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• Can't update scala on Gentoo

  - by xhochy

  As I wanted to test Scala 2.9.2 on my gentoo system I tried updated the package but ended up with this error. I can't figure out where the problem may be: Calculating dependencies ...... done! >>> Verifying ebuild manifests >>> Jobs: 0 of 1 complete, 1 running Load avg: 0.23, 0.16, 0.20 >>> Emerging (1 of 1) dev-lang/scala-2.9.2 >>> Jobs: 0 of 1 complete, 1 running Load avg: 0.23, 0.16, 0.20 >>> Failed to emerge dev-lang/scala-2.9.2, Log file: >>> Jobs: 0 of 1 complete, 1 running Load avg: 0.23, 0.16, 0.20 >>> '/var/tmp/portage/dev-lang/scala-2.9.2/temp/build.log' >>> Jobs: 0 of 1 complete, 1 running Load avg: 0.23, 0.16, 0.20 >>> Jobs: 0 of 1 complete, 1 running, 1 failed Load avg: 0.23, 0.16, 0.20 >>> Jobs: 0 of 1 complete, 1 failed Load avg: 0.23, 0.16, 0.20 * Package: dev-lang/scala-2.9.2 * Repository: gentoo * Maintainer: [email protected] * USE: amd64 elibc_glibc kernel_linux multilib userland_GNU * FEATURES: sandbox [01m[31;06m!!! ERROR: Couldn't find suitable VM. Possible invalid dependency string. Due to jdk-with-com-sun requiring a target of 1.7 but the virtual machines constrained by virtual/jdk-1.6 and/or this package requiring virtual(s) jdk-with-com-sun[0m * Unable to determine VM for building from dependencies: NV_DEPEND: virtual/jdk:1.6 java-virtuals/jdk-with-com-sun !binary? ( dev-java/ant-contrib:0 ) app-arch/xz-utils >=dev-java/java-config-2.1.9-r1 source? ( app-arch/zip ) >=dev-java/ant-core-1.7.0 dev-java/ant-nodeps >=dev-java/javatoolkit-0.3.0-r2 >=dev-lang/python-2.4 * ERROR: dev-lang/scala-2.9.2 failed (setup phase): * Failed to determine VM for building. * * Call stack: * ebuild.sh, line 93: Called pkg_setup * scala-2.9.2.ebuild, line 43: Called java-pkg-2_pkg_setup * java-pkg-2.eclass, line 53: Called java-pkg_init * java-utils-2.eclass, line 2187: Called java-pkg_switch-vm * java-utils-2.eclass, line 2674: Called die * The specific snippet of code: * die "Failed to determine VM for building." * * If you need support, post the output of `emerge --info '=dev-lang/scala-2.9.2'`, * the complete build log and the output of `emerge -pqv '=dev-lang/scala-2.9.2'`. !!! When you file a bug report, please include the following information: GENTOO_VM= CLASSPATH="" JAVA_HOME="" JAVACFLAGS="" COMPILER="" and of course, the output of emerge --info * The complete build log is located at '/var/tmp/portage/dev-lang/scala-2.9.2/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/dev-lang/scala-2.9.2/temp/die.env'. * Working directory: '/var/tmp/portage/dev-lang/scala-2.9.2' * S: '/var/tmp/portage/dev-lang/scala-2.9.2/work/scala-2.9.2-sources' * Messages for package dev-lang/scala-2.9.2: * Unable to determine VM for building from dependencies: * ERROR: dev-lang/scala-2.9.2 failed (setup phase): * Failed to determine VM for building. * * Call stack: * ebuild.sh, line 93: Called pkg_setup * scala-2.9.2.ebuild, line 43: Called java-pkg-2_pkg_setup * java-pkg-2.eclass, line 53: Called java-pkg_init * java-utils-2.eclass, line 2187: Called java-pkg_switch-vm * java-utils-2.eclass, line 2674: Called die * The specific snippet of code: * die "Failed to determine VM for building." * * If you need support, post the output of `emerge --info '=dev-lang/scala-2.9.2'`, * the complete build log and the output of `emerge -pqv '=dev-lang/scala-2.9.2'`. * The complete build log is located at '/var/tmp/portage/dev-lang/scala-2.9.2/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/dev-lang/scala-2.9.2/temp/die.env'. * Working directory: '/var/tmp/portage/dev-lang/scala-2.9.2' * S: '/var/tmp/portage/dev-lang/scala-2.9.2/work/scala-2.9.2-sources' The following eix output may help: % eix java-virtuals/jdk-with-com-sun [I] java-virtuals/jdk-with-com-sun Available versions: 20111111 {{ELIBC="FreeBSD"}} Installed versions: 20111111(16:08:51 18/04/12)(ELIBC="-FreeBSD") Homepage: http://www.gentoo.org Description: Virtual ebuilds that require internal com.sun classes from a JDK Both virtual jdks 1.6 and 1.7 are installed: % eix virtual/jdk [I] virtual/jdk Available versions: (1.4) ~1.4.2-r1[1] (1.5) 1.5.0 ~1.5.0-r3[1] (1.6) 1.6.0 1.6.0-r1 (1.7) (~)1.7.0 Installed versions: 1.6.0-r1(1.6)(23:22:48 10/11/12) 1.7.0(1.7)(23:21:09 10/11/12) Description: Virtual for JDK [1] "java-overlay" /var/lib/layman/java-overlay

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• Monitoring over Time with Nagios: How?

