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• Take Advantage of Oracle's Ongoing Assurance Effort!

  - by eric.maurice

  Hi, this is Eric Maurice again! A few years ago, I posted a blog entry, which discussed the psychology of patching. The point of this blog entry was that a natural tendency existed for systems and database administrators to be reluctant to apply patches, even security patches, because of the fear of "breaking" the system. Unfortunately, this belief in the principle "if it ain't broke, don't fix it!" creates significant risks for organizations. Running systems without applying the proper security patches can greatly compromise the security posture of the organization because the security controls available in the affected system may be compromised as a result of the existence of the unfixed vulnerabilities. As a result, Oracle continues to strongly recommend that customers apply all security fixes as soon as possible. Most recently, I have had a number of conversations with customers who questioned the need to upgrade their highly stable but otherwise unsupported Oracle systems. These customers wanted to know more about the kind of security risks they were exposed to, by running obsolete versions of Oracle software. As per Oracle Support Policies, Critical Patch Updates are produced for currently supported products. In other words, Critical Patch Updates are not created by Oracle for product versions that are no longer covered under the Premier Support or Extended Support phases of the Lifetime Support Policy. One statement used in each Critical Patch Update Advisory is particularly important: "We recommend that customers upgrade to a supported version of Oracle products in order to obtain patches. Unsupported products, releases and versions are not tested for the presence of vulnerabilities addressed by this Critical Patch Update. However, it is likely that earlier versions of affected releases are also affected by these vulnerabilities." The purpose of this warning is to inform Oracle customers that a number of the vulnerabilities fixed in each Critical Patch Update may affect older versions of a specific product line. In other words, each Critical Patch Update provides a number of fixes for currently supported versions of a given product line (this information is listed for each bug in the Risk Matrices of the Critical Patch Update Advisory), but the unsupported versions in the same product line, while they may be affected by the vulnerabilities, will not receive the fixes, and are therefore vulnerable to attacks. The risk assumed by organizations wishing to remain on unsupported versions is amplified by the behavior of malicious hackers, who typically will attempt to, and sometimes succeed in, reverse-engineering the content of vendors' security fixes. As a result, it is not uncommon for exploits to be published soon after Oracle discloses vulnerabilities with the release of a Critical Patch Update or Security Alert. Let's consider now the nature of the vulnerabilities that may exist in obsolete versions of Oracle software. A number of severe vulnerabilities have been fixed by Oracle over the years. While Oracle does not test unsupported products, releases and versions for the presence of vulnerabilities addressed by each Critical Patch Update, it should be assumed that a number of the vulnerabilities fixed with the Critical Patch Update program do exist in unsupported versions (regardless of the product considered). The most severe vulnerabilities fixed in past Critical Patch Updates may result in full compromise of the targeted systems, down to the OS level, by remote and unauthenticated users (these vulnerabilities receive a CVSS Base Score of 10.0) or almost as critically, may result in the compromise of the affected systems (without compromising the underlying OS) by a remote and unauthenticated users (these vulnerabilities receive a CVSS Base Score of 7.5). Such vulnerabilities may result in complete takeover of the targeted machine (for the CVSS 10.0), or may result in allowing the attacker the ability to create a denial of service against the affected system or even hijacking or stealing all the data hosted by the compromised system (for the CVSS 7.5). The bottom line is that organizations should assume the worst case: that the most critical vulnerabilities are present in their unsupported version; therefore, it is Oracle's recommendation that all organizations move to supported systems and apply security patches in a timely fashion. Organizations that currently run supported versions but may be late in their security patch release level can quickly catch up because most Critical Patch Updates are cumulative. With a few exceptions noted in Oracle's Critical Patch Update Advisory, the application of the most recent Critical Patch Update will bring these products to current security patch level and provide the organization with the best possible security posture for their patch level. Furthermore, organizations are encouraged to upgrade to most recent versions as this will greatly improve their security posture. At Oracle, our security fixing policies state that security fixes are produced for the main code line first, and as a result, our products benefit from the mistakes made in previous version(s). Our ongoing assurance effort ensures that we work diligently to fix the vulnerabilities we find, and aim at constantly improving the security posture our products provide by default. Patch sets include numerous in-depth fixes in addition to those delivered through the Critical Patch Update and, in certain instances, important security fixes require major architectural changes that can only be included in new product releases (and cannot be backported through the Critical Patch Update program). For More Information: • Mary Ann Davidson is giving a webcast interview on Oracle Software Security Assurance on February 24th. The registration link for attending this webcast is located at http://event.on24.com/r.htm?e=280304&s=1&k=6A7152F62313CA09F77EBCEEA9B6294F&partnerref=EricMblog • A blog entry discussing Oracle's practices for ensuring the quality of Critical patch Updates can be found at http://blogs.oracle.com/security/2009/07/ensuring_critical_patch_update_quality.html • The blog entry "To patch or not to patch" is located at http://blogs.oracle.com/security/2008/01/to_patch_or_not_to_patch.html • Oracle's Support Policies are located at http://www.oracle.com/us/support/policies/index.html • The Critical Patch Update & Security Alert page is located at http://www.oracle.com/technetwork/topics/security/alerts-086861.html

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• Explaining Explain Plan Notes for Auto DOP

  - by jean-pierre.dijcks

  I've recently gotten some questions around "why do I not see a parallel plan" while Auto DOP is on (I think)...? It is probably worthwhile to quickly go over some of the ways to find out what Auto DOP was thinking. In general, there is no need to go tracing sessions and look under the hood. The thing to start with is to do an explain plan on your statement and to look at the parameter settings on the system. Parameter Settings to Look At First and foremost, make sure that parallel_degree_policy = AUTO. If you have that parameter set to LIMITED you will not have queuing and we will only do the auto magic if your objects are set to default parallel (so no degree specified). Next you want to look at the value of parallel_degree_limit. It is typically set to CPU, which in default settings equates to the Default DOP of the system. If you are testing Auto DOP itself and the impact it has on performance you may want to leave it at this CPU setting. If you are running concurrent statements you may want to give this some more thoughts. See here for more information. In general, do stick with either CPU or with a specific number. For now avoid the IO setting as I've seen some mixed results with that... In 11.2.0.2 you should also check that IO Calibrate has been run. Best to simply do a: SQL> select * from V$IO_CALIBRATION_STATUS; STATUS        CALIBRATION_TIME ------------- ---------------------------------------------------------------- READY         04-JAN-11 10.04.13.104 AM You should see that your IO Calibrate is READY and therefore Auto DOP is ready. In any case, if you did not run the IO Calibrate step you will get the following note in the explain plan: Note -----    - automatic DOP: skipped because of IO calibrate statistics are missing One more note on calibrate_io, if you do not have asynchronous IO enabled you will see:  ERROR at line 1: ORA-56708: Could not find any datafiles with asynchronous i/o capability ORA-06512: at "SYS.DBMS_RMIN", line 463 ORA-06512: at "SYS.DBMS_RESOURCE_MANAGER", line 1296 ORA-06512: at line 7 While this is changed in some fixes to the calibrate procedure, you should really consider switching asynchronous IO on for your data warehouse. Explain Plan Explanation To see the notes that are shown and explained here (and the above little snippet ) you can use a simple explain plan mechanism. There should  be no need to add +parallel etc. explain plan for <statement> SELECT PLAN_TABLE_OUTPUT FROM TABLE(DBMS_XPLAN.DISPLAY()); Auto DOP The note structure displaying why Auto DOP did not work (with the exception noted above on IO Calibrate) is like this: Automatic degree of parallelism is disabled: <reason> These are the reason codes: Parameter -  parallel_degree_policy = manual which will not allow Auto DOP to kick in  Hint - One of the following hints are used NOPARALLEL, PARALLEL(1), PARALLEL(MANUAL) Outline - A SQL outline of an older version (before 11.2) is used SQL property restriction - The statement type does not allow for parallel processing Rule-based mode - Instead of the Cost Based Optimizer the system is using the RBO Recursive SQL statement - The statement type does not allow for parallel processing pq disabled/pdml disabled/pddl disabled - For some reason (alter session?) parallelism is disabled Limited mode but no parallel objects referenced - your parallel_degree_policy = LIMITED and no objects in the statement are decorated with the default PARALLEL degree. In most cases all objects have a specific degree in which case Auto DOP will honor that degree. Parallel Degree Limited When Auto DOP does it works you may see the cap you imposed with parallel_degree_limit showing up in the note section of the explain plan: Note -----    - automatic DOP: Computed Degree of Parallelism is 16 because of degree limit This is an obvious indication that your are being capped for this statement. There is one quite interesting one that happens when you are being capped at DOP = 1. First of you get a serial plan and the note changes slightly in that it does not indicate it is being capped (we hope to update the note at some point in time to be more specific). It right now looks like this: Note -----    - automatic DOP: Computed Degree of Parallelism is 1 Dynamic Sampling With 11.2.0.2 you will start seeing another interesting change in parallel plans, and since we are talking about the note section here, I figured we throw this in for good measure. If we deem the parallel (!) statement complex enough, we will enact dynamic sampling on your query. This happens as long as you did not change the default for dynamic sampling on the system. The note looks like this: Note ----- - dynamic sampling used for this statement (level=5)

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• Best Practices - Dynamic Reconfiguration

