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• Added resolution not working after upgrading to 12.04

  - by David

  After upgrading, my screen resolution (added by xrandr comands on the start) did not work like before. Messages appear showing some errors (that i have never had in 11.10). "No se pudo aplicar la configuración almacenada para los monitores"/"Can't apply the stored configuration for the monitors." This script didn't work either. xrandr --newmode "1280x1024_60.00" 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync xrandr --addmode VGA1 1280x1024_60.00 xrandr --output VGA1 --mode 1280x1024_60.00 I also tryed deleting monitors.xml but, nothing. This only erase the window message. It's been sayd that ##It's a normal buggy and well know problem for Pc's with Intel integrated video cards.## The new version of gnome-settings-daemon stores its configuration information in dconf rather than gconf. I tryed something, but the problem persist. This is what i did. Install the dconf-tools package, and then run dconf-editor. In the tree on the left, navigate org - gnome - settings-daemon - plugins - xrandr. Uncheck the active checkbox. restart your XServer (Ctrl+Alt+Backspace) (It didn't worked out for me, but it may be helpful to someone)

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• Best of OTN - Week of November 4th

  - by CassandraClark-OTN

  It was another exciting week at OTN!  Lots of GREAT content to share.  If you had a favorite that you don't see listed let us know in the comment section below.  Java Community - JavaOne Sessions Online - We've posted 60 of the JavaOne sessions online, and we'll be rolling out more sessions every few weeks. This content is free, courtesy of Oracle.NetBeans 7.4 Released  - NetBeans 7.4 features HTML5 integration for Java EE and PHP development; support for Apache Cordova and JDK 8 preview features; enhancements to Maven, C/C++, and more.vJUG: Worldwide Virtual JUG Created - London Java Community leader and technical evangelist Simon Maple has created a Meetup called vJUG, with aim toward connecting Java Developers in the virtual world.Tori Wieldt, Java Community Manager Friday Funny: This is what REALLY happens when you give someone your business card ow.ly/q6aKUArchitect Community - Don't forget to register for the free Virtual Developer Day - Harnessing the Power of Oracle WebLogic and Oracle Coherence.  December 3rd, 2013 - Two great tracks, Design & Develop and Build, Deploy & Manage.   Why wait, register now!  Multi-Factor Authentication in Oracle WebLogic - Shailesh K. Mishra - Really good technical article on using multi-factor authentication to protect web applications deployed on Oracle WebLogic.Coherence*Web: Sharing an httpSessions Among Applications in Different Oracle WebLogic Clusters - Jordi VillenaUnderstanding when and how to select session attributes that must be stored in the local storage of the Oracle WebLogic instances and which should be leveraged to an Oracle Coherence distributed cache.  Bob Rhubart, Architect Community Manager Friday Funny - "Be yourself, everyone else is already taken." Oscar Wilde (October 16, 1854 - November 30, 1900) Irish writer and poet.

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• "Viral" license that only blocks legal actions of user and developer against each other

  - by Lukasz Zaroda

  I was thinking a lot about software licensing lately, because I would like to do some coding. I'm not an expert in all those licenses, so I came up with my own idea, and before I will put in on paper, I would like to make sure that I didn't reinvent a wheel, so maybe I would be able to use something that exists. Main idea behind my license is to guarantee freedom of use the software, but not "freedom to" (positive) (e.g. freedom to having source code), but "freedom from" (negative) (strictly from legal actions against you). It would be "viral" copyleft license. You would be able to without fear do everything you want with the software (and binaries e.g. reverse engineering), as long as You will include information about author and/or authors, and all derivative works will be distributed with the same license. I'm not interested in anything that would restrict a freedom of company to do something like "tivoization". I'm just trying to accomplish something that would block any legal actions of user and developer, targeted against each other, with the exception of basic attribution. Does exist something like that?