  - by David

  Nagios in its standard usage monitors with point-in-time checks: either something is - or is not - true. Other tools like SGI's PCP, HP's MeasureWare, and SEC provide monitoring over time - monitoring things like average disk access time over the last five minutes, or other similar items. Is there anything like this for Nagios? I'm already running NDOUtils, which seems like a natural source for such data. I'd like to have something that would monitor and fire off alarms based on a time-based check using historical data. Is there anything like this for Nagios?

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• External monitor image not centered in the screen

  - by kemp

  I'm using Xorg 7.5 on a Radeon HD4870 with the FOSS radeonhd server on my HP 6830s. The laptop has a VGA connector and I attach it to a 37" panasonic plasma TV. It works fine except for a little annoyance: when activated, the TV screen is set to the resolution of 1360x768 (which it reports as being the highest it supports) but all the image is shifted by about 100 pixels to the right. I can't see the leftmost part of the page, and I have a black vertical bar to the right. If I change the resolution to 1024x768 there is no shifting, the image fills the entire screen with no parts hidden, but at this resolution the image is stretched. How can I tune the position on the external monitor so that the image is centered in the screen filling it entirely?

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• Vim configuration slow in Terminal & iTerm2 but not in MacVim

  - by Jey Balachandran

  Ideally, I want to use Vim from Terminal or iTerm2. However, it becomes unbearably slow so I had to resort to using MacVim. There is nothing wrong with MacVim, however my workflow would be much smoother if I used only Terminal/iTerm2. When its slow Loading files, in particular Rails files takes about 1 - 1.5s. Removing rails.vim decreases this time to 0.5 - 1s. In MacVim this is instantaneous. Scrolling through the rows and columns via h, j, k, l. It progressively gets slower the longer I hold down the keys. Eventually, it starts jumping rows. I have my Key Repeat set to Fast and Delay Until Repeat set to Short. After 10 - 15 minutes of usage, using plugins such as ctrlp or Command-T gets very laggy. I'd type a letter, wait 2 - 3s, then type the next. My Setup 11" MacBook Air running Mac OS X Version 10.7.3 (1.6 Ghz Intel Core 2 Duo, 4 GB DDR3) My dotfiles. > vim --version VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Nov 16 2011 16:44:23) MacOS X (unix) version Included patches: 1-333 Huge version without GUI. Features included (+) or not (-): +arabic +autocmd -balloon_eval -browse ++builtin_terms +byte_offset +cindent -clientserver +clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments +conceal +cryptv -cscope +cursorbind +cursorshape +dialog_con +diff +digraphs -dnd -ebcdic +emacs_tags +eval +ex_extra +extra_search +farsi +file_in_path +find_in_path +float +folding -footer +fork() -gettext -hangul_input +iconv +insert_expand +jumplist +keymap +langmap +libcall +linebreak +lispindent +listcmds +localmap -lua +menu +mksession +modify_fname +mouse -mouseshape +mouse_dec -mouse_gpm -mouse_jsbterm +mouse_netterm -mouse_sysmouse +mouse_xterm +multi_byte +multi_lang -mzscheme +netbeans_intg +path_extra -perl +persistent_undo +postscript +printer +profile +python -python3 +quickfix +reltime +rightleft +ruby +scrollbind +signs +smartindent -sniff +startuptime +statusline -sun_workshop +syntax +tag_binary +tag_old_static -tag_any_white -tcl +terminfo +termresponse +textobjects +title -toolbar +user_commands +vertsplit +virtualedit +visual +visualextra +viminfo +vreplace +wildignore +wildmenu +windows +writebackup -X11 -xfontset -xim -xsmp -xterm_clipboard -xterm_save system vimrc file: "$VIM/vimrc" user vimrc file: "$HOME/.vimrc" user exrc file: "$HOME/.exrc" fall-back for $VIM: "/usr/local/Cellar/vim/7.3.333/share/vim" Compilation: /usr/bin/llvm-gcc -c -I. -Iproto -DHAVE_CONFIG_H -DMACOS_X_UNIX -no-cpp-precomp -O3 -march=core2 -msse4.1 -w -pipe -D_FORTIFY_SOURCE=1 Linking: /usr/bin/llvm-gcc -L. -L/usr/local/lib -o vim -lm -lncurses -liconv -framework Cocoa -framework Python -lruby I've tried running without any plugins or syntax highlighting. It opens files a lot faster but still not as fast as MacVim. But the other two problems still exist. Why is my vim configuration slow? How can I improve the speed of my vim configuration within Terminal or iTerm2?

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• Why do some games randomly turn my screen a random solid color?