  - by jsavit

  This post is one of a series of "best practices" notes for Oracle VM Server for SPARC (formerly named Logical Domains) Overview of dynamic Reconfiguration Oracle VM Server for SPARC supports Dynamic Reconfiguration (DR), making it possible to add or remove resources to or from a domain (virtual machine) while it is running. This is extremely useful because resources can be shifted to or from virtual machines in response to load conditions without having to reboot or interrupt running applications. For example, if an application requires more CPU capacity, you can add CPUs to improve performance, and remove them when they are no longer needed. You can use even use Dynamic Resource Management (DRM) policies that automatically add and remove CPUs to domains based on load. How it works (in broad general terms) Dynamic Reconfiguration is done in coordination with Solaris, which recognises a hypervisor request to change its virtual machine configuration and responds appropriately. In essence, Solaris receives a message saying "you now have 16 more CPUs numbered 16 to 31" or "8GB more RAM starting at address X" or "here's a new network or disk device - have fun with it". These actions take very little time. Solaris then can start using the new resource. In the case of added CPUs, that means dispatching processes and potentially binding interrupts to the new CPUs. For memory, Solaris adds the new memory pages to its "free" list and starts using them. Comparable actions occur with network and disk devices: they are recognised by Solaris and then used. Removing is the reverse process: after receiving the DR message to free specific CPUs, Solaris unbinds interrupts assigned to the CPUs and stops dispatching process threads. That takes very little time. primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 1.0% 6d 22h 29m ldom1 active -n---- 5000 16 8G 0.9% 6h 59m primary # ldm set-core 5 ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 0.2% 6d 22h 29m ldom1 active -n---- 5000 40 8G 0.1% 6h 59m primary # ldm set-core 2 ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 1.0% 6d 22h 29m ldom1 active -n---- 5000 16 8G 0.9% 6h 59m Memory pages are vacated by copying their contents to other memory locations and wiping them clean. Solaris may have to swap memory contents to disk if the remaining RAM isn't enough to hold all the contents. For this reason, deallocating memory can take longer on a loaded system. Even on a lightly loaded system it took several 7 or 8 seconds to switch the domain below between 8GB and 24GB of RAM. primary # ldm set-mem 24g ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 0.1% 6d 22h 36m ldom1 active -n---- 5000 16 24G 0.2% 7h 6m primary # ldm set-mem 8g ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 0.7% 6d 22h 37m ldom1 active -n---- 5000 16 8G 0.3% 7h 7m What if the device is in use? (this is the anecdote that inspired this blog post) If CPU or memory is being removed, releasing it pretty straightforward, using the method described above. The resources are released, and Solaris continues with less capacity. It's not as simple with a network or I/O device: you don't want to yank a device out from underneath an application that might be using it. In the following example, I've added a virtual network device to ldom1 and want to take it away, even though it's been plumbed. primary # ldm rm-vnet vnet19 ldom1 Guest LDom returned the following reason for failing the operation: Resource Information ---------------------------------------------------------- ----------------------- /devices/virtual-devices@100/channel-devices@200/network@1 Network interface net1 VIO operation failed because device is being used in LDom ldom1 Failed to remove VNET instance That's what I call a helpful error message - telling me exactly what was wrong. In this case the problem is easily solved. I know this NIC is seen in the guest as net1 so: ldom1 # ifconfig net1 down unplumb Now I can dispose of it, and even the virtual switch I had created for it: primary # ldm rm-vnet vnet19 ldom1 primary # ldm rm-vsw primary-vsw9 If I had to take away the device disruptively, I could have used ldm rm-vnet -f but that could disrupt whoever was using it. It's better if that can be avoided. Summary Oracle VM Server for SPARC provides dynamic reconfiguration, which lets you modify a guest domain's CPU, memory and I/O configuration on the fly without reboot. You can add and remove resources as needed, and even automate this for CPUs by setting up resource policies. Taking things away can be more complicated than giving, especially for devices like disks and networks that may contain application and system state or be involved in a transaction. LDoms and Solaris cooperative work together to coordinate resource allocation and de-allocation in a safe and effective way. For best practices, use dynamic reconfiguration to make the best use of your system's resources.

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• Are IE9 really good ?

  - by anirudha

  IE9 started a campaign for kill IE6 from the core because they know that IE6 is a big trouble or  problem for them for promote 9 version of IE. so they started a campaign for killing IE6. next time they kill IE 7 , 8,9 whenever they found this old version have a big problem for them to promote next version of IE.   Why they not make a update system who automatically update the browser and tell user to restart and update goes installed in the user system. well IE9 should learn from all other that they have very well design auto-update system who never give user in trouble that your browser goes old. Chrome and Firefox both update themselves and say user restart to enjoy another good version. in IE6 a big problem is that updates. no one sure that they installed new version of IE6 without any hassles and update goes install without any problem because they really know or care about “you need this to install this and this for this” so they thing “why I update IE whenever I am unsure that my browser goes update and I have no problem again” so they do nothing because their work done with no problem because common person used high profile application who work even in IE6. so they do nothing.    IE6 countdown website have designed a banner for warn or force user to upgrade to next version of IE. well there is no good reason for put the banner on website some of reason are:-   Windows 7 comes with pre-installed IE8 and Vista comes with upgrade version them IE6 so that is sure that you force a user who have Windows XP [luna] and if they want to upgrade IE then they can get IE8 not version 9 because IE9 is design for Windows 7 or Vista Service pack 2. so What is the use of update when user still have a outdate version too because IE8 is old version and not have any capability of HTML5 so forcing user by using the banner have no sense. I am not know why they all listed on website put the banner on their own website. it’s good that you offer user what they want instead of giving them a outdate version of IE again. My means to give a user list of browser they can try to enhance their browser experience instead of only IE.   IE9 build upon WPF and they spent more time on using WPF in IE instead of making user experience browser.  many thing is designed wrongly in IE first thing is tabs. the tabs in chrome are bigger and easily to move and same in Firefox even not have smooth tabbing. IE have same tabbing as chrome have but leak a point that it’s too small. if you really  want to move then sometime they create a problem that they going elsewhere from the current instance of IE.   Chrome have a big buttons, tabs and menu to enhance browser experience and Firefox have a good feature that you can make them bigger or small. you can put the icon for add-ons on the toolbar for easily use but IE have no relation with customization so we never can thinking about that.   When chrome provide lot’s of extensions and a  webstore for browser application and same feature in Firefox can be seen then there is no plugin in IE. really you can see their IE addons Website where no plugin listed for web development. even in the category or tag. as a response from many blog there is new for developer that new version of IE9 developer tool. well IE9 have three new tabs a blogger tell on their blog. when I trying them I found many thing but I still unable to edit the Css from the HTML tab and no plugin I found I can get to enhance IE9 web development. something more other provide never IE9 give me like personas , customization , browser extension or any other they used to tell a small thing customization  .   IE9 still have some problem with JavaScript that when I use Firefox and chrome and logout in both then my cookie is deleted but in IE it’s not done. it’s show me that IE9 still have different from other not for good thing even some bad thing too. When I trying to read a article that is written in Hindi using Unicode font I found that they show many thing misspelled. there is three Sha in Hindi but they all goes wrong in IE. the misprint thing is not that the writing  for the articles goes wrong. it’s problem or browser to rendering a font. the Firefox and chrome not give me this problem even opera render the font in italic style by decrease the font-size but all those work perfect.   in Pwn2Own the apple’s safari  and IE9 both are hacked. this is a awesome news for whose who thing that  open-source is lose in  Security and close-source is highly-secured software. well this is not a good parameter for talking about software. it’s should depend how much application tested and used. because more testing and more use of application make them better.   I  appreciate IE to making their new version 9 and good luck for them. there is a another matter that I personally found nothing on them.

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• Mounting ddrescue image after recovery (in over my head)

  - by BorgDomination

  I'm having problems mounting the recovery image. I've tried to mount the image multiple ways. quark@DS9 ~ $ sudo mount -t ext4 /media/jump1/1recover/sdb1.img /mnt mount: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so quark@DS9 ~ $ sudo mount -r -o loop /media/jump1/1recover/sdb1.img recover mount: you must specify the filesystem type quark@DS9 ~ $ sudo mount /media/jump1/1recover/sdb1.img mnt mount: you must specify the filesystem type It doesn't even give me detailed information on the file I just made, nautilus says it's 160gb. quark@DS9 ~ $ file /media/jump1/1recover/sdb1.img /media/jump1/1recover/sdb1.img: data quark@DS9 ~ $ mmls /media/jump1/1recover/sdb1.img Cannot determine partition type I'm not sure what I'm doing wrong or if I started this process incorrectly from the beginning. I've outlined what I've done so far below. I'm clueless, I'd appreciate if someone had some input for me. What I have done from the beginning My laptop has two hard drives. One has the dual boot Win7 / Linux Mint system files. Secondary one contained my /home folder. The laptop was jarred and the /home disk was broken. I tried a LiveCD recovery, it failed. Wouldn't even load a Live session with the disk installed. So I turned to ddrescue. quark@DS9 ~ $ sudo fdisk -l Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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: 0x0009fc18 Device Boot Start End Blocks Id System /dev/sda1 * 2048 112642047 56320000 7 HPFS/NTFS/exFAT /dev/sda2 138033152 312580095 87273472 83 Linux /dev/sda3 112644094 138033151 12694529 5 Extended /dev/sda5 112644096 132173823 9764864 83 Linux /dev/sda6 132175872 138033151 2928640 82 Linux swap / Solaris Partition table entries are not in disk order Disk /dev/sdb: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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: 0x0002a8ea Device Boot Start End Blocks Id System /dev/sdb1 * 63 312576704 156288321 83 Linux Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0xed6d054b Device Boot Start End Blocks Id System /dev/sdc1 63 1953520064 976760001 7 HPFS/NTFS/exFAT sda - 160g internal, holds all system files and all computer functions. sdb - 160g internal, BROKEN, contains about 140g of data I'd like to recover. sdc - 1T external, contains recovery image. Only place that has space to do all this. From this site, https://apps.education.ucsb.edu/wiki/Ddrescue I used this script to create an image of the broken hard drive. I changed the destination to the external USB drive. #!/bin/sh prt=sdb1 src=/dev/$prt dst=/media/jump1/1recover/$prt.img log=$dst.log sudo time ddrescue --no-split $src $dst $log sudo time ddrescue --direct --max-retries=3 $src $dst $log sudo time ddrescue --direct --retrim --max-retries=3 $src $dst $log Everything looked like it came off without a hitch: quark@DS9 ~ $ sudo bash recover1 Press Ctrl-C to interrupt Initial status (read from logfile) rescued: 0 B, errsize: 0 B, errors: 0 Current status rescued: 160039 MB, errsize: 4096 B, current rate: 35588 B/s ipos: 3584 B, errors: 1, average rate: 22859 kB/s opos: 3584 B, time from last successful read: 0 s Finished 12.78user 1060.42system 1:56:41elapsed 15%CPU (0avgtext+0avgdata 4944maxresident)k 312580958inputs+0outputs (1major+601minor)pagefaults 0swaps Press Ctrl-C to interrupt Initial status (read from logfile) rescued: 160039 MB, errsize: 4096 B, errors: 1 Current status rescued: 160039 MB, errsize: 1024 B, current rate: 0 B/s ipos: 1536 B, errors: 1, average rate: 13 B/s opos: 1536 B, time from last successful read: 1.3 m Finished 0.00user 0.00system 3:43.95elapsed 0%CPU (0avgtext+0avgdata 4944maxresident)k 238inputs+0outputs (3major+374minor)pagefaults 0swaps Press Ctrl-C to interrupt Initial status (read from logfile) rescued: 160039 MB, errsize: 1024 B, errors: 1 Current status rescued: 160039 MB, errsize: 1024 B, current rate: 0 B/s ipos: 1536 B, errors: 1, average rate: 0 B/s opos: 1536 B, time from last successful read: 3.7 m Finished 0.00user 0.00system 3:43.56elapsed 0%CPU (0avgtext+0avgdata 4944maxresident)k 8inputs+0outputs (0major+376minor)pagefaults 0swaps It looks like, from where I'm standing it worked perfectly. Here's the log: # Rescue Logfile. Created by GNU ddrescue version 1.14 # Command line: ddrescue --direct --retrim --max-retries=3 /dev/sdb1 /media/jump1/1recover/sdb1.img /media/jump1/1recover/sdb1.img.log # current_pos current_status 0x00000600 + # pos size status 0x00000000 0x00000400 + 0x00000400 0x00000400 - 0x00000800 0x254314FC00 + I'm not sure how to proceed. Does this mean all of my data is lost???????? Appreciate ANY input!