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• Hidden Gems: Accelerating Oracle Data Integrator with SOA, Groovy, SDK, and XML

  - by Alex Kotopoulis

  On the last day of Oracle OpenWorld, we had a final advanced session on getting the most out of Oracle Data Integrator through the use of various advanced techniques. The primary way to improve your ODI processes is to choose the optimal knowledge modules for your load and take advantage of the optimized tools of your database, such as OracleDataPump and similar mechanisms in other databases. Knowledge modules also allow you to customize tasks, allowing you to codify best practices that are consistently applied by all integration developers. ODI SDK is another very powerful means to automate and speed up your integration development process. This allows you to automate Life Cycle Management, code comparison, repetitive code generation and change of your integration projects. The SDK is easily accessible through Java or scripting languages such as Groovy and Jython. Finally, all Oracle Data Integration products provide services that can be integrated into a larger Service Oriented Architecture. This moved data integration from an isolated environment into an agile part of a larger business process environment. All Oracle data integration products can play a part in thisracle GoldenGate can integrate into business event streams by processing JMS queues or publishing new events based on database transactions. Oracle GoldenGate can integrate into business event streams by processing JMS queues or publishing new events based on database transactions. Oracle Data Integrator allows full control of its runtime sessions through web services, so that integration jobs can become part of business processes. Oracle Data Service Integrator provides a data virtualization layer over your distributed sources, allowing unified reading and updating for heterogeneous data without replicating and moving data. Oracle Enterprise Data Quality provides data quality services to cleanse and deduplicate your records through web services.

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• Minimize Apps to the System Tray in Windows with MoveToTray

  - by Asian Angel

  Would you like an easy way to minimize apps to the System Tray in Windows and keep your Taskbar clear of clutter? Then all you need is the MoveToTray app to make it happen. MoveToTray does not require installation. Just double click on the exe file or create a shortcut to the app to activate it. When you see the icon for MoveToTray appear in the System Tray you are ready to minimize those apps. To minimize the active app window use the keyboard shortcut “Ctrl + Alt + M” and watch it instantly disappear to the System Tray. To maximize the window simply double click on the app’s icon in the System Tray. Sometimes an app’s regular icon will not display in the System Tray and a copy of MoveToTray’s icon will appear in its’ place (i.e. Paint.NET in our example). Note: There may occasionally be an app that will not minimize to the System Tray. Only one (CubicExplorer) would not minimize during our tests. Download MoveToTray at Softpedia View the Original Blog Post on MoveToTray HTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?Internet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• 12.10 Wireless hotspot configuration and internet browsing - question

  - by Indian

  In our campus we have a leased line connection from a service provider, which has an external IP W.X.Y.Z. This connection is distributed from the server several sub-networks / subnets as follows: Faculty: 172.33....../ 255.255.0.0 Administration: 172.34......./255.255.255.0 Students: 172.35...../255.255.216.0 A student has a laptop with a fixed IP address 172.35.23.123 / 255.255.216.0 where the IP address is on the ethernet port. The gateways for internet access are 172.31.1.1 and 172.31.1.2. Further the student has a wireless port which is inaccessible in the hostel area. The OS of the student is Ubuntu 12.10. The student in the possession of an android phone on which he wishes to install specific software and therefore wishes to activate the internet therein. The student has already attempted the Wireless hotspot solution which works for 12.04 but has not been successful. Various instructions on the internet have helped the student to do the following Installation of dhcp server and hostapd: sudo apt-get install isc-dhcp-server sudo apt-get install hostapd File: /etc/network/interfaces auto lo iface lo inet loopback auto wlan0 iface wlan0 inet static address 10.10.0.1 netmask 255.255.255.0 dns-nameservers 172.31.1.1 172.31.1.2 File: /etc/dhcp/dhcpd.conf subnet 10.10.0.0 netmask 255.255.255.0 { range 10.10.0.2 10.10.0.4; option routers 10.10.0.1; option domain-name-servers 172.31.1.1 172.31.1.2; default-lease-time 6000; max-lease-time 72000; } File: /etc/hostapd/hostapd.conf interface=wlan0 driver=nl80211 ssid=my_hotspot channel=1 hw_mode=g auth_algs=1 wpa=3 wpa_passphrase=1234567890 wpa_key_mgmt=WPA-PSK wpa_pairwise=TKIP CCMP rsn_pairwise=CCMP File: /etc/default/hostapd RUN_DAEMON=”yes” DAEMON_CONF=”/etc/hostapd/hostapd.conf” DAEMON_OPTS=”-dd” File: /etc/default/isc-dhcp-server INTERFACES=”wlan0” File: /etc/rc.local iptables -t nat -A POSTROUTING -s 10.10.0.0/16 -o eth0 -j MASQUERADE exit 0 After all the configuration, the computer is restarted. The student can see that the hotspot named “my_hotspot” is available. The hotspot also awards an address to the android phone. The student will now be able to browse the internet.

