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  • How do I select column(s) by their "numeric" position in a table?

    - by DulcimerDude
    I am trying to select columns by their "x" position in the table. DBI my $example = $hookup->prepare(qq{SELECT This,That,Condition,"I also want COLUMN-10" FROM tbl LIMIT ? ?}); ###column_number=10 ordinal_position?? $example->execute('2','10') or die "Did not execute"; Is this possible or do I need to run another single select to just that column? One problem I encountered was with a col named "Condition". For some reason, when I tried to select Condition the execute would die. I never attempted but, What if the column name was SELECT? Another note is the table is 75 cols wide and I only need 50 of them. The Col names are pretty verbose so, I would like to just call them by their "position". This would also allow the col names to be changed in the future without having to change the select statement. I am quite the newbie so please explain any answers down to my level. Thanks for any assistance..

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  • Peoplesoft queries - performance

    - by DBa
    Hi, I'm facing a problem with PeopleSoft queries (using Oracle backend database): when a rather complex query involving multiple records is set off by a user, PS does an enforced join of security records, thus producing SQL like this: select .... from ps_job a, PS_EMPL_SRCQRY a1, ps_table2 b, ps_sec_rcd2 b1, ps_table3 c, ps_sec_rcd3 c1 where (...security joins a-a1, b-b1, c-c1...) and (...joins of a, b and c...) and a.setid_dept = 'XYZ'; (let's assume the last condition has a high selectivity and there is an index on the column) Obviously, due to the arrangement of the conditions, first a huge join is created, written to the temp segment, and when the last condition is finally applied, only a small subset is selected. A query formulated in this way is very likely to hit the preset timeout of the APPSRV, and even of the QRYSRV. When writing the query manually, I would rather move the most selective condition to the start, thus limiting the amount of the data being handled, to a considerable level. Any ideas on how to make PS behave like this? Actually, already rewriting "Oracle-styled" SQL to ANSI SQL seems to accelerate the queries - however, PS writes Oracle-style queries... Thanks in advance DBa

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  • Install MegaCli to Monitor Perc 5/i in Nexentastor 3

    - by Peter Valadez
    I have a Dell 2950 with a Perc 5/i Raid controller that we've already installed Nexentastor 3 Community Edition on. We setup a raid-10 array that and put a ZFS pool on top of the hardware. As I understand, in this configuration ZFS/Nexentastor will not be able to tell when a disk fails in the array. Obviously, this is not optimal. Since the Dell Perc 5/i controller is a rebranded LSI controller, you should be able to use the MegaCli utility to manage the array and monitor its condition. I had seen in a separate forum that the Perc 5/i is very similar to the LSI MegaRAID 8480E, so I tried installing the MegaCli utility at the link below. However, I have not been able to successfully install the utility. http://www.lsi.com/support/products/Pages/MegaRAIDSAS8480E.aspx Here is what happened when I tried to install MegaCli: root@Nexenta2:/files# pkgadd -d MegaCli.pkg Warning: unable to relocate '$BASEDIR' mv: cannot move `solmegacli-8.02.16/' to a subdirectory of itself, `solmegacli-8.02.16//var/lib/dpkg/alien/solmegacli/reloc/solmegacli-8.02.16' mv: cannot move `solmegacli-8.02.16/' to a subdirectory of itself, `solmegacli-8.02.16//opt/solmegacli-8.02.16' 822-date: warning: This program is deprecated. Please use 'date -R' instead. 822-date: warning: This program is deprecated. Please use 'date -R' instead. solmegacli_8.02.16-1_all.deb generated (Reading database ... 41397 files and directories currently installed.) Preparing to replace solmegacli 8.02.16-1 (using solmegacli_8.02.16-1_all.deb) ... Unpacking replacement solmegacli ... Setting up solmegacli (8.02.16-1) ... In /var/logs/dpkg.log: 2012-03-23 20:40:19 status unpacked solmegacli 8.02.16-1 2012-03-23 20:40:19 configure solmegacli 8.02.16-1 8.02.16-1 2012-03-23 20:40:19 status unpacked solmegacli 8.02.16-1 2012-03-23 20:40:19 status half-configured solmegacli 8.02.16-1 2012-03-23 20:40:19 status installed solmegacli 8.02.16-1 So... I've got three questions: Is it possible to install and use MegaCli in Nexentastor 3? If so, how can I install MegaCli on Nexentastor 3? Suggestions welcome!!! If not, is there a better way to monitor the condition of the Perc 5/i hardware raid? Our 2950 does have a DRAC card, so can I use that to monitor the raid condition?

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  • Windows XP update not working