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• Windows Azure Evolution &ndash; Caching (Preview)

  - by Shaun

  Caching is a popular topic when we are building a high performance and high scalable system not only on top of the cloud platform but the on-premise environment as well. On March 2011 the Windows Azure AppFabric Caching had been production launched. It provides an in-memory, distributed caching service over the cloud. And now, in this June 2012 update, the cache team announce a grand new caching solution on Windows Azure, which is called Windows Azure Caching (Preview). And the original Windows Azure AppFabric Caching was renamed to Windows Azure Shared Caching.   What’s Caching (Preview) If you had been using the Shared Caching you should know that it is constructed by a bunch of cache servers. And when you want to use you should firstly create a cache account from the developer portal and specify the size you want to use, which means how much memory you can use to store your data that wanted to be cached. Then you can add, get and remove them through your code through the cache URL. The Shared Caching is a multi-tenancy system which host all cached items across all users. So you don’t know which server your data was located. This caching mode works well and can take most of the cases. But it has some problems. The first one is the performance. Since the Shared Caching is a multi-tenancy system, which means all cache operations should go through the Shared Caching gateway and then routed to the server which have the data your are looking for. Even though there are some caches in the Shared Caching system it also takes time from your cloud services to the cache service. Secondary, the Shared Caching service works as a block box to the developer. The only thing we know is my cache endpoint, and that’s all. Someone may satisfied since they don’t want to care about anything underlying. But if you need to know more and want more control that’s impossible in the Shared Caching. The last problem would be the price and cost-efficiency. You pay the bill based on how much cache you requested per month. But when we host a web role or worker role, it seldom consumes all of the memory and CPU in the virtual machine (service instance). If using Shared Caching we have to pay for the cache service while waste of some of our memory and CPU locally. Since the issues above Microsoft offered a new caching mode over to us, which is the Caching (Preview). Instead of having a separated cache service, the Caching (Preview) leverage the memory and CPU in our cloud services (web role and worker role) as the cache clusters. Hence the Caching (Preview) runs on the virtual machines which hosted or near our cloud applications. Without any gateway and routing, since it located in the same data center and same racks, it provides really high performance than the Shared Caching. The Caching (Preview) works side-by-side to our application, initialized and worked as a Windows Service running in the virtual machines invoked by the startup tasks from our roles, we could get more information and control to them. And since the Caching (Preview) utilizes the memory and CPU from our existing cloud services, so it’s free. What we need to pay is the original computing price. And the resource on each machines could be used more efficiently.   Enable Caching (Preview) It’s very simple to enable the Caching (Preview) in a cloud service. Let’s create a new windows azure cloud project from Visual Studio and added an ASP.NET Web Role. Then open the role setting and select the Caching page. This is where we enable and configure the Caching (Preview) on a role. To enable the Caching (Preview) just open the “Enable Caching (Preview Release)” check box. And then we need to specify which mode of the caching clusters we want to use. There are two kinds of caching mode, co-located and dedicate. The co-located mode means we use the memory in the instances we run our cloud services (web role or worker role). By using this mode we must specify how many percentage of the memory will be used as the cache. The default value is 30%. So make sure it will not affect the role business execution. The dedicate mode will use all memory in the virtual machine as the cache. In fact it will reserve some for operation system, azure hosting etc.. But it will try to use as much as the available memory to be the cache. As you can see, the Caching (Preview) was defined based on roles, which means all instances of this role will apply the same setting and play as a whole cache pool, and you can consume it by specifying the name of the role, which I will demonstrate later. And in a windows azure project we can have more than one role have the Caching (Preview) enabled. Then we will have more caches. For example, let’s say I have a web role and worker role. The web role I specified 30% co-located caching and the worker role I specified dedicated caching. If I have 3 instances of my web role and 2 instances of my worker role, then I will have two caches. As the figure above, cache 1 was contributed by three web role instances while cache 2 was contributed by 2 worker role instances. Then we can add items into cache 1 and retrieve it from web role code and worker role code. But the items stored in cache 1 cannot be retrieved from cache 2 since they are isolated. Back to our Visual Studio we specify 30% of co-located cache and use the local storage emulator to store the cache cluster runtime status. Then at the bottom we can specify the named caches. Now we just use the default one. Now we had enabled the Caching (Preview) in our web role settings. Next, let’s have a look on how to consume our cache.   Consume Caching (Preview) The Caching (Preview) can only be consumed by the roles in the same cloud services. As I mentioned earlier, a cache contributed by web role can be connected from a worker role if they are in the same cloud service. But you cannot consume a Caching (Preview) from other cloud services. This is different from the Shared Caching. The Shared Caching is opened to all services if it has the connection URL and authentication token. To consume the Caching (Preview) we need to add some references into our project as well as some configuration in the Web.config. NuGet makes our life easy. Right click on our web role project and select “Manage NuGet packages”, and then search the package named “WindowsAzure.Caching”. In the package list install the “Windows Azure Caching Preview”. It will download all necessary references from the NuGet repository and update our Web.config as well. Open the Web.config of our web role and find the “dataCacheClients” node. Under this node we can specify the cache clients we are going to use. For each cache client it will use the role name to identity and find the cache. Since we only have this web role with the Caching (Preview) enabled so I pasted the current role name in the configuration. Then, in the default page I will add some code to show how to use the cache. I will have a textbox on the page where user can input his or her name, then press a button to generate the email address for him/her. And in backend code I will check if this name had been added in cache. If yes I will return the email back immediately. Otherwise, I will sleep the tread for 2 seconds to simulate the latency, then add it into cache and return back to the page. 1: protected void btnGenerate_Click(object sender, EventArgs e) 2: { 3: // check if name is specified 4: var name = txtName.Text; 5: if (string.IsNullOrWhiteSpace(name)) 6: { 7: lblResult.Text = "Error. Please specify name."; 8: return; 9: } 10:  11: bool cached; 12: var sw = new Stopwatch(); 13: sw.Start(); 14:  15: // create the cache factory and cache 16: var factory = new DataCacheFactory(); 17: var cache = factory.GetDefaultCache(); 18:  19: // check if the name specified is in cache 20: var email = cache.Get(name) as string; 21: if (email != null) 22: { 23: cached = true; 24: sw.Stop(); 25: } 26: else 27: { 28: cached = false; 29: // simulate the letancy 30: Thread.Sleep(2000); 31: email = string.Format("{0}@igt.com", name); 32: // add to cache 33: cache.Add(name, email); 34: } 35:  36: sw.Stop(); 37: lblResult.Text = string.Format( 38: "Cached = {0}. Duration: {1}s. {2} => {3}", 39: cached, sw.Elapsed.TotalSeconds.ToString("0.00"), name, email); 40: } The Caching (Preview) can be used on the local emulator so we just F5. The first time I entered my name it will take about 2 seconds to get the email back to me since it was not in the cache. But if we re-enter my name it will be back at once from the cache. Since the Caching (Preview) is distributed across all instances of the role, so we can scaling-out it by scaling-out our web role. Just use 2 instances and tweak some code to show the current instance ID in the page, and have another try. Then we can see the cache can be retrieved even though it was added by another instance.   Consume Caching (Preview) Across Roles As I mentioned, the Caching (Preview) can be consumed by all other roles within the same cloud service. For example, let’s add another web role in our cloud solution and add the same code in its default page. In the Web.config we add the cache client to one enabled in the last role, by specifying its role name here. Then we start the solution locally and go to web role 1, specify the name and let it generate the email to us. Since there’s no cache for this name so it will take about 2 seconds but will save the email into cache. And then we go to web role 2 and specify the same name. Then you can see it retrieve the email saved by the web role 1 and returned back very quickly. Finally then we can upload our application to Windows Azure and test again. Make sure you had changed the cache cluster status storage account to the real azure account.   More Awesome Features As a in-memory distributed caching solution, the Caching (Preview) has some fancy features I would like to highlight here. The first one is the high availability support. This is the first time I have heard that a distributed cache support high availability. In the distributed cache world if a cache cluster was failed, the data it stored will be lost. This behavior was introduced by Memcached and is followed by almost all distributed cache productions. But Caching (Preview) provides high availability, which means you can specify if the named cache will be backup automatically. If yes then the data belongs to this named cache will be replicated on another role instance of this role. Then if one of the instance was failed the data can be retrieved from its backup instance. To enable the backup just open the Caching page in Visual Studio. In the named cache you want to enable backup, change the Backup Copies value from 0 to 1. The value of Backup Copies only for 0 and 1. “0” means no backup and no high availability while “1” means enabled high availability with backup the data into another instance. But by using the high availability feature there are something we need to make sure. Firstly the high availability does NOT means the data in cache will never be lost for any kind of failure. For example, if we have a role with cache enabled that has 10 instances, and 9 of them was failed, then most of the cached data will be lost since the primary and backup instance may failed together. But normally is will not be happened since MS guarantees that it will use the instance in the different fault domain for backup cache. Another one is that, enabling the backup means you store two copies of your data. For example if you think 100MB memory is OK for cache, but you need at least 200MB if you enabled backup. Besides the high availability, the Caching (Preview) support more features introduced in Windows Server AppFabric Caching than the Windows Azure Shared Caching. It supports local cache with notification. It also support absolute and slide window expiration types as well. And the Caching (Preview) also support the Memcached protocol as well. This means if you have an application based on Memcached, you can use Caching (Preview) without any code changes. What you need to do is to change the configuration of how you connect to the cache. Similar as the Windows Azure Shared Caching, MS also offers the out-of-box ASP.NET session provider and output cache provide on top of the Caching (Preview).   Summary Caching is very important component when we building a cloud-based application. In the June 2012 update MS provides a new cache solution named Caching (Preview). Different from the existing Windows Azure Shared Caching, Caching (Preview) runs the cache cluster within the role instances we have deployed to the cloud. It gives more control, more performance and more cost-effect. So now we have two caching solutions in Windows Azure, the Shared Caching and Caching (Preview). If you need a central cache service which can be used by many cloud services and web sites, then you have to use the Shared Caching. But if you only need a fast, near distributed cache, then you’d better use Caching (Preview).   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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• How to allow bind in app armor?