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• Chromebook C720 - issue suspending and booting

  - by user72727

  I recently bought an Acer C720 chromebook (Celeron, 2GB RAM, 16GB SSD) with the intention of loading Linux and using it as a cheap development laptop while on my holiday. The installation sort of went ok but initially the trackpad didn't work so I ran a script that mostly fixed that. My current issues are: Booting: it still goes to the chrome "unknown os" white screen - I have to press ctrl L - then escape then 1 then wait for 30 secs while it seems to be searching for something. Then Ubunto loads up fine. Any idea how to fix this? Suspend: if I close the lid of the laptop then it doesn't seem to suspend properly. At least when I open the lid the screen appears to be on but the screen is blank with a cursor. Nothing responds on the keyboard and I have to hold the power down to restart it. The suspend from the top menu has the same issue. Moving windows: I don't have a mouse click button so how do I move windows around the screen? Launcher bar: I've set mine to auto hide (which it does) but what exactly do you have to do to get it back? I just repeatedly jab the mouse at the side of the screen and eventually it pops up. I don't mind starting all over again but obviously a quick fix is preferred ;) Mike Ubunto 14.04.1 LTS Kernel 3.13.0-32-generic PS Sorry for so many questions.

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• Guitar hero clone and music

  - by mm24

  I am an indie game developer and I am doing a game similar to guitar hero. I am using tracks composed by musicians and I contacted them to sing a licensing contract. As is my first indie project I have no idea on how I should deal with the royalties aspect of this because each track as an ISRC code and each time a track is played in public there is a fee to pay to the "local" registration authority. An iPhone game it is downloaded and not played on air (or physically distributed), and hence I think there is a specific legislation for this that specifies how much one should pay. I own some of the tracks composed and for this I think I won't have to pay a royalty (even if the track has an ISRC code) but for other tracks I just have a license "to use". I wonder how a game like Guitar hero can sell on iPhone for as little as 0,99$ and then have "in app purchases" for packs of 3 songs (for about 2 dollars) and make a profit (I imagine they will have to pay a ISRC royalty). Does anyone of you have any idea of this can work or if there is a section in this forum where I can ask this question? I understand is not about coding but I think is about development of a game in the broader sense.

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• Data recovery on Ubuntu 11.10?! (after crashing with Seagate 320GB)

  - by Sam

  Just installed 11.10 last week and decided to transfer iTunes music (from Windows dual boot) to my Seagate 320GB. I left it in, restarted, clicked Ubuntu at the boot screen, and then it froze after a few lines of code! I think I got to 3.7086 or something before I pressed CTRL+ALT+DEL and the system restarted after another few lines of code. I am completely new to Ubuntu so after Googling, I made a live CD with 10.04, the most stable release I've heard, and I'm typing this from there now. However, when I go to mount my partition, only the Windows Vista partition (308GB) is there! It has all my Windows files but my Ubuntu 11.10 ones are nowhere to be found. I need to restore these pictures I transferred from my camera using Shotwell the other day... any help is appreciated! p.s. 11.10 has never crashed on me in my trial week, so I'm guessing it's the Seagate hard drive's fault. However, now I'm running it on 10.04 and it works fine.

