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Karthick P.K on SQL Server

Posts Tagged ‘SQL General’

Non-yielding IOCP Listener, Non-yielding Scheduler and non-yielding resource monitor known issues and fixes

Posted by Karthick P.K on August 21, 2012

Do you see below errors in SQL error along with dumps and stuck?

Non-yielding IOCP Listener

* BEGIN STACK DUMP:
*   05/06/12 03:54:59 spid 0
* Non-yielding IOCP Listener

Non-yielding Scheduler
* BEGIN STACK DUMP:
*   04/16/12 10:09:58 spid 6256
* Non-yielding Scheduler

Non-yielding Resource Monitor

* BEGIN STACK DUMP

*   01/22/09 19:11:16 spid 0

* Non-yielding Resource Monitor

External dump process returned no errors.
Date Time Server Process 0:0:0 (0x31e8) Worker 0x000000016F41d140 appears to be non-yielding on Scheduler 4. Thread creation time: 12010668087858. Approx Thread CPU Used: kernel 2 ms, user 60516 ms. Process Utilization 11%. System Idle 83%. Interval: 71227 ms.

Refer “How to analyze Non-Yielding scheduler or Non-yielding IOCP Listener dumps”  for analyzing the Non-yielding Scheduler, Non-yielding IOCP Listener and Non-yielding Resource Monitor Dumps.

If you are interested in just finding a quick resolution follow the below steps to get the Non-Yield stack from the dump and check if it is matching with any existing known issues in SQL Server. 

To analyze the dump download and Install Windows Debugger from This  link

Step 1:

Open Windbg

step 2:

Choose File menu –> select Open crash dump –>Select the Dump file (SQLDump000#.mdmp)

Step 3:

on command window type    
.sympath srv*c:\Websymbols*http://msdl.microsoft.com/download/symbols;

Step 4:

Type .reload /f and hit enter. This will force debugger to immediately load all the symbols.

Step 5:

Type  .cxr sqlservr!g_copiedStackInfo+0X20   for SQL Server2005 and SQL Server2008/2008R2  (or)   .cxr sqlmin!g_copiedStackInfo+0X20  for SQL Server2012.

Type kc 100 and look at the stack to see if it matches with the stack of any of known issues in SQL Server listed below.

If kc 100 doesn’t display any stack and throws “WARNING: Frame IP not in any known module. Following frames may be wrong”  type .cxr to reset to default scope and try  .cxr sqlservr!g_copiedStackInfo+0X00c (In 32-Bit (X86)  SQL server valid offset for context is 0X00c Look at This blog to see how we identified the offset)

Note:If your stack doesn’t match with any of the stack  listed below then paste the stack in comments session of this blog (or) In This face book group.We will try to find the cause for you. If you don’t get any prompt reply from the community, you may need to open a support ticket with Microsoft.

 

Stack 1

sqlservr!COptExpr::DetachPointersIntoMemo

sqlservr!COptExpr::DetachPointersIntoMemo

sqlservr!COptExpr::DetachPointersIntoMemo

sqlservr!COptExpr::DetachPointersIntoMemo

sqlservr!COptContext::PcxteOptimizeQuery

sqlservr!CQuery::Optimize

sqlservr!CQuery::PqoBuild

sqlservr!CStmtQuery::InitQuery

sqlservr!CStmtDML::InitNormal

sqlservr!CStmtDML::Init

sqlservr!CCompPlan::FCompileStep

sqlservr!CSQLSource::FCompile

sqlservr!CSQLSource::FCompWrapper

sqlservr!CSQLSource::Transform

sqlservr!CSQLSource::Execute

sqlservr!ExecuteSql

sqlservr!CSpecProc::ExecuteSpecial

sqlservr!CXProc::Execute

sqlservr!CSQLSource::Execute

sqlservr!CStmtExecProc::XretLocalExec

sqlservr!CStmtExecProc::XretExecExecute

sqlservr!CXStmtExecProc::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

KB :2344600:FIX: "Non-yielding Scheduler" error may occur when you use the CONTAINSTABLE function together with many OR and AND predicates in SQL Server 2008 or in SQL Server 2008 R2

Stack 2

sqlservr!TMatchPattern

sqlservr!FMatchStrTxt

sqlservr!I8CharindexStrBhI8

sqlservr!CEs::GeneralEval4

sqlservr!CXStmtCond::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,0>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands 0x12a