  - by WitchCraft

  Question: I did setup bind9 as described here: http://ubuntuforums.org/showthread.php?p=12149576#post12149576 Now I have a little problem with apparmor: If I switch it off, it works. If apparmor runs, it doesn't work, and I get the following dmesg output: [ 23.809767] type=1400 audit(1344097913.519:11): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1540 comm="apparmor_parser" [ 23.811537] type=1400 audit(1344097913.519:12): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1540 comm="apparmor_parser" [ 23.812514] type=1400 audit(1344097913.523:13): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1540 comm="apparmor_parser" [ 23.821999] type=1400 audit(1344097913.531:14): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld" pid=1544 comm="apparmor_parser" [ 23.845085] type=1400 audit(1344097913.555:15): apparmor="STATUS" operation="profile_load" name="/usr/sbin/libvirtd" pid=1543 comm="apparmor_parser" [ 23.849051] type=1400 audit(1344097913.559:16): apparmor="STATUS" operation="profile_load" name="/usr/sbin/named" pid=1545 comm="apparmor_parser" [ 23.849509] type=1400 audit(1344097913.559:17): apparmor="STATUS" operation="profile_load" name="/usr/lib/libvirt/virt-aa-helper" pid=1542 comm="apparmor_parser" [ 23.851597] type=1400 audit(1344097913.559:18): apparmor="STATUS" operation="profile_load" name="/usr/sbin/tcpdump" pid=1547 comm="apparmor_parser" [ 24.415193] type=1400 audit(1344097914.123:19): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=1625 comm="apparmor_parser" [ 24.738631] ip_tables: (C) 2000-2006 Netfilter Core Team [ 25.005242] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 25.187939] ADDRCONF(NETDEV_UP): virbr0: link is not ready [ 26.004282] Ebtables v2.0 registered [ 26.068783] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 28.158848] postgres (1900): /proc/1900/oom_adj is deprecated, please use /proc/1900/oom_score_adj instead. [ 29.840079] xenbr0: no IPv6 routers present [ 31.502916] type=1400 audit(1344097919.088:20): apparmor="DENIED" operation="mknod" parent=1984 profile="/usr/sbin/named" name="/var/log/query.log" pid=1989 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 34.336141] xenbr0: port 1(eth0) entering forwarding state [ 38.424359] Event-channel device installed. [ 38.853077] XENBUS: Unable to read cpu state [ 38.854215] XENBUS: Unable to read cpu state [ 38.855231] XENBUS: Unable to read cpu state [ 38.858891] XENBUS: Unable to read cpu state [ 47.411497] device vif1.0 entered promiscuous mode [ 47.429245] ADDRCONF(NETDEV_UP): vif1.0: link is not ready [ 49.366219] virbr0: port 1(vif1.0) entering disabled state [ 49.366705] virbr0: port 1(vif1.0) entering disabled state [ 49.368873] virbr0: mixed no checksumming and other settings. [ 97.273028] type=1400 audit(1344097984.861:21): apparmor="DENIED" operation="mknod" parent=3076 profile="/usr/sbin/named" name="/var/log/query.log" pid=3078 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 277.790627] type=1400 audit(1344098165.377:22): apparmor="DENIED" operation="mknod" parent=3384 profile="/usr/sbin/named" name="/var/log/query.log" pid=3389 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 287.812986] type=1400 audit(1344098175.401:23): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/root/tmp-gjnX0c0dDa" pid=3400 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 287.818466] type=1400 audit(1344098175.405:24): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/root/tmp-CpOtH52qU5" pid=3400 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 323.166228] type=1400 audit(1344098210.753:25): apparmor="DENIED" operation="mknod" parent=3422 profile="/usr/sbin/named" name="/var/log/query.log" pid=3427 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 386.512586] type=1400 audit(1344098274.101:26): apparmor="DENIED" operation="mknod" parent=3456 profile="/usr/sbin/named" name="/var/log/query.log" pid=3459 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 808.549049] type=1400 audit(1344098696.137:27): apparmor="DENIED" operation="mknod" parent=3872 profile="/usr/sbin/named" name="/var/log/query.log" pid=3877 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 894.671081] type=1400 audit(1344098782.257:28): apparmor="DENIED" operation="mknod" parent=3922 profile="/usr/sbin/named" name="/var/log/query.log" pid=3927 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 968.514669] type=1400 audit(1344098856.101:29): apparmor="DENIED" operation="mknod" parent=3978 profile="/usr/sbin/named" name="/var/log/query.log" pid=3983 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1021.814582] type=1400 audit(1344098909.401:30): apparmor="DENIED" operation="mknod" parent=4010 profile="/usr/sbin/named" name="/var/log/query.log" pid=4012 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1063.856633] type=1400 audit(1344098951.445:31): apparmor="DENIED" operation="mknod" parent=4041 profile="/usr/sbin/named" name="/var/log/query.log" pid=4043 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1085.404001] type=1400 audit(1344098972.989:32): apparmor="DENIED" operation="mknod" parent=4072 profile="/usr/sbin/named" name="/var/log/query.log" pid=4077 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1108.207402] type=1400 audit(1344098995.793:33): apparmor="DENIED" operation="mknod" parent=4102 profile="/usr/sbin/named" name="/var/log/query.log" pid=4107 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1156.947189] type=1400 audit(1344099044.533:34): apparmor="DENIED" operation="mknod" parent=4134 profile="/usr/sbin/named" name="/var/log/query.log" pid=4136 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1166.768005] type=1400 audit(1344099054.353:35): apparmor="DENIED" operation="mknod" parent=4150 profile="/usr/sbin/named" name="/var/log/query.log" pid=4155 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1168.873385] type=1400 audit(1344099056.461:36): apparmor="DENIED" operation="mknod" parent=4162 profile="/usr/sbin/named" name="/var/log/query.log" pid=4167 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1181.558946] type=1400 audit(1344099069.145:37): apparmor="DENIED" operation="mknod" parent=4177 profile="/usr/sbin/named" name="/var/log/query.log" pid=4182 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 1199.349265] type=1400 audit(1344099086.937:38): apparmor="DENIED" operation="mknod" parent=4191 profile="/usr/sbin/named" name="/var/log/query.log" pid=4196 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 1296.805604] type=1400 audit(1344099184.393:39): apparmor="DENIED" operation="mknod" parent=4232 profile="/usr/sbin/named" name="/var/log/query.log" pid=4237 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1317.730568] type=1400 audit(1344099205.317:40): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/tmp-nuBes0IXwi" pid=4251 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1317.730744] type=1400 audit(1344099205.317:41): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/tmp-ZDJA06ZOkU" pid=4252 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1365.072687] type=1400 audit(1344099252.661:42): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/tmp-EnsuYUrGOC" pid=4290 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1365.074520] type=1400 audit(1344099252.661:43): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/tmp-LVCnpWOStP" pid=4287 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1380.336984] type=1400 audit(1344099267.925:44): apparmor="DENIED" operation="mknod" parent=4617 profile="/usr/sbin/named" name="/var/log/query.log" pid=4622 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1437.924534] type=1400 audit(1344099325.513:45): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/tmp-Uyf1dHIZUU" pid=4648 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1437.924626] type=1400 audit(1344099325.513:46): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/tmp-OABXWclII3" pid=4647 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1526.334959] type=1400 audit(1344099413.921:47): apparmor="DENIED" operation="mknod" parent=4749 profile="/usr/sbin/named" name="/var/log/query.log" pid=4754 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 1601.292548] type=1400 audit(1344099488.881:48): apparmor="DENIED" operation="mknod" parent=4835 profile="/usr/sbin/named" name="/var/log/query.log" pid=4840 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 1639.543733] type=1400 audit(1344099527.129:49): apparmor="DENIED" operation="mknod" parent=4905 profile="/usr/sbin/named" name="/var/log/query.log" pid=4907 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1916.381179] type=1400 audit(1344099803.969:50): apparmor="DENIED" operation="mknod" parent=4959 profile="/usr/sbin/named" name="/var/log/query.log" pid=4961 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 1940.816898] type=1400 audit(1344099828.405:51): apparmor="DENIED" operation="mknod" parent=4991 profile="/usr/sbin/named" name="/var/log/query.log" pid=4996 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 2043.010898] type=1400 audit(1344099930.597:52): apparmor="DENIED" operation="mknod" parent=5048 profile="/usr/sbin/named" name="/var/log/query.log" pid=5053 comm="named" requested_mask="c" denied_mask="c" fsuid=107 ouid=107 [ 2084.956230] type=1400 audit(1344099972.545:53): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/var/log/tmp-XYgr33RqUt" pid=5069 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 2084.959120] type=1400 audit(1344099972.545:54): apparmor="DENIED" operation="mknod" parent=3325 profile="/usr/sbin/named" name="/var/log/tmp-vO24RHwL14" pid=5066 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 2088.169500] type=1400 audit(1344099975.757:55): apparmor="DENIED" operation="mknod" parent=5076 profile="/usr/sbin/named" name="/var/log/query.log" pid=5078 comm="named" requested_mask="c" denied_mask="c" fsuid=0 ouid=0 [ 2165.625096] type=1400 audit(1344100053.213:56): apparmor="STATUS" operation="profile_remove" name="/sbin/dhclient" pid=5124 comm="apparmor" [ 2165.625401] type=1400 audit(1344100053.213:57): apparmor="STATUS" operation="profile_remove" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=5124 comm="apparmor" [ 2165.625608] type=1400 audit(1344100053.213:58): apparmor="STATUS" operation="profile_remove" name="/usr/lib/connman/scripts/dhclient-script" pid=5124 comm="apparmor" [ 2165.625782] type=1400 audit(1344100053.213:59): apparmor="STATUS" operation="profile_remove" name="/usr/lib/libvirt/virt-aa-helper" pid=5124 