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• Team Software Development using Ruby on Rails

  - by Panoy

  I used to work alone on small to medium sized programming projects before and have no experience working in a team environment. Currently, there will be 3 of us in an in-house software development team that is tasked to develop a number of software for an academic institution. We have decided to use the web for the majority of the projects and are planning to choose Ruby on Rails for this and I would like to ask for your inputs, advices and approaches with regards to software development as a team using the RoR web framework. One thing that has really confounded me is how you divide the programming tasks of a project if there are 3 of you that are really doing the coding. It’s obvious that we as developers approach a problem in a modular way and finish it one after another. If the project consists of 3 modules, should each one of us focus on each of those modules? Would it be faster that way? How about if the 3 of us would focus on one module first (that’s what I really prefer). Is using a distributed version control system such as Git the answer to this type of problem? Please don’t forget to put your tips and experiences with regards to team software development. Cheers!

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• Dual boot on Hp Envy Ultrabook

  - by phodu_insaan

  I just bought a HP Envy ultrabook 1002TX. It comes with a Win7 Home basic and a 32GB SSD + 500GB HDD. I started to install ubuntu and in doing so went and deleted all the partitions on my HDD and recreated them the way I wanted. Then when I tried to install ubuntu it didn't recognize my HDD. To solve this i typed dmraid -E -r /dev/sdX where the 'X' was my SSD drive. After this ubuntu can install but windows for some reason does not install. Also the Intel Caching feature is lost and SSD is just sitting and doing nothing. I want to know how to solve this problem. Ideeally I would like to use the SSD for caching, either in windows or ubuntu. How do I get the SSD back to working as an Intel rapid cache? How do I get windows to install properly? It tell me that windows is unable to configure itself to my hardware, and my PC came with windows pre-installed so this is not possible. Sorry for the long question and thanks for your answers! PS: At one time when I booted I pressed Ctrl+i and went to the intel rapid cache menu. I think i screwed up something in here, because only after this the rapid cache stopped working, and each time I booted the PC thought the BIOS was my primary disk.

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• Can I distribute a software with the following permission notice

  - by Parham

  I've recently written a piece of software (without any other contributors) for a company which I part own. I was wondering if I could distribute it with the following permission notice, which is a modified version of the MIT License. Are there any obvious risks if I do distribute with this licence and does it give me the right to reuse the code in other projects? Permission is hereby granted, to any person within CompanyName (the "Company") obtaining a copy of this software and associated documentation files, excluding any third party libraries (the "Software"), to deal with the Software, with limitations restricted to use, copy, modify and merge, the Software may not be published, distributed, sublicensed and/or sold without the explicit permission from AuthorName (the "Author"). This notice doesn't apply to sections of the Software where copyright is held by any persons other than the Author. The Author remains the owner of the Software and may deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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• How to auto-mount a copied encrypted home

  - by LedZ

  How can I auto-mount and use my encrypted home that I copied to another partition on the same hard disk? I'm running Ubuntu 11.10. My encrypted home is on sda1. There I've 2 users: userA and userB. Another partition is sda3 on which I have some other Data. BTW, sda1 is formatted as EXT4, sda3 is formatted as EXT3. I did the following: I logged out from GUI (Gnome) and changed (using Ctrl+Alt+F1) to the shell. From there I logged in, changed to sudo (using sudo -s) . After then I created a new mountpoint (tmp) under /mnt (mkdir /mnt/tmp) mounted /dev/sda3 on that mountpoint /mnt/tmp (mount /dev/sda3 /mnt/tmp) copied my encrypted /home to /mnt/tmp using rsync (rsync --acvxASXH --progress --stats /home/ /mnt/tmp/). After the “copy-procedure” I looked to my “new home” in /mnt/tmp and there I found the following 3 folders: userA, userB, .ecryptfs My structure for /dev/sda3 mounted on /mnt/tmp looks like the following (userB in ecryptfs I've not listed): -userA ¦ +userB ¦ +.ecryptfs ¦ +userA ¦ + auto-mount ¦ + auto-umount ¦ + Private.mnt ¦ + Private.sig ¦ + wrapped-passphrase ¦ + .wrapped-passphrase.recorded ¦ + .Private + (encrypted file_1) + (encrypted file_2) + (encrypted file_n) Now I would like that this copy of the original home-directory should act with the same behavior as the original home-directory means, that it should be auto-mounted at reboot and give me access to my unencrypted files and after logout all my files should be encrypted again. Any suggestions?