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadInitThunk

ntdll!RtlUserThreadStart

2633357 FIX: "Non-yielding Scheduler" error might occur when you run a query that uses the CHARINDEX function in SQL Server 2008 R2

Stack 3

sqlservr!CItvlVal::Copy

sqlservr!CConstraintItvl::PcnstrItvlUnion

sqlservr!CConstraintProp::FBuildItvlFromOr

sqlservr!CConstraintProp::FBuildItvlFromPexpr

sqlservr!CConstraintProp::FAndItvlConstraint

sqlservr!CConstraintProp::AndNewConstraint

sqlservr!CConstraintProp::PcnstrDeriveSelect

sqlservr!CLogOp_Select::PcnstrDerive

sqlservr!CLogOpArg::PcnstrDeriveHandler

sqlservr!CLogOpArg::DeriveGroupProperties

sqlservr!COpArg::DeriveNormalizedGroupProperties

sqlservr!COptExpr::DeriveGroupProperties

sqlservr!COptExpr::DeriveGroupProperties 0xc6

sqlservr!COptExpr::DeriveGroupProperties

sqlservr!CQuery::PqoBuild

sqlservr!CStmtQuery::InitQuery

sqlservr!CStmtDML::InitNormal

sqlservr!CStmtDML::Init

sqlservr!CCompPlan::FCompileStep

sqlservr!CSQLSource::FCompile

sqlservr!CSQLSource::FCompWrapper

sqlservr!CSQLSource::Transform

KB: 982376 FIX: A non-yielding scheduler error or an error 8623 occurs when you run a query that contains a large IN clause in SQL Server 2005,SQL Server 2008, or SQL Server 2008 R2

Stack 4

sqlservr!COptExpr::AdjustParallelPlan

sqlservr!COptContext::PcxteOptimizeQuery

sqlservr!CQuery::Optimize

sqlservr!CQuery::PqoBuild

sqlservr!CStmtQuery::InitQuery

sqlservr!CStmtSelect::Init

sqlservr!CCompPlan::FCompileStep

sqlservr!CSQLSource::FCompile

sqlservr!CSQLSource::FCompWrapper

sqlservr!CSQLSource::Transform

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

KB: 943060 FIX: A query that has many outer joins takes a long time to compile in SQL Server 2005

Stack 5

sqlservr!CXid::GetBlockingTask

sqlservr!SNode::SearchForDeadlock

sqlservr!DeadlockMonitor::SearchForDeadlock

sqlservr!DeadlockMonitor::SearchAndResolve

sqlservr!DeadlockMonitor::SearchTaskAndResolve

sqlservr!DeadlockMonitor::WorkLoop

sqlservr!lockMonitor

sqlservr!lockMonitorThread

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

956854 Cumulative update package 10 for SQL Server 2005 Service Pack 2

Stack 6

ntdll!ZwQueryAttributesFile

ntdll!RtlDoesFileExists_UstrEx

ntdll!LdrpSearchPath

ntdll!LdrpCheckForLoadedDll

ntdll!LdrpLoadDll

ntdll!LdrLoadDll

kernel32!LoadLibraryExW

mswsock!SockLoadHelperDll

mswsock!SockGetTdiName

mswsock!SockSocket

mswsock!WSPSocket

ws2_32!WSASocketW

ws2_32!WSASocketA

sqlservr!CreateSocket

sqlservr!AcceptObject::AsyncAccept

sqlservr!Tcp::AcceptDone

sqlservr!SNIAcceptDoneWithReturnCode

sqlservr!SNIAcceptDoneWrapper

sqlservr!SNIAcceptDoneRouter

sqlservr!SOS_Node::ListenOnIOCompletionPort

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

KB 2711549 FIX: An error message is logged when you start SQL Server 2008 R2 or when a client sends a request to SQL Server 2008 R2

Stack 7

ntdll!ZwOpenKey

advapi32!LocalBaseRegOpenKey

advapi32!RegOpenKeyExW

sqlservr!COledbConnect::GetProviderOptions

sqlservr!COledbConnect::SetClsidFromProvider

sqlservr!COledbConnect::Init

sqlservr!CStmtExecProc::XretRemoteExec

sqlservr!CRemoteProcExecLevel::Execute

sqlservr!CStmtExecProc::XretWrapRemoteExec

sqlservr!CStmtExecProc::XretExecExecute

sqlservr!CXStmtExec::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CStmtExecProc::XretLocalExec

sqlservr!CStmtExecProc::XretExecExecute

KB2468047 FIX: Error code 17883 or "Non-yielding Scheduler" error may occur when you use the OPENQUERY function on SQL Server 2005