    - by Josh
    I have a problem with XP updating. It hangs when I try to search for updates on the website. But the automatic updates still work. And it's running IE6, so I'm trying to update to IE8, hoping that will fix the problems with the website. But when installing IE8 it just hangs at Installing Internet Explorer 8 for Windows XP And if I try to install it manually, it hangs when installing the updates for IE8. So looking at these logs, is there anything going wrong with the update process? Here is the end of ie8_main.log: 00:00.547: Started: 2012/09/15 (Y/M/D) 08:14:31.046 (local) 00:00.719: Time Format in this log: MM:ss.mmm (minutes:seconds.milliseconds) 00:00.781: Command line: c:\cac6f883a91a15abdac3e9\update\iesetup.exe /wu-silent 00:00.828: INFO: Checking version for c:\cac6f883a91a15abdac3e9\update\iesetup.exe: 8.0.6001.18702 00:01.047: INFO: Acquired Package Installer Mutex 00:01.078: INFO: Operating System: Windows Workstation: 5.1.2600 (Service Pack 3) 00:01.328: ERROR: Couldn't read value: 'LIPPackage' from [Version] section in update.inf 00:01.359: INFO: Checking Prerequisites 00:01.391: INFO: Prerequisites Satisfied: Yes 00:01.484: INFO: Checking version for C:\Program Files\Internet Explorer\iexplore.exe: 6.0.2900.5512 00:01.516: INFO: C:\Program Files\Internet Explorer\iexplore.exe version: 6.0.2900.5512 00:01.562: INFO: Checking if iexplore.exe's current version is between 8.0.6001.0... 00:01.594: INFO: ...and 8.1.0.0... 00:01.625: INFO: Maximum version on which to run IEAK branding is: 8.1.0.0... 00:01.656: INFO: iexplore.exe version check success. Install can proceed. 00:01.703: INFO: Checking version for C:\Program Files\Internet Explorer\iexplore.exe: 6.0.2900.5512 00:01.719: INFO: Checking version for C:\WINDOWS\system32\mshtml.dll: 6.0.2900.6266 00:01.750: INFO: Checking version for C:\WINDOWS\system32\wininet.dll: 6.0.2900.6254 00:01.906: INFO: EULA not shown in passive or quiet mode. 00:01.984: INFO: Skip directly to Options page. 00:02.078: INFO: |PreInstall >>> CPageProgress::DlgProc: Exiting Phase PH_NONE 00:02.109: INFO: |PreInstall >>> CPageProgress::_ChangeState: Original Phase: 0 00:02.141: INFO: |Initialize >>> CPageProgress::_UpdateDisplay: Actual Phase: 1 00:02.187: INFO: |Initialize >>> >[BEGIN]------------------------------ 00:02.219: INFO: |Initialize >>> CPageProgress::_UpdateDisplay: Actual Phase: 1 00:02.250: INFO: |Initialize >>> SKIP[FALSE]>>Looking for skip clauses 00:02.281: INFO: |Initialize >>> SKIP[FALSE]>>Result: RUNNING This Phase 00:02.312: INFO: |Initialize >>> Calculating bytes needed to install. 00:02.375: INFO: |Initialize >>> Diskspace Required: 151918308 00:02.422: INFO: |Initialize >>> Diskspace Available to user: 223816298496 00:02.453: INFO: WindowsUpdate>>CWindowsUpdateMgr::Initialize: CoCreateInstance.CLSID_UpdateSession: HResult 0x00000000 00:02.484: INFO: WindowsUpdate>>CWindowsUpdateMgr::Initialize: PutClientApplicationID: HResult 0x00000000 00:02.516: INFO: WindowsUpdate>>CWindowsUpdateMgr::Initialize: CreateUpdateSearcher: HResult 0x00000000 00:02.547: INFO: WindowsUpdate>>CWindowsUpdateMgr::Initialize: CreateUpdateDownloader: HResult 0x00000000 00:02.594: INFO: WindowsUpdate>>CWindowsUpdateMgr::Initialize: CreateUpdateInstaller: HResult 0x00000000 00:02.625: INFO: WindowsUpdate>>WindowsUpdateMgr::Initialize: State Change: SS_INITIALIZED. 00:02.656: INFO: |Initialize >>> CStateInitialize::OnInitialize: Windows Update Manager Initialization Result: 0x00000000 00:02.687: INFO: |Initialize >>> CInstallationState::_ExitState: Preparing to Leave State. 00:02.719: INFO: |Initialize >>> CInstallationState::_ExitState: Setting Progress 100. 00:02.766: INFO: |Initialize >>> CInstallationState::_SetProgress: Post Set Progress Message Succeeded. 00:02.797: INFO: |Initialize >>> CInstallationState::_ExitState: Posting Exit Phase Message. 00:02.828: INFO: |Initialize >>> CInstallationState::_ExitState: Post Exit Phase Message Succeeded. 00:02.859: INFO: |Initialize >>> CPageProgress::DlgProc: Received WM_PR_SETPROGRESS, 64, 0 00:02.891: INFO: |Initialize >>> CPageProgress::_UpdateDisplay: Actual Phase: 1 00:02.953: INFO: |Initialize >>> CPageProgress::DlgProc: Received WM_PR_EXITPHASE, 0, 0 00:02.984: INFO: |Initialize >>> CPageProgress::_UpdateDisplay: Actual Phase: 1 00:03.016: INFO: |Initialize >>> <[END]-------------------------------- 00:03.047: INFO: |Initialize >>> CPageProgress::_ChangeState: Original Phase: 1 00:03.078: INFO: |Uninstall Prev. >>> >[BEGIN]------------------------------ 00:03.109: INFO: |Uninstall Prev. >>> CPageProgress::_UpdateDisplay: Actual Phase: 2 00:03.156: INFO: |Uninstall Prev. >>> SKIP[FALSE]>>Looking for skip clauses 00:03.187: INFO: |Uninstall Prev. >>> SKIP[FALSE]>> Adding [FALSE] Condition: !_psdStateData->GetIsInitSuccessful() 00:03.219: INFO: |Uninstall Prev. >>> SKIP[FALSE]>> Adding [TRUE ] Condition: !g_pApp->GetState()->AreWeDoingUninstall() 00:03.250: INFO: |Uninstall Prev. >>> SKIP[TRUE ]>>Result: SKIPPING This Phase 00:03.281: INFO: |Uninstall Prev. >>> CInstallationState::_ExitState: Preparing to Leave State. 00:03.312: INFO: |Uninstall Prev. >>> CInstallationState::_ExitState: Setting Progress 100. 00:03.344: INFO: |Uninstall Prev. >>> CInstallationState::_SetProgress: Post Set Progress Message Succeeded. 00:03.375: INFO: |Uninstall Prev. >>> CInstallationState::_ExitState: Posting Exit Phase Message. 00:03.391: INFO: |Uninstall Prev. >>> CInstallationState::_ExitState: Post Exit Phase Message Succeeded. 00:03.437: INFO: |Uninstall Prev. >>> CPageProgress::DlgProc: Received WM_PR_SETPROGRESS, 64, 0 00:03.469: INFO: |Uninstall Prev. >>> CPageProgress::_UpdateDisplay: Actual Phase: 2 00:03.500: INFO: |Uninstall Prev. >>> CPageProgress::DlgProc: Received WM_PR_EXITPHASE, 0, 0 00:03.531: INFO: |Uninstall Prev. >>> CPageProgress::_UpdateDisplay: Actual Phase: 2 00:03.562: INFO: |Uninstall Prev. >>> <[END]-------------------------------- 00:03.594: INFO: |Uninstall Prev. >>> CPageProgress::_ChangeState: Original Phase: 2 00:03.625: INFO: |WU Download >>> >[BEGIN]------------------------------ 00:03.656: INFO: |WU Download >>> CPageProgress::_UpdateDisplay: Actual Phase: 3 00:03.703: INFO: |WU Download >>> SKIP[FALSE]>>Looking for skip clauses 00:03.734: INFO: |WU Download >>> SKIP[FALSE]>> Adding [FALSE] Condition: !_psdStateData->GetIsInitSuccessful() 00:03.766: INFO: |WU Download >>> SKIP[FALSE]>> Adding [FALSE] Condition: !g_pApp->GetState()->GetOptShouldUpdate() 00:03.781: INFO: |WU Download >>> SKIP[FALSE]>> Adding [FALSE] Condition: g_pApp->GetState()->GetOptIEAKMode()==IEAK_BRANDING 00:03.812: INFO: |WU Download >>> SKIP[FALSE]>> Adding [FALSE] Condition: g_pApp->GetState()->AreWeDoingUninstall() 00:03.859: INFO: |WU Download >>> SKIP[FALSE]>>Result: RUNNING This Phase 00:03.891: INFO: Setting Windows Update Registry Keys: LookingForUpdates=0x00 - ForcePostUpdateDownload=0x00 - ForcePostUpdateInstall=0x00 00:03.953: INFO: Setting Windows Update Registry Keys: LookingForUpdates=0x01 - ForcePostUpdateDownload=0x01 - ForcePostUpdateInstall=0x00 00:03.984: INFO: WindowsUpdate>>Search: Search criteria: 'IsInstalled=0 and Type='Software' and CategoryIDs contains '5312e4f1-6372-442d-aeb2-15f2132c9bd7'' 00:04.031: INFO: |WU Download >>> Looking for Internet Explorer updates... And here is the end of the WindowsUpdate.log: 2012-09-15 08:14:16:109 1168 fc AU ############# 2012-09-15 08:14:16:109 1168 fc AU ## START ## AU: Search for updates 2012-09-15 08:14:16:109 1168 fc AU ######### 2012-09-15 08:14:16:109 1168 fc AU <<## SUBMITTED ## AU: Search for updates [CallId = {92AA8321-2BDA-46EA-828E-52D43F3BD58C}] 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {B4B9471C-1A5E-4D9C-94EF-84B00592946A}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {7F28CDA0-8249-47CA-BD3C-677813249FE9}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {F1B1A591-BB75-4B1C-9FBD-03EEDB00CC9D}.103 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {6384F8AC-4973-4ED9-BC7F-4644507FB001}.102 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {1C81AA3A-6F53-499D-B519-2A81CFBAA1DB}.102 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {7A25C7EC-3798-4413-A493-57A259D18959}.103 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {D6E99F31-FBF4-4DBF-B408-7D75B282D85B}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {1D45A361-56E7-4A3E-8E9F-AE022D050D13}.101 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {AA38D853-2A3E-4F72-86E9-32663D73DC55}.102 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {3ABE760C-4578-4C84-A1CB-BF1DF019EFE4}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {596ADB47-108D-482D-85BA-A513621434B7}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {0F90F2F5-18A2-412C-AEB9-7F027D6C986D}.104 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {7079BEEB-6120-4AFD-AD07-FB4DFA284FBE}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent Update {A566B4B1-D44F-46F8-A862-64EFA6684948}.100 is pruned out due to potential supersedence 2012-09-15 08:14:16:140 1168 2c4 Agent Update {A2E271BC-57AE-44C3-8BFF-919D81299B5D}.100 is pruned out due to potential supersedence 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {DE76AB56-5835-46D4-A6B7-1ABED2572F00}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {C683FDC6-3997-4D12-AABB-49AE57031FE6}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Added update {4C5429B5-22FE-4656-9E82-D80C1B99D73E}.100 to search result 2012-09-15 08:14:16:140 1168 2c4 Agent * Found 16 updates and 69 categories in search; evaluated appl. rules of 1868 out of 3469 deployed entities 2012-09-15 08:14:16:171 1168 2c4 Agent ********* 2012-09-15 08:14:16:171 1168 2c4 Agent ** END ** Agent: Finding updates [CallerId = MicrosoftUpdate] 2012-09-15 08:14:16:171 1168 2c4 Agent ************* 2012-09-15 08:14:16:187 1168 2c4 Agent ************* 2012-09-15 08:14:16:187 1168 2c4 Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates] 2012-09-15 08:14:16:187 1168 2c4 Agent ********* 2012-09-15 08:14:16:187 1168 2c4 Agent * Online = No; Ignore download priority = No 2012-09-15 08:14:16:187 1168 2c4 Agent * Criteria = "IsHidden=0 and IsInstalled=0 and DeploymentAction='Installation' and IsAssigned=1 or IsHidden=0 and IsPresent=1 and DeploymentAction='Uninstallation' and IsAssigned=1 or IsHidden=0 and IsInstalled=1 and DeploymentAction='Installation' and IsAssigned=1 and RebootRequired=1 or IsHidden=0 and IsInstalled=0 and DeploymentAction='Uninstallation' and IsAssigned=1 and RebootRequired=1" 2012-09-15 08:14:16:187 1168 2c4 Agent * ServiceID = {7971F918-A847-4430-9279-4A52D1EFE18D} Third party service 2012-09-15 08:14:16:187 1168 2c4 Agent * Search Scope = {Machine} 2012-09-15 08:14:16:203 4000 59c COMAPI >>-- RESUMED -- COMAPI: Search [ClientId = MicrosoftUpdate] 2012-09-15 08:14:16:203 4000 59c COMAPI - Updates found = 16 2012-09-15 08:14:16:203 4000 59c COMAPI --------- 2012-09-15 08:14:16:218 4000 59c COMAPI -- END -- COMAPI: Search [ClientId = MicrosoftUpdate] 2012-09-15 08:14:16:218 4000 59c COMAPI ------------- 2012-09-15 08:14:20:843 1168 69c AU AU received install approval from client for 1 updates 2012-09-15 08:14:20:843 1168 69c AU ############# 2012-09-15 08:14:20:843 1168 69c AU ## START ## AU: Install updates 2012-09-15 08:14:20:859 1168 69c AU ######### 2012-09-15 08:14:20:859 1168 69c AU # Initiating manual install 2012-09-15 08:14:20:859 1168 69c AU # Approved updates = 1 2012-09-15 08:14:20:875 1168 2c4 Agent * Added update {0F90F2F5-18A2-412C-AEB9-7F027D6C986D}.104 to search result 2012-09-15 08:14:20:875 1168 2c4 Agent * Found 1 updates and 69 categories in search; evaluated appl. rules of 1326 out of 3469 deployed entities 2012-09-15 08:14:20:875 1168 2c4 Agent ********* 2012-09-15 08:14:20:875 1168 2c4 Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates] 2012-09-15 08:14:20:875 1168 2c4 Agent ************* 2012-09-15 08:14:20:875 1168 69c AU <<## SUBMITTED ## AU: Install updates / installing updates [CallId = {BB25B2FA-1DA6-46EF-BBAD-93AEC822BD21}] 2012-09-15 08:14:20:890 1168 eac AU >>## RESUMED ## AU: Search for updates [CallId = {92AA8321-2BDA-46EA-828E-52D43F3BD58C}] 2012-09-15 08:14:20:890 1168 eac AU # 1 updates detected 2012-09-15 08:14:20:890 1168 280 Agent ************* 2012-09-15 08:14:20:890 1168 280 Agent ** START ** Agent: Installing updates [CallerId = AutomaticUpdates] 2012-09-15 08:14:20:890 1168 280 Agent ********* 2012-09-15 08:14:20:890 1168 280 Agent * Updates to install = 1 2012-09-15 08:14:20:890 1168 eac AU ######### 2012-09-15 08:14:20:890 1168 eac AU ## END ## AU: Search for updates [CallId = {92AA8321-2BDA-46EA-828E-52D43F3BD58C}] 2012-09-15 08:14:20:890 1168 eac AU ############# 2012-09-15 08:14:20:890 1168 eac AU Featured notifications is disabled. 