doing this is to leverage the 'incorporate' type of dependency in a small package defined for each server type.  From the reference " Packaging and Delivering Software With the Image Packaging System in Oracle® Solaris 11.1":  The incorporate dependency specifies that if the given package is installed, it must be at the given version, to the given version accuracy. For example, if the dependent FMRI has a version of 1.4.3, then no version less than 1.4.3 or greater than or equal to 1.4.4 satisfies the dependency. Version 1.4.3.7 does satisfy this example dependency. The common way to use incorporate dependencies is to put many of them in the same package to define a surface in the package version space that is compatible. Packages that contain such sets of incorporate dependencies are often called incorporations. Incorporations are typically used to define sets of software packages that are built together and are not separately versioned. The incorporate dependency is heavily used in Oracle Solaris to ensurethat compatible versions of software are installed together. An example incorporate dependency is: depend type=incorporate fmri=pkg:/driver/network/ethernet/[email protected],5.11-0.175.0.0.0.2.1 So, to make sure only qualified versions are installed on a server, create a package that will be installed on the machines to be controlled.  This package will contain an incorporate dependency on the "entire" package, which controls the various components used to be build Solaris.  Every time a new version of Solaris has been qualified for production use, create a new version of this package specifying the new version of "entire" that was qualified.  Once this new control package is available in the repositories configured on the production server, the pkg update command will update that system to the specified version.  Unless a new version of the control package is made available, pkg update will report that no updates are available since no version of the control package can be installed that satisfies the incorporate constraint. Note that if desired, the same package can be used to specify which packages must be present on the system by adding either "require" or "group" dependencies; the latter permits removal of some of the packages, the former does not.  More details on this can be found in either the section 5 pkg man page or the previously mentioned reference document. This technique of using package dependencies to constrain system configuration leverages the SAT solver which is at the heart of IPS, and is basic to how we package Solaris itself.  

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• PowerShell: Read Excel to Create Inserts

  - by BuckWoody

  I’m writing a series of articles on how to migrate “departmental” data into SQL Server. I also hold workshops on the entire process – from discovering that the data exists to the modeling process and then how to design the Extract, Transform and Load (ETL) process. Finally I write about (and teach) a few methods on actually moving the data. One of those options is to use PowerShell. There are a lot of ways even with that choice, but the one I show is to read two columns from the spreadsheet and output statements that would insert the data using a stored procedure. Of course, you could re-write this as INSERT statements, out to a text file for bcp, or even use a database connection in the script to move the data directly from Excel into SQL Server. This snippet won’t run on your system, of course – it assumes a Microsoft Office Excel 2007 spreadsheet located at c:\temp called VendorList.xlsx. It looks for a tab in that spreadsheet called Vendors. The statement that does the writing just uses one column: Vendor Code. Here’s the breakdown of what I’m doing: In the first block, I connect to Microsoft Office Excel. That connection string is specific to Excel 2007, so if you need a different version you’ll need to look that up. In the second block I set up a selection from the entire spreadsheet based on that tab. Note that if you’re only after certain data you shouldn’t get the whole spreadsheet – that’s just good practice. In the next block I create the text I want, inserting the Vendor Code field as I go. Finally I close the connection. Enjoy! $ExcelConnection= New-Object -com "ADODB.Connection" $ExcelFile="c:\temp\VendorList.xlsx" $ExcelConnection.Open("Provider=Microsoft.ACE.OLEDB.12.0;` Data Source=$ExcelFile;Extended Properties=Excel 12.0;") $strQuery="Select * from [Vendors$]" $ExcelRecordSet=$ExcelConnection.Execute($strQuery) do { Write-Host "EXEC sp_InsertVendors '" $ExcelRecordSet.Fields.Item("Vendor Code").Value "'" $ExcelRecordSet.MoveNext()} Until ($ExcelRecordSet.EOF) $ExcelConnection.Close() Script Disclaimer, for people who need to be told this sort of thing: Never trust any script, including those that you find here, until you understand exactly what it does and how it will act on your systems. Always check the script on a test system or Virtual Machine, not a production system. All scripts on this site are performed by a professional stunt driver on a closed course. Your mileage may vary. Void where prohibited. Offer good for a limited time only. Keep out of reach of small children. Do not operate heavy machinery while using this script. If you experience blurry vision, indigestion or diarrhea during the operation of this script, see a physician immediately. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• Ti Launchpad

  - by raysmithequip

  Just thought I would get a couple of notes up here for reference to anyone that is interested...it is now Feb 2011 and I have not been posting here enough to remember this blog. Back in Nov 2010 I ordered the Ti launchpad msp430, it is a little target board kit replete with a mini USB cable, two very inexpensive programmable mcu's and a couple of pin headers with a couple of led's on board, a spi connector some on board jumpers and two programmable micro switches....all for less than $5.00...INCLUDING SHIPPING!!....not bad when the ardruino's are running around 20.00 for the target board, atmega328 and cable off of eBay...I wont even mention the microchip pic right now.  Naw, for $5.00 the Ti launchpad kit is about the cheapest fun around...if-uns your a geek that is... Well, the launchpad was backordered for almost two months, came like Xmas eve in fact...I had almost forgotten it!! And really, it was way late and not my idea of an Xmas present for myself.  That would of been the web expressions 4 I bought a few weeks back.  With all the holidays, I did not even look at it till last week, in fact I passed the wrapped board around at my local ham club meeting during points of personal privilege....some oh's and ahhs but mostly duhs...I actually ordered it to avoid downloading the huge code compressor studio 4 (CCS) that was supposed to be included on the cd.  No cd.  I had already downloaded IAR  another programming IDE for these little micro bugs. In my spare time I toyed with IAR and the launchpad board but after about two days of playing delete the driver with windows I decided to just download CCS 4, the code limited version, and give that a shot......CCS 4, is a good rewrite from the earlier versions, it is based on Eclipse as an IDE and includes the drivers for the msp430 target board I received in the kit.  Once installed I quickly configured the debugger for the target chip which was already plugged into the dip socket at the factory, msp430G2131 from he drop down list and clicked ok...I was in!! The CCS4 is full of bells and whistles compared to the IAR, which I would of preferred for the simplicity.  But the code compressor studio really does have it all!!..the code limited version is free, and of all things will give you java script editor box.  The whole layout in debugger mode reminds me of any modern programmer IDE...I mean sure give me Tex anytime but you simply must admire all the boxes and options included in the GUI.  It was a simple matter to check the assembly code in the flash and ram memory that came preloaded for the launchpad kit.  Assembly.  I am right now looking for my old assembly textbooks...sure I remember how to use mov and add etc but a couple of the commands are a little more than vague anymore.  Still, these little mcu's are about 50 cents each and might just work in a couple of projects I have lined up for the near future.  I may document the code here.  Luckily, I plan to write the code in c++ for the main project but if it has to be assembly, no prob.  For reference, the program that came already on the 2131 in the kit was a temperature indicator that alternately flashed red and green leds and changed the intensity of either depending on whether the temp was rising or falling...neat.  Neat enough that it might be worthwhile banging out a little GUI in windows 7 to test the new user device system calls, maybe put a temp gauge widget up on the desktop...just to keep from getting bored.  If you see some assembly code on this blog, you know I was doing something with one of the many mcu's out there.....thats all for now, more to follow...a bit later, of course.

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• Sd card bigger than 2gb is not recognized in ubuntu 12.04

  - by dex1

  When I insert a card up to 2gb it is immediately seen by the system but if try it with bigger one it's not seen. I presume the issue is not due to the card reader itself as it reads all cards under windows 7 but due to linux driver. I could see some people having similar issues but no solution. Any help appreciated. GParted doesnt see cards bigger than 2gb. After insertion small card ubuntu@ubuntu:~$ dmesg [10169.384481] mmc0: new SD card at address a95c [10169.384870] mmcblk0: mmc0:a95c SD016 14.0 MiB [10169.386715] mmcblk0: p1 everything worked fine then I removed the small one and put 8gb, waited for 2min [10295.736422] mmc0: card a95c removed [10362.448383] sdhci: Switching to 1.8V signalling voltage failed, retrying with S18R set to 0 [10372.480076] mmc0: Timeout waiting for hardware interrupt. [10382.496146] mmc0: Timeout waiting for hardware interrupt. [10392.512149] mmc0: Timeout waiting for hardware interrupt. [10402.528145] mmc0: Timeout waiting for hardware interrupt. [10402.529267] mmc0: error -110 whilst initialising SD card [10402.748807] sdhci: Switching to 1.8V signalling voltage failed, retrying with S18R set to 0 [10412.768063] mmc0: Timeout waiting for hardware interrupt. [10422.784051] mmc0: Timeout waiting for hardware interrupt. [10432.800076] mmc0: Timeout waiting for hardware interrupt. [10442.816067] mmc0: Timeout waiting for hardware interrupt. [10442.817165] mmc0: error -110 whilst initialising SD card [10443.040805] sdhci: Switching to 1.8V signalling voltage failed, retrying with S18R set to 0 [10453.056145] mmc0: Timeout waiting for hardware interrupt. [10463.072139] mmc0: Timeout waiting for hardware interrupt. [10473.088050] mmc0: Timeout waiting for hardware interrupt. [10483.104046] mmc0: Timeout waiting for hardware interrupt. [10483.104107] mmc0: error -110 whilst initialising SD card [10483.328960] sdhci: Switching to 1.8V signalling voltage failed, retrying with S18R set to 0 [10493.344144] mmc0: Timeout waiting for hardware interrupt. ubuntu@ubuntu:~$ lspci 00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 03) 00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (secondary) (rev 03) 00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03) 00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03) 00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03) 00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03) 00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 03) 00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3) 00:1f.0 ISA bridge: Intel Corporation 82801HM (ICH8M) LPC Interface Controller (rev 03) 00:1f.1 IDE interface: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] (rev 03) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03) 07:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8072 PCI-E Gigabit Ethernet Controller (rev 16) 0a:01.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) 0a:01.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 02) 0a:01.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01) Same cards, same machine (same reader) only different OS(win7) work flawlessly. Some interesting reading I came across but is Chinese for me http://www.mail-archive.com/[email protected]/msg14598.html and another bit http://article.gmane.org/gmane.linux.kernel.mmc/11973/match=sd+card+not+recognized