comm="apparmor" [ 2165.625931] type=1400 audit(1344100053.213:60): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/libvirtd" pid=5124 comm="apparmor" [ 2165.626057] type=1400 audit(1344100053.213:61): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/mysqld" pid=5124 comm="apparmor" [ 2165.626181] type=1400 audit(1344100053.213:62): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/named" pid=5124 comm="apparmor" [ 2165.626319] type=1400 audit(1344100053.213:63): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/tcpdump" pid=5124 comm="apparmor" [ 3709.583927] type=1400 audit(1344101597.169:64): apparmor="STATUS" operation="profile_load" name="/usr/sbin/libvirtd" pid=7484 comm="apparmor_parser" [ 3709.839895] type=1400 audit(1344101597.425:65): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld" pid=7485 comm="apparmor_parser" [ 3710.008892] type=1400 audit(1344101597.597:66): apparmor="STATUS" operation="profile_load" name="/usr/lib/libvirt/virt-aa-helper" pid=7483 comm="apparmor_parser" [ 3710.545232] type=1400 audit(1344101598.133:67): apparmor="STATUS" operation="profile_load" name="/usr/sbin/named" pid=7486 comm="apparmor_parser" [ 3710.655600] type=1400 audit(1344101598.241:68): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=7481 comm="apparmor_parser" [ 3710.656013] type=1400 audit(1344101598.241:69): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=7481 comm="apparmor_parser" [ 3710.656786] type=1400 audit(1344101598.245:70): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=7481 comm="apparmor_parser" [ 3710.832624] type=1400 audit(1344101598.421:71): apparmor="STATUS" operation="profile_load" name="/usr/sbin/tcpdump" pid=7488 comm="apparmor_parser" [ 3717.573123] type=1400 audit(1344101605.161:72): apparmor="DENIED" operation="open" parent=7505 profile="/usr/sbin/named" name="/var/log/query.log" pid=7510 comm="named" requested_mask="ac" denied_mask="ac" fsuid=107 ouid=0 [ 3743.667808] type=1400 audit(1344101631.253:73): apparmor="STATUS" operation="profile_remove" name="/sbin/dhclient" pid=7552 comm="apparmor" [ 3743.668338] type=1400 audit(1344101631.257:74): apparmor="STATUS" operation="profile_remove" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=7552 comm="apparmor" [ 3743.668625] type=1400 audit(1344101631.257:75): apparmor="STATUS" operation="profile_remove" name="/usr/lib/connman/scripts/dhclient-script" pid=7552 comm="apparmor" [ 3743.668834] type=1400 audit(1344101631.257:76): apparmor="STATUS" operation="profile_remove" name="/usr/lib/libvirt/virt-aa-helper" pid=7552 comm="apparmor" [ 3743.668991] type=1400 audit(1344101631.257:77): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/libvirtd" pid=7552 comm="apparmor" [ 3743.669127] type=1400 audit(1344101631.257:78): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/mysqld" pid=7552 comm="apparmor" [ 3743.669282] type=1400 audit(1344101631.257:79): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/named" pid=7552 comm="apparmor" [ 3743.669520] type=1400 audit(1344101631.257:80): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/tcpdump" pid=7552 comm="apparmor" [ 3873.572336] type=1400 audit(1344101761.161:81): apparmor="STATUS" operation="profile_load" name="/usr/sbin/libvirtd" pid=7722 comm="apparmor_parser" [ 3873.826209] type=1400 audit(1344101761.413:82): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld" pid=7723 comm="apparmor_parser" [ 3873.988181] type=1400 audit(1344101761.577:83): apparmor="STATUS" operation="profile_load" name="/usr/lib/libvirt/virt-aa-helper" pid=7721 comm="apparmor_parser" [ 3874.520305] type=1400 audit(1344101762.109:84): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=7719 comm="apparmor_parser" [ 3874.520736] type=1400 audit(1344101762.109:85): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=7719 comm="apparmor_parser" [ 3874.521000] type=1400 audit(1344101762.109:86): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=7719 comm="apparmor_parser" [ 3874.528878] type=1400 audit(1344101762.117:87): apparmor="STATUS" operation="profile_load" name="/usr/sbin/named" pid=7724 comm="apparmor_parser" [ 3874.930712] type=1400 audit(1344101762.517:88): apparmor="STATUS" operation="profile_load" name="/usr/sbin/tcpdump" pid=7726 comm="apparmor_parser" [ 3971.744599] type=1400 audit(1344101859.333:89): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/libvirtd" pid=7899 comm="apparmor_parser" [ 3972.009857] type=1400 audit(1344101859.597:90): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=7900 comm="apparmor_parser" [ 3972.165297] type=1400 audit(1344101859.753:91): apparmor="STATUS" operation="profile_replace" name="/usr/lib/libvirt/virt-aa-helper" pid=7898 comm="apparmor_parser" [ 3972.587766] type=1400 audit(1344101860.173:92): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/named" pid=7901 comm="apparmor_parser" [ 3972.847189] type=1400 audit(1344101860.433:93): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=7896 comm="apparmor_parser" [ 3972.847705] type=1400 audit(1344101860.433:94): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=7896 comm="apparmor_parser" [ 3972.848150] type=1400 audit(1344101860.433:95): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=7896 comm="apparmor_parser" [ 3973.147889] type=1400 audit(1344101860.733:96): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/tcpdump" pid=7903 comm="apparmor_parser" [ 3988.863999] type=1400 audit(1344101876.449:97): apparmor="DENIED" operation="open" parent=7939 profile="/usr/sbin/named" name="/var/log/query.log" pid=7944 comm="named" requested_mask="ac" denied_mask="ac" fsuid=107 ouid=0 [ 4025.826132] type=1400 audit(1344101913.413:98): apparmor="STATUS" operation="profile_remove" name="/sbin/dhclient" pid=7975 comm="apparmor" [ 4025.826627] type=1400 audit(1344101913.413:99): apparmor="STATUS" operation="profile_remove" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=7975 comm="apparmor" [ 4025.826861] type=1400 audit(1344101913.413:100): apparmor="STATUS" operation="profile_remove" name="/usr/lib/connman/scripts/dhclient-script" pid=7975 comm="apparmor" [ 4025.827059] type=1400 audit(1344101913.413:101): apparmor="STATUS" operation="profile_remove" name="/usr/lib/libvirt/virt-aa-helper" pid=7975 comm="apparmor" [ 4025.827214] type=1400 audit(1344101913.413:102): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/libvirtd" pid=7975 comm="apparmor" [ 4025.827352] type=1400 audit(1344101913.413:103): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/mysqld" pid=7975 comm="apparmor" [ 4025.827485] type=1400 audit(1344101913.413:104): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/named" pid=7975 comm="apparmor" [ 4025.827624] type=1400 audit(1344101913.413:105): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/tcpdump" pid=7975 comm="apparmor" [ 4027.862198] type=1400 audit(1344101915.449:106): apparmor="STATUS" operation="profile_load" name="/usr/sbin/libvirtd" pid=8090 comm="apparmor_parser" [ 4039.500920] audit_printk_skb: 21 callbacks suppressed [ 4039.500932] type=1400 audit(1344101927.089:114): apparmor="STATUS" operation="profile_remove" name="/sbin/dhclient" pid=8114 comm="apparmor" [ 4039.501413] type=1400 audit(1344101927.089:115): apparmor="STATUS" operation="profile_remove" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=8114 comm="apparmor" [ 4039.501672] type=1400 audit(1344101927.089:116): apparmor="STATUS" operation="profile_remove" name="/usr/lib/connman/scripts/dhclient-script" pid=8114 comm="apparmor" [ 4039.501861] type=1400 audit(1344101927.089:117): apparmor="STATUS" operation="profile_remove" name="/usr/lib/libvirt/virt-aa-helper" pid=8114 comm="apparmor" [ 4039.502033] type=1400 audit(1344101927.089:118): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/libvirtd" pid=8114 comm="apparmor" [ 4039.502170] type=1400 audit(1344101927.089:119): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/mysqld" pid=8114 comm="apparmor" [ 4039.502305] type=1400 audit(1344101927.089:120): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/named" pid=8114 comm="apparmor" [ 4039.502442] type=1400 audit(1344101927.089:121): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/tcpdump" pid=8114 comm="apparmor" [ 4041.425405] type=1400 audit(1344101929.013:122): apparmor="STATUS" operation="profile_load" name="/usr/lib/libvirt/virt-aa-helper" pid=8240 comm="apparmor_parser" [ 4041.425952] type=1400 audit(1344101929.013:123): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=8238 comm="apparmor_parser" [ 4058.910390] audit_printk_skb: 18 callbacks suppressed [ 4058.910401] type=1400 audit(1344101946.497:130): apparmor="STATUS" operation="profile_remove" name="/sbin/dhclient" pid=8264 comm="apparmor" [ 4058.910757] type=1400 audit(1344101946.497:131): apparmor="STATUS" operation="profile_remove" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=8264 comm="apparmor" [ 4058.910969] type=1400 audit(1344101946.497:132): apparmor="STATUS" operation="profile_remove" name="/usr/lib/connman/scripts/dhclient-script" pid=8264 comm="apparmor" [ 4058.911185] type=1400 audit(1344101946.497:133): apparmor="STATUS" operation="profile_remove" name="/usr/lib/libvirt/virt-aa-helper" pid=8264 comm="apparmor" [ 4058.911335] type=1400 audit(1344101946.497:134): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/libvirtd" pid=8264 comm="apparmor" [ 4058.911595] type=1400 audit(1344101946.497:135): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/mysqld" pid=8264 comm="apparmor" [ 4058.911856] type=1400 audit(1344101946.497:136): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/named" pid=8264 comm="apparmor" [ 4058.912001] type=1400 audit(1344101946.497:137): apparmor="STATUS" operation="profile_remove" name="/usr/sbin/tcpdump" pid=8264 comm="apparmor" [ 4060.266700] type=1400 audit(1344101947.853:138): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=8391 comm="apparmor_parser" [ 4060.268356] type=1400 audit(1344101947.857:139): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=8391 comm="apparmor_parser" [ 5909.432749] audit_printk_skb: 18 callbacks suppressed [ 5909.432759] type=1400 audit(1344103797.021:146): apparmor="DENIED" operation="open" parent=8800 profile="/usr/sbin/named" name="/var/log/query.log" pid=8805 comm="named" requested_mask="ac" denied_mask="ac" fsuid=107 ouid=0 root@zotac:~# What can I do that it still works and I don't have to disable apparmor ?

