Hi everyone - we've been seeing a recurring issue (onve a week) in our Sharepoint environment. Our IIS server (see specs below) usually runs at about 5% total CPU utilization the entire day. Sometimes -usually mid-day -we see the server spiking to 100% CPU utilization, showing that three w3wp.exe processes are using up the entire CPU resources (Memory usage for those processes remains the same at about 200MB each). The server then becomes unresponsive requiring us to hard reboot. Occassionally, it may resolve itself without a reboot after about 10 - 15 minutes or utilization may temporarily drop enough for us to log-in remotely and reset IIS, fixing the issue. It's difficult to determine the root cause for this one. Nothing specific in the event logs at all (i.e. connection to DBs seems fine). We've tried tracing long-running DBqueriesbut it's hard to determine whether they are a cause or a result. We have our monitoring groups and Microsoft Premier engaged who really don't know what is going on. Any assistance would be appreciated. Thanks! Specs: WSS/SPS 2.0 SP2 1 x IIS Server: Windows 2003, SP1 4 x Intel Xeon 2.2 GHz 9GB RAM Running indexing and search 2 x SQL Servers: Server 2003, SP1 SQL 2000 EnterpriseSP4 21 Content Databases between the two servers. Each content DB is <10GB, except one which is 170GB (was our first one)

Download the "debug diagnostics" tool from Microsoft's support site. That tool will give you nice errorreporting when you have it set to monitor the SharePoint w3wp.exe process.

We had something similar happen to us.. no idea if this is what is affecting you, but I thought I'd share it here. We were finding that at about 1pm (on most days), the CPU went to 80-90% and when we went to the event logs, we saw that the app pool was recycyling every minute. This caused very poor performance, as the first time you try to hit the site after a recycle, its very slow. The server had 8 gig of RAM was it was confusing. Turns out that the app pool was set to automatically recycle when it started using about 800 meg of memory (its a setting on the properties on the app pool). So about mid day (after people got back from lunch and everyone from offices all over the country were in the office and working), it was needing more memory to handle the requests. But when it got to 800 meg, it was recycling (as it was told to do). We removed that "checkbox" on the properties and let it handle the recycling by itself and the problems went away. FYI.

jdb_1715 wrote: We had something similar happen to us.. no idea if this is what is affecting you, but I thought I'd share it here. We were finding that at about 1pm (on most days), the CPU went to 80-90% and when we went to the event logs, we saw that the app pool was recycyling every minute. This caused very poor performance, as the first time you try to hit the site after a recycle, its very slow. The server had 8 gig of RAM was it was confusing. Turns out that the app pool was set to automatically recycle when it started using about 800 meg of memory (its a setting on the properties on the app pool). So about mid day (after people got back from lunch and everyone from offices all over the country were in the office and working), it was needing more memory to handle the requests. But when it got to 800 meg, it was recycling (as it was told to do). We removed that "checkbox" on the properties and let it handle the recycling by itself and the problems went away. FYI. Yeah, we're not using thememrecycling in the AppPools. Ironically enough, we are using the limit CPU utilization setting but the processes aren't shutting down when they reach the defined max utilization of 40%. Thanks for the feedback though.

NETDEV wrote: Download the "debug diagnostics" tool from Microsoft's support site. That tool will give you nice errorreporting when you have it set to monitor the SharePoint w3wp.exe process. Thanks. Checking this out.