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• Communication between state machines with hidden transitions

  - by slartibartfast

  The question emerged for me in embedded programming but I think it can be applied to quite a number of general networking situations e.g. when a communication partner fails. Assume we have an application logic (a program) running on a computer and a gadget connected to that computer via e.g. a serial interface like RS232. The gadget has a red/green/blue LED and a button which disables the LED. The LEDs color can be driven by software commands over the serial interface and the state (red/green/blue/off) is read back and causes a reaction in the application logic. Asynchronous behaviour of the application logic with regard to the LED color down to a certain delay (depending on the execution cycle of the application) is tolerated. What we essentially have is a resource (the LED) which can not be reserved and handled atomically by software because the (organic) user can at any time press the button to interfere/break the software attempt to switch the LED color. Stripping this example from its physical outfit I dare to say that we have two communicating state machines A (application logic) and G (gadget) where G executes state changes unbeknownst to A (and also the other way round, but this is not significant in our example) and only A can be modified at a reasonable price. A needs to see the reaction and state of G in one piece of information which may be (slightly) outdated but not inconsistent with respect to the short time window when this information was generated on the side of G. What I am looking for is a concise method to handle such a situation in embedded software (i.e. no layer/framework like CORBA etc. available). A programming technique which is able to map the complete behaviour of both participants on classical interfaces of a classical programming language (C in this case). To complicate matters (or rather, to generalize), a simple high frequency communication cycle of A to G and back (IOW: A is rapidly polling G) is out of focus because of technical restrictions (delay of serial com, A not always active, etc.). What I currently see as a general solution is: the application logic A as one thread of execution an adapter object (proxy) PG (presenting G inside the computer), together with the serial driver as another thread a communication object between the two (A and PG) which is transactionally safe to exchange The two execution contexts (threads) on the computer may be multi-core or just interrupt driven or tasks in an RTOS. The com object contains the following data: suspected state (written by A): effectively a member of the power set of states in G (in our case: red, green, blue, off, red_or_green, red_or_blue, red_or_off...etc.) command data (written by A): test_if_off, switch_to_red, switch_to_green, switch_to_blue operation status (written by PG): operation_pending, success, wrong_state, link_broken new state (written by PG): red, green, blue, off The idea of the com object is that A writes whichever (set of) state it thinks G is in, together with a command. (Example: suspected state="red_or_green", command: "switch_to_blue") Notice that the commands issued by A will not work if the user has switched off the LED and A needs to know this. PG will pick up such a com object and try to send the command to G, receive its answer (or a timeout) and set the operation status and new state accordingly. A will take back the oject once it is no longer at operation_pending and can react to the outcome. The com object could be separated of course (into two objects, one for each direction) but I think it is convenient in nearly all instances to have the command close to the result. I would like to have major flaws pointed out or hear an entirely different view on such a situation.

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• Find Rules and Defaults using the PowerShell for SQL Server 2008 Provider

  - by BuckWoody

  I ran into an issue the other day where I couldn't set up some features in SQL Server 2008 because they ddon't support the use of Rules or Defaults. Let me explain a little more about that. In older versions of SQL Server, you could decalre a "Rule" or "Default" just like you do with a Table Constraint today. You would then "bind" these rules or defaults to the tables you wanted them to apply to. Sure, there are advantages and disadvantages to this approach, but it certainly isn't standard Data Definition Language (DDL), so they are deprecated and many features don't work with them any more. Honestly, it's been so long since I've seen them in use I had forgotten to even check for them. My suspicion is that this was a new database created with an older script. Nevertheless, the feature failed when it ran into one. Immediately I thought that I had better build some logic into my process to try and catch those - but how? Lots of choices here, but since I was using PowerShell to do the rest of the work, I thought I would investigate how easy it would be just to do it there. And using the SQL Server 2008 provider, this could not be simpler. I won't show all of the scrupt here, because I was testing for these as a condition and then bailing out of the script and sending a notification, but all it is using is the DIR command! Here's an example on my "UNIVAC" computer for the "pubs" database: Find Rules using PowerShell: dir SQLSERVER:\SQL\UNIVAC\DEFAULT\Databases\pubs\Rulesdir SQLSERVER:\SQL\UNIVAC\DEFAULT\Databases\pubs\Defaults And this one will look in all databases:  #All Databases:dir SQLSERVER:\SQL\UNIVAC\DEFAULT\Databases | select-object -property Name, Rules, Defaults Awesome. Love me some PowerShell. Script Disclaimer, for people who need to be told this sort of thing: Never trust any script, including those that you find here, until you understand exactly what it does and how it will act on your systems. Always check the script on a test system or Virtual Machine, not a production system. Yes, there are always multiple ways to do things, and this script may not work in every situation, for everything. It’s just a script, people. All scripts on this site are performed by a professional stunt driver on a closed course. Your mileage may vary. Void where prohibited. Offer good for a limited time only. Keep out of reach of small children. Do not operate heavy machinery while using this script. If you experience blurry vision, indigestion or diarrhea during the operation of this script, see a physician immediately.       Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• The Healthy Tension That Mobility Creates

  - by Kathryn Perry

  A guest post by Hernan Capdevila, Vice President, Oracle Fusion Apps In my previous post, I talked about the value of the mobile revolution on businesses and workers. Now let me put on a different hat and view the world from the IT department and the IT leader’s viewpoint. The IT leader has different concerns – around privacy, potential liability of information leakage, and intellectual property protection. These concerns and the leader’s goals create a healthy tension with the users. For example, effective device management becomes a must have for the IT leader, especially if you look at the Android ecosystem as an example. There are benefits to the Android strategy, but there are also drawbacks, such as uniformity – in device management, in operating systems, and in the application taxonomy and capabilities. Whereas, if you compare Android to iOS, Apple's operating system, iOS is more unified, more streamlined, and easier to manage. In either case, this is where mobile device management in the cloud makes good sense. I don't think IT departments should be hosting device management and managing that complexity. It should be a cloud service and I predict it's going to be key for our customers. A New Focus for IT Departments So where does that leave the IT departments? I think their futures are in governance, which is a more strategic play than a tactical one. Device management is tactical and it's the “now” topic. But the mobile phenomenon, if you will, is going to drive significant change in terms of how IT plans, hosts, and deploys enterprise applications. For example, opening up enterprise applications for mobile users presents some challenges unless you deploy more complicated network topologies, such as virtual private networks and threat protection technology. If you really want employees to be mobile you need to remove those kinds of barriers. But I don’t think IT departments want to wrestle with exposing their private enterprise data centers and being responsible for hosted business applications – applications in a sense that they’re making vulnerable to the public world. This opens up a significant need and a significant driver for cloud applications. However, it's not just about taking away the complexity – it's also about taking away the responsibility. Why should every business have to carry the responsibility and figure out all the nuts and bolts of how to protect themselves in this public, mobile world? When you use apps in the cloud, either your vendor or your hosting partner should have figured all that out. They need to assure the business that they are adhering to all sorts of security and compliance regulations so users can be connected and have access to information anywhere anytime. More Ideas and Better Service What’s more interesting is the world of possibilities that the connected, cloud-based world enables. I believe that the one-size-fits-all, uber-best practices, lowest-common denominator-like capabilities will go away. IT will now be able to solve very specific business challenges for the different corporate functions it serves. In this new world, IT will play a key role in enabling different organizations within a company to be best in class and delivering greater value to the line of business managers. IT will actually help to differentiate. Net result is a more agile workforce and business because each department is getting work done its own way.