2012-09-15 08:14:20:906 1168 2c4 Report REPORT EVENT: {F352ECAD-2C8C-4F9A-A225-333B5018F1F0} 2012-09-15 08:13:23:234-0500 1 188 102 {00000000-0000-0000-0000-000000000000} 0 0 AutomaticUpdates Success Content Install Installation Ready: The following updates are downloaded and ready for installation. This computer is currently scheduled to install these updates on Sunday, September 16, 2012 at 3:00 AM: - Internet Explorer 8 for Windows XP 2012-09-15 08:14:20:906 1168 2c4 Report REPORT EVENT: {707D1D6E-BA62-438F-B704-0CC083B1FB6C} 2012-09-15 08:13:23:234-0500 1 202 102 {00000000-0000-0000-0000-000000000000} 0 0 AutomaticUpdates Success Content Install Reboot completed. 2012-09-15 08:14:20:906 1168 2c4 Report REPORT EVENT: {65C04CE5-D046-4B6F-92F1-E2DF36730338} 2012-09-15 08:14:16:156-0500 1 147 101 {00000000-0000-0000-0000-000000000000} 0 0 MicrosoftUpdate Success Software Synchronization Windows Update Client successfully detected 16 updates. 2012-09-15 08:14:20:921 1168 280 Agent * Title = Internet Explorer 8 for Windows XP 2012-09-15 08:14:20:921 1168 280 Agent * UpdateId = {0F90F2F5-18A2-412C-AEB9-7F027D6C986D}.104 2012-09-15 08:14:20:921 1168 280 Agent * Bundles 2 updates: 2012-09-15 08:14:20:921 1168 280 Agent * {114743B0-0F07-4000-8C51-BE808D819516}.104 2012-09-15 08:14:20:921 1168 280 Agent * {81B41B2D-E98D-4DFE-9CB7-E88AE50E9B42}.104 2012-09-15 08:14:25:078 1168 280 Handler Attempting to create remote handler process as RAY\Ray in session 0 2012-09-15 08:14:25:250 1168 280 DnldMgr Preparing update for install, updateId = {114743B0-0F07-4000-8C51-BE808D819516}.104. 2012-09-15 08:14:27:453 1256 528 Misc =========== Logging initialized (build: 7.6.7600.256, tz: -0500) =========== 2012-09-15 08:14:27:453 1256 528 Misc = Process: C:\WINDOWS\system32\wuauclt.exe 2012-09-15 08:14:27:453 1256 528 Misc = Module: C:\WINDOWS\system32\wuaueng.dll 2012-09-15 08:14:27:453 1256 528 Handler ::::::::::::: 2012-09-15 08:14:27:453 1256 528 Handler :: START :: Handler: Command Line Install 2012-09-15 08:14:27:453 1256 528 Handler ::::::::: 2012-09-15 08:14:27:453 1256 528 Handler : Updates to install = 1 2012-09-15 08:14:35:062 676 684 Misc =========== Logging initialized (build: 7.6.7600.256, tz: -0500) =========== 2012-09-15 08:14:35:062 676 684 Misc = Process: c:\cac6f883a91a15abdac3e9\update\iesetup.exe 2012-09-15 08:14:35:062 676 684 Misc = Module: C:\WINDOWS\system32\wuapi.dll 2012-09-15 08:14:35:062 676 684 COMAPI ------------- 2012-09-15 08:14:35:062 676 684 COMAPI -- START -- COMAPI: Search [ClientId = Windows Internet Explorer 8 Setup Utility] 2012-09-15 08:14:35:062 676 684 COMAPI --------- 2012-09-15 08:14:35:078 1168 2c4 Agent ************* 2012-09-15 08:14:35:078 1168 2c4 Agent ** START ** Agent: Finding updates [CallerId = Windows Internet Explorer 8 Setup Utility] 2012-09-15 08:14:35:078 1168 2c4 Agent ********* 2012-09-15 08:14:35:078 1168 2c4 Agent * Online = Yes; Ignore download priority = No 2012-09-15 08:14:35:078 1168 2c4 Agent * Criteria = "IsInstalled=0 and Type='Software' and CategoryIDs contains '5312e4f1-6372-442d-aeb2-15f2132c9bd7'" 2012-09-15 08:14:35:078 1168 2c4 Agent * ServiceID = {00000000-0000-0000-0000-000000000000} Third party service 2012-09-15 08:14:35:078 1168 2c4 Agent * Search Scope = {Machine} 2012-09-15 08:14:35:078 676 684 COMAPI <<-- SUBMITTED -- COMAPI: Search [ClientId = Windows Internet Explorer 8 Setup Utility] 2012-09-15 08:14:35:078 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\9482F4B4-E343-43B6-B170-9A65BC822C77\muv4wuredir.cab: 2012-09-15 08:14:35:093 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:156 1168 2c4 Misc WARNING: WinHttp: SendRequestToServerForFileInformation failed with 0x80190194 2012-09-15 08:14:35:156 1168 2c4 Misc WARNING: WinHttp: ShouldFileBeDownloaded failed with 0x80190194 2012-09-15 08:14:35:156 1168 2c4 Misc WARNING: DownloadFileInternal failed for http://download.windowsupdate.com/v9/1/windowsupdate/redir/muv4wuredir.cab: error 0x80190194 2012-09-15 08:14:35:156 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\9482F4B4-E343-43B6-B170-9A65BC822C77\muv4wuredir.cab: 2012-09-15 08:14:35:171 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:312 1168 2c4 Misc WARNING: WinHttp: SendRequestToServerForFileInformation failed with 0x80190194 2012-09-15 08:14:35:312 1168 2c4 Misc WARNING: WinHttp: ShouldFileBeDownloaded failed with 0x80190194 2012-09-15 08:14:35:312 1168 2c4 Misc WARNING: DownloadFileInternal failed for http://download.microsoft.com/v9/1/windowsupdate/redir/muv4wuredir.cab: error 0x80190194 2012-09-15 08:14:35:312 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\9482F4B4-E343-43B6-B170-9A65BC822C77\muv4wuredir.cab: 2012-09-15 08:14:35:312 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:406 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\9482F4B4-E343-43B6-B170-9A65BC822C77\muv4wuredir.cab: 2012-09-15 08:14:35:421 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:437 1168 2c4 Agent Checking for updated auth cab for service 7971f918-a847-4430-9279-4a52d1efe18d at http://download.windowsupdate.com/v9/1/microsoftupdate/redir/muauth.cab 2012-09-15 08:14:35:437 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\AuthCabs\authcab.cab: 2012-09-15 08:14:35:437 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:578 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\AuthCabs\authcab.cab: 2012-09-15 08:14:35:593 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:687 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\7971F918-A847-4430-9279-4A52D1EFE18D\muv4muredir.cab: 2012-09-15 08:14:35:718 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:765 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\7971F918-A847-4430-9279-4A52D1EFE18D\muv4muredir.cab: 2012-09-15 08:14:35:781 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:781 1168 2c4 PT +++++++++++ PT: Starting category scan +++++++++++ 2012-09-15 08:14:35:781 1168 2c4 PT + ServiceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, Server URL = https://www.update.microsoft.com/v6/ClientWebService/client.asmx 2012-09-15 08:14:35:906 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\7971F918-A847-4430-9279-4A52D1EFE18D\muv4muredir.cab: 2012-09-15 08:14:35:921 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:968 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\7971F918-A847-4430-9279-4A52D1EFE18D\muv4muredir.cab: 2012-09-15 08:14:35:984 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:35:984 1168 2c4 PT +++++++++++ PT: Synchronizing server updates +++++++++++ 2012-09-15 08:14:35:984 1168 2c4 PT + ServiceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, Server URL = https://www.update.microsoft.com/v6/ClientWebService/client.asmx 2012-09-15 08:14:37:250 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\7971F918-A847-4430-9279-4A52D1EFE18D\muv4muredir.cab: 2012-09-15 08:14:37:265 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:37:312 1168 2c4 Misc Validating signature for C:\WINDOWS\SoftwareDistribution\WuRedir\7971F918-A847-4430-9279-4A52D1EFE18D\muv4muredir.cab: 2012-09-15 08:14:37:328 1168 2c4 Misc Microsoft signed: Yes 2012-09-15 08:14:37:328 1168 2c4 PT +++++++++++ PT: Synchronizing extended update info +++++++++++ 2012-09-15 08:14:37:328 1168 2c4 PT + ServiceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, Server URL = https://www.update.microsoft.com/v6/ClientWebService/client.asmx 2012-09-15 08:14:37:453 784 314 DtaStor WARNING: Attempted to add URL http://download.windowsupdate.com/msdownload/update/software/dflt/2010/06/3888874_6c6699387d7465bc17c02cc31a660b216427fc78.cab for file bGaZOH10ZbwXwCzDGmYLIWQn/Hg= when file has not been previously added to the datastore 2012-09-15 08:14:37:468 784 314 DtaStor WARNING: Attempted to add URL http://download.windowsupdate.com/msdownload/update/software/dflt/2011/12/4876484_606d98885a70abb9e5e7f3821682cf5541b17c27.cab for file YG2YiFpwq7nl5/OCFoLPVUGxfCc= when file has not been previously added to the datastore 2012-09-15 08:14:37:468 784 314 DtaStor WARNING: Attempted to add URL http://download.windowsupdate.com/msdownload/update/software/dflt/2012/08/5179550_0e825c9da8f36ff2addcbbf4089e12bff764e0a0.cab for file DoJcnajzb/Kt3Lv0CJ4Sv/dk4KA= when file has not been previously added to the datastore 2012-09-15 08:14:37:937 1168 2c4 Agent * Added update {551EF226-28CF-44D9-B318-4959C2B73B26}.100 to search result 2012-09-15 08:14:37:937 1168 2c4 Agent * Added update {955266A7-6210-4C18-BAEF-0E8244D975A9}.100 to search result 2012-09-15 08:14:37:937 1168 2c4 Agent * Added update {797D3C3F-CFD2-4D26-BB52-BE038205C7C4}.105 to search result 2012-09-15 08:14:37:937 1168 2c4 Agent * Added update {EDB28194-3635-480E-A069-1D1984CCB2AB}.102 to search result 2012-09-15 08:14:37:937 1168 2c4 Agent * Found 4 updates and 5 categories in search; evaluated appl. rules of 52 out of 65 deployed entities 2012-09-15 08:14:37:937 1168 2c4 Agent ********* 2012-09-15 08:14:37:937 1168 2c4 Agent ** END ** Agent: Finding updates [CallerId = Windows Internet Explorer 8 Setup Utility] 2012-09-15 08:14:37:937 1168 2c4 Agent ************* 2012-09-15 08:14:37:953 676 8cc COMAPI >>-- RESUMED -- COMAPI: Search [ClientId = Windows Internet Explorer 8 Setup Utility] 2012-09-15 08:14:37:953 676 8cc COMAPI - Updates found = 4 2012-09-15 08:14:37:953 676 8cc COMAPI --------- 2012-09-15 08:14:37:953 676 8cc COMAPI -- END -- COMAPI: Search [ClientId = Windows Internet Explorer 8 Setup Utility] 2012-09-15 08:14:37:953 676 8cc COMAPI ------------- 2012-09-15 08:14:42:937 1168 2c4 Report REPORT EVENT: {88008109-CF47-404E-940D-6C21A85DFF64} 2012-09-15 08:14:37:937-0500 1 147 101 {00000000-0000-0000-0000-000000000000} 0 0 Windows Internet Explorer 8 Set Success Software Synchronization Windows Update Client successfully detected 4 updates. I could upload the entire WindowsUpdate.log file to dropbox if required.