  - by Emlena.PhD

  When playing some games my computer will randomly have an error that I cannot fix without turning it off and back on again. The screen changes to one solid color, which varies (off the top of my head I can remember seeing solid green, magenta, etc..) and the sound blares a single tone. The sound sometimes briefly restores and I can still hear the game sounds and even hear and still be heard by people in my Mumble channel, but the screen doesn't right itself so I'm still blind. What's more is this happens in some games but not in others. While the game is actually running, not while I'm still in the menu. However, it does happen if I'm afk or idle but the game world is still rendering. Games where the error occurs: League of Legends World of Warcraft Trine The Sims 2 Dungeon Defenders Safe games: games where it has never occurred: Tribes: Ascend Star Wars: the Old Republic Battlefield 3 So relatively older games cause the problem while newer games do not? I cannot predict when it will happen, it just seems random. However, if it happens and I try playing the same game further after restart it does appear to occur more frequently after the first time. But if I switch to a safe game it doesn't continue happening. Both of my RAM sticks appear fine, flipped position or either one on their own and games still run, computer still boots. I would think over-heating, but then why not all games? ALso, sometimes it happens immediately after I start playing, within seconds of the 3D world booting up. I'm looking to upgrade very soon so I want to figure out what component or software is fubar and replace/repair it. Any suggestions or recommendations of tools would be helpful. Below is some system information. Dxdiag does not detect any problems. Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120305-1505) System Manufacturer: Gigabyte Technology Co., Ltd. System Model: EP45-UD3R BIOS: Award Modular BIOS v6.00PG Processor: Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz (2 CPUs), ~3.2GHz Memory: 4096MB RAM DirectX Version: DirectX 11 DxDiag Version: 6.01.7601.17514 64bit Unicode Graphics card name: NVIDIA GeForce GTX 285 Driver Version: 8.17.12.9610 (error has occurred w/several driver versions) Sound: I do not have a sound card, been using motherboard's built in sound)

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• JNDI Datasource definition in Tomcat 6.0

  - by romaintaz

  I want to define a DataSource to an Oracle database on my Tomcat 6.0. So, in conf/server.xml (yes, I know that this DataSource will be available for all the webapps in Tomcat, but it's not a problem here), I've set this Resource: <GlobalNamingResources> <Resource name="hibernate/HibernateDS" auth="Container" type="javax.sql.DataSource" url="jdbc:oracle:thin:@myserver:1542:foo" username="foo" password="bar" driverClassName="oracle.jdbc.OracleDriver" maxActive="50" maxIdle="10" validationQuery="select 1 from dual"/> Then, in the web.xml of my application, I set a resource-ref element: <resource-ref> <description>Hibernate Datasource</description> <res-ref-name>hibernate/HibernateDS</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> Finally, as Hibernate is used to manage the database connection, I have a webapps/mywebapp/WEB-INF/classes/hibernate.cfg.xml that creates a session-factory using the JNDI DataSource: <hibernate-configuration> <session-factory> <property name="connection.datasource">java:comp/env/hibernate/HibernateDS</property> ... However, when I start my Tomcat server, I get an error that says it could not create the INFO [net.sf.hibernate.util.NamingHelper] JNDI InitialContext properties:{} INFO [net.sf.hibernate.connection.DatasourceConnectionProvider] Using datasource: java:comp/env/hibernate/HibernateDS INFO [net.sf.hibernate.transaction.TransactionFactoryFactory] Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory INFO [net.sf.hibernate.transaction.TransactionManagerLookupFactory] No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended) WARN [net.sf.hibernate.cfg.SettingsFactory] Could not obtain connection metadata org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) at net.sf.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:59) at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84) at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1172) ... Caused by: java.lang.NullPointerException at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507) at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476) at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307) at java.sql.DriverManager.getDriver(DriverManager.java:253) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143) ... 11 more Do you have any idea why Hibernate is not able to construct the session-factory? What is wrong in my configuration?

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• Weather Logging Software on Windows Home Server

  - by Cruiser

  I'm looking for some weather logging software that I can run as a Windows Home Server add-in, or as a service on my Home Server, so I don't need to log into my Home Server to log weather data. I have an Oregon Scientific WMR918 weather station, and an HP MediaSmart EX485 Windows Home Server. The two are currently connected through a serial bluetooth adapter, but that shouldn't matter as the computer sees it basically as a serial device. I'm currently using Cumulus to log data and upload to Weather Underground, but it is a regular windows application, so I need to remain logged into my Home Server by RDP in order to run the software (I disconnect, but don't log off so the session remains open). Ideally I would like something to run as a service or WHS add-in, so that it runs all the time without logging in, can log data from my WMR918, and can upload to Weather Underground. Thanks!