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• Nokia Lumia 920 Windows Phone 8 Announcement

  - by Tim Murphy

  Today Nokia and Microsoft had an event to officially introduce the Lumia 920.  Below is a rundown of some of the things I found interesting. As a person who likes photography there was a lot to drool over.  The main feature that caught my attention was PureView with its optical stabilization.  This alone should improve the majority of you pictures.  Add to that the SmartShoot Object remover that uses multiple images to remove unwanted people or objects that move through your picture and you never have to accept reality again. For the most part the lenses concept introduced in Windows Phone 8 just makes the usability of leveraging camera better.  Of course that is Microsoft’s selling point.  One lens that caught my attention was the Bing lens.  I have to say it is about time that we can take pictures and use them to search for answers using Bing. There were a couple of features shown that involved augmented reality.  One was similar to the yapf application that is already in the market which overlays restaurants and other destination over live camera views.  The other was using the navigation directions with a live view. Then you get down to some of the physical features of the Lumia 920.  The one that got the most stage time is that it has a great 2000mah battery which can be charged wirelessly.  They also pointed out the improved glare reduction of the 4.5 in. curved glass screen.  This hardware improvement is improved further with software that detects glare conditions and adjusts the display attributes to enhance viewing ease. Adding to the wireless cool factor of the Lumia 920 is the general NFC capabilities.  This was demonstrated with NFC docking stations as well as JBL speakers and headphones. There was one more hardware feature that I applauded.  The super sensitive touch screen did away with one of my pet peeves with capacitive touch screens.  You will never have to remove you gloves to operate your phone again.  The mittens that they did the demo with looked more like boxing gloves. I was disappointed with Joe Belfiore said that they were only going to show a couple of new features of the Windows Phone 8 and would hear more at future events.  One of the things he did show is the ability to customize which buttons you preferred as defaults in IE10.  For example you could have the folders button where the refresh button normally is.  He also showed that at long last you can natively take screenshots on your phone.  Hopefully he will be back quickly to give us the rest of the features. The most disappointing part of the event was that we never found out when they would be released or how much they would cost.  Let’s hope this comes soon.  Even with these couple of items still left on my wish list I can’t wait to get my hands on a Lumia 920.  del.icio.us Tags: Windows Phone,Windows Phone 8,Nokia,Lumia,Lumia 920,Microsoft

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• How to make Ubuntu recognize an unknown external display (so I can adjust its resolution)?

  - by WagnerAA

  I have a Dell laptop with an external monitor attached (a Samsumg SyncMaster 931c). My laptop display was recognized, and I can adjust its optimum resolution. My external display is still unknown, thus I'm stuck at a lower resolution (1024x768): I tried the "Detect Displays" button, but it didn't work, nothing happens. I recently upgraded from Ubuntu 12.04 to 12.10. Things were working before. I don't know if I can actually change this configuration, or if this is a bug. I searched for an answer here and also in Launchpad's website, but found none. I even tried to install Nvidia drivers, and just messed things up. It seems I wasn't even using nvidia before, as I guessed by looking at my additional drivers configuration: My laptop has an Intel chipset, I guess: $ dpkg --get-selections | grep -i -e nvidia -e intel intel-gpu-tools install libdrm-intel1:amd64 install libdrm-intel1:i386 install nvidia-common install xserver-xorg-video-intel install I don't have an xorg.conf file (I think this is nvidia related, am I right?): $ cat /etc/X11/xorg.conf cat: /etc/X11/xorg.conf: No such file or directory $ ls -l /etc/X11/ total 76 drwxr-xr-x 2 root root 4096 Out 19 23:41 app-defaults drwxr-xr-x 2 root root 4096 Abr 25 2012 cursors -rw-r--r-- 1 root root 18 Abr 25 2012 default-display-manager drwxr-xr-x 4 root root 4096 Abr 25 2012 fonts -rw-r--r-- 1 root root 17394 Dez 3 2009 rgb.txt lrwxrwxrwx 1 root root 13 Mai 1 03:33 X -> /usr/bin/Xorg drwxr-xr-x 3 root root 4096 Out 19 23:41 xinit drwxr-xr-x 2 root root 4096 Jan 23 2012 xkb -rw-r--r-- 1 root root 0 Out 24 08:55 xorg.conf.nvidia-xconfig-original -rwxr-xr-x 1 root root 709 Abr 1 2010 Xreset drwxr-xr-x 2 root root 4096 Out 19 10:08 Xreset.d drwxr-xr-x 2 root root 4096 Out 19 10:08 Xresources -rwxr-xr-x 1 root root 3730 Jan 20 2012 Xsession drwxr-xr-x 2 root root 4096 Out 20 00:11 Xsession.d -rw-r--r-- 1 root root 265 Jul 1 2008 Xsession.options -rw-r--r-- 1 root root 13 Ago 15 06:43 XvMCConfig -rw-r--r-- 1 root root 601 Abr 25 2012 Xwrapper.config Here is some information I gathered by looking at other related posts: $ sudo lshw -C display; lsb_release -a; uname -a *-display:0 description: VGA compatible controller product: Mobile 4 Series Chipset Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 07 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:48 memory:f6800000-f6bfffff memory:d0000000-dfffffff ioport:1800(size=8) *-display:1 UNCLAIMED description: Display controller product: Mobile 4 Series Chipset Integrated Graphics Controller vendor: Intel Corporation physical id: 2.1 bus info: pci@0000:00:02.1 version: 07 width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: latency=0 resources: memory:f6100000-f61fffff LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch:cxx-3.0-amd64:cxx-3.0-noarch:cxx-3.1-amd64:cxx-3.1-noarch:cxx-3.2-amd64:cxx-3.2-noarch:cxx-4.0-amd64:cxx-4.0-noarch:desktop-3.1-amd64:desktop-3.1-noarch:desktop-3.2-amd64:desktop-3.2-noarch:desktop-4.0-amd64:desktop-4.0-noarch:graphics-2.0-amd64:graphics-2.0-noarch:graphics-3.0-amd64:graphics-3.0-noarch:graphics-3.1-amd64:graphics-3.1-noarch:graphics-3.2-amd64:graphics-3.2-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-3.2-amd64:printing-3.2-noarch:printing-4.0-amd64:printing-4.0-noarch:qt4-3.1-amd64:qt4-3.1-noarch Distributor ID: Ubuntu Description: Ubuntu 12.10 Release: 12.10 Codename: quantal Linux Batcave 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ xrandr -q Screen 0: minimum 320 x 200, current 2304 x 800, maximum 32767 x 32767 LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 286mm x 1790mm 1280x800 59.9*+ 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 connected 1024x768+1280+32 (normal left inverted right x axis y axis) 0mm x 0mm 1024x768 60.0* 800x600 60.3 56.2 848x480 60.0 640x480 59.9 DP1 disconnected (normal left inverted right x axis y axis) If there's anything else I can do, any other information I can post here, to help me configure this external display, please let me know. If this is actually a bug, I apologize (I know bugs are not allowed here), but I really wasn't sure. And I will promptly file a bug report in Launchpad if that's the case. Thanks a lot in advance. ;)

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• Deploying Oracle ADF Essentials Applications to Glassfish

  - by Shay Shmeltzer

  With the new Oracle ADF Essentials offering you can now deploy applications that leverage Oracle ADF on the open source Glassfish 3.1 server. Deployment is documented in the official JDeveloper and ADF documentation (here) but below is a summary of the steps and a video of the steps you'll need to take to get a basic Oracle ADF Essentials application to work on GlassFish. Note - to make starting/stopping GlassFish easier for my demo I used my GlassFish extension that you can get here. First we'll install some ADF Runtime libraries on GlassFish Download and install Glassfish (Note - if you also have an Oracle DB on the same machine, you'll want to switch GlassFish's HTTP port to something else instead of 8080). Download the Oracle ADF Essentials packaging - this will get you an adf_essentials.zip file. Copy the adf_essentials.zip to the lib directory of your Glassfish domain - on a default windows install this would be: C:\glassfish3\glassfish\domains\domain1\lib Go the the above lib directory and issue a unzip -j adf_essentials.zip This will extract the ADF libraries to the directory. Now you can start the Glassfish server. Now let's configure Glassfish to handle applications of the ADF type: Invoke the admin console of glassfish (http://localhost:4848) and log into your admin account. Go to Configurations->Server-config->JVM Settings and choose the JVM Options tab Add the following entries: -XX:MaxPermSize=512m (note this entry should already exist so just make sure it has a big enough value) -Doracle.mds.cache=simple While we are in the admin console, we can also define JDBC connections that will be used by our application. Go into Resources->JDBC->JDBC Connection Pools and click to create a New one Give it a name and choose the resource type to be javax.sql.XADataSource and choose Oracle as the Database Driver vendor. Click Next Scroll down to the Additional Properties section and start filling in the information for your database. The values for an Oracle XE will be (user=hr, databaseName = XE, Password=hr, ServerName=localhost, DriverType=thin, PortNumber=1521) Click Finish Click Ping to check your connection works. Now define a new JDBC Resource that will use the pool you just defined. In my example I called the resource jdbc/HRDS You will need this name to match the name in your Application Module connection configuraiton.Now you can re-start the Glassfish server for the changes to take effect. Get an ADF application going (you can use the regular Fusion Application template for this) Go into the project properties of your viewController project, under the deployment section click to edit the deployment profile that is defined there. Go to Platform and choose Glassfish 3.1 from the drop down list. Click ok to go back to your project. Go to Application -> Application Properties-> Deployment Go to Platform and choose Glassfish 3.1 from the drop down list. Click ok to go back to your project. This step will make sure that JDeveloper will autoamtically add the necessary ADF libraries to the EAR file that is being generated for deployment on Glassfish  Go to your Application->Deploy and deploy either to an EAR file or directly to a Glassfish server connection that you created. Things should just work, but if they don't then look up the server.log in the log directory and check out what error is in there. Here is a video demo of the various steps: Note - right now the deployment of an ADF application takes about 2 minutes on my machine we are hoping to be able to improve this timing in the future. People who are more familiar with Glassfish might want to explore using exploded directory deployment and see if they can get it to work.