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  • Parallel prologue and epilogue in Grid Engine

    - by ajdecon
    We have a cluster being used to run MPI jobs for a customer. Previously this cluster used Torque as the scheduler, but we are transitioning to Grid Engine 6.2u5 (for some other features). Unfortunately, we are having trouble duplicating some of our maintenance scripts in the Grid Engine environment. In Torque, we have a prologue.parallel script which is used to carry out an automated health-check on the node. If this script returns a fail condition, Torque will helpfully offline the node and re-queue the job to use a different group of nodes. In Grid Engine, however, the queue "prolog" only runs on the head node of the job. We can manually run our prologue script from the startmpi.sh initialization script, for the mpi parallel environment; but I can't figure out how to detect a fail condition and carry out the same "mark offline and requeue" procedure. Any suggestions?

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  • org-sort multi: date/time (?d ?t) | priority (?p) | title (?a)

    - by lawlist
    Is anyone aware of an org-sort function / modification that can refile / organize a group of TODO so that it sorts them by three (3) criteria: first sort by due date, second sort by priority, and third sort by by title of the task? EDIT: I believe that org-sort by deadline (?d) has a bug that cannot properly handle undated tasks. I am working on a workaround (i.e., moving the undated todo to a different heading before the deadline (?d) sort occurs), but perhaps the best thing to do would be to try and fix the original sorting function. Development of the workaround can be found in this thread (i.e., moving the undated tasks to a different heading in one fell swoop): How to automate org-refile for multiple todo EDIT: Apparently, the following code (ancient history) that I found on the internet was eventually modified and included as a part of org-sort-entries. Unfortunately, undated todo are not properly sorted when sorting by deadline -- i.e., they are mixed in with the dated todo. ;; multiple sort (defun org-sort-multi (&rest sort-types) "Multiple sorts on a certain level of an outline tree, or plain list items. SORT-TYPES is a list where each entry is either a character or a cons pair (BOOL . CHAR), where BOOL is whether or not to sort case-sensitively, and CHAR is one of the characters defined in `org-sort-entries-or-items'. Entries are applied in back to front order. Example: To sort first by TODO status, then by priority, then by date, then alphabetically (case-sensitive) use the following call: (org-sort-multi '(?d ?p ?t (t . ?a)))" (interactive) (dolist (x (nreverse sort-types)) (when (char-valid-p x) (setq x (cons nil x))) (condition-case nil (org-sort-entries (car x) (cdr x)) (error nil)))) ;; sort current level (defun lawlist-sort (&rest sort-types) "Sort the current org level. SORT-TYPES is a list where each entry is either a character or a cons pair (BOOL . CHAR), where BOOL is whether or not to sort case-sensitively, and CHAR is one of the characters defined in `org-sort-entries-or-items'. Entries are applied in back to front order. Defaults to \"?o ?p\" which is sorted by TODO status, then by priority" (interactive) (when (equal mode-name "Org") (let ((sort-types (or sort-types (if (or (org-entry-get nil "TODO") (org-entry-get nil "PRIORITY")) '(?d ?t ?p) ;; date, time, priority '((nil . ?a)))))) (save-excursion (outline-up-heading 1) (let ((start (point)) end) (while (and (not (bobp)) (not (eobp)) (<= (point) start)) (condition-case nil (outline-forward-same-level 1) (error (outline-up-heading 1)))) (unless (> (point) start) (goto-char (point-max))) (setq end (point)) (goto-char start) (apply 'org-sort-multi sort-types) (goto-char end) (when (eobp) (forward-line -1)) (when (looking-at "^\\s-*$") ;; (delete-line) ) (goto-char start) ;; (dotimes (x ) (org-cycle)) ))))) EDIT: Here is a more modern version of multi-sort, which is likely based upon further development of the above-code: (defun org-sort-all () (interactive) (save-excursion (goto-char (point-min)) (while (re-search-forward "^\* " nil t) (goto-char (match-beginning 0)) (condition-case err (progn (org-sort-entries t ?a) (org-sort-entries t ?p) (org-sort-entries t ?o) (forward-line)) (error nil))) (goto-char (point-min)) (while (re-search-forward "\* PROJECT " nil t) (goto-char (line-beginning-position)) (ignore-errors (org-sort-entries t ?a) (org-sort-entries t ?p) (org-sort-entries t ?o)) (forward-line)))) EDIT: The best option will be to fix sorting of deadlines (?d) so that undated todo are moved to the bottom of the outline, instead of mixed in with the dated todo. Here is an excerpt from the current org.el included within Emacs Trunk (as of July 1, 2013): (defun org-sort (with-case) "Call `org-sort-entries', `org-table-sort-lines' or `org-sort-list'. Optional argument WITH-CASE means sort case-sensitively." (interactive "P") (cond ((org-at-table-p) (org-call-with-arg 'org-table-sort-lines with-case)) ((org-at-item-p) (org-call-with-arg 'org-sort-list with-case)) (t (org-call-with-arg 'org-sort-entries with-case)))) (defun org-sort-remove-invisible (s) (remove-text-properties 0 (length s) org-rm-props s) (while (string-match org-bracket-link-regexp s) (setq s (replace-match (if (match-end 2) (match-string 3 s) (match-string 1 s)) t t s))) s) (defvar org-priority-regexp) ; defined later in the file (defvar org-after-sorting-entries-or-items-hook nil "Hook that is run after a bunch of entries or items have been sorted. When children are sorted, the cursor is in the parent line when this hook gets called. When a region or a plain list is sorted, the cursor will be in the first entry of the sorted region/list.") (defun org-sort-entries (&optional with-case sorting-type getkey-func compare-func property) "Sort entries on a certain level of an outline tree. If there is an active region, the entries in the region are sorted. Else, if the cursor is before the first entry, sort the top-level items. Else, the children of the entry at point are sorted. Sorting can be alphabetically, numerically, by date/time as given by a time stamp, by a property or by priority. The command prompts for the sorting type unless it has been given to the function through the SORTING-TYPE argument, which needs to be a character, \(?n ?N ?a ?A ?t ?T ?s ?S ?d ?D ?p ?P ?o ?O ?r ?R ?f ?F). Here is the precise meaning of each character: n Numerically, by converting the beginning of the entry/item to a number. a Alphabetically, ignoring the TODO keyword and the priority, if any. o By order of TODO keywords. t By date/time, either the first active time stamp in the entry, or, if none exist, by the first inactive one. s By the scheduled date/time. d By deadline date/time. c By creation time, which is assumed to be the first inactive time stamp at the beginning of a line. p By priority according to the cookie. r By the value of a property. Capital letters will reverse the sort order. If the SORTING-TYPE is ?f or ?F, then GETKEY-FUNC specifies a function to be called with point at the beginning of the record. It must return either a string or a number that should serve as the sorting key for that record. Comparing entries ignores case by default. However, with an optional argument WITH-CASE, the sorting considers case as well." (interactive "P") (let ((case-func (if with-case 'identity 'downcase)) (cmstr ;; The clock marker is lost when using `sort-subr', let's ;; store the clocking string. (when (equal (marker-buffer org-clock-marker) (current-buffer)) (save-excursion (goto-char org-clock-marker) (looking-back "^.*") (match-string-no-properties 0)))) start beg end stars re re2 txt what tmp) ;; Find beginning and end of region to sort (cond ((org-region-active-p) ;; we will sort the region (setq end (region-end) what "region") (goto-char (region-beginning)) (if (not (org-at-heading-p)) (outline-next-heading)) (setq start (point))) ((or (org-at-heading-p) (condition-case nil (progn (org-back-to-heading) t) (error nil))) ;; we will sort the children of the current headline (org-back-to-heading) (setq start (point) end (progn (org-end-of-subtree t t) (or (bolp) (insert "\n")) (org-back-over-empty-lines) (point)) what "children") (goto-char start) (show-subtree) (outline-next-heading)) (t ;; we will sort the top-level entries in this file (goto-char (point-min)) (or (org-at-heading-p) (outline-next-heading)) (setq start (point)) (goto-char (point-max)) (beginning-of-line 1) (when (looking-at ".*?\\S-") ;; File ends in a non-white line (end-of-line 1) (insert "\n")) (setq end (point-max)) (setq what "top-level") (goto-char start) (show-all))) (setq beg (point)) (if (>= beg end) (error "Nothing to sort")) (looking-at "\\(\\*+\\)") (setq stars (match-string 1) re (concat "^" (regexp-quote stars) " +") re2 (concat "^" (regexp-quote (substring stars 0 -1)) "[ \t\n]") txt (buffer-substring beg end)) (if (not (equal (substring txt -1) "\n")) (setq txt (concat txt "\n"))) (if (and (not (equal stars "*")) (string-match re2 txt)) (error "Region to sort contains a level above the first entry")) (unless sorting-type (message "Sort %s: [a]lpha [n]umeric [p]riority p[r]operty todo[o]rder [f]unc [t]ime [s]cheduled [d]eadline [c]reated A/N/P/R/O/F/T/S/D/C means reversed:" what) (setq sorting-type (read-char-exclusive)) (and (= (downcase sorting-type) ?f) (setq getkey-func (org-icompleting-read "Sort using function: " obarray 'fboundp t nil nil)) (setq getkey-func (intern getkey-func))) (and (= (downcase sorting-type) ?r) (setq property (org-icompleting-read "Property: " (mapcar 'list (org-buffer-property-keys t)) nil t)))) (message "Sorting entries...") (save-restriction (narrow-to-region start end) (let ((dcst (downcase sorting-type)) (case-fold-search nil) (now (current-time))) (sort-subr (/= dcst sorting-type) ;; This function moves to the beginning character of the "record" to ;; be sorted. (lambda nil (if (re-search-forward re nil t) (goto-char (match-beginning 0)) (goto-char (point-max)))) ;; This function moves to the last character of the "record" being ;; sorted. (lambda nil (save-match-data (condition-case nil (outline-forward-same-level 1) (error (goto-char (point-max)))))) ;; This function returns the value that gets sorted against. (lambda nil (cond ((= dcst ?n) (if (looking-at org-complex-heading-regexp) (string-to-number (match-string 4)) nil)) ((= dcst ?a) (if (looking-at org-complex-heading-regexp) (funcall case-func (match-string 4)) nil)) ((= dcst ?t) (let ((end (save-excursion (outline-next-heading) (point)))) (if (or (re-search-forward org-ts-regexp end t) (re-search-forward org-ts-regexp-both end t)) (org-time-string-to-seconds (match-string 0)) (org-float-time now)))) ((= dcst ?c) (let ((end (save-excursion (outline-next-heading) (point)))) (if (re-search-forward (concat "^[ \t]*\\[" org-ts-regexp1 "\\]") end t) (org-time-string-to-seconds (match-string 0)) (org-float-time now)))) ((= dcst ?s) (let ((end (save-excursion (outline-next-heading) (point)))) (if (re-search-forward org-scheduled-time-regexp end t) (org-time-string-to-seconds (match-string 1)) (org-float-time now)))) ((= dcst ?d) (let ((end (save-excursion (outline-next-heading) (point)))) (if (re-search-forward org-deadline-time-regexp end t) (org-time-string-to-seconds (match-string 1)) (org-float-time now)))) ((= dcst ?p) (if (re-search-forward org-priority-regexp (point-at-eol) t) (string-to-char (match-string 2)) org-default-priority)) ((= dcst ?r) (or (org-entry-get nil property) "")) ((= dcst ?o) (if (looking-at org-complex-heading-regexp) (- 9999 (length (member (match-string 2) org-todo-keywords-1))))) ((= dcst ?f) (if getkey-func (progn (setq tmp (funcall getkey-func)) (if (stringp tmp) (setq tmp (funcall case-func tmp))) tmp) (error "Invalid key function `%s'" getkey-func))) (t (error "Invalid sorting type `%c'" sorting-type)))) nil (cond ((= dcst ?a) 'string<) ((= dcst ?f) compare-func) ((member dcst '(?p ?t ?s ?d ?c)) '<))))) (run-hooks 'org-after-sorting-entries-or-items-hook) ;; Reset the clock marker if needed (when cmstr (save-excursion (goto-char start) (search-forward cmstr nil t) (move-marker org-clock-marker (point)))) (message "Sorting entries...done"))) (defun org-do-sort (table what &optional with-case sorting-type) "Sort TABLE of WHAT according to SORTING-TYPE. The user will be prompted for the SORTING-TYPE if the call to this function does not specify it. WHAT is only for the prompt, to indicate what is being sorted. The sorting key will be extracted from the car of the elements of the table. If WITH-CASE is non-nil, the sorting will be case-sensitive." (unless sorting-type (message "Sort %s: [a]lphabetic, [n]umeric, [t]ime. A/N/T means reversed:" what) (setq sorting-type (read-char-exclusive))) (let ((dcst (downcase sorting-type)) extractfun comparefun) ;; Define the appropriate functions (cond ((= dcst ?n) (setq extractfun 'string-to-number comparefun (if (= dcst sorting-type) '< '>))) ((= dcst ?a) (setq extractfun (if with-case (lambda(x) (org-sort-remove-invisible x)) (lambda(x) (downcase (org-sort-remove-invisible x)))) comparefun (if (= dcst sorting-type) 'string< (lambda (a b) (and (not (string< a b)) (not (string= a b))))))) ((= dcst ?t) (setq extractfun (lambda (x) (if (or (string-match org-ts-regexp x) (string-match org-ts-regexp-both x)) (org-float-time (org-time-string-to-time (match-string 0 x))) 0)) comparefun (if (= dcst sorting-type) '< '>))) (t (error "Invalid sorting type `%c'" sorting-type))) (sort (mapcar (lambda (x) (cons (funcall extractfun (car x)) (cdr x))) table) (lambda (a b) (funcall comparefun (car a) (car b))))))

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  • Question about exim4 config syntax

    - by PeterMmm
    I'm trying to send a notification to the sender of a message when a message is send to exactly one address in the local domain ([email protected]). Q1: How would be the syntax for the condition (the above don't work) ? : notify_reply: driver=accept domains = +local_domains senders = ! ^.*-request@.*:\ ! ^bounce-.*@.*:\ ! ^.*-bounce@.*:\ ! ^owner-.*@.*:\ ! ^postmaster@.*:\ ! ^webmaster@.*:\ ! ^listmaster@.*:\ ! ^mailer-daemon@.*:\ ! ^root@.*:\ ! ^noreply@.* condition = ${if eq {$received_for}{[email protected]}} no_expn transport=notify_transport unseen no_verify Q2: How to write multiline string in the config file for "text" ? : notify_transport: driver=autoreply [email protected] to=$sender_address subject=Your mail for text="Please resend your messasge to [email protected] This is a temporary modification."

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  • Standard for feeding test data to a Nagios plugin?

    - by chiborg
    I'm developing a Nagios plugin in Perl (no Nagios::Plugin, just plain Perl). The error condition I'm checking for normally comes from a command output, called inside the plugin. However, it would be very inconvenient to create the error condition, so I'm looking for a way to feed test output to the plugin to see if it works correctly. The easiest way I found at the moment would be with a command line option to optionally read input from a file instead of calling the command. if($opt_f) { open(FILE, $opt_f); @output = <FILE>; close FILE; } else { @output = `my_command`; } Are there other, better ways to do this?

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  • Ping Flooding in router log

    - by Freeman
    I've had recently a period of repeated disconnections from my router with connection problems. I checked my router log I found several Ping Flooding entries all originating from the IP 69.171.227.232 which turned out to be one of Facebook IPs! I'm wondering what does that means? Can Facebook chat cause such a condition? My router is DLink dir 600 and the condition that devices were disconnected from router, not router from internet.. Connection is WAN And how to solve this router problem?? My wifi clients were about 3-5 at that time..

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  • How to cleanup tmp folder safely on Linux

    - by Syncopated
    I use RAM for my tmpfs /tmp, 2GB, to be exact. Normally, this is enough but sometimes, processes create files in there and fail to cleanup after themselves. This can happen if they crash. I need to delete these orphaned tmp files or else future process will run out of space on /tmp. How can I safely garbage collect /tmp? Some people do it by checking last modification timestamp, but this approach is unsafe because there can be long-running processes that still need those files. A safer approach is to combine the last modification timestamp condition with the condition that no process has a file handle for the file. Is there a program/script/etc that embodies this approach or some other approach that is also safe? Incidentally, does Linux/Unix allow a mode of file opening with creation wherein the created file is deleted when the creating process terminates, even if it's from a crash?

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  • How to optimize process of outlook files (*msg) conversion to .pdf?

    - by Lilly
    The aim is to convert several messages from Microsoft Outlook (2003 and/or 2007 versions) to .pdf files. Condition: One message should generate a corresponding single pdf file. If possible, pdf file should be named with date format YYYY-MM-DD (e.g. 2011-02-16.pdf). The current process, limited by softwares such as CutePDF, requires the conversion performed one message at a time. I'm looking for a solution that allows the conversion of several messages at once, but under the condition abovementioned (mainly: one message = one pdf file).

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  • mod_rewrite to redirect to specific WP page

    - by djdy
    The goal is to redirect all requests coming to Wordpress from IE 6 and 7, to a specific Wordpress page using mod_rewrite. My confusion comes from multiple conditions that are needed for the rewrite not entering an endless loop once on the specific Wordpress page. So the condition must be: (IE 6 or 7) and request is not the same as the page we are sending them to. I've tried things along the lines of: RewriteCond %{HTTP_USER_AGENT} MSIE\ ([67])\. RewriteCond %{REQUEST_URI} !iepage RewriteRule .* /iepage/ [R] In IE 6 and 7, I get page cannot be displayed errors. Could it really mean too many redirects, because the 2nd condition isn't working?