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• Windows 2003 Storage Server Hanging on Large File Transfers

  - by user25272

  In one of our offices we have a Dell PowerVault 745N NAS device which acts as the main file server. Its running 32bit Windows 2003 Storage Server SP2 with 3GB RAM. The server holds around 60 users HOME folders, which are mapped via AD. The office clients are a mix of XP SP3, Vista and Windows 7. Occasionally the server will completely hang when transferring large files. When the hang happens the console becomes unresponsive with only the mouse active and blank wallpaper. Sometimes stopping the copy frees the server, sometimes not. The hanging can last around 20 minutes. During this time other servers also become unresponsive with blank wallpaper at the console. If you do manage to get onto another server the taskbar and run commands are unresponsive. This also transcends to the client computers sometimes with explorer crashing. I'm guessing this is due to the HOME folder mapping. Eventually the NAS server with free up and everything will be back to normal. The server is configured as follows: PERC 4/DC DATA 2 - 12 SCSI HDD - RAID5 SHADOWCOPY 2 SCSI HDD - RAID1 CERC SATA DATA 11 4 SATA HDD - RAID5 OS 4 SATA HDD - RAID5 All the drivers and firmware is up to date. I've been through all the diagnostics with Dell and the hardware has come up clean including full HDD tests on the arrays. The server has NOD32 installed as the AV, but the hanging happens when it is uninstalled. There are no errors in the event log when this happens and we don't have any errors logged on any of our ProCurve switches. DNS is fine on the domain and AD from what I can tell is running happily. There are no DFS or NFS shares setup either. All the shares are standard Windows. I've unchecked the allow the computer to turn off this device to save power box under Power Management on the NIC. "Set Link Speed and Duplex to Auto-negotiate 1000 " Increased Receive Descriptors buffer from 256 to 352 (reserves more CPU resource for handling data) I've run network traces using network monitor and have found the following: 417 8.078125 {SMB:192, NbtSS:25, TCP:24, IPv4:23} 192.168.2.244 192.168.5.35 SMB SMB:R; Nt Create Andx - NT Status: System - Error, Code = (52) STATUS_OBJECT_NAME_NOT_FOUND I've tried different cabling; NICs and switch ports all with the same result. Transferring files from other servers on the domain is fine. All I haven't done is run CHKDSK on the drives to look for any file system errors. On the Vista clients I have also run netsh interface tcp set global autotuning=disabled with no result. Could it be that the server has a faulty drive or that the I/O is too much for it to handle? Any ideas why would the hang cause issues with the other servers on the LAN? Many Thanks.

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• CentOS - Add additional hard drive raid arrays on Dell Perc 5/i card

  - by Quanano

  We have a Dell Poweredge 2900 system with Dell Perc 5/i card and 4 SAS hard drives attached, with NTFS partitions on them. We installed CentOS on one raid array on this controller with a different controller and it is working fine. We are now trying to access the drives shown above and they are not being shown in /dev as sdb, etc. sda is the drive that we installed centos on and it has sda1, sda2, sda3, etc. The CDROM has been picked up as well. If I scan for scsi devices then the perc and adaptec controllers are both found. sg0 is the CDROM and sg2 is the centos installed, however I think sg1 is the other drive but I cannot see anyway to mount the partitions, as only the drive is listed in /dev. Thanks. EXTRA INFO fdisk -l: Disk /dev/sda: 72.7 GB, 72746008576 bytes 255 heads, 63 sectors/track, 8844 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x11e3119f Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 8845 70528000 8e Linux LVM Disk /dev/mapper/vg_lal2server-lv_root: 34.4 GB, 34431041536 bytes 255 heads, 63 sectors/track, 4186 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_lal2server-lv_root doesn't contain a valid partition table Disk /dev/mapper/vg_lal2server-lv_swap: 21.1 GB, 21139292160 bytes 255 heads, 63 sectors/track, 2570 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_lal2server-lv_swap doesn't contain a valid partition table Disk /dev/mapper/vg_lal2server-lv_home: 16.6 GB, 16647192576 bytes 255 heads, 63 sectors/track, 2023 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_lal2server-lv_home doesn't contain a valid partition table These are all from the install hdd not the additional hard drives modprobe a320raid FATAL: Module a320raid not found. lsscsi -v: [0:0:0:0] cd/dvd TSSTcorp CDRWDVD TS-H492C DE02 /dev/sr0 dir: /sys/bus/scsi/devices/0:0:0:0 [/sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:0/0:0:0:0] [4:0:10:0] enclosu DP BACKPLANE 1.05 - dir: /sys/bus/scsi/devices/4:0:10:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:01:00.0/0000:02:0e.0/host4/target4:0:10/4:0:10:0] [4:2:0:0] disk DELL PERC 5/i 1.03 /dev/sda dir: /sys/bus/scsi/devices/4:2:0:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:01:00.0/0000:02:0e.0/host4/target4:2:0/4:2:0:0] . lsmod: Module Size Used by fuse 66285 0 des_generic 16604 0 ecb 2209 0 md4 3461 0 nls_utf8 1455 0 cifs 278370 0 autofs4 26888 4 ipt_REJECT 2383 0 ip6t_REJECT 4628 2 nf_conntrack_ipv6 8748 2 nf_defrag_ipv6 12182 1 nf_conntrack_ipv6 xt_state 1492 2 nf_conntrack 79453 2 nf_conntrack_ipv6,xt_state ip6table_filter 2889 1 ip6_tables 19458 1 ip6table_filter ipv6 322029 31 ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6 bnx2 79618 0 ses 6859 0 enclosure 8395 1 ses dcdbas 9219 0 serio_raw 4818 0 sg 30124 0 iTCO_wdt 13662 0 iTCO_vendor_support 3088 1 iTCO_wdt i5000_edac 8867 0 edac_core 46773 3 i5000_edac i5k_amb 5105 0 shpchp 33482 0 ext4 364410 3 mbcache 8144 1 ext4 jbd2 88738 1 ext4 sd_mod 39488 3 crc_t10dif 1541 1 sd_mod sr_mod 16228 0 cdrom 39771 1 sr_mod megaraid_sas 77090 2 aic79xx 129492 0 scsi_transport_spi 26151 1 aic79xx pata_acpi 3701 0 ata_generic 3837 0 ata_piix 22846 0 radeon 1023359 1 ttm 70328 1 radeon drm_kms_helper 33236 1 radeon drm 230675 3 radeon,ttm,drm_kms_helper i2c_algo_bit 5762 1 radeon i2c_core 31276 4 radeon,drm_kms_helper,drm,i2c_algo_bit dm_mirror 14101 0 dm_region_hash 12170 1 dm_mirror dm_log 10122 2 dm_mirror,dm_region_hash dm_mod 81500 11 dm_mirror,dm_log blkid: /dev/sda1: UUID="bc4777d9-ae2c-4c58-96ea-cedb342b8338" TYPE="ext4" /dev/sda2: UUID="j2wRZr-Mlko-QWBR-BndC-V2uN-vdhO-iKCuYu" TYPE="LVM2_member" /dev/mapper/vg_lal2server-lv_root: UUID="9238208a-1daf-4c3c-aa9b-469f0387ebee" TYPE="ext4" /dev/mapper/vg_lal2server-lv_swap: UUID="dbefb39c-5871-4bc9-b767-1ef18f12bd3d" TYPE="swap" /dev/mapper/vg_lal2server-lv_home: UUID="ec698993-08b7-443e-84f0-9f9cb31c5da8" TYPE="ext4" dmesg shows: megaraid_sas: fw state:c0000000 megasas: fwstate:c0000000, dis_OCR=0 scsi2 : LSI SAS based MegaRAID driver scsi 2:0:0:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5 scsi 2:0:1:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5 scsi 2:0:2:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5 scsi 2:0:3:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5 scsi 2:0:4:0: Direct-Access HITACHI HUS154545VLS300 D590 PQ: 0 ANSI: 5 scsi 2:0:5:0: Direct-Access HITACHI HUS154545VLS300 D590 PQ: 0 ANSI: 5 scsi 2:0:8:0: Direct-Access FUJITSU MBA3073RC D305 PQ: 0 ANSI: 5 scsi 2:0:9:0: Direct-Access FUJITSU MBA3073RC D305 PQ: 0 ANSI: 5 i.e. the 3 RAID Arrays Seagate Hitatchi and Fujitsu hard drives respectively. FURTHER UPDATE I have installed the megaraid storage manager console and connected to the server. It appears that the two CentOS installation hard drives are OK. The other 6 drives, one raid array of 4 and one raid array of 2 disks. The other drives are listed as (Foreign) Unconfigured Good.