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• Graphics trouble after resuming from hibernate or suspend

  - by Voyagerfan5761

  I have a Dell Inspiron 2650 (with NVidia graphics, using nouveau drivers) that I'm using to try out Ubuntu. It's all great, except that Hibernate and Suspend aren't usable. Yes, I know that questions about power-save issues are rampant in the Linux support universe, but it seems that every time I find a solution it's for a very specific hardware combination and doesn't apply to me. So anyway, here goes. When I resume from either power-saving mode, I'll get graphics problems anywhere on the range from a few scattered random-colored pixels that won't change; all the way to full-screen patterns that don't change as I move the mouse, hit keys on the keyboard, or even bring up the shutdown dialog using the power button. Those full-screen issues (which may involve stripes with random pixels, partial black screen, or both) always end in me forcing the machine to shut down by holding the power button. I haven't done much testing yet to determine what severity level is most commonly associated with each mode, but I do avoid using either power-save option because of these issues. I'll add info on my hardware as I can gather it (no home internet connection, and this laptop is tethered to my desk by a dead battery and casing degradation). Please feel free to request something specific in the question comments. Hardware Info See this hardinfo report for my system's hardware configuration. (No, my username is not "myuser"; I sanitized hardinfo's output before publishing it.) Screenshots These screenshots are from a relatively mild occurrence, which happened after the second hibernation I took that session. The first one worked great, though I used the wireless card and Firefox heavily between the two hibernation attempts. Take a look at what happened when I opened my home directory in Nautilus and scrolled it: See below for the situations I've tested so far. The real trouble comes when the machine resumes to an unusable state; in such cases I can't even unlock the screen or properly reboot, much less take a screenshot. I have a hunch that putting a CD in the drive will cause such major failures, and I will try that at some point; see related question. Situations Tested Maverick (10.10) Suspend Seems to suspend nicely with nothing running Seems to suspend nicely with flash drive plugged in On resume from suspend with no flash drive, Terminal and gedit running: Funky graphics on top of log output, then blank screen with pixelated cursor; no response to power button (normally will shutdown 60 seconds later) Hibernate Seems to hibernate nicely with nothing running Seems to hibernate nicely with a few apps (Terminal, Mouse preferences) running Seems to not hibernate when flash drive plugged in Seems to not hibernate when System Monitor is running Have encountered failed hibernation (after several hours and one successful hibernate/thaw cycle) with no external media connected and no programs running except normal background stuff Natty LiveCD (11.04_2010-12-22) When I tested it, Natty wouldn't stay logged in. It played part of the login sound and then [ OK ] appeared in the top right corner (white-on-black terminal text) for a few seconds. Then it kicked me back to the Unlock screen. It did that four times before I gave up and just tested suspend from the Unlock screen. Suspend Resumed to vertical gray and black lines 2px (?) wide, then shifted to vertical "jail bars" of black over a black screen with above-described random pixels and mouse pointer. No apparent response to input from mouse (clicking randomly). Keyboard and touchpad unrecognized.

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• It happens only at Devoxx ...

  - by arungupta

  After attending several Java conferences world wide, this was my very first time at Devoxx. Here are some items I found that happens only at Devoxx ... Pioneers of theater-style seating - This not only provides comfortable seating for each attendee but the screens are very clearly visible to everybody in the room. Intellectual level of attendees is very high - Read more explanation on the Java EE 6 lab blog. In short, a lab, 1/3 of the content delivered at Devoxx 2011, could not be completed at other developer days in more than 1/3 the time. Snack box for lunches - Even though this suits well to the healthy lifestyle of multiple-snacks-during-a-day style but leaves attendees hungry sooner in the day. The longer breaks before the next snack in the evening does not help at all. Fortunately, Azure cupcakes and Android ice creams turned out to be handy. I finally carried my own apple :-) Wrist band instead of lanyard - The good part about this is that once tied to your hand then you are less likely to forget in your room. But OTOH you are a pretty much a branded conference attendee all through out the city. It was cost effective as it costed 20c as opposed to 1 euro for the lanyard. Live streaming from theater #8 (the biggest room) on parleys.com All talks recorded and released on parleys.com over next year. This allows attendees to not to miss any session and watch replay at their own leisure. Stephan promised to start sharing the sessions by mid December this year. No need to pre-register for a session - This is true for most of the conferences but bigger rooms (+ overflow room for key sessions) provide sufficient space for all those who want to attend the session. And of course all sessions are available on parleys.com anyway! Community votes on whiteboard - Devoxx attendees gets a chance to vote on topics ranging from their favorite non-Java language, operating system, or love from Oracle. Captured pictures at the end of Day 2 are shown below. Movie on the last but one night - This year it was The Adventures of Tintin and was lots of fun. Fries with mayo - This is a typical Belgian thing. Guys going in ladies room to avoid the long queues ... wow! Tweet wall everywhere and I mean literally everywhere, in rooms, hallways, front desk, and other places. The tweet picking algorithm was not very clear as I never saw my tweet appear on the wall ;-) You can also watch it at wall.devoxx.com. Cozy speaker dinner with great food and wine List of parallel and upcoming sessions displayed on the screen - This makes the information more explicit with the attendees. REST API with multiple mobile clients - This API is also used by some other conferences as well. And there always is iphone.devoxx.com. Steering committee members were recognized multiple times. The committee members were clearly identifiable wearing red hoodies. The wireless SSID was intuitive "Devoxx" but hidden to avoid some crap from Microsoft Windows. All of 9000 addresses were used up most of the times with each attendee having multiple devices. A 1 GB fibre optic cable was stretched to Metropolis to support the required network bandwidth. Stephan is already planning to upgrade the equipment and have a better infrastructure next year. Free water, soda, juice in a cooler Kinect connected to TV screens so that attendees can use their hands to browse through the list of sesssions. #devoxxblog, #devoxxwomen, #devoxxfrance, #devoxxgreat, #devoxxsuggestions And Devoxx attendees are called Devoxxians ... how cool is that ? :-) What other things do you think happen only at Devoxx ? And now the pictures from the community whiteboard: And a more complete album (including bigger pics of community votes) is available below:

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• Ubuntu 12.04 host – Virtualbox 4.1.12 Guest=Windows 7 – Network will not connect

  - by user287529

  Ubuntu 12.04 host – Virtualbox 4.1.12 Guest=Windows 7 – Network will not connect. I'm using Ubuntu 12.04 on an Acer Aspire 5742-7645 laptop with 4GB memory, Intel Core i3 processor, Intel HD Graphics, DVD drive, 802.1 b/g/n, and 500 GB HD. I connect to my router via a wireless connection. I have installed Virutalbox 4.1.12 from the Ubuntu Software Center and installed Guest additions 4.1.12 in the Windows 7 guest session. I have Windows XP and Windows 7 installed as guests in Virtual box The network settings are different for XP and 7 – see below. Network Settings XP guest = Adapter 1: PCnet-FAST III (NAT) - Network works perfectly and has worked well for several years. Network Settings Win 7 = Adapter 1: Intel PRO/1000 MT Desktop (Bridged adapter, eth1) Promiscuous Mode = allow all Cable connected = checked When I originally installed Windows 7, I tried NAT and the guest network would not connect. Once I changed the setting to the above (Bridged) the Network worked perfectly. However, what I believe is after updates (not sure if it was an Ubuntu or Windows update) the guest network stopped working and I can not get it to connect. Interfaces file content auto lo iface lo inet loopback Ifconfig yields lou@lou-Aspire-5742:~$ ifconfig eth0 Link encap:Ethernet HWaddr 1c:75:08:09:f6:5c UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:16 eth1 Link encap:Ethernet HWaddr 4c:0f:6e:7c:9f:01 inet addr:192.168.1.104 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::4e0f:6eff:fe7c:9f01/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:18095 errors:2 dropped:0 overruns:0 frame:24344 TX packets:9281 errors:47 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:5301926 (5.3 MB) TX bytes:1441885 (1.4 MB) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:3208 errors:0 dropped:0 overruns:0 frame:0 TX packets:3208 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:294088 (294.0 KB) TX bytes:294088 (294.0 KB) Ipconfig yields the following: Windows IP Configuration Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::38ba:dbca:a21d:c3d1%13 Autoconfiguration IPv4 Address. . : 169.254.195.209 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : Tunnel adapter isatap.{B292E440-679D-4FC5-8E34-77D6804669C8}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Tunnel adapter Local Area Connection* 11: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : I'm not sure what else to do. Can someone provide the troubleshooting steps to determine what the problem is and possible solution?