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  • The model item passed into the dictionary is of type ‘mvc.Models.ModelA’ but this dictionary require

    - by Malcolm Frexner
    I have this annoying mistake in some of my builds. There is no error in the project, because if I build again, then the problem disappears. The message only appears, when the site is deployed to a Windows 2008 Server. I first thought that it might be an issue with temporary files, but thats not the case. I deployed the build to a different web and the error still appears. The error appears on random actions of the site. Most of the time builds are ok, but each 3rd or 4th build produces runtime errors. I build using a WebdeploymentProject in release mode. Views are precompiled. It's not http://stackoverflow.com/questions/178194/in-asp-net-mvc-i-encounter-an-incorrect-type-error-when-rendering-a-page-with-the, because views have totally different names. How I can debug this problem or how I can get help for this? Here is my WebDeploymentProject <!-- Microsoft Visual Studio 2008 Web Deployment Project http://go.microsoft.com/fwlink/?LinkID=104956 --> <Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>9.0.21022</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{E5E14CEB-0BCD-4203-9A5A-34ABA9C717EA}</ProjectGuid> <SourceWebPhysicalPath>..\B2CWeb</SourceWebPhysicalPath> <SourceWebProject>{3E632DB6-6DB3-4BD0-8CCA-12DE67165B48}|B2CWeb\B2CWeb.csproj</SourceWebProject> <SourceWebVirtualPath>/B2CWeb.csproj</SourceWebVirtualPath> <TargetFrameworkVersion>v3.5</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <OutputPath>.\Debug</OutputPath> <EnableUpdateable>false</EnableUpdateable> <UseMerge>true</UseMerge> <SingleAssemblyName>B2CWeb_Build</SingleAssemblyName> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugSymbols>false</DebugSymbols> <OutputPath>..\B2CWeb_Deploy\</OutputPath> <EnableUpdateable>false</EnableUpdateable> <UseMerge>true</UseMerge> <SingleAssemblyName>B2C_Web</SingleAssemblyName> <ContentAssemblyName> </ContentAssemblyName> <DeleteAppCodeCompiledFiles>false</DeleteAppCodeCompiledFiles> </PropertyGroup> <ItemGroup> </ItemGroup> <Import Project="$(MSBuildExtensionsPath)\Microsoft\WebDeployment\v9.0\Microsoft.WebDeployment.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.WebDeployment.targets. <Target Name="BeforeBuild"> </Target> <Target Name="BeforeMerge"> </Target> <Target Name="AfterMerge"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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  • xaml : Retrigger opacity animation on multiple conditions

    - by Sdry
    I have a problem figuring out how datatriggers and multidatatriggers work. I am trying to display a message, and depending on the type of message keep it displayed( + having a background), or having it fade out by a double animation on the opacity property (+ having a transparent background). My xaml view has a game object as datacontext, which has a dependency property of type GameMessage, of which the constructor looks like this: public GameMessage(bool containsMessage, string message, bool canFadeAway) { ContainsMessage = containsMessage; Message = message; CanFadeAway = canFadeAway; } pretty straight forward, I want to display the message when ContainsMessage =equals true, and trigger a fade out animation if canFadeAway equals true. But also set the background based on canFadeAway. <Canvas Name="messageCanvas" Width="300" Height="100" Style="{StaticResource fadeInOut}"> <TextBlock Name="txtMessage" Text="{Binding Path=GameMessage.Message}" Canvas.Top="25" Canvas.Left="0" Foreground="{StaticResource MessageForegroundBrush}"> </TextBlock> </Canvas> Now, the Style and triggers is where I get into trouble: <Style.Triggers> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding Path=GameMessage.ContainsMessage}" Value="True"/> <Condition Binding="{Binding Path=GameMessage.CanFadeAway}" Value="False"/> </MultiDataTrigger.Conditions> <Setter Property="Background" Value="{StaticResource MessageBackgroundBrush}" /> <Setter Property="Opacity" Value="8" /> </MultiDataTrigger> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding Path=GameMessage.ContainsMessage}" Value="True"/> <Condition Binding="{Binding Path=GameMessage.CanFadeAway}" Value="True"/> </MultiDataTrigger.Conditions> <Setter Property="Background" Value="Transparent" /> <Setter Property="Opacity" Value="8" /> </MultiDataTrigger> <DataTrigger Binding="{Binding Path=GameMessage.CanFadeAway}" Value="True"> <DataTrigger.EnterActions> <BeginStoryboard > <Storyboard BeginTime="0:0:0" > <DoubleAnimation Storyboard.TargetProperty="Opacity" From="8" To="0" Duration="0:0:1" BeginTime="0:0:0" /> </Storyboard> </BeginStoryboard> </DataTrigger.EnterActions> <DataTrigger.ExitActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="Opacity" To="8" Duration="0:0:0.1" /> </Storyboard> </BeginStoryboard> </DataTrigger.ExitActions> </DataTrigger> </Style.Triggers> </Style> The problem is in resetting the opacity when the GameMessage Property ( of type GameMessage) is of type true,msg",true, and gets replaced by a GameMessage object of the same kind. The opcacity remains 0, and messages only get restored again when I have a message of kind true,"msg,false. After the animation, the opacity is 0, and where I would expect the second multidatatrigger to set it back to 8, and then have the animation performed by the Datatrigger, it doesnt. What would be the best way to get this working ?

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  • Servlet/JSP Flow Control: Enums, Exceptions, or Something Else?

    - by Christopher Parker
    I recently inherited an application developed with bare servlets and JSPs (i.e.: no frameworks). I've been tasked with cleaning up the error-handling workflow. Currently, each <form> in the workflow submits to a servlet, and based on the result of the form submission, the servlet does one of two things: If everything is OK, the servlet either forwards or redirects to the next page in the workflow. If there's a problem, such as an invalid username or password, the servlet forwards to a page specific to the problem condition. For example, there are pages such as AccountDisabled.jsp, AccountExpired.jsp, AuthenticationFailed.jsp, SecurityQuestionIncorrect.jsp, etc. I need to redesign this system to centralize how problem conditions are handled. So far, I've considered two possible solutions: Exceptions Create an exception class specific to my needs, such as AuthException. Inherit from this class to be more specific when necessary (e.g.: InvalidUsernameException, InvalidPasswordException, AccountDisabledException, etc.). Whenever there's a problem condition, throw an exception specific to the condition. Catch all exceptions via web.xml and route them to the appropriate page(s) with the <error-page> tag. enums Adopt an error code approach, with an enum keeping track of the error code and description. The descriptions can be read from a resource bundle in the finished product. I'm leaning more toward the enum approach, as an authentication failure isn't really an "exceptional condition" and I don't see any benefit in adding clutter to the server logs. Plus, I'd just be replacing one maintenance headache with another. Instead of separate JSPs to maintain, I'd have separate Exception classes. I'm planning on implementing "error" handling in a servlet that I'm writing specifically for this purpose. I'm also going to eliminate all of the separate error pages, instead setting an error request attribute with the error message to display to the user and forwarding back to the referrer. Each target servlet (Logon, ChangePassword, AnswerProfileQuestions, etc.) would add an error code to the request and redirect to my new servlet in the event of a problem. My new servlet would look something like this: public enum Error { INVALID_PASSWORD(5000, "You have entered an invalid password."), ACCOUNT_DISABLED(5002, "Your account has been disabled."), SESSION_EXPIRED(5003, "Your session has expired. Please log in again."), INVALID_SECURITY_QUESTION(5004, "You have answered a security question incorrectly."); private final int code; private final String description; Error(int code, String description) { this.code = code; this.description = description; } public int getCode() { return code; } public String getDescription() { return description; } }; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String sendTo = "UnknownError.jsp"; String message = "An unknown error has occurred."; int errorCode = Integer.parseInt((String)request.getAttribute("errorCode"), 10); Error errors[] = Error.values(); Error error = null; for (int i = 0; error == null && i < errors.length; i++) { if (errors[i].getCode() == errorCode) { error = errors[i]; } } if (error != null) { sendTo = request.getHeader("referer"); message = error.getDescription(); } request.setAttribute("error", message); request.getRequestDispatcher(sendTo).forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } Being fairly inexperienced with Java EE (this is my first real exposure to JSPs and servlets), I'm sure there's something I'm missing, or my approach is suboptimal. Am I on the right track, or do I need to rethink my strategy?

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  • Java thread dump where main thread has no call stack? (jsvc)

    - by dwhsix
    We have a java process running as a daemon (under jsvc). Every several days it just stops doing any work; output to the logfile stops (it is pretty verbose, on 5-minute intervals) and it consumes no CPU or IO. There are no exceptions logged in the logfile nor in syserr or sysout. The last log statement is just prior to a db commit being done, but there is no open connection on the db server (MySQL) and reviewing the code, there should always be additional log output after that, even if it had encountered an exception that was going to bubble up. The most curious thing I find is that in the thread dump (included below), there's no thread in our code at all, and the main thread seems to have no context whatsoever: "main" prio=10 tid=0x0000000000614000 nid=0x445d runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE As noted earlier, this is a daemon process running using jsvc, but I don't know if that has anything to do with it (I can restructure the code to also allow running it directly, to test). Any suggestions on what might be happening here? Thanks... dwh Full thread dump: Full thread dump Java HotSpot(TM) 64-Bit Server VM (14.2-b01 mixed mode): "MySQL Statement Cancellation Timer" daemon prio=10 tid=0x00002aaaf81b8800 nid=0x447b in Object.wait() [0x00002aaaf6a22000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00002aaab5556d50> (a java.util.TaskQueue) at java.lang.Object.wait(Object.java:485) at java.util.TimerThread.mainLoop(Timer.java:483) - locked <0x00002aaab5556d50> (a java.util.TaskQueue) at java.util.TimerThread.run(Timer.java:462) "Low Memory Detector" daemon prio=10 tid=0x00000000006a4000 nid=0x4479 runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "CompilerThread1" daemon prio=10 tid=0x00000000006a1000 nid=0x4477 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "CompilerThread0" daemon prio=10 tid=0x000000000069d000 nid=0x4476 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Signal Dispatcher" daemon prio=10 tid=0x000000000069b000 nid=0x4465 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Finalizer" daemon prio=10 tid=0x0000000000678800 nid=0x4464 in Object.wait() [0x00002aaaf61d6000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00002aaab54a1cb8> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118) - locked <0x00002aaab54a1cb8> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=10 tid=0x0000000000676800 nid=0x4463 in Object.wait() [0x00002aaaf60d5000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00002aaab54a1cf0> (a java.lang.ref.Reference$Lock) at java.lang.Object.wait(Object.java:485) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116) - locked <0x00002aaab54a1cf0> (a java.lang.ref.Reference$Lock) "main" prio=10 tid=0x0000000000614000 nid=0x445d runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "VM Thread" prio=10 tid=0x0000000000670000 nid=0x4462 runnable "GC task thread#0 (ParallelGC)" prio=10 tid=0x000000000061e000 nid=0x445e runnable "GC task thread#1 (ParallelGC)" prio=10 tid=0x0000000000620000 nid=0x445f runnable "GC task thread#2 (ParallelGC)" prio=10 tid=0x0000000000622000 nid=0x4460 runnable "GC task thread#3 (ParallelGC)" prio=10 tid=0x0000000000623800 nid=0x4461 runnable "VM Periodic Task Thread" prio=10 tid=0x00000000006a6800 nid=0x447a waiting on condition JNI global references: 797 Heap PSYoungGen total 162944K, used 48388K [0x00002aaadff40000, 0x00002aaaf2ab0000, 0x00002aaaf5490000) eden space 102784K, 47% used [0x00002aaadff40000,0x00002aaae2e81170,0x00002aaae63a0000) from space 60160K, 0% used [0x00002aaaeb850000,0x00002aaaeb850000,0x00002aaaef310000) to space 86720K, 0% used [0x00002aaae63a0000,0x00002aaae63a0000,0x00002aaaeb850000) PSOldGen total 699072K, used 699072K [0x00002aaab5490000, 0x00002aaadff40000, 0x00002aaadff40000) object space 699072K, 100% used [0x00002aaab5490000,0x00002aaadff40000,0x00002aaadff40000) PSPermGen total 21248K, used 9252K [0x00002aaab0090000, 0x00002aaab1550000, 0x00002aaab5490000) object space 21248K, 43% used [0x00002aaab0090000,0x00002aaab09993e8,0x00002aaab1550000)

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  • Amazon Product API: "Your request is missing a required parameter combination" on Blended ItemSearch

    - by Daniel Schaffer
    I'm having some problems trying to do an ItemSearch on the Blended index using the Amazon Product API. According to the documentation, Blended requests cannot specify the MerchantId parameter - and indeed, if I try to include it I get an error telling me so. However, when I don't include it, I get an error telling me that my request is missing a required parameter combination and that a valid combination includes MerchantId... what the hell? Here's the XML response: <Items xmlns="http://webservices.amazon.com/AWSECommerceService/2005-10-05"> <Request> <IsValid>False</IsValid> <ItemSearchRequest> <Availability>Available</Availability> <Condition>All</Condition> <Keywords> home theater pc and other geekery</Keywords> <ResponseGroup>Similarities</ResponseGroup> <ResponseGroup>SalesRank</ResponseGroup> <ResponseGroup>OfferSummary</ResponseGroup> <ResponseGroup>Small</ResponseGroup> <ResponseGroup>Images</ResponseGroup> <SearchIndex>Blended</SearchIndex> </ItemSearchRequest> <Errors> <Error> <Code>AWS.MissingParameterCombination</Code> <Message>Your request is missing a required parameter combination. Required parameter combinations include MerchantId, Availability.</Message> </Error> </Errors> </Request> </Items> The failing requests are being sent as part of batches with other requests that are succeeding. I'm using REST to send my requests, so here's an example of a request: http://ecs.amazonaws.com/onca/xml?AWSAccessKeyId=-------------& ItemSearch.1.Keywords=Mates%20of%20State& ItemSearch.1.MerchantId=Amazon& ItemSearch.1.SearchIndex=DVD& ItemSearch.2.Keywords=teaching%20Lily%20various%20computer%20related%20skills& ItemSearch.2.SearchIndex=Blended& ItemSearch.Shared.Availability=Available& ItemSearch.Shared.Condition=All& ItemSearch.Shared.ResponseGroup=Small%2CSalesRank%2CImages%2COfferSummary%2CSimilarities& Operation=ItemSearch%2CSimilarityLookup& Service=AWSECommerceService& SimilarityLookup.1.ItemId=B000FNNHZ2& SimilarityLookup.2.ItemId=B000EQ5UPU& SimilarityLookup.Shared.Availability=Available& SimilarityLookup.Shared.Condition=All& SimilarityLookup.Shared.MerchantId=Amazon& SimilarityLookup.Shared.ResponseGroup=Small%2CSalesRank%2CImages%2COfferSummary& Timestamp=2010-04-02T17%3A18%3A05Z& Signature=---------------- Any ideas as to what I'm doing wrong?