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• CodePlex Daily Summary for Friday, November 08, 2013

  CodePlex Daily Summary for Friday, November 08, 2013Popular ReleasesDynamics AX 2012 R2 Kitting: AX 2012 R2 CU7 release of Kitting: Here is the AX 2012 R2 CU7 release of kitting. Released both as a XPO and a model.PantheR's GraphX for .NET: GraphX for .NET RELEASE v1.0.1: PLEASE RATE THIS RELEASE IF YOU LIKED IT! THANKS! :) RELEASE 1.0.1 + Changed ExportToImage() parameters: added useZoomControlSurface param that enables zoom control parent visual space to be used for export instead whole GraphArea panel. Using this technique it is possible to export graphs with negative vertices coordinates. + Added common interface IZoomControl for all included Zoom controls + Added new method GraphArea.GenerateGraph() that accepts only optional parameters and will use in...ConEmu - Windows console with tabs: ConEmu 131107 [Alpha]: ConEmu - developer build x86 and x64 versions. Written in C++, no additional packages required. Run "ConEmu.exe" or "ConEmu64.exe". Some useful information you may found: http://superuser.com/questions/tagged/conemu http://code.google.com/p/conemu-maximus5/wiki/ConEmuFAQ http://code.google.com/p/conemu-maximus5/wiki/TableOfContents If you want to use ConEmu in portable mode, just create empty "ConEmu.xml" file near to "ConEmu.exe"Team Foundation Server Upgrade Guide: v3 - TFS 2013 Upgrade Guide: Welcome to the Team Foundation Server Upgrade Guide Quality-Bar Details Documentation has been reviewed by Visual Studio ALM Rangers Documentation has not been through an independent technical review Known issues NoneUpgrading SharePoint section is not included yet. Independent technical review is pending.Epi Info™ - Community Edition: Epi Info 7 (build 7.1.3.0): ResourcesFor the latest stable downloads and all up-to-date help and training material, please visit the official Epi Info 7 website: http://www.cdc.gov/epiinfo/7 To watch training and overview videos, visit the Epi Info YouTube channel: http://www.youtube.com/user/EpiInfoVideosVidCoder: 1.5.12 Beta: Added an option to preserve Created and Last Modified times when converting files. In Options -> Advanced. Added an option to mark an automatically selected subtitle track as "Default". Updated HandBrake core to SVN 5878. Fixed auto passthrough not applying just after switching to it. Fixed bug where preset/profile/tune could disappear when reverting a preset.Compare .NET Objects: Version 1.7.4.0: Manual merge of patch 15325 from Farris to fix issues 9075 and 9076 relating to defects with Ignoring the Collection Order Applied patch 15263 from MariuszWojcik to support LINQ enumerators.Toolbox for Dynamics CRM 2011/2013: XrmToolBox (v1.2013.9.25): XrmToolbox improvement Correct changing connection from the status dropdown Tools improvement Updated tool Audit Center (v1.2013.9.10) -> Publish entities Iconator (v1.2013.9.27) -> Optimized asynchronous loading of images and entities MetadataDocumentGenerator (v1.2013.11.6) -> Correct system entities reading with incorrect attribute type Script Manager (v1.2013.9.27) -> Retrieve only custom events SiteMapEditor (v1.2013.11.7) -> Reset of CRM 2013 SiteMap ViewLayoutReplicator (v1.201...Microsoft SQL Server Product Samples: Database: SQL Server 2014 CTP2 In-Memory OLTP Sample, based: This sample showcases the new In-Memory OLTP feature, which is part of SQL Server 2014 CTP2. It shows the new memory-optimized tables and natively-compiled stored procedures, and can be used to show the performance benefit of in-memory OLTP. Installation instructions for the sample are included in the file ‘awinmemsample.doc’, which is part of the download. You can ask a question about this sample at the SQL Server Samples Forum Composite C1 CMS - Open Source on .NET: Composite C1 4.1: Composite C1 4.1 (4.1.5058.34326) Write a review for this release - help us improve, recommend us. Getting started If you are new to Composite C1 and want to install it: http://docs.composite.net/Getting-started What's new in Composite C1 4.1 The following are highlights of major changes since Composite C1 4.0: General user features: Drag-and-drop images and files like PDF and Word directly from own your desktop and folders into page content Allow you to install Composite Form Builder ...CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.9.0: Implemented Recent Scripts list Added checking for plugin updates from AboutBox Multiple formatting improvements/fixes Implemented selection of the CLR version when preparing distribution package Added project panel button for showing plugin shortcuts list Added 'What's New?' panel Fixed auto-formatting scrolling artifact Implemented navigation to "logical" file (vs. auto-generated) file from output panel To avoid the DLLs getting locked by OS use MSI file for the installation.Home Access Plus+: v9.7: Updated: JSON.net Fixed: Issue with the Windows 8 App Added: Windows 8.1 App Added: Win: Self Signed HAP+ Install Support Added: Win: Delete File Support Added: Timeout for the Logon Tracker Removed: Error Dialogs on the User Card Fixed: Green line showing over the booking form Note: a web.config file update is requiredWPF Extended DataGrid: WPF Extended DataGrid 2.0.0.10 binaries: Now row summaries are updated whenever autofilter value sis modified.Social Network Importer for NodeXL: SocialNetImporter(v.1.9.1): This new version includes: - Include me option is back - Fixed the login bug reported latelyVeraCrypt: VeraCrypt version 1.0c: Changes between 1.0b and 1.0c (11 November 2013) : Set correctly the minimum required version in volumes header (this value must always follow the program version after any major changes). This also solves also the hidden volume issueCaptcha MVC: Captcha MVC 2.5: v 2.5: Added support for MVC 5. The DefaultCaptchaManager is no longer throws an error if the captcha values was entered incorrectly. Minor changes. v 2.4.1: Fixed issues with deleting incorrect values of the captcha token in the SessionStorageProvider. This could lead to a situation when the captcha was not working with the SessionStorageProvider. Minor changes. v 2.4: Changed the IIntelligencePolicy interface, added ICaptchaManager as parameter for all methods. Improved font size ...Duplica: duplica 0.2.498: this is first stable releaseDNN Blog: 06.00.01: 06.00.01 ReleaseThis is the first bugfix release of the new v6 blog module. These are the changes: Added some robustness in v5-v6 scripts to cater for some rare upgrade scenarios Changed the name of the module definition to avoid clash with Evoq Social Addition of sitemap providerVG-Ripper & PG-Ripper: VG-Ripper 2.9.50: changes NEW: Added Support for "ImageHostHQ.com" links NEW: Added Support for "ImgMoney.net" links NEW: Added Support for "ImgSavy.com" links NEW: Added Support for "PixTreat.com" links Bug fixesWsus Package Publisher: Release v1.3.1311.02: Add three new Actions in Custom Updates : Work with Files (Copy, Delete, Rename), Work with Folders (Add, Delete, Rename) and Work with Registry Keys (Add, Delete, Rename). Fix a bug, where after resigning an update, the display is not refresh. Modify the way WPP sort rows in 'Updates Detail Viewer' and 'Computer List Viewer' so that dates are correctly sorted. Add a Tab in the settings form to set Proxy settings when WPP needs to go on Internet. Fix a bug where 'Manage Catalogs Subsc...New ProjectsBDTramite: El presente proyecto sera realizado por los alumnos: - Oliver Becerra Briones - Eduardo Tello Cruzado - Gustavo Huaripata Sanchez - Williams Infante PradoCONDIMAR: SISTEMA DE VENTAS CONDIMARCurso20480B201311: course project new horizonsDeck Builder 5000: This application is a very simple tool used to make deck building in your favorite card battling game a breeze! doinikTara: doinik taraDovizHesap: Özel Dvz Gelistirme ProjesiEventSys: Sistema de EventosItems Filter (WPF DataGrid column Filter).: WPF quick filter controls - all where you need it. This is the easiest way to enrich you DataGrid width quick filter in header like in Excell, but not only thatJade: ????????? kolhoz: ??????? ??? ????????? ?????????? ????LINQ2DynamoDB: A type-safe data context for AWS DynamoDB with LINQ and in-memory caching support. Allows to combine DynamoDB's durability with cache speed and read consistencyM5NDFD: MVC5 NorthWind DataFirst Microsoft Forefront 2010 R2 Powershell Extension: Powershell extensions for Microsoft Forefront 2010 R2 to enable usage of powershell from both Portal as Workflow Activity and Synchronization Engine as XMAMulti Database Migrator: Miltiple database migratorMy Bacon Recipe (Prototype): MyBaconRecipe is a VB.NET prototype website for bacon recipes. Users can add, seach & sort recipes. Developed by Justin Mifsud as part of Assignment2 (7COM0152)MYPROJECT-sareddy: Just Sample ProjectObjectStore - An easy to use ObjectRelational-Mapper: An easy to use OR-Mapper which supports Code only(no Designer) and existing Database(no Sync or Codegeneration) by implementing abstract Classes at runtime.Open Electronic Integrated Disease Surveillance System (EIDSS™): SummaryPegion: A LAN Messenger projectPetshop2013_MyM: LolololoppeSmokeTest110713: awdawdPraxis: Esta es la primera prueba.Praxis2: PraxisProject Dionysus: Local Movie App being built undergroundProject JDT: About management system.PROJECT SITI KULIM: project siti punyaProject Taiping: Project TaipingPublic_Library: ???SHRFrameWork: This Framework use EF6 , Repository, Unit of Work and othre patternsteamtesting: teamtestingTheProject: The project for Samara team !Travel Website: Travel Website is a website that contains several hotels. Users can browse these hotels, view detailed info, comment and rate them.?ng d?ng chuy?n và nh?n s? ki?n trên windows: de an xay dung ung dung chuyen va nhan su kien tren windowsVehicle Statistics Analysis: Build a generic framework for extracting second hand vehicle retail pricing. Virtual joystick control (Silverlight, WP): Simple on-screen "virtual" joystick control for SilverlightVisual Studio Coverage file to Emma converter: Visual Studio Coverage file to Emma converter. Simple solution, can apply only one tool to five Visual Studio versions. Fast multicore processing.WebForms DataSourceControl for EntityFramework CodeFirst: A ASP.NET WebForms DataSourceControl for use with DbContext & CodeFirst.WPF Study: wpf study project ???????: ???????，???? Session ??????????.