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• Library order is important

  - by Darryl Gove

  I've written quite extensively about link ordering issues, but I've not discussed the interaction between archive libraries and shared libraries. So let's take a simple program that calls a maths library function: #include <math.h int main() { for (int i=0; i<10000000; i++) { sin(i); } } We compile and run it to get the following performance: bash-3.2$ cc -g -O fp.c -lm bash-3.2$ timex ./a.out real 6.06 user 6.04 sys 0.01 Now most people will have heard of the optimised maths library which is added by the flag -xlibmopt. This contains optimised versions of key mathematical functions, in this instance, using the library doubles performance: bash-3.2$ cc -g -O -xlibmopt fp.c -lm bash-3.2$ timex ./a.out real 2.70 user 2.69 sys 0.00 The optimised maths library is provided as an archive library (libmopt.a), and the driver adds it to the link line just before the maths library - this causes the linker to pick the definitions provided by the static library in preference to those provided by libm. We can see the processing by asking the compiler to print out the link line: bash-3.2$ cc -### -g -O -xlibmopt fp.c -lm /usr/ccs/bin/ld ... fp.o -lmopt -lm -o a.out... The flag to the linker is -lmopt, and this is placed before the -lm flag. So what happens when the -lm flag is in the wrong place on the command line: bash-3.2$ cc -g -O -xlibmopt -lm fp.c bash-3.2$ timex ./a.out real 6.02 user 6.01 sys 0.01 If the -lm flag is before the source file (or object file for that matter), we get the slower performance from the system maths library. Why's that? If we look at the link line we can see the following ordering: /usr/ccs/bin/ld ... -lmopt -lm fp.o -o a.out So the optimised maths library is still placed before the system maths library, but the object file is placed afterwards. This would be ok if the optimised maths library were a shared library, but it is not - instead it's an archive library, and archive library processing is different - as described in the linker and library guide: "The link-editor searches an archive only to resolve undefined or tentative external references that have previously been encountered." An archive library can only be used resolve symbols that are outstanding at that point in the link processing. When fp.o is placed before the libmopt.a archive library, then the linker has an unresolved symbol defined in fp.o, and it will search the archive library to resolve that symbol. If the archive library is placed before fp.o then there are no unresolved symbols at that point, and so the linker doesn't need to use the archive library. This is why libmopt needs to be placed after the object files on the link line. On the other hand if the linker has observed any shared libraries, then at any point these are checked for any unresolved symbols. The consequence of this is that once the linker "sees" libm it will resolve any symbols it can to that library, and it will not check the archive library to resolve them. This is why libmopt needs to be placed before libm on the link line. This leads to the following order for placing files on the link line: Object files Archive libraries Shared libraries If you use this order, then things will consistently get resolved to the archive libraries rather than to the shared libaries.

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• Comparing Apples and Pairs

  - by Tony Davis

  A recent study, High Costs and Negative Value of Pair Programming, by Capers Jones, pulls no punches in its assessment of the costs-to- benefits ratio of pair programming, two programmers working together, at a single computer, rather than separately. He implies that pair programming is a method rushed into production on a wave of enthusiasm for Agile or Extreme Programming, without any real regard for its effectiveness. Despite admitting that his data represented a far from complete study of the economics of pair programming, his conclusions were stark: it was 2.5 times more expensive, resulted in a 15% drop in productivity, and offered no significant quality benefits. The author provides a more scientific analysis than Jon Evans’ Pair Programming Considered Harmful, but the theme is the same. In terms of upfront-coding costs, pair programming is surely more expensive. The claim of productivity loss is dubious and contested by other studies. The third claim, though, did surprise me. The author’s data suggests that if both the pair and the individual programmers employ static code analysis and testing, then there is no measurable difference in the resulting code quality, in terms of defects per function point. In other words, pair programming incurs a massive extra cost for no tangible return in investment. There were, inevitably, many criticisms of his data and his conclusions, a few of which are persuasive. Firstly, that the driver/observer model of pair programming, on which the study bases its findings, is far from the most effective. For example, many find Ping-Pong pairing, based on use of test-driven development, far more productive. Secondly, that it doesn’t distinguish between “expert” and “novice” pair programmers– that is, independently of other programming skills, how skilled was an individual at pair programming. Thirdly, that his measure of quality is too narrow. This point rings true, certainly at Red Gate, where developers don’t pair program all the time, but use the method in short bursts, while tackling a tricky problem and needing a fresh perspective on the best approach, or more in-depth knowledge in a particular domain. All of them argue that pair programming, and collective code ownership, offers significant rewards, if not in terms of immediate “bug reduction”, then in removing the likelihood of single points of failure, and improving the overall quality and longer-term adaptability/maintainability of the design. There is also a massive learning benefit for both participants. One developer told me how he once worked in the same team over consecutive summers, the first time with no pair programming and the second time pair-programming two-thirds of the time, and described the increased rate of learning the second time as “phenomenal”. There are a great many theories on how we should develop software (Scrum, XP, Lean, etc.), but woefully little scientific research in their effectiveness. For a group that spends so much time crunching other people’s data, I wonder if developers spend enough time crunching data about themselves. Capers Jones’ data may be incomplete, but should cause a pause for thought, especially for any large IT departments, supporting commerce and industry, who are considering pair programming. It certainly shouldn’t discourage teams from exploring new ways of developing software, as long as they also think about how to gather hard data to gauge their effectiveness.

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• Wired connection periodically disconnects requires ipconfig /release and /renew to reconnect

  - by Sesame

  I just got back into University and after a day of using the internet I suddenly was unable to visit other webpages even though I was still able to chat. I restarted the computer and the internet could no longer visit webpages at all. I got a DNS error from the browser (chrome) and the troubleshooter. The connection comes up as "Network 3" even though It was "Network 2" when it worked. I compared ipconfig /all logs and they seemed identical when it was and was not working. I've found two ways to get internet connection (they no longer work): run ipconfig /release and ipconfig /renew several times set a random address and have the troubleshooter fix the new found dhcp problem (before it says dns cannot fix). I checked and it said DHCP was enabled. But either step one or two usually needs to be repeated several times before the network will change back to "network 2" from the defunct "network 3" and after an hour or so I have problems again. I've tried: Uninstalling windows defender and turning off firewall (windows firewall). Updating Qualcomm Ethernet driver - it is up to date. System Restore (problem resurfaces quickly...it's possible this has something to do with windows update?) Flushing dns and setting dns myself (google one and others). Booting in safe mode with networking...didn't fix anything Reinstalling Ethernet Driver Using other ethernet cable, other wall port. I'm out of ideas. Ipconfig /all: Windows IP Configuration Host Name . . . . . . . . . . . . : NGoller Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : Home Ethernet adapter UConnect: Connection-specific DNS Suffix . : Home Description . . . . . . . . . . . : Qualcomm Atheros AR8151 PCI-E Gigabit Ethernet Controller Physical Address. . . . . . . . . : 90-2B-34-50-33-F4 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : fd00::2086:628:f0a1:73c3(Preferred) Temporary IPv6 Address. . . . . . : fd00::c86b:370:b1d9:bd73(Preferred) Link-local IPv6 Address . . . . . : fe80::2086:628:f0a1:73c3%11(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.0.33(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Wednesday, August 28, 2013 11:58:37 PM Lease Expires . . . . . . . . . . : Thursday, August 29, 2013 11:58:37 PM Default Gateway . . . . . . . . . : 192.168.0.1 DHCP Server . . . . . . . . . . . : 192.168.0.1 DNS Servers . . . . . . . . . . . : 192.168.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.Home: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Home Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes I'm getting these errors commonly: The IP address lease 155.97.227.199 for the Network Card with network address 0x902B345033F4 has been denied by the DHCP server 10.0.1.1 (The DHCP Server sent a DHCPNACK message). Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected. By the way, Operating System: Windows 7 - 64 Bit. Have downloaded latest windows updates. Update: And my two fixes don't work any more :( . This is now what happens when I try to Ipconfig /renew: C:\Users\Nikko\Desktop>ipconfig /renew Windows IP Configuration An error occurred while renewing interface Local Area Connection : The name spec ified in the network control block (NCB) is in use on a remote adapter. The NCB is the data. An error occurred while releasing interface Loopback Pseudo-Interface 1 : The sy stem cannot find the file specified. Update 2: So my internet is randomly working again today. The IP address I had before was a local one while the university address should start with 155... I didn't do anything to the settings...it's bizarre that it all of a sudden works. Thanks!

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• Gnome-shell fails to load on 12.10