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• Nivida driver install

  - by Adham

  tried black listing and every thing i could find on the internet used with root and alt+ctrl+f1 with no solution nvidia-installer log file '/var/log/nvidia-installer.log' creation time: Mon Jun 17 08:35:25 2013 installer version: 319.23 PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin nvidia-installer command line: ./nvidia-installer Using: nvidia-installer ncurses user interface -> License accepted. -> Installing NVIDIA driver version 319.23. -> Running distribution scripts executing: '/usr/lib/nvidia/pre-install'... -> done. -> The distribution-provided pre-install script failed! Continue installation anyway? (Answer: Yes) ERROR: The Nouveau kernel driver is currently in use by your system. This driver is incompatible with the NVIDIA driver, and must be disabled before proceeding. Please consult the NVIDIA driver README and your Linux distribution's documentation for details on how to correctly disable the Nouveau kernel driver. WARNING: One or more modprobe configuration files to disable Nouveau are already present at: /etc/modprobe.d/nvidia-installer-disable-nouveau.conf. Please be sure you have rebooted your system since these files were written. If you have rebooted, then Nouveau may be enabled for other reasons, such as being included in the system initial ramdisk or in your X configuration file. Please consult the NVIDIA driver README and your Linux distribution's documentation for details on how to correctly disable the Nouveau kernel driver. ERROR: Installation has failed. Please see the file '/var/log/nvidia-installer.log' for details. You may find suggestions on fixing installation problems in the README available on the Linux driver download page at www.nvidia.com.

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• How to install Gyachi on ubuntu 12.10

  - by Oguz Can Sertel

  I would like to use Gyachi on ubuntu 12.10. I tried these steps but it doesn't work.. I wanted to compile it myself... but it need some libs... it made me confused... so I gave up sudo add-apt-repository ppa:adilson/experimental sudo apt-get update sudo apt-get install gyachi Thank you for your helps at first command the output: sudo add-apt-repository ppa:adilson/experimental You are about to add the following PPA to your system: Contains packages that are not in the official Debian/Ubuntu repositories and newer versions and snapshots which are not available yet in the repositories. Theses packages are experimental. Use them at your own risk. More info: https://launchpad.net/~adilson/+archive/experimental Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmp3y3i7p/secring.gpg' created gpg: keyring `/tmp/tmp3y3i7p/pubring.gpg' created gpg: requesting key 27B81625 from hkp server keyserver.ubuntu.com gpg: /tmp/tmp3y3i7p/trustdb.gpg: trustdb created gpg: key 27B81625: public key "Launchpad Experimental Packages PPA" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK and after sudo apt-get update; this is (sudo apt-get install gyachi)'s output here is the output: sudo apt-get install gyachi Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gyachi

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• Steps to send patch to Launchpad