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• About the External Graphics Card and CPU usage

  - by Balaji

  Hi, We are Rendering 16 live Streams at our client machine through one of our applications and the resolution of the video streams are as 4CIF/MPEG4/25FPS/4000Kbits. The configuration fo the client machine is below. HP Desktop Machine: Microsoft Windows XP Intel (R) Core2 Duo CPU E8400 @ 3.00 GHz 2.99 GHz, 1.94 GB of RAM Intel (R) Q45/Q43 Series Express Chipset (Inbuild) The CPU usage of the machine peaks 99% for 16 straems. After some discussion, we had decided to install external graphics card to reduce the CPU usage. So that, we have tried following graphics cards. NVIDIA Quadro NVS 440 - 128 MB Radeon HD 4350 - 512 MB GDDR2 Redeon HD 4350 - 1GB DDR2 ASUS EAH 4350 Silent 1GB DDR2 But the performance wise no difference, even worst. So, what is the pupuse of these external graphics cards? Really it will reduce the CPU usage? What parameters have to check, if we want to reduce the CPU usage? Please do the needful as soon as possible. Regards Balaji

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• Capture RTSP stream from IP Camera and store

  - by Keerthi

  I've got a few IP Cameras which output an RTSP (h264 mpeg4) stream. Hitting the URL locally via VLC: rtsp://192.168.0.21:554/mpeg4 I can stream the camera and dump to disk (on my desktop). I'd like to however store these files on my NAS (FreeNAS). I was looking at ways to capture the RTSP stream and dump them to disk but I'm unable to find anything. Is it possible to capture the stream on FreeBSD or Linux (RaspberryPi) and dump the streamed content to a disk local to Linux or FreeBSD - preferably every 30minutes? EDIT: The NAS is headless (HP N55L or something) and the RaspberryPi's are headless too. I've already looked into ZoneMinder but need something small. I was hoping maybe using Motion to detect motion on the stream but that will come later.