  - by Githlar

  I'm usually the one answering questions, but in this I'm throughly stumped! My Setup: Ubuntu 12.10 (Dist upgrade form 12.04) ATI M96 [Mobility Radeon HD 4650] Upon the first installation of 12.10 I had all kinds of issues getting the Legacy ATI drivers to install (I guess the source for the drivers isn't kosher with kernel 3.5). So, I added the repository ppa:makson96/fglrx - which has a version of the ATI source patched to work with kernel 3.5. After installation of fglrx-legacy from that PPA, gnome-shell and all my graphics work fine... until today. The Problem I unsuspended my computer today and the screen was black (not off, the black from the gnome lock screen). I'd move my mouse/hit a key and the background would flash and then it'd go back to black. Restarted via VT1 Logged into Gnome (gnome-shell) session, but no gnome-shell! Investigation: First, I went to VT1 and tried export DISPLAY=:0;gnome-shell --replace. It appeared to work fine, switch back to X and nothing. Went back to VT1 and saw this error message: JS ERROR: !!! Exception was: TypeError: Object 0x7fc748129c30 is not a subclass of (null), it's a xO JS ERROR: !!! message = '"Object 0x7fc748129c30 is not a subclass of (null), it's a xO"' JS ERROR: !!! fileName = '"/usr/share/gnome-shell/js/ui/tweener.js"' JS ERROR: !!! lineNumber = '218' JS ERROR: !!! stack = '"()@/usr/share/gnome-shell/js/ui/tweener.js:218 wrapper()@/usr/share/gjs-1.0/lang.js:204 ()@/usr/share/gjs-1.0/lang.js:145 ()@/usr/share/gjs-1.0/lang.js:239 init()@/usr/share/gnome-shell/js/ui/tweener.js:49 init()@/usr/share/gnome-shell/js/ui/environment.js:96 @<main>:1 "' Window manager warning: Log level 32: Execution of main.js threw exception: TypeError: Object 0x7fc748129c30 is not a subclass of (null), it's a xO Note: Everywhere it says "it's a xO", xO is actually garbled and changes every time (I'm thinking memory corruption?) This error is thrown by line 96 of /usr/share/gnome-shell/js/ui/environment.js: tweener.Init() Did a purge of fglrx-legacy, reboot, reinstall fglrx-legacy, reboot... same thing. Did a ppa-purge of ppa:gnome3-team/gnome3, and reinstalled gnome-shell and ubuntu-desktop from the standard repositores... same thing. I'm really at a loss here. I love gnome-shell and after using it for nearly a year now gnome classic just seems so archaic. Additional Information Apt log from the day I first suspended my machine (these are upgrades from the gnome3-team/gnome3 ppa and ubuntu-wine/ppa ppa): Start-Date: 2012-11-24 17:30:28 Commandline: aptdaemon role='role-commit-packages' sender=':1.618' Install: gkbd-capplet:amd64 (3.6.0-0ubuntu1), gnome-control-center-unity:amd64 (1.0-0ubuntu1~ubuntu12.10.1) Upgrade: nautilus:amd64 (3.6.2-0ubuntu0.1~quantal1, 3.6.3-0ubuntu2~ubuntu12.10.1), libgnome-control-center1:amd64 (3.4.2-0ubuntu19, 3.6.3-0ubuntu6~ubuntu12.10.1), wine1.5-i386:i386 (1.5.17-0ubuntu4, 1.5.18-0ubuntu1), wine1.5:amd64 (1.5.17-0ubuntu4, 1.5.18-0ubuntu1), gnome-settings-daemon:amd64 (3.4.2-0ubuntu14, 3.6.3-0ubuntu1~ubuntu12.10.1), gnome-control-center-data:amd64 (3.4.2-0ubuntu19, 3.6.3-0ubuntu6~ubuntu12.10.1), gnome-accessibility-themes:amd64 (3.6.0.2-0ubuntu1, 3.6.2-0ubuntu2~ubuntu12.10.1), gnome-themes-standard:amd64 (3.6.0.2-0ubuntu1, 3.6.2-0ubuntu2~ubuntu12.10.1), wine1.5-amd64:amd64 (1.5.17-0ubuntu4, 1.5.18-0ubuntu1), nautilus-data:amd64 (3.6.2-0ubuntu0.1~quantal1, 3.6.3-0ubuntu2~ubuntu12.10.1), gnome-control-center:amd64 (3.4.2-0ubuntu19, 3.6.3-0ubuntu6~ubuntu12.10.1), libnautilus-extension1a:amd64 (3.6.2-0ubuntu0.1~quantal1, 3.6.3-0ubuntu2~ubuntu12.10.1) End-Date: 2012-11-24 17:31:32 fglrxinfo (driver appears to be working): display: :0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: ATI Mobility Radeon HD 4650 OpenGL version string: 3.3.11653 Compatibility Profile Context Does anybody have any further ideas?

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• installer can't find partition, but fdisk can find them

  - by pxd

  I'm installing ubuntu 12.04, my system had install 2 system -- winxp and ubuntu 10.10. Now, I want to update ubuntu to 12.04. I use usb disk to install 12.04. But, the installer can't not find my partition in my harddisk. But, the fdisk can find them. Can you help me? How to do? ubuntu@ubuntu:~$ sudo lshw -short H/W path Device Class Description system HP 2230s (NN868PA#AB2) /0 bus 3037 /0/9 memory 64KiB BIOS /0/0 processor Intel(R) Core(TM)2 Duo CPU T6570 @ 2.10GHz /0/0/1 memory 2MiB L2 cache /0/0/3 memory 32KiB L1 cache /0/0/0.1 processor Logical CPU /0/0/0.2 processor Logical CPU /0/2 memory 32KiB L1 cache /0/4 memory 2GiB System Memory /0/4/0 memory SODIMM [empty] /0/4/1 memory 2GiB SODIMM DDR2 Synchronous 800 MHz (1.2 ns) /0/100 bridge Mobile 4 Series Chipset Memory Controller Hub /0/100/2 display Mobile 4 Series Chipset Integrated Graphics Controller /0/100/2.1 display Mobile 4 Series Chipset Integrated Graphics Controller /0/100/1a bus 82801I (ICH9 Family) USB UHCI Controller #4 /0/100/1a.1 bus 82801I (ICH9 Family) USB UHCI Controller #5 /0/100/1a.2 bus 82801I (ICH9 Family) USB UHCI Controller #6 /0/100/1a.7 bus 82801I (ICH9 Family) USB2 EHCI Controller #2 /0/100/1b multimedia 82801I (ICH9 Family) HD Audio Controller /0/100/1c bridge 82801I (ICH9 Family) PCI Express Port 1 /0/100/1c.1 bridge 82801I (ICH9 Family) PCI Express Port 2 /0/100/1c.1/0 wlan1 network PRO/Wireless 5100 AGN [Shiloh] Network Connection /0/100/1c.2 bridge 82801I (ICH9 Family) PCI Express Port 3 /0/100/1c.4 bridge 82801I (ICH9 Family) PCI Express Port 5 /0/100/1c.5 bridge 82801I (ICH9 Family) PCI Express Port 6 /0/100/1c.5/0 eth1 network 88E8072 PCI-E Gigabit Ethernet Controller /0/100/1d bus 82801I (ICH9 Family) USB UHCI Controller #1 /0/100/1d.1 bus 82801I (ICH9 Family) USB UHCI Controller #2 /0/100/1d.2 bus 82801I (ICH9 Family) USB UHCI Controller #3 /0/100/1d.7 bus 82801I (ICH9 Family) USB2 EHCI Controller #1 /0/100/1e bridge 82801 Mobile PCI Bridge /0/100/1f bridge ICH9M LPC Interface Controller /0/100/1f.2 scsi0 storage 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] /0/100/1f.2/0 /dev/sda disk 500GB WDC WD5000BEVT-0 /0/100/1f.2/0/1 /dev/sda1 volume 48GiB Windows NTFS volume /0/100/1f.2/0/2 /dev/sda2 volume 416GiB Extended partition /0/100/1f.2/0/2/5 /dev/sda5 volume 97GiB HPFS/NTFS partition /0/100/1f.2/0/2/6 /dev/sda6 volume 198GiB HPFS/NTFS partition /0/100/1f.2/0/2/7 /dev/sda7 volume 27GiB Linux filesystem partition /0/100/1f.2/0/2/8 /dev/sda8 volume 93GiB Linux filesystem partition /0/100/1f.2/1 /dev/cdrom disk CDDVDW TS-L633M /0/1 scsi6 storage /0/1/0.0.0 /dev/sdb disk 15GB STORAGE DEVICE /0/1/0.0.0/0 /dev/sdb disk 15GB /0/1/0.0.0/0/1 /dev/sdb1 volume 14GiB Windows FAT volume /1 power HZ04037 ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x31263125 Device Boot Start End Blocks Id System /dev/sda1 * 63 102277727 51138832+ 7 HPFS/NTFS/exFAT /dev/sda2 102277728 976784129 437253201 f W95 Ext'd (LBA) /dev/sda5 102277791 307078127 102400168+ 7 HPFS/NTFS/exFAT /dev/sda6 307078191 724141151 208531480+ 7 HPFS/NTFS/exFAT /dev/sda7 724142080 781459455 28658688 83 Linux /dev/sda8 781461504 976771071 97654784 83 Linux Disk /dev/sdb: 15.9 GB, 15931539456 bytes 64 heads, 32 sectors/track, 15193 cylinders, total 31116288 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0009eb92 Device Boot Start End Blocks Id Systemfile:///home/ubuntu/Pictures/Screenshot%20from%202012-07-07%2010:25:40.png /dev/sdb1 * 32 31115263 15557616 c W95 FAT32 (LBA) ubuntu 12.04 installer can't find the partition in my hard disk, only find device - /dev/sda.(sorry, I'm new user, so can't send image.)