Stack 8

ntdll!ZwQueryVirtualMemory

psapi!QueryWorkingSetEx

sqlservr!BPool::Shrink

sqlservr!BPool::ReleaseAwayBufs

sqlservr!BPool::LazyWriter

sqlservr!lazywriter

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

967908 Cumulative update package 13 for SQL Server 2005 Service Pack 2 or 970279 Cumulative update package 4 for SQL Server 2005 Service Pack 3

Stack 9

sqlservr!LatchBase::ReleaseInternal

sqlservr!XVB::GetRecord

sqlservr!RowsetVersionScan::GetData

sqlservr!CQScanRowsetNew::GetRowWithPrefetch

sqlservr!CQScanRowsetNew::GetRow

sqlservr!CQScanNLJoinNew::GetRowHelper

sqlservr!CQScanNLJoinNew::GetRow

sqlservr!CQScanNLJoinNew::GetRowHelper

sqlservr!CQScanNLJoinNew::GetRow

sqlservr!CQueryScan::GetRow

sqlservr!CXStmtQuery::InitForExecute

sqlservr!CXStmtQuery::ErsqExecuteQuery

sqlservr!CXStmtCondWithQuery::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CXStmtDML::FExecTrigger

sqlservr!CXStmtDML::FExecAllTriggers

sqlservr!CXStmtDML::XretDMLExecute

sqlservr!CXStmtDML::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<0,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CStmtPrepQuery::XretExecute

sqlservr!CExecuteStatement::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CStmtExecStr::XretExecStrExecute

sqlservr!CXStmtExecStr::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

KB : 949595 FIX: Error message when you run a query that uses a join condition in SQL Server 2005: "Non-yielding Scheduler"

Stack 10

sqlservr!SQLServerLogIter::LookupScanCache

sqlservr!SQLServerLogIterForward::GetNextBlock

sqlservr!SQLServerLogIterForward::GetNext

sqlservr!LsMgr::GetEndOfLog

sqlservr!LsMgr::ProcessInternalRollForward

sqlservr!LsWorkRequest::Execute

sqlservr!LsWorker::ThreadRoutine

sqlservr!LsWorker::ThreadRoutine

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadStart

KB 970044 FIX: Error message when you try to break database mirroring between two servers that are running SQL Server 2008: "Non-yielding Scheduler"

Stack 11

sqlservr!CLinkedMap

sqlservr!CCheckReadersAndWriters::Release

sqlservr!CMainIlb::~CMainIlb

sqlservr!CBlobHandleFactoryMain::ReleaseILockBytes

sqlservr!CMainIlb::Release

sqlservr!CTraceRpcBinaryStream::~CTraceRpcBinaryStream

sqlservr!CTraceTvpData::~CTraceTvpData

sqlservr!CRpcTraceHelper::CleanUpTraceTvpData

sqlservr!CRpcTraceHelper::TracePostExec

sqlservr!CRPCExecEnv::OnExecFinish

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!endthreadex

msvcr80!endthreadex

kernel32!BaseThreadInitThunk

ntdll!RtlUserThreadStart

KB 2520808 FIX: Non-yielding scheduler error when you run a query that uses a TVP in SQL Server 2008 or in SQL Server 2008 R2 if SQL Profiler or SQL Server Extended Events is used

Stack 12

ntdll!ZwFreeVirtualMemory

KERNELBASE!VirtualFree

sqlservr!MemoryNode::VirtualFree

sqlservr!ReservedMemBlock::FreeMemory

sqlservr!MultiPageAllocator::FreePagesInternal

sqlservr!MultiPageAllocator::FreePages

sqlservr!MemoryNode::FreePagesInternal

sqlservr!MemoryClerkInternal::FreePagesInline

sqlservr!CVarPageMgr::Release

sqlservr!CMemObj::Free

sqlservr!CMemThread<CMemObj>::Free

sqlservr!LockBytesSS::~LockBytesSS

sqlservr!LockBytesHolder::`scalar deleting destructor’