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• CFBundleVersion error even though new version is higher

  - by Rob

  When trying to upload an upgrade binary to iTunes Connect, I am getting this error message even though I have updated CFBundleVersion in my info.plist file to a higher value (and checked the package contents after building it to be sure it copied over). I have already successfully submitted a different app upgrade by doing this same method, but for whatever reason it won't work this time. Any insights or is this an iTunes bug? The binary you uploaded was invalid. The key CFBundleVersion in the Info.plist file must contain a higher version than that of the previously uploaded version.

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• WCF 4.0 new enhancements over WCF 3.5

  - by chugh97

  What are the new enhancements in WCF 4.0 and how easy would it be to upgrade existing WCF services to 4.0?

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• Modifying PROCTHROTTLEMAX with powercfg has no effect in 2008 R2

  - by AlexC

  I am trying to make the CPU transition to a lower P-state. I used pwrtest to determine the tests, and now I want to set the processor frequency to 50%. I executed the following command: powercfg -setacvalue SCHEME_BALANCED SUB_PROCESSOR PROCTHROTTLEMAX 50 When i query the scheme, the value is set to the desired value. However, the processor frequency is not modified (I am using CPU-Z to check the frequency). My system is running Windows 2008 R2. Any ideas? Thanks!

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• Silverlight themee error: Cannot find a Resource with the Name/Key System.Windows.Controls.Primitive

  - by Mark

  I have got an(other) error while trying to upgrade our large project to SL4. I didn't write the original theme and my theme knowlege isn't great. In my SL3 app I have a datagrid themed like so: <!--Datagrid Style--> <Style TargetType="datagrid:DataGrid"> <Setter Property="RowHeaderStyle" Value="{StaticResource System.Windows.Controls.Primitives.DataGridRowHeader}"/> <Setter Property="RowBackground" Value="Transparent"/> <Setter Property="etc" Value="..."/> </Style> When I upgrade to SL 4 the first line in the XAML above gives a runtime error: Cannot find a Resource with the Name/Key System.Windows.Controls.Primitives.DataGridRowHeader Should I handle this differently in SL4? TIA Mark Example showing error: http://walkersretreat.co.nz/files/SilverlightApplication1.zip

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• Redmine error undefined local variable 'usage' when recieving email

  - by fred

  I posted this on the Redmine forum about 20 days ago but am having no luck finding an answer, so I thought I'd see if I can find some love here: Somewhere during an upgrade to RM I lost the ability to have RM receive email. It was running just beautifully on 8.5. Some while back I upgraded and was not using the receive email feature for some time. At 9.2 and, now, 0.9.3.stable.3625, I'm getting an error in the procmail.log file: undefined local variable or method `usage' for #<RedmineMailHandler:0x6c14d34bb0a0> (NameError) I have a SVN install and used it, just tonight, to update the the 9.3 stable version. I walked through all the upgrade steps and everything seems to work fine, except for this. In rdm-redminehandler.rb I commented out the offending 'usage' line and got another error: 422 Unprocessable Entity

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• Visual Studio IDE freezing while initializing ToolBox

  - by Mohanavel

  I'm working on Visual Studio 2008, Smart Client + infragistics controls are installed and we have more than 50 User Controls. When opening the Visual Studio "Tool Box", Visual Studio is completely freezing. I couldn't work after that. I have to kill the process and open again. At this point CPU usage is around 50, CPU usage is 1 or 2 when i work on code. How to get rid out of this issue. This is really time consuming process.

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• Recommendation for high performance WPF Chart

  - by Ajaxx

  We're working on a WPF-based desktop application that charts financial markets information (candlestick charts, overlayed indicator curves, volume, etc). The charts are displayed in real-time with responses to market ticks being shown in real-time (updating one to two times per second is probably a reasonable display refresh policy). We've been looking for a software package (commercial is fine by us) that has the capability of displaying these charts. Additionally, we'd like to have an approach that can render the initial amount of data in a reasonable timeframe (give or take 100-200ms from the time we hand the data over to a complete render on screen). Also we view multiple charts (5-10) simultaneously so a solution that chews up 50% of my CPU to display one chart really isn't going to work well. Has anyone had any good experiences with charting controls. We've had to hand roll the last few charts we've done and I'd prefer not to do it again. Solutions that can make use of the GPU to minimize CPU utilization would be nice as well.

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• Is InstallShield 2010 really necessary to support Windows 7 (against using InstallShield 12)

  - by Steve

  I have received an e-mail from Flexera containing the following statement: "We understand that many of our customers still using InstallShield 12 maybe having difficulties sending installations to Windows 7 desktops, 64 Bit servers or R2 2008. Therefore we would like to provide this opportunity for you to erase these potential / current problems and upgrade despite InstallShield 12 being End of Life’d some time ago." We have not had any problems ourselves. I am interested to hear if anyone else has had any issues or whether this is a scare to get us to upgrade unnecessarily. I did examine in some detail the differences at the original end-of-life notice but could not see any issues that affected our installations. Interestingly they call this an 'amnesty' - almost implying we are criminals for not upgrading (cf OED).