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• load-causing processes disappearing from "top" ps -o pcpu shows bogus numbers

  - by Alec Matusis

  I administer a large number of servers, and I have this problem only with Ubuntu 10.04 LTS: I run a server under normal load (say load average 3.0 on an 8-core server). The "top" command shows processes taking certain % of CPU that cause this load average: say PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 11008 mysql 20 0 25.9g 22g 5496 S 67 76.0 643539:38 mysqld ps -o pcpu,pid -p11008 %CPU PID 53.1 11008 , everything is consistent. The all of the sudden, the process causing the load average disappears from "top", but the process continues to run normally (albeit with a slight performance decrease), and the system load average becomes somewhat higher. The output of ps -o pcpu becomes bogus: # ps -o pcpu,pid -p11008 %CPU PID 317910278 1587 This happened to at least 5 different severs (different brand new IBM System X hardware), each running different software: one httpd 2.2, one mysqld 5.1, and one Twisted Python TCP servers. Each time the kernel was between 2.6.32-32-server and 2.6.32-40-server. I updated some machines to 2.6.32-41-server, and it has not happened on those yet, but the bug is rare (once every 60 days or so). This is from an affected machine: top - 10:39:06 up 73 days, 17:57, 3 users, load average: 6.62, 5.60, 5.34 Tasks: 207 total, 2 running, 205 sleeping, 0 stopped, 0 zombie Cpu(s): 11.4%us, 18.0%sy, 0.0%ni, 66.3%id, 4.3%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 74341464k total, 71985004k used, 2356460k free, 236456k buffers Swap: 3906552k total, 328k used, 3906224k free, 24838212k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 805 root 20 0 0 0 0 S 3 0.0 1493:09 fct0-worker 982 root 20 0 0 0 0 S 1 0.0 111:35.05 fioa-data-groom 914 root 20 0 0 0 0 S 0 0.0 884:42.71 fct1-worker 1068 root 20 0 19364 1496 1060 R 0 0.0 0:00.02 top Nothing causing high load is showing on top, but I have two highly loaded mysqld instances on it, that suddenly show crazy %CPU: #ps -o pcpu,pid,cmd -p1587 %CPU PID CMD 317713124 1587 /nail/encap/mysql-5.1.60/libexec/mysqld and #ps -o pcpu,pid,cmd -p1624 %CPU PID CMD 2802 1624 /nail/encap/mysql-5.1.60/libexec/mysqld Here are the numbers from # cat /proc/1587/stat 1587 (mysqld) S 1212 1088 1088 0 -1 4202752 14307313 0 162 0 85773299069 4611685932654088833 0 0 20 0 52 0 3549 27255418880 5483524 18446744073709551615 4194304 11111617 140733749236976 140733749235984 8858659 0 552967 4102 26345 18446744073709551615 0 0 17 5 0 0 0 0 0 the 14th and 15th numbers according to man proc are supposed to be utime %lu Amount of time that this process has been scheduled in user mode, measured in clock ticks (divide by sysconf(_SC_CLK_TCK). This includes guest time, guest_time (time spent running a virtual CPU, see below), so that applications that are not aware of the guest time field do not lose that time from their calculations. stime %lu Amount of time that this process has been scheduled in kernel mode, measured in clock ticks (divide by sysconf(_SC_CLK_TCK). On a normal server, these numbers are advancing, every time I check the /proc/PID/stat. On a buggy server, these numbers are stuck at a ridiculously high value like 4611685932654088833, and it's not changing. Has anyone encountered this bug?

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• Windows 7 trying to turn off UAC every time Windows starts

  - by Mehper C. Palavuzlar

  I have strange problem on my HP laptop. This began to happen recently. Whenever I start my machine, Windows 7 Action Center displays the following warning: You need to restart your computer for UAC to be turned off. I never disable UAC, but obviously some process or virus (I'm not sure, only guessing) causes this. As soon as I get this warning, I head for the UAC settings, and re-enable UAC to dismiss this warning. This is a bothersome situation as I really don't know what causes the problem. I have run a full scan on the computer for any probable virus activity, but TrendMicro OfficeScan said that no viruses have been found. There are no other strange incidents on the machine. Everthing works fine except this bizarre incident. How can I learn what process is trying to turn off UAC? What way should I follow to overcome this problem?

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• My Tablet PC has a jog dial (typically used for scrolling up and down) but it does not work by defau

  - by techtechmo

  I have an HP Compaq TC4400 and I recently was able to make most of the Tablet PC functions work in Ubuntu 9.10. (The step-by-step guide can be found in my blog.) Unfortunately I have yet to make the jog dial work. This would be particularly useful for scrolling up and down websites and documents when the TC4400 is in slate mode (with no access to the keyboard). I would be much obliged if anybody could tell me: How to find out the input button/key assignment that Ubuntu 9.10 has for jog-up and jog-down; How to assign jog-up to scroll up (D-pad key UP, or PAGE UP) and jog-down to scroll down (D-Pad key DOWN, or PAGE DOWN). I am using xbindkeys to assign different shortcuts to the quick launch buttons, perhaps I could use the same program for the jog dial? I would have done that, except I do not know how to find the proper button/key assignment for xbindkeys to use. Thanks in advance!