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  • client-side validation in custom validation attribute - asp.net mvc 4

    - by Giorgos Manoltzas
    I have followed some articles and tutorials over the internet in order to create a custom validation attribute that also supports client-side validation in an asp.net mvc 4 website. This is what i have until now: RequiredIfAttribute.cs [AttributeUsage(AttributeTargets.Property, AllowMultiple = true)] //Added public class RequiredIfAttribute : ValidationAttribute, IClientValidatable { private readonly string condition; private string propertyName; //Added public RequiredIfAttribute(string condition) { this.condition = condition; this.propertyName = propertyName; //Added } protected override ValidationResult IsValid(object value, ValidationContext validationContext) { PropertyInfo propertyInfo = validationContext.ObjectType.GetProperty(this.propertyName); //Added Delegate conditionFunction = CreateExpression(validationContext.ObjectType, _condition); bool conditionMet = (bool)conditionFunction.DynamicInvoke(validationContext.ObjectInstance); if (conditionMet) { if (value == null) { return new ValidationResult(FormatErrorMessage(null)); } } return ValidationResult.Success; } private Delegate CreateExpression(Type objectType, string expression) { LambdaExpression lambdaExpression = System.Linq.Dynamic.DynamicExpression.ParseLambda(objectType, typeof(bool), expression); //Added Delegate function = lambdaExpression.Compile(); return function; } public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) { var modelClientValidationRule = new ModelClientValidationRule { ValidationType = "requiredif", ErrorMessage = ErrorMessage //Added }; modelClientValidationRule.ValidationParameters.Add("param", this.propertyName); //Added return new List<ModelClientValidationRule> { modelClientValidationRule }; } } Then i applied this attribute in a property of a class like this [RequiredIf("InAppPurchase == true", "InAppPurchase", ErrorMessage = "Please enter an in app purchase promotional price")] //Added "InAppPurchase" public string InAppPurchasePromotionalPrice { get; set; } public bool InAppPurchase { get; set; } So what i want to do is display an error message that field InAppPurchasePromotionalPrice is required when InAppPurchase field is true (that means checked in the form). The following is the relevant code form the view: <div class="control-group"> <label class="control-label" for="InAppPurchase">Does your app include In App Purchase?</label> <div class="controls"> @Html.CheckBoxFor(o => o.InAppPurchase) @Html.LabelFor(o => o.InAppPurchase, "Yes") </div> </div> <div class="control-group" id="InAppPurchasePromotionalPriceDiv" @(Model.InAppPurchase == true ? Html.Raw("style='display: block;'") : Html.Raw("style='display: none;'"))> <label class="control-label" for="InAppPurchasePromotionalPrice">App Friday Promotional Price for In App Purchase: </label> <div class="controls"> @Html.TextBoxFor(o => o.InAppPurchasePromotionalPrice, new { title = "This should be at the lowest price tier of free or $.99, just for your App Friday date." }) <span class="help-inline"> @Html.ValidationMessageFor(o => o.InAppPurchasePromotionalPrice) </span> </div> </div> This code works perfectly but when i submit the form a full post is requested on the server in order to display the message. So i created JavaScript code to enable client-side validation: requiredif.js (function ($) { $.validator.addMethod('requiredif', function (value, element, params) { /*var inAppPurchase = $('#InAppPurchase').is(':checked'); if (inAppPurchase) { return true; } return false;*/ var isChecked = $(param).is(':checked'); if (isChecked) { return false; } return true; }, ''); $.validator.unobtrusive.adapters.add('requiredif', ['param'], function (options) { options.rules["requiredif"] = '#' + options.params.param; options.messages['requiredif'] = options.message; }); })(jQuery); This is the proposed way in msdn and tutorials i have found Of course i have also inserted the needed scripts in the form: jquery.unobtrusive-ajax.min.js jquery.validate.min.js jquery.validate.unobtrusive.min.js requiredif.js BUT...client side validation still does not work. So could you please help me find what am i missing? Thanks in advance.

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  • WiX 3 Tutorial: Custom EULA License and MSI localization

    - by Mladen Prajdic
    In this part of the ongoing Wix tutorial series we’ll take a look at how to localize your MSI into different languages. We’re still the mighty SuperForm: Program that takes care of all your label color needs. :) Localizing the MSI With WiX 3.0 localizing an MSI is pretty much a simple and straightforward process. First let look at the WiX project Properties->Build. There you can see "Cultures to build" textbox. Put specific cultures to build into the testbox or leave it empty to build all of them. Cultures have to be in correct culture format like en-US, en-GB or de-DE. Next we have to tell WiX which cultures we actually have in our project. Take a look at the first post in the series about Solution/Project structure and look at the Lang directory in the project structure picture. There we have de-de and en-us subfolders each with its own localized stuff. In the subfolders pay attention to the WXL files Loc_de-de.wxl and Loc_en-us.wxl. Each one has a <String Id="LANG"> under the WixLocalization root node. By including the string with id LANG we tell WiX we want that culture built. For English we have <String Id="LANG">1033</String>, for German <String Id="LANG">1031</String> in Loc_de-de.wxl and for French we’d have to create another file Loc_fr-FR.wxl and put <String Id="LANG">1036</String>. WXL files are localization files. Any string we want to localize we have to put in there. To reference it we use loc keyword like this: !(loc.IdOfTheVariable) => !(loc.MustCloseSuperForm) This is our Loc_en-us.wxl. Note that German wxl has an identical structure but values are in German. <?xml version="1.0" encoding="utf-8"?><WixLocalization Culture="en-us" xmlns="http://schemas.microsoft.com/wix/2006/localization" Codepage="1252"> <String Id="LANG">1033</String> <String Id="ProductName">SuperForm</String> <String Id="LicenseRtf" Overridable="yes">\Lang\en-us\EULA_en-us.rtf</String> <String Id="ManufacturerName">My Company Name</String> <String Id="AppNotSupported">This application is is not supported on your current OS. Minimal OS supported is Windows XP SP2</String> <String Id="DotNetFrameworkNeeded">.NET Framework 3.5 is required. Please install the .NET Framework then run this installer again.</String> <String Id="MustCloseSuperForm">Must close SuperForm!</String> <String Id="SuperFormNewerVersionInstalled">A newer version of !(loc.ProductName) is already installed.</String> <String Id="ProductKeyCheckDialog_Title">!(loc.ProductName) setup</String> <String Id="ProductKeyCheckDialogControls_Title">!(loc.ProductName) Product check</String> <String Id="ProductKeyCheckDialogControls_Description">Plese Enter following information to perform the licence check.</String> <String Id="ProductKeyCheckDialogControls_FullName">Full Name:</String> <String Id="ProductKeyCheckDialogControls_Organization">Organization:</String> <String Id="ProductKeyCheckDialogControls_ProductKey">Product Key:</String> <String Id="ProductKeyCheckDialogControls_InvalidProductKey">The product key you entered is invalid. Please call user support.</String> </WixLocalization>   As you can see from the file we can use localization variables in other variables like we do for SuperFormNewerVersionInstalled string. ProductKeyCheckDialog* strings are to localize a custom dialog for Product key check which we’ll look at in the next post. Built in dialog text localization Under the de-de folder there’s also the WixUI_de-de.wxl file. This files contains German translations of all texts that are in WiX built in dialogs. It can be downloaded from WiX 3.0.5419.0 Source Forge site. Download the wix3-sources.zip and go to \src\ext\UIExtension\wixlib. There you’ll find already translated all WiX texts in 12 Languages. Localizing the custom EULA license Here it gets ugly. We can override the default EULA license easily by overriding WixUILicenseRtf WiX variable like this: <WixVariable Id="WixUILicenseRtf" Value="License.rtf" /> where License.rtf is the name of your custom EULA license file. The downside of this method is that you can only have one license file which means no localization for it. That’s why we need to make a workaround. License is checked on a dialog name LicenseAgreementDialog. What we have to do is overwrite that dialog and insert the functionality for localization. This is a code for LicenseAgreementDialogOverwritten.wxs, an overwritten LicenseAgreementDialog that supports localization. LicenseAcceptedOverwritten replaces the LicenseAccepted built in variable. <?xml version="1.0" encoding="UTF-8" ?><Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"> <Fragment> <UI> <Dialog Id="LicenseAgreementDialogOverwritten" Width="370" Height="270" Title="!(loc.LicenseAgreementDlg_Title)"> <Control Id="LicenseAcceptedOverwrittenCheckBox" Type="CheckBox" X="20" Y="207" Width="330" Height="18" CheckBoxValue="1" Property="LicenseAcceptedOverwritten" Text="!(loc.LicenseAgreementDlgLicenseAcceptedCheckBox)" /> <Control Id="Back" Type="PushButton" X="180" Y="243" Width="56" Height="17" Text="!(loc.WixUIBack)" /> <Control Id="Next" Type="PushButton" X="236" Y="243" Width="56" Height="17" Default="yes" Text="!(loc.WixUINext)"> <Publish Event="SpawnWaitDialog" Value="WaitForCostingDlg">CostingComplete = 1</Publish> <Condition Action="disable"> <![CDATA[ LicenseAcceptedOverwritten <> "1" ]]> </Condition> <Condition Action="enable">LicenseAcceptedOverwritten = "1"</Condition> </Control> <Control Id="Cancel" Type="PushButton" X="304" Y="243" Width="56" Height="17" Cancel="yes" Text="!(loc.WixUICancel)"> <Publish Event="SpawnDialog" Value="CancelDlg">1</Publish> </Control> <Control Id="BannerBitmap" Type="Bitmap" X="0" Y="0" Width="370" Height="44" TabSkip="no" Text="!(loc.LicenseAgreementDlgBannerBitmap)" /> <Control Id="LicenseText" Type="ScrollableText" X="20" Y="60" Width="330" Height="140" Sunken="yes" TabSkip="no"> <!-- This is original line --> <!--<Text SourceFile="!(wix.WixUILicenseRtf=$(var.LicenseRtf))" />--> <!-- To enable EULA localization we change it to this --> <Text SourceFile="$(var.ProjectDir)\!(loc.LicenseRtf)" /> <!-- In each of localization files (wxl) put line like this: <String Id="LicenseRtf" Overridable="yes">\Lang\en-us\EULA_en-us.rtf</String>--> </Control> <Control Id="Print" Type="PushButton" X="112" Y="243" Width="56" Height="17" Text="!(loc.WixUIPrint)"> <Publish Event="DoAction" Value="WixUIPrintEula">1</Publish> </Control> <Control Id="BannerLine" Type="Line" X="0" Y="44" Width="370" Height="0" /> <Control Id="BottomLine" Type="Line" X="0" Y="234" Width="370" Height="0" /> <Control Id="Description" Type="Text" X="25" Y="23" Width="340" Height="15" Transparent="yes" NoPrefix="yes" Text="!(loc.LicenseAgreementDlgDescription)" /> <Control Id="Title" Type="Text" X="15" Y="6" Width="200" Height="15" Transparent="yes" NoPrefix="yes" Text="!(loc.LicenseAgreementDlgTitle)" /> </Dialog> </UI> </Fragment></Wix>   Look at the Control with Id "LicenseText” and read the comments. We’ve changed the original license text source to "$(var.ProjectDir)\!(loc.LicenseRtf)". var.ProjectDir is the directory of the project file. The !(loc.LicenseRtf) is where the magic happens. Scroll up and take a look at the wxl localization file example. We have the LicenseRtf declared there and it’s been made overridable so developers can change it if they want. The value of the LicenseRtf is the path to our localized EULA relative to the WiX project directory. With little hacking we’ve achieved a fully localizable installer package.   The final step is to insert the extended LicenseAgreementDialogOverwritten license dialog into the installer GUI chain. This is how it’s done under the <UI> node of course.   <UI> <!-- code to be discussed in later posts –> <!-- BEGIN UI LOGIC FOR CLEAN INSTALLER --> <Publish Dialog="WelcomeDlg" Control="Next" Event="NewDialog" Value="LicenseAgreementDialogOverwritten">1</Publish> <Publish Dialog="LicenseAgreementDialogOverwritten" Control="Back" Event="NewDialog" Value="WelcomeDlg">1</Publish> <Publish Dialog="LicenseAgreementDialogOverwritten" Control="Next" Event="NewDialog" Value="ProductKeyCheckDialog">LicenseAcceptedOverwritten = "1" AND NOT OLDER_VERSION_FOUND</Publish> <Publish Dialog="InstallDirDlg" Control="Back" Event="NewDialog" Value="ProductKeyCheckDialog">1</Publish> <!-- END UI LOGIC FOR CLEAN INSTALLER –> <!-- code to be discussed in later posts --></UI> For a thing that should be simple for the end developer to do, localization can be a bit advanced for the novice WiXer. Hope this post makes the journey easier and that next versions of WiX improve this process. WiX 3 tutorial by Mladen Prajdic navigation WiX 3 Tutorial: Solution/Project structure and Dev resources WiX 3 Tutorial: Understanding main wxs and wxi file WiX 3 Tutorial: Generating file/directory fragments with Heat.exe  WiX 3 Tutorial: Custom EULA License and MSI localization WiX 3 Tutorial: Product Key Check custom action WiX 3 Tutorial: Building an updater WiX 3 Tutorial: Icons and installer pictures WiX 3 Tutorial: Creating a Bootstrapper