sqlservr!LockBytesHolder::DestroyCallback

sqlservr!CacheLbss

sqlservr!LockBytesSS::Release

sqlservr!CQueryIlb::~CQueryIlb

sqlservr!CBlobHandleFactoryMain::ReleaseILockBytes

sqlservr!CMainIlb::Release

sqlservr!CTraceRpcBinaryStream::~CTraceRpcBinaryStream

sqlservr!CTraceTvpData::~CTraceTvpData

sqlservr!CRpcTraceHelper::CleanUpTraceTvpData

sqlservr!CRpcTraceHelper::TracePostExec

sqlservr!CRPCExecEnv::OnExecFinish

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!endthreadex

msvcr80!endthreadex

kernel32!BaseThreadInitThunk

ntdll!RtlUserThreadStart

KB 2520808 FIX: Non-yielding scheduler error when you run a query that uses a TVP in SQL Server 2008 or in SQL Server 2008 R2 if SQL Profiler or SQL Server Extended Events is used

Stack 13

sqlservr!CompareStringWEnglishNoCase

sqlservr!CTypeInfo::ICompW

sqlservr!CDefaultCollation::ICompW

sqlservr!CDependElem::ICompare

sqlservr!CDependList::Find

sqlservr!CDependList::Insert

sqlservr!CDependList::Concat

sqlservr!CDependList::CollectDependencies

sqlservr!FillSysdepends

sqlservr!CProchdr::CreateProc

sqlservr!CSQLSource::PerformPphFakeExecute

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadInitThunk

ntdll!RtlUserThreadStart

KB 2306162 FIX: Poor performance and some occasional non-yielding scheduler errors occur when you create a complex view that references a large amount of nested views or tables in SQL Server 2008 or in SQL Server 2008 R2

Stack 14

sqlservr!BaseSharedHoBt::GetHoBtId

sqlservr!HoBtFactory::GetDeferredDropCacheHobt

sqlservr!DropDeferredWorkTables

sqlservr!GhostRecordCleanupTask

sqlservr!CGhostCleanupTask::ProcessTskPkt

sqlservr!TaskReqPktTimer::ExecuteTask

sqlservr!OnDemandTaskContext::ProcessTskPkt

sqlservr!SystemTaskContext::ExecuteFunc

sqlservr!SystemTaskEntryPoint

sqlservr!OnDemandTaskContext::FuncEntryPoint

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SchedulerManager::FiberEntryPoint

kernel32!BaseFiberStart

kernel32!RtlCompareMemoryStub

KB 2505256 FIX: Poor performance when worktables that are marked for deferred drop are cleaned up in SQL Server 2008 R2

Stack 15

ntdll!ZwReadFile

kernel32!ReadFile

sqlservr!DiskReadAsync

sqlservr!FCB::AsyncRead

sqlservr!BackupIoRequest::StartDatabaseRead

sqlservr!BackupCopyMachine::CopyFileToBackupSet0

sqlservr!BackupCopyMachine::CopyFileToBackupSet

KB 960543 FIX: SQL Server 2005 or SQL Server 2008 may stop responding when you are performing a backup

Stack 16

sqlservr!Worker::ProfilingCPUTicks::ProfilingCpuTicksCallback

sqlservr!SOS_Scheduler::TaskTransition

sqlservr!SOS_Scheduler::Switch

sqlservr!SOS_Scheduler::SuspendNonPreemptive

sqlservr!SOS_Scheduler::Suspend

sqlservr!SOS_Task::Sleep

sqlservr!BTreeMgr::Seek

sqlservr!BTreeMgr::GetHPageIdWithKey

sqlservr!IndexPageManager::GetPageWithKey

sqlservr!GetRowForKeyValue

sqlservr!IndexRowScanner::EstablishInitialKeyOrderPosition

sqlservr!IndexDataSetSession::GetNextRowValuesInternal

sqlservr!RowsetNewSS::GetNextRows

sqlservr!CMEDScan::FGetRow

sqlservr!CMEDCatalogOwner::GetOwnerAliasIdFromSid

sqlservr!CMEDCatalogOwner::LookupPrimaryIdInCatalog

sqlservr!CMEDCacheEntryFactory::GetProxiedCacheEntryByAltKey

sqlservr!CMEDCatalogOwner::GetProxyOwnerBySID

sqlservr!CMEDProxyDatabase::GetOwnerBySID

sqlservr!GetDefaultSchemaIdCrossDb

sqlservr!GetCtxtSchemaId

sqlservr!CMEDAccess::GetMultiNameObject

sqlservr!CRangeObject::CImplName::FSameObject

sqlservr!CRangeObject::FCheckImplNames

sqlservr!CRangeObject::XretPostSchemaChecks

sqlservr!CRangeObject::XretSchemaChanged

sqlservr!CRangeTable::XretSchemaChanged

sqlservr!CEnvCollection::XretSchemaChanged

sqlservr!CXStmtQuery::XretSchemaChanged

sqlservr!CXStmtSelect::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CStmtExecProc::XretLocalExec

sqlservr!CStmtExecProc::XretExecExecute

sqlservr!CXStmtExecProc::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

KB 2699013 FIX: SQL Server 2008 R2 or SQL Server 2008 stops responding and a "Non-yielding Scheduler" error is logged