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• Building Enterprise Smartphone App &ndash; Part 1: Why Build Smart Phone Apps

  - by Tim Murphy

  This is part 1 in a series of post based on a talk I gave recently at the Chicago Information Technology Architects Group.  Feel free to leave feedback. Intro Most of us already carry smartphones. We play games on them. We keep up with what is going on with our friends and our favorite teams. We take pictures of our kids at their events. But the question is if that is all they are good for. Many companies have aspects of their business that lend themselves to being performed by mobile devices. Some of them lean toward larger device such as tablets, but many can be executed on smartphones. This and the following articles will discuss some of the possible applications of smartphone technology for businesses, the platforms that are available and the considerations you need to make when building them. I'll take a look at some specific scenarios and wrap up with a couple of capabilities that are just emerging that can be used in the future. Why Build Enterprise Smartphone Applications So what are some of the ways that you can leverage smartphone technology to gain efficiency in your business or a clients business. There are a few major areas that I have seen mobile platforms being an advantage to. Your mobile sales force is a key candidate for leveraging smartphone apps.  They can visit clients in their retail location and place orders on site. It is a more personal approach which can gain you customer loyalty.  A sales person may also gather information about the way a client does business or who their target market is. This allows them you to focus marketing information or build customized support for your customer. You may also have need to track physical inventory in a store. This is something that has historically been done with laser scanners, but with the camera capabilities in today's phones and tablets it is possible to use more general multi-purpose devices.  This can save costs on both hardware and telecommunication contracts. Delivery verification is another area that historically has been the domain of specialized devices but can now be accomplished with smartphones.  This also reduces costs because it is also used for communicating with the driver and other operations.  Add to that the navigation capability of smartphones and you can see how the return on investment increases. Executives are always on the go. They spend most of their time in meetings and yet they need access to decision making information at their finger tips. With a smartphone app they can get alerts when major sales are closed or critical accounting process are completed that may need their attention. They can also answer questions by instantly pulling up BI reports. I have often heard operations support people say that they need things like VPN and RDP from their phones. If they can also have notifications of outages or critical support requests they can be react to situations without needing to be tied to their desks. These are all valid reasons to need smartphone applications.  In the next installment I will discuss platforms and features. del.icio.us Tags: Smartphones,Enterprise Smartphone Apps,Architecture

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• cannot install firmware-b43-installer

  - by unknown

  output i get when installing the installArchives() failed: Preconfiguring packages ... Preconfiguring packages ... Preconfiguring packages ... Selecting previously deselected package menu. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 216125 files and directories currently installed.) Unpacking menu (from .../menu_2.1.44ubuntu1_i386.deb) ... Selecting previously deselected package wifi-radar. Unpacking wifi-radar (from .../wifi-radar_2.0.s05-1.2_all.deb) ... Processing triggers for man-db ... Processing triggers for install-info ... Processing triggers for doc-base ... Processing 1 added doc-base file(s)... Registering documents with scrollkeeper... Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Processing triggers for desktop-file-utils ... Processing triggers for python-gmenu ... Rebuilding /usr/share/applications/desktop.en_US.UTF8.cache... Processing triggers for python-support ... Setting up firmware-b43-installer (4.150.10.5-5) ... --2012-10-26 08:51:30-- http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2 Resolving mirror2.openwrt.org... 46.4.11.11 Connecting to mirror2.openwrt.org|46.4.11.11|:80... failed: Connection refused. dpkg: error processing firmware-b43-installer (--configure): subprocess installed post-installation script returned error exit status 4 No apport report written because MaxReports is reached already Setting up menu (2.1.44ubuntu1) ... Processing triggers for menu ... Setting up wifi-radar (2.0.s05-1.2) ... Processing triggers for menu ... Errors were encountered while processing: firmware-b43-installer Setting up firmware-b43-installer (4.150.10.5-5) ... --2012-10-26 08:51:33-- http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2 Resolving mirror2.openwrt.org... 46.4.11.11 Connecting to mirror2.openwrt.org|46.4.11.11|:80... failed: Connection refused. dpkg: error processing firmware-b43-installer (--configure): subprocess installed post-installation script returned error exit status 4 same thing occurs when i try to install any of the wireless application. All other software installs and the same error when trying to install firmware. I tried to go the link(http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2) and download the package but found no make file found in his package. please help me.

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• connecting mysql from android with jdbc

  - by manuraphy

  hai i used the following code to connect mysql in local host from android. it only displays the actions given in catch section . i dont know whether its a connection problem or not package com.test1; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class Test1Activity extends Activity { /** Called when the activity is first created. */ String str="new"; static ResultSet rs; static PreparedStatement st; static Connection con; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final TextView tv=(TextView)findViewById(R.id.user); try { Class.forName("com.mysql.jdbc.Driver"); con=DriverManager.getConnection("jdbc:mysql://10.0.2.2:8080/example","root",""); st=con.prepareStatement("select * from country where id=1"); rs=st.executeQuery(); while(rs.next()) { str=rs.getString(2); } tv.setText(str); setContentView(tv); } catch(Exception e) { tv.setText(str); } } } when executes it displays "new" in the avd. java.lang.management.ManagementFactory.getThreadMXBean, referenced from method com.mysql.jdbc.MysqlIO.appendDeadlockStatusInformation Could not find class 'javax.naming.StringRefAddr', referenced from method com.mysql.jdbc.ConnectionPropertiesImpl$ConnectionProperty.storeTo Could not find method javax.naming.Reference.get, referenced from method com.mysql.jdbc.ConnectionPropertiesImpl$ConnectionProperty.initializeFrom can anyone suggest some solution ? and thankz in advance

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• JBoss 7.1.1 + Spring 3.1 + JPA 2 (Hibernate 3.6.8) > Cannot parse beans.xml