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• Increase performance of Samsung 830 256GB SSD

  - by Robert Koritnik

  I have a Samsung 830 SSD in my notebook connected to a SATA interface. This is a rather old HP notebook nc8430 which means SATA is SATA I and not II or even III that disk supports. But SATA I still supports speeds up to 150MB/s so I expected at least double values as per image below. CrystalDiskMark shows rather slow performance: I've been using this SSD for over a year now and I would like to know what to do to make it blazingly fast as other reports say it should be? Edit As suggested I'm adding AS SSD screenshot of the test. And Samsung Magician's benchmark which is likely biased...

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• How to get pen input to draw?

  - by Cameron J

  I just got a crappy little Hyundai pen input module To use on a normal Windows 7 HP laptop, it works quite well with the Hyundai software, but that's in Chinese, and the input only stays on the screen for a second. When I try to use it in Paint, it just draws a dot, and switches back to an unclicked state, similarly, it's impossible to move a window. Is there ant way I can keep the click held down when the pen is touching the pad in order to draw, or is there any third party software anyone knows of that can do this?

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• How to verify if a clean windows 7 install was done or an upgrade over vista was what the tech did?

  - by Melody

  I'd like to know if the install was truly done as a clean Windows 7 or If the windows 7 was installed over the vista as an upgrade - 32 bit and ultimate verstion? I noticed hp game stuff (wild tanget or something ) during an virus scan and it was not suppose to be in a clean install...so now I'm wondering how to verify what kind of install Really happened/ Any help? I'd appreaciate knowing how to know the difference, if I was led to believe something that was not true...I paid for a clean install. Did I get that or not is my concern Thank you so much Melody

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• Hot-swap drive got new name, can I change it on-the-fly?

  - by T.J. Crowder

  One of the HDDs in my server's RAID config failed, so I took it out of the array and had the data center hot-swap it. They've done that, but now the new drive is /dev/sdc rather than /dev/sda. I suspect — correct me if I'm wrong — that if I reboot the server, it will be /dev/sda again, so I'm hesitant to add it back to the array as /dev/sdc because I don't want to lay a trap for myself to fall into on the next reboot. I'd just as soon not reboot the server if I don't need to (if I do need to, well, too bad for me). Is there a way I can change the device name from /dev/sdc to /dev/sda without rebooting? This is on Ubuntu 10.04 LTS. It's an md array ("Linux Software RAID"), where currently one of the devices (there are a couple of them) looks like this ("degraded" because I've removed the old /dev/sda from it): # mdadm --detail /dev/md0 /dev/md0: Version : 00.90.03 Creation Time : Sun Oct 11 21:07:54 2009 Raid Level : raid1 Array Size : 97536 (95.27 MiB 99.88 MB) Used Dev Size : 97536 (95.27 MiB 99.88 MB) Raid Devices : 2 Total Devices : 1 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Thu Jun 30 09:31:16 2011 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 0 Spare Devices : 0 UUID : 496be7a5:ab9177ed:7792c71e:7dc17aa4 Events : 0.112 Number Major Minor RaidDevice State 0 8 17 0 active sync /dev/sdb1 1 0 0 1 removed Thanks, Update: Reading through the kernel md documentation, I suspect that if the name changes on reboot, it won't matter. (Good design, that.) Here's why: Boot time autodetection of RAID arrays When md is compiled into the kernel (not as module), partitions of type 0xfd are scanned and automatically assembled into RAID arrays. This autodetection may be suppressed with the kernel parameter "raid=noautodetect". As of kernel 2.6.9, only drives with a type 0 superblock can be autodetected and run at boot time. The kernel parameter "raid=partitionable" (or "raid=part") means that all auto-detected arrays are assembled as partitionable. I do have md compiled into the kernel, so I'm rebuilding the array now and will do the reboot to see what happens. Even if it works, the above doesn't answer the question I actually asked, so unless someone comes along and answers that question in the meantime (I'd be interested, even if it's not necessary for what I'm doing this very moment), I'll just delete the question to keep noise down.

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• Seasgate GoFlex NAS + Horrible Speed = Bad Experience

  - by Jon H

  I am having issues with transfer speeds from my desktop PC to my NAS. I have my NAS hooked up to a Gigabit Gateway as well as my Desktop with Cat 5e. I see up to 4.0 MB/Second Transfer Rates, the normal is about 2.5 MB/Seconds. There is 3 Partitions on my NAS, Public, Private, Backup. When I transfer from Private to Public I see the speeds above. If its under the same partition almost instant. I was wondering if the speeds I am seeing is in due to my Computer or the NAS. I was looking into building my own Media Server in due to these horrible speeds. Is their anything I can do in the mean time to speed this up? Motherboard = M3970AM-HP (Angelica) Processor = AMD FX 6100 Ram = 10GB PC3-10600 MB/sec Hard Drive (1) = 1.5TB SATA 3.0GB 5400RPM Hard Drive (2) = 120GB SATA SSD NAS = Seagate 3TB Go Flex Home Connection (1) = 1000 Base T Connection (2) = Wireless N

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• Regarding the battery of a new laptop [closed]

  - by Majed

  Possible Duplicate: Is it better to use a laptop on battery or on AC power? I bought a new laptop from HP. I am not sure if I should remove the battery while I am working on my laptop or not. What is better for my laptop battery, to keep it while the laptop is plugged in or to remove it? or to charge it and then pull out the plug and when the battery is flat then plug it again? I use my laptop alot (at home and sometimes at work as well).