Stack 17

sqlservr!CQScanNLJoinNew::GetRowHelper

sqlservr!CQScanNLJoinNew::GetRowHelper

sqlservr!CQueryScan::GetRow

sqlservr!CXStmtQuery::ErsqExecuteQuery

sqlservr!CXStmtCondWithQuery::XretExecute

sqlservr!CExecStmtLoopVars::ExecuteXStmtAndSetXretReturn

sqlservr!CMsqlExecContext::ExecuteStmts<1,0>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CXStmtDML::FExecTrigger

sqlservr!CXStmtDML::FExecAllTriggers

sqlservr!CXStmtDML::XretDMLExecute

sqlservr!CXStmtDML::XretExecute

sqlservr!CExecStmtLoopVars::ExecuteXStmtAndSetXretReturn

sqlservr!CMsqlExecContext::ExecuteStmts<0,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!CStmtPrepQuery::XretExecute

sqlservr!CMsqlExecContext::ExecuteStmts<1,1>

sqlservr!CMsqlExecContext::FExecute

sqlservr!CSQLSource::Execute

sqlservr!process_request

sqlservr!process_commands

sqlservr!SOS_Task::Param::Execute

sqlservr!SOS_Scheduler::RunTask

sqlservr!SOS_Scheduler::ProcessTasks

sqlservr!SchedulerManager::WorkerEntryPoint

sqlservr!SystemThread::RunWorker

sqlservr!SystemThreadDispatcher::ProcessWorker

sqlservr!SchedulerManager::ThreadEntryPoint

msvcr80!_callthreadstartex

msvcr80!_threadstartex

kernel32!BaseThreadInitThunk

KB 967169 FIX: When you run an UPDATE statement against a table that has a FOR UPDATE trigger that joins the DELETED and INSERTED tables, the query takes a long time to finish

Stack 18

msvcr80!memcpy

BackupString::vswcatf

BackupString::swcatf

BackupHistory::GenerateBackupDetails

sqlservr!BackupHistory::GenerateBackupSet

KB 917971 FIX: You may receive more than 100,000 page faults when you try to back up a SQL Server 2005 database that contains hundreds of files and file groups.

Stack 20

mswsock!SockCloseSocket
mswsock!WSPCloseSocket
ws2_32!closesocket
sqlservr!Tcp::FCloseRefHandle
sqlservr!Tcp::Close
sqlservr!Smux::InternalClose
sqlservr!Smux::ReadDone

"Non-yielding Scheduler" error and SQL Server 2008 or SQL Server 2008 R2 stops responding intermittently in Windows Server 2008 or in Windows Server 2008 R2

Stack 21

mswsock!SockCloseSocket
mswsock!WSPCloseSocket
ws2_32!closesocket
sqlservr!Tcp::FCloseRefHandle
sqlservr!Tcp::Close
sqlservr!Smux::InternalClose
sqlservr!Smux::ReadDone

"Non-yielding Scheduler" error and SQL Server 2008 or SQL Server 2008 R2 stops responding intermittently in Windows Server 2008 or in Windows Server 2008 R2

 

Related blogs: 

SQL Server Exception , EXCEPTION_ACCESS_VIOLATION and SQL Server Assertion

How to analyze Non-Yielding scheduler or Non-yielding IOCP Listener dumps ……

SQL Server Latch & Debugging latch time out

How to Analyze "Deadlocked Schedulers" Dumps

 

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Thank you,

Karthick P.K |My Facebook Page |My Site| Blog space| Twitter

Disclaimer:

The views expressed on this website/blog are mine alone and do not reflect the views of my company or anyone else. All postings on this blog are provided “AS IS” with no warranties, and confers no rights

Posted in Debugging, Performance, SQL General, SQL Server Tools | Tagged: , , , , , , , , , , , , , , , , , , , , , , , , , , , | 158 Comments »

How to rebuild index and update statistics for all the tables in database.