  - by Alois Mahdal

  With a Git/Github background and knowing very little about Bazaar VCS, I would like to occasionally report a bug to Launchpad and even send a patch. I'd like to do it in a "proper" way so that it's ready for merging or improvement while not getting in way. I can't seem to find a decent simple How-to suited for my needs. So what I did so far: I have created a Launchpad account, reported the bug, installed Bazaar and setup SSH keys etc. Now if it was Github, I'd fork the repo, clone the forked repo, create a sanely named branch and do the work, commit + push, create a pull request using Github WUI. But it's not Github, and both LP and Bazaar architectures seem quite different from their Github/Git cunterparts. So could a kind soul save me from drowning in tons of documents and complile a straightforward step path, mainly the second part? Possibly including relevant CLI commands when they are needed? Edit: It seems that I should clarify if I'm asking specifically about Ubuntu packages (whatever it means) or Launchpad packages. I don't really care much about distinction between Ubuntu packages and non-Ubuntu packages. Any software could be in Ubuntu today and out of it tomorrow, or vice-versa. The development is what matters much more than distribution. Ao I was assuming that not every single package distributed in Ubuntu is hosted on Launchpad, an "official" or "default" workflow for Launchpad exists (well if all devs can agree on using Bazaar, why couldn't most of them agree on a patching workflow?), so I'm asking about the Launchpad way, not the Ubuntu way. And I chose AU because since the intersection is vast, I guess it's pretty on topic here.

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• Please help restore my crashed launcher/compizconfig

  - by Will

  I have just upgraded from 11.04 to 11.10. Everything worked fine at first, but at one point when I was editing some CompizConfig settings (just something basic like 'number of desktops'), CompizConfig crashed. Then the whole launcher disappeared, along with most of the buttons in the top panel. The shutdown button, calendar, etc. all went, leaving just the tabs from File to Help. Also, windows now have the title and File, Edit..(etc) tabs on 2 separate lines, instead of the new format where hovering over the bar switches which one is visible. I have since been using Ctrl+Alt+T to open a terminal and open applications, shut down, etc, from there. I have typed in the command: unity --reset which has some effect, but the terminal never reaches the end of the task. I've also done apt-get update, which completed fine. Can anyone help me restore the launcher and panel functions?? I am getting most frustrated by the fact that once I have opened Firefox, I can't enter any other commands!

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• Algorithmic problem - quickly finding all #'s where value %x is some given value

  - by Steve B.

  Problem I'm trying to solve, apologies in advance for the length: Given a large number of stored records, each with a unique (String) field S. I'd like to be able to find through an indexed query all records where Hash(S) % N == K for any arbitrary N, K (e.g. given a million strings, find all strings where HashCode(s) % 17 = 5. Is there some way of memoizing this so that we can quickly answer any question of this form without doing the % on every value? The motivation for this is a system of N distributed nodes, where each record has to be assigned to at least one node. The nodes are numbered 0 - (K-1) , and each node has to load up all of the records that match it's number: If we have 3 nodes Node 0 loads all records where Hash % 3 ==0 Node 1 loads all records where Hash % 3 ==1 Node 2 loads all records where Hash % 3 ==2 adding a 4th node, obviously all the assignments have to be recomputed - Node 0 loads all records where Hash % 4 ==0 ... etc I'd like to easily find these records through an indexed query without having to compute the mod individually. The best I've been able to come up with so far: If we take the prime factors of N (p1 * p2 * ... ) if N % M == I then p % M == I % p for all of N's prime factors e.g. 10 nodes : N % 10 == 6 then N % 2 = 0 == 6 %2 N % 5 = 1 == 6 %5 so storing an array of the "%" of N for the first "reasonable" number of primes for my data set should be helpful. For example in the above example we store the hash and the primes HASH PRIMES (array of %2, %3, %5, %7, ... ]) 16 [0 1 1 2 .. ] so looking for N%10 == 6 is equivalent to looking for all values where array[1]==1 and array[2] == 1. However, this breaks at the first prime larger than the highest number I'm storing in the factor table. Is there a better way?