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• JNDI Datasource definition in Tomcat 6.0

  - by romaintaz

  Hi all, I want to define a DataSource to an Oracle database on my Tomcat 6.0. So, in conf/server.xml (yes, I know that this DataSource will be available for all the webapps in Tomcat, but it's not a problem here), I've set this Resource: <GlobalNamingResources> <Resource name="hibernate/HibernateDS" auth="Container" type="javax.sql.DataSource" url="jdbc:oracle:thin:@myserver:1542:foo" username="foo" password="bar" driverClassName="oracle.jdbc.OracleDriver" maxActive="50" maxIdle="10" validationQuery="select 1 from dual"/> Then, in the web.xml of my application, I set a resource-ref element: <resource-ref> <description>Hibernate Datasource</description> <res-ref-name>hibernate/HibernateDS</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> Finally, as Hibernate is used to manage the database connection, I have a webapps/mywebapp/WEB-INF/classes/hibernate.cfg.xml that creates a session-factory using the JNDI DataSource: <hibernate-configuration> <session-factory> <property name="connection.datasource">java:comp/env/hibernate/HibernateDS</property> ... However, when I start my Tomcat server, I get an error that says it could not create the INFO [net.sf.hibernate.util.NamingHelper] JNDI InitialContext properties:{} INFO [net.sf.hibernate.connection.DatasourceConnectionProvider] Using datasource: java:comp/env/hibernate/HibernateDS INFO [net.sf.hibernate.transaction.TransactionFactoryFactory] Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory INFO [net.sf.hibernate.transaction.TransactionManagerLookupFactory] No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended) WARN [net.sf.hibernate.cfg.SettingsFactory] Could not obtain connection metadata org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) at net.sf.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:59) at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84) at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1172) ... Caused by: java.lang.NullPointerException at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507) at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476) at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307) at java.sql.DriverManager.getDriver(DriverManager.java:253) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143) ... 11 more Do you have any idea why Hibernate is not able to construct the session-factory? What is wrong in my configuration?

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• About the External Graphics Card and CPU usage

  - by Balaji

  We are Rendering 16 live Streams at our client machine through one of our applications and the resolution of the video streams are as 4CIF/MPEG4/25FPS/4000Kbits. The configuration of the client machine is below. HP Desktop Machine: Microsoft Windows XP Intel (R) Core2 Duo CPU E8400 @ 3.00 GHz 2.99 GHz, 1.94 GB of RAM Intel (R) Q45/Q43 Series Express Chipset (Inbuild) The CPU usage of the machine peaks 99% for 16 streams. After some discussion, we had decided to install external graphics card to reduce the CPU usage. So that, we have tried following graphics cards. NVIDIA Quadro NVS 440 - 128 MB Radeon HD 4350 - 512 MB GDDR2 Redeon HD 4350 - 1GB DDR2 ASUS EAH 4350 Silent 1GB DDR2 But the performance wise there has been no difference - even a drop in performance. So, what is the purpose of these external graphics cards? Really it will reduce the CPU usage? What parameters have to check, if we want to reduce the CPU usage?

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• Is a ext3 Linux filesystem byte order independent

  - by Lothar

  I have a good old HP-C3700 Workstation with PA-RISC CPU here that I would like to use as a subversion server for a very large repository. I just worry what happens if the workstation dies (everybody who knows this computer knows that it is running like an Abrams tank and unlikely to happen in the next decade). I'm using Debian Linux on this system. If the mainboard dies can I just plug the SCSI drive into a PC and read the files from a normal Intel Linux PC? Which software RAID levels would be safe?

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• Wake computer from sleep/standby without BIOS support for WOL?

  - by jjeaton

  Just bought a new home server and the nice folks at HP disabled the Wake-On-Lan feature in my motherboard. Are there any other options for waking the computer from Sleep/Standby mode? I'd like to take advantage of power savings wherever I can. I realize that I won't be able to wake it from shutdown, short of putting together some Rube Goldberg machine. EDIT: I'd like to be able to wake the machine on demand, remotely. So I can then RDP into it, or access files, etc.

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• Scripted printer configuration changes

  - by David Steven

  I've got about a dozen Windows XP machines that I need to make a couple specific printer configuration changes to. The printer is "virtual" printer for an electronic delivery service. I'd like to not have to visit each machine individually. I already have the means to execute commands remotely on the machines, I just can't seem to find away to adjust these settings via command line or script. Specifically I need to be able to make the following changes: 1) As an admin user: - Device Settings - Font Substitution Table/Courier New - Change to "Courier" 2) As a specific* user: - Printer Preferences - Paper/Quality - Advanced - Change Graphic/Print Quality to "600 x 600" - Change Document Options/Printer Features/Graphics Mode to "HP-GL/2" *This change is a per user configuration, unless there's some way to make it once. In this situation I only really need it for a specific (different) user on each machine.

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