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• Mongodb performance on Windows

  - by Chris

  I've been researching nosql options available for .NET lately and MongoDB is emerging as a clear winner in terms of availability and support, so tonight I decided to give it a go. I downloaded version 1.2.4 (Windows x64 binary) from the mongodb site and ran it with the following options: C:\mongodb\bin>mkdir data C:\mongodb\bin>mongod -dbpath ./data --cpu --quiet I then loaded up the latest mongodb-csharp driver from http://github.com/samus/mongodb-csharp and immediately ran the benchmark program. Having heard about how "amazingly fast" MongoDB is, I was rather shocked at the poor benchmark performance. Starting Tests encode (small).........................................320000 00:00:00.0156250 encode (medium)........................................80000 00:00:00.0625000 encode (large).........................................1818 00:00:02.7500000 decode (small).........................................320000 00:00:00.0156250 decode (medium)........................................160000 00:00:00.0312500 decode (large).........................................2370 00:00:02.1093750 insert (small, no index)...............................2176 00:00:02.2968750 insert (medium, no index)..............................2269 00:00:02.2031250 insert (large, no index)...............................778 00:00:06.4218750 insert (small, indexed)................................2051 00:00:02.4375000 insert (medium, indexed)...............................2133 00:00:02.3437500 insert (large, indexed)................................835 00:00:05.9843750 batch insert (small, no index).........................53333 00:00:00.0937500 batch insert (medium, no index)........................26666 00:00:00.1875000 batch insert (large, no index).........................1114 00:00:04.4843750 find_one (small, no index).............................350 00:00:14.2812500 find_one (medium, no index)............................204 00:00:24.4687500 find_one (large, no index).............................135 00:00:37.0156250 find_one (small, indexed)..............................352 00:00:14.1718750 find_one (medium, indexed).............................184 00:00:27.0937500 find_one (large, indexed)..............................128 00:00:38.9062500 find (small, no index).................................516 00:00:09.6718750 find (medium, no index)................................316 00:00:15.7812500 find (large, no index).................................216 00:00:23.0468750 find (small, indexed)..................................532 00:00:09.3906250 find (medium, indexed).................................346 00:00:14.4375000 find (large, indexed)..................................212 00:00:23.5468750 find range (small, indexed)............................440 00:00:11.3593750 find range (medium, indexed)...........................294 00:00:16.9531250 find range (large, indexed)............................199 00:00:25.0625000 Press any key to continue... For starters, I can get better non-batch insert performance from SQL Server Express. What really struck me, however, was the slow performance of the find_nnnn queries. Why is retrieving data from MongoDB so slow? What am I missing? Edit: This was all on the local machine, no network latency or anything. MongoDB's CPU usage ran at about 75% the entire time the test was running. Edit 2: Also, I ran a trace on the benchmark program and confirmed that 50% of the CPU time spent was waiting for MongoDB to return data, so it's not a performance issue with the C# driver.

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• WMI Windows 7 vs Server 2003 R2 Problem

  - by Shahmir Javaid

  I have the below procedures running one after the Other. It seems to work fine in Windows 7 but fails on Windows Server 2003 R2. Any Ideas Why? Am i suppose to be disposing For Cpu ManagementObjectSearcher cpuSearcher = new ManagementObjectSearcher("root\\CIMv2", "SELECT * FROM Win32_Processor"); foreach (ManagementObject cpuObj in cpuSearcher.Get()) { cpu.Add(new cpuinfo(cpuObj["Name"].ToString())); cpuObj.Dispose(); } cpuSearcher.Dispose(); For Memory ManagementObjectSearcher memSearcher = new ManagementObjectSearcher("root\\CIMv2", "SELECT Capacity FROM Win32_PhysicalMemory"); //Get total Memory foreach (ManagementObject memObj in memSearcher.Get()) { MemTotal += (Int64.Parse((memObj["Capacity"].ToString()))); memObj.Dispose(); } Any Help would be apreaciated

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• Upgrading from SQL Server 2008 Express to 2008 Developer

  - by josecortesp

  Hey Guys, this one is a quick Question: What is the best (or THE) way to change my SQL Express 2008 (with advance...) installation to a 2008 Developer edition? I need to keep the databases, along with the logins and so on. I need to upgrade because, I Want to use all the features in TFS 2010. Do I have to make backups of all the data and uninstall express - install developer? Is there a quicker way? Thanks in advance SOLVED: In the SQL Server Installation Center, there a Edition Upgrade options found under Maintenance. The only thing is that you have to choose processor type as x86 (as Express is only x86) in the options in the Installation Center. Now my SQL Server is developer...

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• SQL Profiler: Read/Write units

  - by Ian Boyd

  i've picked a query out of SQL Server Profiler that says it took 1,497 reads: EventClass: SQL:BatchCompleted TextData: SELECT Transactions.... CPU: 406 Reads: 1497 Writes: 0 Duration: 406 So i've taken this query into Query Analyzer, so i may try to reduce the number of reads. But when i turn on SET STATISTICS IO ON to see the IO activity for the query, i get nowhere close to one thousand reads: Table Scan Count Logical Reads =================== ========== ============= FintracTransactions 4 20 LCDs 2 4 LCTs 2 4 FintracTransacti... 0 0 Users 1 2 MALs 0 0 Patrons 0 0 Shifts 1 2 Cages 1 1 Windows 1 3 Logins 1 3 Sessions 1 6 Transactions 1 7 Which if i do my math right, there is a total of 51 reads; not 1,497. So i assume Reads in SQL Profiler is an arbitrary metric. Does anyone know the conversion of SQL Server Profiler Reads to IO Reads? See also SQL Profiler CPU / duration unit Query Analyzer VS. Query Profiler Reads, Writes, and Duration Discrepencies

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• Equivalents to Z80 DJNZ instruction on other architectures?

  - by Justin Ethier

  First a little background. The z80 CPU has an instruction called DJNZ which can be used in a similar manner as a for loop. Basically DJNZ decrements the B register and jumps to a label if not zero. For example: ld b,96 ; erase all of the line disp_version_erase_loop: call _vputblank ; erase pixels at cursor (uses b reg) djnz disp_version_erase_loop ; loop Of course you can do the same thing using regular comparison and jump instructions, but often it is handy to use the single instruction. With that out of the way, my question is, do other CPU architectures include a similar control instruction?

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• C# Confusing Results from Performance Test

  - by aip.cd.aish

  I am currently working on an image processing application. The application captures images from a webcam and then does some processing on it. The app needs to be real time responsive (ideally < 50ms to process each request). I have been doing some timing tests on the code I have and I found something very interesting (see below). clearLog(); log("Log cleared"); camera.QueryFrame(); camera.QueryFrame(); log("Camera buffer cleared"); Sensor s = t.val; log("Sx: " + S.X + " Sy: " + S.Y); Image<Bgr, Byte> cameraImage = camera.QueryFrame(); log("Camera output acuired for processing"); Each time the log is called the time since the beginning of the processing is displayed. Here is my log output: [3 ms]Log cleared [41 ms]Camera buffer cleared [41 ms]Sx: 589 Sy: 414 [112 ms]Camera output acuired for processing The timings are computed using a StopWatch from System.Diagonostics. QUESTION 1 I find this slightly interesting, since when the same method is called twice it executes in ~40ms and when it is called once the next time it took longer (~70ms). Assigning the value can't really be taking that long right? QUESTION 2 Also the timing for each step recorded above varies from time to time. The values for some steps are sometimes as low as 0ms and sometimes as high as 100ms. Though most of the numbers seem to be relatively consistent. I guess this may be because the CPU was used by some other process in the mean time? (If this is for some other reason, please let me know) Is there some way to ensure that when this function runs, it gets the highest priority? So that the speed test results will be consistently low (in terms of time). EDIT I change the code to remove the two blank query frames from above, so the code is now: clearLog(); log("Log cleared"); Sensor s = t.val; log("Sx: " + S.X + " Sy: " + S.Y); Image<Bgr, Byte> cameraImage = camera.QueryFrame(); log("Camera output acuired for processing"); The timing results are now: [2 ms]Log cleared [3 ms]Sx: 589 Sy: 414 [5 ms]Camera output acuired for processing The next steps now take longer (sometimes, the next step jumps to after 20-30ms, while the next step was previously almost instantaneous). I am guessing this is due to the CPU scheduling. Is there someway I can ensure the CPU does not get scheduled to do something else while it is running through this code?

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• Visual studio 2008/2010 dilemma

  - by jon

  We have a project which is being developed by a 3rd party. They are using LINQ and .NET 3.5 with Visual Studio 2008. We are currently at 2005 with .NET 2. Once they have delivered the code to us, we are unsure as to whether we will be able to compile/build their code using our current Visual Studio toolkit. I know we can download .NET 3.5, but unsure as to whether we will have problems with Visual Studio. So we are considering to upgrade. But since Visual Studio 2010 is soon to be released do we wait for that or upgrade to 2008?

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• Why won't the VisualVM Profiler profile my application?

  - by Luke

  I've created a simple 1 file java application that iterates through a loop, calls some functions, allocates some memory, adds some numbers, etc. I run that application via eclipse's Run As->Java Application. The running application shows up in Java VisualVM under Local. I double click on that application and go to the Profiler tab. The default settings are: Start profiling from classes: my.main.package.** Do not profile classes: java.*, javax.*, sun.*, sunw.*, com.sun.* I click on CPU. The CPU and Memory buttons gray out. Nothing happens. The Status says profiling inactive. When my application terminates the Status says application terminated. What am I doing wrong here? Are there some settings I need to tweak? Do I need to set a VM flag when I launch my application?

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• Performance of DrawingVisual vs Canvas.OnRender for lots of constantly changing shapes

  - by romkyns

  I'm working on a game-like app which has up to a thousand shapes (ellipses and lines) that constantly change at 60fps. Having read an excellent article on rendering many moving shapes, I implemented this using a custom Canvas descendant that overrides OnRender to do the drawing via a DrawingContext. The performance is quite reasonable, although the CPU usage stays high. However, the article suggests that the most efficient approach for constantly moving shapes is to use lots of DrawingVisual instances instead of OnRender. Unfortunately though it doesn't explain why that should be faster for this scenario. Changing the implementation in this way is not a small effort, so I'd like to understand the reasons and whether they are applicable to me before deciding to make the switch. Why could the DrawingVisual approach result in lower CPU usage than the OnRender approach in this scenario?

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