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  • Parallelism in .NET – Part 3, Imperative Data Parallelism: Early Termination

    - by Reed
    Although simple data parallelism allows us to easily parallelize many of our iteration statements, there are cases that it does not handle well.  In my previous discussion, I focused on data parallelism with no shared state, and where every element is being processed exactly the same. Unfortunately, there are many common cases where this does not happen.  If we are dealing with a loop that requires early termination, extra care is required when parallelizing. Often, while processing in a loop, once a certain condition is met, it is no longer necessary to continue processing.  This may be a matter of finding a specific element within the collection, or reaching some error case.  The important distinction here is that, it is often impossible to know until runtime, what set of elements needs to be processed. In my initial discussion of data parallelism, I mentioned that this technique is a candidate when you can decompose the problem based on the data involved, and you wish to apply a single operation concurrently on all of the elements of a collection.  This covers many of the potential cases, but sometimes, after processing some of the elements, we need to stop processing. As an example, lets go back to our previous Parallel.ForEach example with contacting a customer.  However, this time, we’ll change the requirements slightly.  In this case, we’ll add an extra conditionif the store is unable to email the customer, we will exit gracefully.  The thinking here, of course, is that if the store is currently unable to email, the next time this operation runs, it will handle the same situation, so we can just skip our processing entirely.  The original, serial case, with this extra condition, might look something like the following: foreach(var customer in customers) { // Run some process that takes some time... DateTime lastContact = theStore.GetLastContact(customer); TimeSpan timeSinceContact = DateTime.Now - lastContact; // If it's been more than two weeks, send an email, and update... if (timeSinceContact.Days > 14) { // Exit gracefully if we fail to email, since this // entire process can be repeated later without issue. if (theStore.EmailCustomer(customer) == false) break; customer.LastEmailContact = DateTime.Now; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Here, we’re processing our loop, but at any point, if we fail to send our email successfully, we just abandon this process, and assume that it will get handled correctly the next time our routine is run.  If we try to parallelize this using Parallel.ForEach, as we did previously, we’ll run into an error almost immediately: the break statement we’re using is only valid when enclosed within an iteration statement, such as foreach.  When we switch to Parallel.ForEach, we’re no longer within an iteration statement – we’re a delegate running in a method. This needs to be handled slightly differently when parallelized.  Instead of using the break statement, we need to utilize a new class in the Task Parallel Library: ParallelLoopState.  The ParallelLoopState class is intended to allow concurrently running loop bodies a way to interact with each other, and provides us with a way to break out of a loop.  In order to use this, we will use a different overload of Parallel.ForEach which takes an IEnumerable<T> and an Action<T, ParallelLoopState> instead of an Action<T>.  Using this, we can parallelize the above operation by doing: Parallel.ForEach(customers, (customer, parallelLoopState) => { // Run some process that takes some time... DateTime lastContact = theStore.GetLastContact(customer); TimeSpan timeSinceContact = DateTime.Now - lastContact; // If it's been more than two weeks, send an email, and update... if (timeSinceContact.Days > 14) { // Exit gracefully if we fail to email, since this // entire process can be repeated later without issue. if (theStore.EmailCustomer(customer) == false) parallelLoopState.Break(); else customer.LastEmailContact = DateTime.Now; } }); There are a couple of important points here.  First, we didn’t actually instantiate the ParallelLoopState instance.  It was provided directly to us via the Parallel class.  All we needed to do was change our lambda expression to reflect that we want to use the loop state, and the Parallel class creates an instance for our use.  We also needed to change our logic slightly when we call Break().  Since Break() doesn’t stop the program flow within our block, we needed to add an else case to only set the property in customer when we succeeded.  This same technique can be used to break out of a Parallel.For loop. That being said, there is a huge difference between using ParallelLoopState to cause early termination and to use break in a standard iteration statement.  When dealing with a loop serially, break will immediately terminate the processing within the closest enclosing loop statement.  Calling ParallelLoopState.Break(), however, has a very different behavior. The issue is that, now, we’re no longer processing one element at a time.  If we break in one of our threads, there are other threads that will likely still be executing.  This leads to an important observation about termination of parallel code: Early termination in parallel routines is not immediate.  Code will continue to run after you request a termination. This may seem problematic at first, but it is something you just need to keep in mind while designing your routine.  ParallelLoopState.Break() should be thought of as a request.  We are telling the runtime that no elements that were in the collection past the element we’re currently processing need to be processed, and leaving it up to the runtime to decide how to handle this as gracefully as possible.  Although this may seem problematic at first, it is a good thing.  If the runtime tried to immediately stop processing, many of our elements would be partially processed.  It would be like putting a return statement in a random location throughout our loop body – which could have horrific consequences to our code’s maintainability. In order to understand and effectively write parallel routines, we, as developers, need a subtle, but profound shift in our thinking.  We can no longer think in terms of sequential processes, but rather need to think in terms of requests to the system that may be handled differently than we’d first expect.  This is more natural to developers who have dealt with asynchronous models previously, but is an important distinction when moving to concurrent programming models. As an example, I’ll discuss the Break() method.  ParallelLoopState.Break() functions in a way that may be unexpected at first.  When you call Break() from a loop body, the runtime will continue to process all elements of the collection that were found prior to the element that was being processed when the Break() method was called.  This is done to keep the behavior of the Break() method as close to the behavior of the break statement as possible. We can see the behavior in this simple code: var collection = Enumerable.Range(0, 20); var pResult = Parallel.ForEach(collection, (element, state) => { if (element > 10) { Console.WriteLine("Breaking on {0}", element); state.Break(); } Console.WriteLine(element); }); If we run this, we get a result that may seem unexpected at first: 0 2 1 5 6 3 4 10 Breaking on 11 11 Breaking on 12 12 9 Breaking on 13 13 7 8 Breaking on 15 15 What is occurring here is that we loop until we find the first element where the element is greater than 10.  In this case, this was found, the first time, when one of our threads reached element 11.  It requested that the loop stop by calling Break() at this point.  However, the loop continued processing until all of the elements less than 11 were completed, then terminated.  This means that it will guarantee that elements 9, 7, and 8 are completed before it stops processing.  You can see our other threads that were running each tried to break as well, but since Break() was called on the element with a value of 11, it decides which elements (0-10) must be processed. If this behavior is not desirable, there is another option.  Instead of calling ParallelLoopState.Break(), you can call ParallelLoopState.Stop().  The Stop() method requests that the runtime terminate as soon as possible , without guaranteeing that any other elements are processed.  Stop() will not stop the processing within an element, so elements already being processed will continue to be processed.  It will prevent new elements, even ones found earlier in the collection, from being processed.  Also, when Stop() is called, the ParallelLoopState’s IsStopped property will return true.  This lets longer running processes poll for this value, and return after performing any necessary cleanup. The basic rule of thumb for choosing between Break() and Stop() is the following. Use ParallelLoopState.Stop() when possible, since it terminates more quickly.  This is particularly useful in situations where you are searching for an element or a condition in the collection.  Once you’ve found it, you do not need to do any other processing, so Stop() is more appropriate. Use ParallelLoopState.Break() if you need to more closely match the behavior of the C# break statement. Both methods behave differently than our C# break statement.  Unfortunately, when parallelizing a routine, more thought and care needs to be put into every aspect of your routine than you may otherwise expect.  This is due to my second observation: Parallelizing a routine will almost always change its behavior. This sounds crazy at first, but it’s a concept that’s so simple its easy to forget.  We’re purposely telling the system to process more than one thing at the same time, which means that the sequence in which things get processed is no longer deterministic.  It is easy to change the behavior of your routine in very subtle ways by introducing parallelism.  Often, the changes are not avoidable, even if they don’t have any adverse side effects.  This leads to my final observation for this post: Parallelization is something that should be handled with care and forethought, added by design, and not just introduced casually.

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  • SQL Server and Hyper-V Dynamic Memory - Part 1

    - by SQLOS Team
    SQL and Dynamic Memory Blog Post Series   Hyper-V Dynamic Memory is a new feature in Windows Server 2008 R2 SP1 that allows the memory assigned to guest virtual machines to vary according to demand. Using this feature with SQL Server is supported, but how well does it work in an environment where available memory can vary dynamically, especially since SQL Server likes memory, and is not very eager to let go of it? The next three posts will look at this question in detail. In Part 1 Serdar Sutay, a program manager in the Windows Hyper-V team, introduces Dynamic Memory with an overview of the basic architecture, configuration and monitoring concepts. In subsequent parts we will look at SQL Server memory handling, and develop some guidelines on using SQL Server with Dynamic Memory.   Part 1: Dynamic Memory Introduction   In virtualized environments memory is often the bottleneck for reaching higher VM densities. In Windows Server 2008 R2 SP1 Hyper-V introduced a new feature “Dynamic Memory” to improve VM densities on Hyper-V hosts. Dynamic Memory increases the memory utilization in virtualized environments by enabling VM memory to be changed dynamically when the VM is running.   This brings up the question of how to utilize this feature with SQL Server VMs as SQL Server performance is very sensitive to the memory being used. In the next three posts we’ll discuss the internals of Dynamic Memory, SQL Server Memory Management and how to use Dynamic Memory with SQL Server VMs.   Memory Utilization Efficiency in Virtualized Environments   The primary reason memory is usually the bottleneck for higher VM densities is that users tend to be generous when assigning memory to their VMs. Here are some memory sizing practices we’ve heard from customers:   ·         I assign 4 GB of memory to my VMs. I don’t know if all of it is being used by the applications but no one complains. ·         I take the minimum system requirements and add 50% more. ·         I go with the recommendations provided by my software vendor.   In reality correctly sizing a virtual machine requires significant effort to monitor the memory usage of the applications. Since this is not done in most environments, VMs are usually over-provisioned in terms of memory. In other words, a SQL Server VM that is assigned 4 GB of memory may not need to use 4 GB.   How does Dynamic Memory help?   Dynamic Memory improves the memory utilization by removing the requirement to determine the memory need for an application. Hyper-V determines the memory needed by applications in the VM by evaluating the memory usage information in the guest with Dynamic Memory. VMs can start with a small amount of memory and they can be assigned more memory dynamically based on the workload of applications running inside.   Overview of Dynamic Memory Concepts   ·         Startup Memory: Startup Memory is the starting amount of memory when Dynamic Memory is enabled for a VM. Dynamic Memory will make sure that this amount of memory is always assigned to the VMs by default.   ·         Maximum Memory: Maximum Memory specifies the maximum amount of memory that a VM can grow to with Dynamic Memory. ·         Memory Demand: Memory Demand is the amount determined by Dynamic Memory as the memory needed by the applications in the VM. In Windows Server 2008 R2 SP1, this is equal to the total amount of committed memory of the VM. ·         Memory Buffer: Memory Buffer is the amount of memory assigned to the VMs in addition to their memory demand to satisfy immediate memory requirements and file cache needs.   Once Dynamic Memory is enabled for a VM, it will start with the “Startup Memory”. After the boot process Dynamic Memory will determine the “Memory Demand” of the VM. Based on this memory demand it will determine the amount of “Memory Buffer” that needs to be assigned to the VM. Dynamic Memory will assign the total of “Memory Demand” and “Memory Buffer” to the VM as long as this value is less than “Maximum Memory” and as long as physical memory is available on the host.   What happens when there is not enough physical memory available on the host?   Once there is not enough physical memory on the host to satisfy VM needs, Dynamic Memory will assign less than needed amount of memory to the VMs based on their importance. A concept known as “Memory Weight” is used to determine how much VMs should be penalized based on their needed amount of memory. “Memory Weight” is a configuration setting on the VM. It can be configured to be higher for the VMs with high performance requirements. Under high memory pressure on the host, the “Memory Weight” of the VMs are evaluated in a relative manner and the VMs with lower relative “Memory Weight” will be penalized more than the ones with higher “Memory Weight”.   Dynamic Memory Configuration   Based on these concepts “Startup Memory”, “Maximum Memory”, “Memory Buffer” and “Memory Weight” can be configured as shown below in Windows Server 2008 R2 SP1 Hyper-V Manager. Memory Demand is automatically calculated by Dynamic Memory once VMs start running.     Dynamic Memory Monitoring    In Windows Server 2008 R2 SP1, Hyper-V Manager displays the memory status of VMs in the following three columns:         ·         Assigned Memory represents the current physical memory assigned to the VM. In regular conditions this will be equal to the sum of “Memory Demand” and “Memory Buffer” assigned to the VM. When there is not enough memory on the host, this value can go below the Memory Demand determined for the VM. ·         Memory Demand displays the current “Memory Demand” determined for the VM. ·         Memory Status displays the current memory status of the VM. This column can represent three values for a VM: o   OK: In this condition the VM is assigned the total of Memory Demand and Memory Buffer it needs. o   Low: In this condition the VM is assigned all the Memory Demand and a certain percentage of the Memory Buffer it needs. o   Warning: In this condition the VM is assigned a lower memory than its Memory Demand. When VMs are running in this condition, it’s likely that they will exhibit performance problems due to internal paging happening in the VM.    So far so good! But how does it work with SQL Server?   SQL Server is aggressive in terms of memory usage for good reasons. This raises the question: How do SQL Server and Dynamic Memory work together? To understand the full story, we’ll first need to understand how SQL Server Memory Management works. This will be covered in our second post in “SQL and Dynamic Memory” series. Meanwhile if you want to dive deeper into Dynamic Memory you can check the below posts from the Windows Virtualization Team Blog:   http://blogs.technet.com/virtualization/archive/2010/03/18/dynamic-memory-coming-to-hyper-v.aspx   http://blogs.technet.com/virtualization/archive/2010/03/25/dynamic-memory-coming-to-hyper-v-part-2.aspx   http://blogs.technet.com/virtualization/archive/2010/04/07/dynamic-memory-coming-to-hyper-v-part-3.aspx   http://blogs.technet.com/b/virtualization/archive/2010/04/21/dynamic-memory-coming-to-hyper-v-part-4.aspx   http://blogs.technet.com/b/virtualization/archive/2010/05/20/dynamic-memory-coming-to-hyper-v-part-5.aspx   http://blogs.technet.com/b/virtualization/archive/2010/07/12/dynamic-memory-coming-to-hyper-v-part-6.aspx   - Serdar Sutay   Originally posted at http://blogs.msdn.com/b/sqlosteam/