  - by Mashrur

  Trying to deploy a JSF 2 app with Spring 3.1 + JPA 2 (Hibernte 3.6.8) into JBoss 7.1.1 AS. The app was working fine on tomcat 7. Now, I have already added and changed some configurations. Added jboss-deployment-structure.xml <jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.1"> <deployment> <exclusions> <module name="org.apache.log4j" /> <module name="javax.faces.api" slot="main"/> <module name="com.sun.jsf-impl" slot="main"/> <module name="org.hibernate"/> <module name="org.javassist" /> <module name="javaee.api" /> <module name="org.hibernate.validator" /> <module name="org.jboss.as.web" /> <module name="org.jboss.logging" /> <module name="javax.persistence.api" /> <module name="org.jboss.interceptor" /> </exclusions> </deployment> </jboss-deployment-structure> 2. Inside web.xml added these lines: <persistence-unit-ref> <persistence-unit-ref-name>persistence/persistenceUnit</persistence-unit-ref-name> <persistence-unit-name>persistenceUnit</persistence-unit-name> </persistence-unit-ref> 3. Inside applicationContext.xml, changed bean definition for entityManagerFactory by adding this property <property name="persistenceXmlLocation" value="classpath*:META-INF/persistence.xml"/> Now, do I still need to do something more than these which is obvious to you? Because, while I am trying to deploy it from eclipse indigo SR2, getting this 14:10:32,046 INFO [org.jboss.modules] JBoss Modules version 1.1.1.GA 14:10:33,054 INFO [org.jboss.msc] JBoss MSC version 1.0.2.GA 14:10:33,200 INFO [org.jboss.as] JBAS015899: JBoss AS 7.1.1.Final "Brontes" starting 14:10:36,375 INFO [org.xnio] XNIO Version 3.0.3.GA 14:10:36,384 INFO [org.jboss.as.server] JBAS015888: Creating http management service using socket-binding (management-http) 14:10:36,432 INFO [org.xnio.nio] XNIO NIO Implementation Version 3.0.3.GA 14:10:36,462 INFO [org.jboss.remoting] JBoss Remoting version 3.2.3.GA 14:10:36,587 INFO [org.jboss.as.logging] JBAS011502: Removing bootstrap log handlers 14:10:36,714 INFO [org.jboss.as.security] (ServerService Thread Pool -- 44) JBAS013101: Activating Security Subsystem 14:10:36,735 INFO [org.jboss.as.naming] (MSC service thread 1-2) JBAS011802: Starting Naming Service 14:10:37,043 INFO [org.jboss.as.mail.extension] (MSC service thread 1-6) JBAS015400: Bound mail session [java:jboss/mail/Default] 14:10:37,208 INFO [org.jboss.as.connector] (MSC service thread 1-7) JBAS010408: Starting JCA Subsystem (JBoss IronJacamar 1.0.9.Final) 14:10:37,295 INFO [org.jboss.as.security] (MSC service thread 1-7) JBAS013100: Current PicketBox version=4.0.7.Final 14:10:37,740 INFO [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010403: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3) 14:10:38,792 INFO [org.jboss.ws.common.management.AbstractServerConfig] (MSC service thread 1-3) JBoss Web Services - Stack CXF Server 4.0.2.GA 14:10:38,833 INFO [org.apache.coyote.http11.Http11Protocol] (MSC service thread 1-2) Starting Coyote HTTP/1.1 on http-localhost-127.0.0.1-8080 14:10:39,534 INFO [org.jboss.as.server.deployment.scanner] (MSC service thread 1-1) JBAS015012: Started FileSystemDeploymentService for directory F:\work\softwares\Application Servers\JBoss\jboss-as-7.1.1.Final\jboss-as-7.1.1.Final\standalone\deployments 14:10:39,618 INFO [org.jboss.as.remoting] (MSC service thread 1-3) JBAS017100: Listening on localhost/127.0.0.1:4447 14:10:39,623 INFO [org.jboss.as.remoting] (MSC service thread 1-2) JBAS017100: Listening on /127.0.0.1:9999 14:10:39,698 INFO [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) JBAS015014: Re-attempting failed deployment treasury.war 14:10:39,706 INFO [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) JBAS015003: Found com.misl.treasury.ui.war in deployment directory. To trigger deployment create a file called com.misl.treasury.ui.war.dodeploy 14:10:40,105 INFO [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-2) JBAS010400: Bound data source [java:jboss/datasources/ExampleDS] 14:10:40,399 INFO [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015876: Starting deployment of "com.misl.treasury.ui.war" 14:10:40,405 INFO [org.jboss.as.server.deployment] (MSC service thread 1-7) JBAS015876: Starting deployment of "treasury.war" 14:10:55,283 WARN [org.jboss.as.server.deployment] (MSC service thread 1-7) JBAS015893: Encountered invalid class name 'com.sun.faces.vendor.Tomcat6InjectionProvider:org.apache.catalina.util.DefaultAnnotationProcessor' for service type 'com.sun.faces.spi.injectionprovider' 14:10:55,289 WARN [org.jboss.as.server.deployment] (MSC service thread 1-7) JBAS015893: Encountered invalid class name 'com.sun.faces.vendor.Jetty6InjectionProvider:org.mortbay.jetty.plus.annotation.InjectionCollection' for service type 'com.sun.faces.spi.injectionprovider' 14:10:55,428 INFO [org.jboss.as.jpa] (MSC service thread 1-7) JBAS011401: Read persistence.xml for persistenceUnit 14:10:55,843 WARN [org.jboss.as.server.deployment] (MSC service thread 1-4) JBAS015893: Encountered invalid class name 'com.sun.faces.vendor.Tomcat6InjectionProvider:org.apache.catalina.util.DefaultAnnotationProcessor' for service type 'com.sun.faces.spi.injectionprovider' 14:10:55,849 WARN [org.jboss.as.server.deployment] (MSC service thread 1-4) JBAS015893: Encountered invalid class name 'com.sun.faces.vendor.Jetty6InjectionProvider:org.mortbay.jetty.plus.annotation.InjectionCollection' for service type 'com.sun.faces.spi.injectionprovider' 14:10:56,010 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC00001: Failed to start service jboss.deployment.unit."com.misl.treasury.ui.war".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."com.misl.treasury.ui.war".POST_MODULE: Failed to process phase POST_MODULE of deployment "com.misl.treasury.ui.war" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_23] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_23] at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_23] Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletOutputStream at java.lang.Class.getDeclaredConstructors0(Native Method) [rt.jar:1.6.0_23] at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) [rt.jar:1.6.0_23] at java.lang.Class.getConstructor0(Class.java:2699) [rt.jar:1.6.0_23] at java.lang.Class.getConstructor(Class.java:1657) [rt.jar:1.6.0_23] at org.jboss.as.web.deployment.jsf.JsfManagedBeanProcessor.deploy(JsfManagedBeanProcessor.java:108) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] ... 5 more Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletOutputStream from [Module "deployment.com.misl.treasury.ui.war:main" from Service Module Loader] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120) ... 11 more 14:10:56,628 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC00001: Failed to start service jboss.deployment.unit."treasury.war".PARSE: org.jboss.msc.service.StartException in service jboss.deployment.unit."treasury.war".PARSE: Failed to process phase PARSE of deployment "treasury.war" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_23] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_23] at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_23] Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: SAXException parsing vfs:/F:/work/softwares/Application Servers/JBoss/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final/bin/content/treasury.war/WEB-INF/beans.xml at org.jboss.as.weld.deployment.BeansXmlParser.parse(BeansXmlParser.java:100) at org.jboss.as.weld.deployment.processors.BeansXmlProcessor.parseBeansXml(BeansXmlProcessor.java:133) at org.jboss.as.weld.deployment.processors.BeansXmlProcessor.deploy(BeansXmlProcessor.java:97) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] ... 5 more Caused by: org.xml.sax.SAXParseException: Premature end of file. at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:196) at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:175) at org.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:394) at org.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:322) at org.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:281) at org.apache.xerces.impl.XMLScanner.reportFatalError(XMLScanner.java:1459) at org.apache.xerces.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(XMLDocumentScannerImpl.java:903) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324) at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:845) at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:768) at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108) at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1196) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:555) at org.apache.xerces.jaxp.SAXParserImpl.parse(SAXParserImpl.java:289) at org.jboss.as.weld.deployment.BeansXmlParser.parse(BeansXmlParser.java:94) ... 8 more 14:10:56,670 INFO [org.jboss.as] (MSC service thread 1-1) JBAS015951: Admin console listening on http://127.0.0.1:9990 14:10:56,672 ERROR [org.jboss.as] (MSC service thread 1-1) JBAS015875: JBoss AS 7.1.1.Final "Brontes" started (with errors) in 25527ms - Started 143 of 222 services (2 services failed or missing dependencies, 76 services are passive or on-demand) 14:10:56,671 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS015871: Deploy of deployment "treasury.war" was rolled back with no failure message 14:10:56,679 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS015870: Deploy of deployment "com.misl.treasury.ui.war" was rolled back with failure message {"JBAS014671: Failed services" => {"jboss.deployment.unit.\"com.misl.treasury.ui.war\".POST_MODULE" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"com.misl.treasury.ui.war\".POST_MODULE: Failed to process phase POST_MODULE of deployment \"com.misl.treasury.ui.war\""}} 14:10:56,851 INFO [org.jboss.as.server.deployment] (MSC service thread 1-8) JBAS015877: Stopped deployment com.misl.treasury.ui.war in 172ms 14:10:57,068 INFO [org.jboss.as.server.deployment] (MSC service thread 1-7) JBAS015877: Stopped deployment treasury.war in 395ms 14:10:57,070 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) JBAS014774: Service status report JBAS014777: Services which failed to start: service jboss.deployment.unit."treasury.war".PARSE: org.jboss.msc.service.StartException in service jboss.deployment.unit."treasury.war".PARSE: Failed to process phase PARSE of deployment "treasury.war" service jboss.deployment.unit."com.misl.treasury.ui.war".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."com.misl.treasury.ui.war".POST_MODULE: Failed to process phase POST_MODULE of deployment "com.misl.treasury.ui.war" 14:10:57,079 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) {"JBAS014653: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => {"JBAS014671: Failed services" => {"jboss.deployment.unit.\"com.misl.treasury.ui.war\".POST_MODULE" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"com.misl.treasury.ui.war\".POST_MODULE: Failed to process phase POST_MODULE of deployment \"com.misl.treasury.ui.war\""}}}} 14:10:57,087 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) JBAS014654: Composite operation was rolled back And by the way, JBOSS_HOME\modules\javax\api\main folder only contains a module.xml, no jars. Tried to add jboss-servlet-api_3.0_spec-1.0.0.Final.jar file in that directory and updated module.xml too. But, it shows a very long trail of stacktraces :) I have even removed beans.xml. No change. I have never tried JBoss before. Any help would be highly appreciated.

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• Solr DataImportHandler configuration

  - by talo

  I want to get data from mysql database with the help of DataImportHandler so i can create indexes. Now I've configured my Solr instance so that it works on Tomcat (the example admin page), but if I try to change the sorlconfig.xml file i'll get the error message. I'm working with Solr 3.6 So my configuration is: In solrconfig.xml i added: <dataDir>${solr.data.dir:/usr/share/tomcat7/solr2}</dataDir> to specify my working directory and then <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler"> <lst name="defaults"> <str name="config">/usr/share/tomcat7/solr2/conf/data-config.xml</str> </lst> </requestHandler> to specify new request handler. Theese two are my lib directives for DIH. Do i need to change them? <lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" /> <lib dir="../../contrib/dataimporthandler/lib/" regex=".*\.jar" /> I also created data-config.xml file and added following: <?xml version="1.0" encoding="UTF-8"?> <dataConfig> <dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/ethicsweb_experts" user="root" password=""/> <document> <entity name="experts" datasource="mysql" pk="mainid" query="SELECT experts.mainid as mainid FROM experts WHERE validRec = 'y'"> <field column="mainid" name="mainid"/> <field column="validRec" name="validRec"/> </entity> </document> I've coppied following jars to tomcat/lib folder (DIH jar files and mysql JDBC connector jar file) apache-solr-dataimporthandler-3.6.0.jar apache-solr-dataimporthandler-extras-3.6.0.jar mysql-connector-java-5.1.20-bin.jar Also in the schema.xml file i added folowing fields: <field name="mainid" type="int" indexed="true" stored="true" /> <field name="validRec" type="string" indexed="true" stored="true" /> <field name="recSource" type="string" indexed="true" stored="true" /> <uniqueKey>mainid</uniqueKey> But now when i try to acces: http://localhost:8080/solr2/ I get following output: HTTP Status 500 - Severe errors in solr configuration. Check your log files for more detailed information on what may be wrong. If you want solr to continue after configuration errors, change: false in solr.xml ------------------------------------------------------------- org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) ------------------------------------------------------------- java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1698) at java.lang.ClassLoader.loadClass(ClassLoader.java:410) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:419) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:455) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:159) at org.apache.solr.core.SolrCore.(SolrCore.java:563) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219) at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 47 more My log entries show me that: SEVERE: java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1698) at java.lang.ClassLoader.loadClass(ClassLoader.java:410) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:419) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:455) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:159) at org.apache.solr.core.SolrCore.(SolrCore.java:563) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219) at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 47 more Jun 15, 2012 4:07:50 PM org.apache.solr.servlet.SolrDispatchFilter init SEVERE: Could not start Solr. Check solr/home property and the logs org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Jun 15, 2012 4:07:50 PM org.apache.solr.common.SolrException log SEVERE: org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) So now I wonder where did i screw up the configuration for the DataImportHandler. Do i need to specify more jar files? Did i put jar files in the correct directory? Any help would be greatly appreciated.

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