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• New features in SQL Prompt 6.4

  - by Tom Crossman

  We’re pleased to announce a new beta version of SQL Prompt. We’ve been trying out a few new core technologies, and used them to add features and bug fixes suggested by users on the SQL Prompt forum and suggestions forum. You can download the SQL Prompt 6.4 beta here (zip file). Let us know what you think! New features Execute current statement In a query window, you can now execute the SQL statement under your cursor by pressing Shift + F5. For example, if you have a query containing two statements and your cursor is placed on the second statement: When you press Shift + F5, only the second statement is executed:   Insert semicolons You can now use SQL Prompt to automatically insert missing semicolons after each statement in a query. To insert semicolons, go to the SQL Prompt menu and click Insert Semicolons. Alternatively, hold Ctrl and press B then C. BEGIN…END block highlighting When you place your cursor over a BEGIN or END keyword, SQL Prompt now automatically highlights the matching keyword: Rename variables and aliases You can now use SQL Prompt to rename all occurrences of a variable or alias in a query. To rename a variable or alias, place your cursor over an instance of the variable or alias you want to rename and press F2: Improved loading dialog box The database loading dialog box now shows actual progress, and you can cancel loading databases:   Single suggestion improvement SQL Prompt no longer suggests keywords if the keyword has been typed and no other suggestions exist. Performance improvement SQL Prompt now has less impact on Management Studio start up time. What do you think? We want to hear your feedback about the beta. If you have any suggestions, or bugs to report, tell us on the SQL Prompt forum or our suggestions forum.

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• Memory limiting solutions for greedy applications that can crash OS?

  - by Hooked

  I use my computer for scientific programming. It has a healthy 8GB of RAM and 12GB of swap space. Often, as my problems have gotten larger, I exceed all of the available RAM. Rather than crashing (which would be preferred), it seems Ubuntu starts loading everything into swap, including Unity and any open terminals. If I don't catch a run-away program in time, there is nothing I can do but wait - it takes 4-5 minutes to switch to a command prompt eg. Ctrl-Alt-F2 where I can kill the offending process. Since my own stupidity is out of scope of this forum, how can I prevent Ubuntu from crashing via thrashing when I use up all of the available memory from a single offending program? At-home experiment*! Open a terminal, launch python and if you have numpy installed try this: >>> import numpy >>> [numpy.zeros((10**4, 10**4)) for _ in xrange(50)] * Warning: may have adverse effects, monitor the process via iotop or top to kill it in time. If not, I'll see you after your reboot.

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• Why would Java app make RPC call to itself?

  - by amphibient

  I am working with a multithreaded homegrown multi-module app in my new job. We use the the Thrift protocol to communicate RPC calls between different stand-alone applications in a distributed system. One of them listens on multiple ports and I just noticed that it actually makes an RPC call to itself from one thread invoked from one socket it listens to (web service call) to another port within the same app. I verified that it could accomplish the same thing if it just went and directly called the method that the remote procedure ultimately invokes as it is all within the same application, same JVM. To make it even more mysterious, the call is completely synchronous, i.e. no callbacks involved. The first thread totally sits and waits until it makes a call across the wire to itself and comes back. Now, I am perplexed why anybody would do it this way. It seems like calling somebody on the phone that sits in the same room as you do. Can anybody provide an explanation why the developer before me would come up with the above mentioned model? Maybe there is a reason and I am missing something.

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• Xorg becomes unkillable at 3AM

  - by chew socks

  Most nights, some time in the hour of 3AM my xorg process will increase to 100% cpu and gpu load will also increase to 100%. The process also becomes unkillable. I cannot sudo kill -9 it or get back control with sudo service lightdm restart. I also cannot switch to to a tty screen with ctrl + alt + f1. To reboot I have to log in with ssh, but this is not perfect because if I reboot while it is doing this my ZFS pool will fail to mount when it comes back up ( that is where my /home is ). Does anyone have any ideas as to why I can't stop and restart xorg, or even better, know why this is happening? Thanks NOTE: For anyone who comes looking for the same problem. I disabled catalyst AI and made it through the night. I've been up for 1 day 3 hours now. My record for this month is 2 days and 19 hours without a problem. My all time record is 6 days without a crash. I'll post here if it crashes again or I'm able to set a new record.