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  • SQL Server and Hyper-V Dynamic Memory - Part 1

    - by SQLOS Team
    SQL and Dynamic Memory Blog Post Series   Hyper-V Dynamic Memory is a new feature in Windows Server 2008 R2 SP1 that allows the memory assigned to guest virtual machines to vary according to demand. Using this feature with SQL Server is supported, but how well does it work in an environment where available memory can vary dynamically, especially since SQL Server likes memory, and is not very eager to let go of it? The next three posts will look at this question in detail. In Part 1 Serdar Sutay, a program manager in the Windows Hyper-V team, introduces Dynamic Memory with an overview of the basic architecture, configuration and monitoring concepts. In subsequent parts we will look at SQL Server memory handling, and develop some guidelines on using SQL Server with Dynamic Memory.   Part 1: Dynamic Memory Introduction   In virtualized environments memory is often the bottleneck for reaching higher VM densities. In Windows Server 2008 R2 SP1 Hyper-V introduced a new feature “Dynamic Memory” to improve VM densities on Hyper-V hosts. Dynamic Memory increases the memory utilization in virtualized environments by enabling VM memory to be changed dynamically when the VM is running.   This brings up the question of how to utilize this feature with SQL Server VMs as SQL Server performance is very sensitive to the memory being used. In the next three posts we’ll discuss the internals of Dynamic Memory, SQL Server Memory Management and how to use Dynamic Memory with SQL Server VMs.   Memory Utilization Efficiency in Virtualized Environments   The primary reason memory is usually the bottleneck for higher VM densities is that users tend to be generous when assigning memory to their VMs. Here are some memory sizing practices we’ve heard from customers:   ·         I assign 4 GB of memory to my VMs. I don’t know if all of it is being used by the applications but no one complains. ·         I take the minimum system requirements and add 50% more. ·         I go with the recommendations provided by my software vendor.   In reality correctly sizing a virtual machine requires significant effort to monitor the memory usage of the applications. Since this is not done in most environments, VMs are usually over-provisioned in terms of memory. In other words, a SQL Server VM that is assigned 4 GB of memory may not need to use 4 GB.   How does Dynamic Memory help?   Dynamic Memory improves the memory utilization by removing the requirement to determine the memory need for an application. Hyper-V determines the memory needed by applications in the VM by evaluating the memory usage information in the guest with Dynamic Memory. VMs can start with a small amount of memory and they can be assigned more memory dynamically based on the workload of applications running inside.   Overview of Dynamic Memory Concepts   ·         Startup Memory: Startup Memory is the starting amount of memory when Dynamic Memory is enabled for a VM. Dynamic Memory will make sure that this amount of memory is always assigned to the VMs by default.   ·         Maximum Memory: Maximum Memory specifies the maximum amount of memory that a VM can grow to with Dynamic Memory. ·         Memory Demand: Memory Demand is the amount determined by Dynamic Memory as the memory needed by the applications in the VM. In Windows Server 2008 R2 SP1, this is equal to the total amount of committed memory of the VM. ·         Memory Buffer: Memory Buffer is the amount of memory assigned to the VMs in addition to their memory demand to satisfy immediate memory requirements and file cache needs.   Once Dynamic Memory is enabled for a VM, it will start with the “Startup Memory”. After the boot process Dynamic Memory will determine the “Memory Demand” of the VM. Based on this memory demand it will determine the amount of “Memory Buffer” that needs to be assigned to the VM. Dynamic Memory will assign the total of “Memory Demand” and “Memory Buffer” to the VM as long as this value is less than “Maximum Memory” and as long as physical memory is available on the host.   What happens when there is not enough physical memory available on the host?   Once there is not enough physical memory on the host to satisfy VM needs, Dynamic Memory will assign less than needed amount of memory to the VMs based on their importance. A concept known as “Memory Weight” is used to determine how much VMs should be penalized based on their needed amount of memory. “Memory Weight” is a configuration setting on the VM. It can be configured to be higher for the VMs with high performance requirements. Under high memory pressure on the host, the “Memory Weight” of the VMs are evaluated in a relative manner and the VMs with lower relative “Memory Weight” will be penalized more than the ones with higher “Memory Weight”.   Dynamic Memory Configuration   Based on these concepts “Startup Memory”, “Maximum Memory”, “Memory Buffer” and “Memory Weight” can be configured as shown below in Windows Server 2008 R2 SP1 Hyper-V Manager. Memory Demand is automatically calculated by Dynamic Memory once VMs start running.     Dynamic Memory Monitoring    In Windows Server 2008 R2 SP1, Hyper-V Manager displays the memory status of VMs in the following three columns:         ·         Assigned Memory represents the current physical memory assigned to the VM. In regular conditions this will be equal to the sum of “Memory Demand” and “Memory Buffer” assigned to the VM. When there is not enough memory on the host, this value can go below the Memory Demand determined for the VM. ·         Memory Demand displays the current “Memory Demand” determined for the VM. ·         Memory Status displays the current memory status of the VM. This column can represent three values for a VM: o   OK: In this condition the VM is assigned the total of Memory Demand and Memory Buffer it needs. o   Low: In this condition the VM is assigned all the Memory Demand and a certain percentage of the Memory Buffer it needs. o   Warning: In this condition the VM is assigned a lower memory than its Memory Demand. When VMs are running in this condition, it’s likely that they will exhibit performance problems due to internal paging happening in the VM.    So far so good! But how does it work with SQL Server?   SQL Server is aggressive in terms of memory usage for good reasons. This raises the question: How do SQL Server and Dynamic Memory work together? To understand the full story, we’ll first need to understand how SQL Server Memory Management works. This will be covered in our second post in “SQL and Dynamic Memory” series. Meanwhile if you want to dive deeper into Dynamic Memory you can check the below posts from the Windows Virtualization Team Blog:   http://blogs.technet.com/virtualization/archive/2010/03/18/dynamic-memory-coming-to-hyper-v.aspx   http://blogs.technet.com/virtualization/archive/2010/03/25/dynamic-memory-coming-to-hyper-v-part-2.aspx   http://blogs.technet.com/virtualization/archive/2010/04/07/dynamic-memory-coming-to-hyper-v-part-3.aspx   http://blogs.technet.com/b/virtualization/archive/2010/04/21/dynamic-memory-coming-to-hyper-v-part-4.aspx   http://blogs.technet.com/b/virtualization/archive/2010/05/20/dynamic-memory-coming-to-hyper-v-part-5.aspx   http://blogs.technet.com/b/virtualization/archive/2010/07/12/dynamic-memory-coming-to-hyper-v-part-6.aspx   - Serdar Sutay   Originally posted at http://blogs.msdn.com/b/sqlosteam/

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  • To have a long life with the battery it has to be separated from the Laptop after each use

    - by laptopo1 dsad
    To have a long life with the battery it has to be separated from the Laptop after each use Developing a Laptop and concern about it's battery life Don't be concerned follow this advice how to deal with your Laptop battery. A fresh power supply of your Laptop can be purchased in a very low charge condition, and must be fully charged before use. A different battery pack needs to be fully charged and fully discharged or cycled as much as five times to condition them into performing at full capacity. And also refer your manual instructions of one's Laptop for charging instructions. Inspiron 15z battery Tips: Unplug battery after use: To have a long life with the battery it has to be separated from the Laptop after each use. Clean battery contacts often: Clean your battery's metal contacts once in a month with a cloth moistened with rubbing alcohol. This prevents the transfer of power out of your battery additional efficient. Turn off the WiFi and Bluetooth, in any other case being used: Usually, we activate our WiFi or Bluetooth for whatever reason and tend to forget to Off it, that could spark a huge relieve your battery, Shut off right after the usage. Dell XPS L501x battery Dim notebook screen: When you're with your Laptop in Daytime, you will need for full brightness. But also in case of Night, just dim the screen reducing brightness, which will consume more charge once the brightness might be more and also It's essential on your eyes to determine lesser brighten screen inside nights. Dell Inspiron 17R battery Have hardly any Background programs: Letting more programs to own behind the screen could consume more Dell Inspiron N4010 battery charge hence have very few without background programs are Better. Make use of the Hard disk drive more than CD/DVD drive: Making use of disc drive instead your CD/DVD drive could consume less battery power. Latitude E5400 Battery

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  • TakeWhile and SkipWhile method in LINQ

    - by vik20000in
     In my last post I talked about how to use the take and the Skip keyword to filter out the number of records that we are fetching. But there is only problem with the take and skip statement. The problem lies in the dependency where by the number of records to be fetched has to be passed to it. Many a times the number of records to be fetched is also based on the query itself. For example if we want to continue fetching records till a certain condition is met on the record set. Let’s say we want to fetch records from the array of number till we get 7. For this kind of query LINQ has exposed the TakeWhile Method.     int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };     var firstNumbersLessThan6 = numbers.TakeWhile(n => n < 7);   In the same way we can also use the SkipWhile statement. The skip while statement will skip all the records that do not match certain condition provided. In the example below we are skiping all those number which are not divisible by 3. Remember we could have done this with where clause also, but SkipWhile method can be useful in many other situation and hence the example and the keyword.     int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };     var allButFirst3Numbers = numbers.SkipWhile(n => n % 3 != 0); Vikram

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  • Paper Gold Rush

    - by Chris G. Williams
    The last few days at the shop have been reminiscent of a marathon of Pawn Stars. Quite a few people have come in wanting to trade for store credit. Most of them have left disappointed. We did pick up a few things here and there (which hopefully I can sell.) The problem, in a nutshell, is that people get it in their head that a (YuGiOh) card is worth X amount because they looked it up 2-3 years a...go, or someone told them it was valuable... then they play it in their deck for a year without sleeves, and cram it in a binder covered in duct tape. By the time they bring the cards in to me, new sets have come out which often de-value the tournament usefulness of the card from $20 to *maybe* 50 cents, in mint condition. Which means I can offer them about 10-15 cents... only they are almost never in mint condition, which means I usually offer them nothing at all. Most of the time, you can watch their smile fade as I start going through their cards. It's kinda sad, really, since I know they think they've spent the last two years walking around with the keys to their own personal gold mine. I don't really enjoy seeing that look on a child's face. I like kids and I remember those moments when perception and reality crashed headlong into each other. It was seldom pretty. So, when I'm talking to a child, I try to take it easy on them and give them some suggestions on how to better preserve their cards. Sometimes though, it's an adult. Depending on the situation, my response to them varies pretty broadly. Most of the time though, I still feel pretty bad when it doesn't go their way.

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