I have the similiar problem and my report are:Thread 20 - System ID 5920 Entry point msvcrt!_endthreadex+2f Create time 3/4/2009 7:44:40 AM Time spent in user mode 0 Days 00:23:47.968 Time spent in kernel mode 0 Days 01:14:14.390 This thread is making a database operation using ADO. The call to MSADO15!CERRORLOOKUP::GETERRORDESCRIPTION originated from oledb32!CImpIErrorInfo::GetSource+9f Function Source ntdll!KiFastSystemCallRet ntdll!NtQueryDefaultUILanguage+c ntdll!GetUILangID+2d ntdll!LdrpSearchResourceSection_U+186 ntdll!LdrFindResource_U+18 kernel32!FindResourceExW+65 user32!LoadStringOrError+31 user32!LoadStringW+18 msado15!FetchInfo+ba msado15!CErrorLookup::GetErrorDescription+20 oledb32!CImpIErrorInfo::GetSource+9f msado15!CContext::FailedInvoke+9f msado15!CFieldsDispatch::Invoke+27b vbscript!IDispatchInvoke2+b2 vbscript!IDispatchInvoke+59 vbscript!InvokeDispatch+13a vbscript!InvokeByName+42 vbscript!CScriptRuntime::RunNoEH+22b2 vbscript!CScriptRuntime::Run+62 vbscript!CScriptEntryPoint::Call+51 vbscript!CSession::Execute+b4 vbscript!COleScript::ExecutePendingScripts+144 vbscript!COleScript::SetScriptState+14d asp!CActiveScriptEngine::TryCall+19 asp!CActiveScriptEngine::Call+31 asp!CallScriptFunctionOfEngine+5b asp!ExecuteRequest+17e asp!Execute+24c asp!CHitObj::ViperAsyncCallback+3f0 asp!CViperAsyncRequest::OnCall+92 comsvcs!CSTAActivityWork::STAActivityWorkHelper+32 ole32!EnterForCallback+c4 ole32!SwitchForCallback+1a3 ole32!PerformCallback+54 ole32!CObjectContext::InternalContextCallback+159 ole32!CObjectContext::DoCallback+1c comsvcs!CSTAActivityWork::DoWork+12d comsvcs!CSTAThread::DoWork+18 comsvcs!CSTAThread::ProcessQueueWork+37 comsvcs!CSTAThread::WorkerLoop+190 msvcrt!_endthreadex+a3 kernel32!BaseThreadStart+34 Thread 51 - System ID 4764 Entry point msvcrt!_endthreadex+2f Create time 3/4/2009 10:10:29 AM Time spent in user mode 0 Days 00:00:22.812 Time spent in kernel mode 0 Days 00:00:44.937 This thread is making a database operation using ADO. The call to MSADO15!CERRORLOOKUP::GETHELPINFO originated from oledb32!CImpIErrorInfo::GetHelpContext+98 Function Source ntdll!KiFastSystemCallRet ntdll!NtQueryDefaultUILanguage+c ntdll!GetUILangID+2d ntdll!LdrAlternateResourcesEnabled+5 ntdll!LdrLoadAlternateResourceModule+5a ntdll!LdrpSearchResourceSection_U+200 ntdll!LdrFindResource_U+18 kernel32!FindResourceExW+65 user32!LoadStringOrError+31 user32!LoadStringW+18 msado15!FetchInfo+ba msado15!CErrorLookup::GetHelpInfo+1e oledb32!CImpIErrorInfo::GetHelpContext+98 msado15!CContext::FailedInvoke+92 msado15!CRecordset::Invoke+832 vbscript!IDispatchInvoke2+b2 vbscript!IDispatchInvoke+59 vbscript!InvokeDispatch+13a vbscript!InvokeByName+42 vbscript!CScriptRuntime::RunNoEH+234c vbscript!CScriptRuntime::Run+62 vbscript!CScriptEntryPoint::Call+51 vbscript!CSession::Execute+b4 vbscript!COleScript::ExecutePendingScripts+144 vbscript!COleScript::SetScriptState+14d asp!CActiveScriptEngine::TryCall+19 asp!CActiveScriptEngine::Call+31 asp!CallScriptFunctionOfEngine+5b asp!ExecuteRequest+17e asp!Execute+24c asp!CHitObj::ViperAsyncCallback+3f0 asp!CViperAsyncRequest::OnCall+92 comsvcs!CSTAActivityWork::STAActivityWorkHelper+32 ole32!EnterForCallback+c4 ole32!SwitchForCallback+1a3 ole32!PerformCallback+54 ole32!CObjectContext::InternalContextCallback+159 ole32!CObjectContext::DoCallback+1c comsvcs!CSTAActivityWork::DoWork+12d comsvcs!CSTAThread::DoWork+18 comsvcs!CSTAThread::ProcessQueueWork+37 comsvcs!CSTAThread::WorkerLoop+190 msvcrt!_endthreadex+a3 kernel32!BaseThreadStart+34 How i found the root problem?

Did someone solve this problem? I have the same error and couldn't fix. tks a lot!

Try out Process Explorer (http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx). Look for thread and context switches. Sameer Dhoot My Blog : http://sharemypoint.in/ Did I answer your question? If YES, Mark as Answer. If NO, reply with details to continue dialogue.