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• How to Set Up a Hadoop Cluster Using Oracle Solaris (Hands-On Lab)

  - by Orgad Kimchi

  Oracle Technology Network (OTN) published the "How to Set Up a Hadoop Cluster Using Oracle Solaris" OOW 2013 Hands-On Lab. This hands-on lab presents exercises that demonstrate how to set up an Apache Hadoop cluster using Oracle Solaris 11 technologies such as Oracle Solaris Zones, ZFS, and network virtualization. Key topics include the Hadoop Distributed File System (HDFS) and the Hadoop MapReduce programming model. We will also cover the Hadoop installation process and the cluster building blocks: NameNode, a secondary NameNode, and DataNodes. In addition, you will see how you can combine the Oracle Solaris 11 technologies for better scalability and data security, and you will learn how to load data into the Hadoop cluster and run a MapReduce job. Summary of Lab Exercises This hands-on lab consists of 13 exercises covering various Oracle Solaris and Apache Hadoop technologies:     Install Hadoop.     Edit the Hadoop configuration files.     Configure the Network Time Protocol.     Create the virtual network interfaces (VNICs).     Create the NameNode and the secondary NameNode zones.     Set up the DataNode zones.     Configure the NameNode.     Set up SSH.     Format HDFS from the NameNode.     Start the Hadoop cluster.     Run a MapReduce job.     Secure data at rest using ZFS encryption.     Use Oracle Solaris DTrace for performance monitoring.  Read it now

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• No monitor output after fresh install of 11.10 64-bit

  - by James

  I have a machine with a Nvidia 8600GT graphics card and a CRT monitor. Previously, I have only used Windows on it, and the graphics card seems to be working correctly in Windows 7. I booted up and installed Ubuntu 11.10 amd64 from the LiveCD and the whole process worked perfectly. When I tried to boot off the hard disk for the first time, the output to the monitor switched off during the splash screen, and this happens consistently. I can ctrl-alt-f2, so I tried an apt-get upgrade, which didn't help; nor did apt-get install nvidia-current. There is nothing that looks relevant in dmesg. Booting with the nomodeset option has no effect. Following the answers in this similar thread, I tried apt-get purge nvidia-173. Both startx and service lightdm start just say the service is already running. Does anyone know how to find out what the problem is? I was wondering if it is just that Ubuntu is trying to use a resolution that the monitor doesn't support, but I can't find out how to change that from the command line.

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• Enablement 2.0 Get Specialized!

  - by mseika

  Enablement 2.0 Get Specialized! The Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates to get certified. Oracle's Certified Exams go through a rigorous review process called a "beta period". Here are a few advantages of taking a Beta Exam: Certification exams taken during the beta period count towards company Specializations. Most new Certified Specialist Exams have no training requirement. Beta Exams Vouchers are available in limited quantity, so request a voucher today by contacting the Partner Enablement Team and act fast to reserve your test from the list below. FREE Certification Testing Are you attending OPN Exchange @ OpenWorld? Then join us at OPN Specialist Test Fest! October 1st - 4th 2012, Marriott Marquis Hotel Pre-register now! Beta testing period will end on October, 6th, 2012 for the following exams: Oracle E-Business Suite R12 Project Essentials (1Z1-511) Beta testing period will end on October, 13th, 2012 for the following exams: Oracle Hyperion Data Relationship Management Essentials (1Z1-588) Beta testing period will end on November, 17th, 2012 for the following exams: Oracle Global Trade Management 6 Essentials (1Z1-589) Exams Coming Soon in Beta Oracle Fusion Distributed Order Orchestration Essentials Exam (1Z1-469) Take the exam(s) now at a near-by Pearson VUE testing center! Contact Us Please direct any inquiries you may have to the Oracle Partner Enablement team at [email protected] For More Information Oracle Certification Program Beta Exams OPN Certified Specialist Exam Study Guides OPN Certified Specialist FAQ

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