Posted by Karthick P.K on September 26, 2010

 
EXEC sp_MSforeachtable 'UPDATE STATISTICS ? WITH FULLSCAN'   --  {can be run anytime}

Exec sp_MSforeachtable "dbcc dbreindex('?')"      --- {Always run this on a off-peak hour on any SQL Server instance}
 

Thanks

Karthick

Posted in Optimizer, Performance, SQL General, SQL Query | Tagged: , , , , | 3 Comments »

Different Status bits of sysdatabases in SQLServer

Posted by Karthick P.K on April 11, 2009

Sysdatabases.status and sysdatabases.status2 Bit of Sysdatabases in SQLServer
======================================================

<Script1>

declare @status int;
declare @status2 int;

Set  @status=’65544′  –Replace your DB status here
set @status2=’1090520064′ –Replace your DB status2 here

SELECT CASE (@status & 1) WHEN 1 THEN 1 ELSE 0 END AS autoclose,
CASE (@status & 4) WHEN 4 THEN 1 ELSE 0 END AS selectintobulkcopy,
CASE (@status & 8) WHEN 8 THEN 1 ELSE 0 END AS trunclogonchkpt,
CASE (@status & 16) WHEN 16 THEN 1 ELSE 0 END AS tornpagedetection,
CASE (@status & 32) WHEN 32 THEN 1 ELSE 0 END AS loading, CASE (@status & 64) WHEN 64 THEN 1 ELSE 0 END AS prerecovery, CASE (@status & 128) WHEN 128 THEN 1 ELSE 0 END AS recovering, CASE (@status & 256) WHEN 256 THEN 1 ELSE 0 END AS notrecovered, CASE (@status & 512) WHEN 512 THEN 1 ELSE 0 END AS offline, CASE (@status & 1024) WHEN 1024 THEN 1 ELSE 0 END AS readonly, CASE (@status & 2048) WHEN 2048 THEN 1 ELSE 0 END AS dbouseonly, CASE (@status & 4096) WHEN 4096 THEN 1 ELSE 0 END AS singleuser, CASE (@status & 32768) WHEN 32768 THEN 1 ELSE 0 END AS emergencymode,
CASE (@status & 4194304) WHEN 4194304 THEN 1 ELSE 0 END AS autoshrink, CASE (@status & 1073741824) WHEN 1073741824 THEN 1 ELSE 0 END AS cleanlyshutdown,
CASE (@status2 & 16384) WHEN 16384 THEN 1 ELSE 0 END AS ansinulldefault, CASE (@status2 & 65536) WHEN 65536 THEN 1 ELSE 0 END AS concatnullyieldsnull,
CASE (@status2 & 131072) WHEN 131072 THEN 1 ELSE 0 END AS recursivetriggers, CASE (@status2 & 1048576) WHEN 1048576 THEN 1 ELSE 0 END AS defaulttolocalcursor,
CASE (@status2 & 8388608) WHEN 8388608 THEN 1 ELSE 0 END AS quotedidentifier, CASE (@status2 & 33554432) WHEN 33554432 THEN 1 ELSE 0 END AS cursorcloseoncommit,
CASE (@status2 & 67108864) WHEN 67108864 THEN 1 ELSE 0 END AS ansinulls, CASE (@status2 & 268435456) WHEN 268435456 THEN 1 ELSE 0 END AS ansiwarnings,
CASE (@status2 & 536870912) WHEN 536870912 THEN 1 ELSE 0 END AS fulltextenabled

</Script1>

 

=================================================================================================================

<Script2>

SELECT substring(name, 1, 50) as dbname, cmptlevel, filename, version, CASE (status & 1) WHEN 1 THEN 1 ELSE 0 END AS autoclose,
CASE (status & 4) WHEN 4 THEN 1 ELSE 0 END AS selectintobulkcopy,
CASE (status & 8) WHEN 8 THEN 1 ELSE 0 END AS trunclogonchkpt,
CASE (status & 16) WHEN 16 THEN 1 ELSE 0 END AS tornpagedetection,
CASE (status & 32) WHEN 32 THEN 1 ELSE 0 END AS loading, CASE (status & 64) WHEN 64 THEN 1 ELSE 0 END AS prerecovery, CASE (status & 128) WHEN 128 THEN 1 ELSE 0 END AS recovering, CASE (status & 256) WHEN 256 THEN 1 ELSE 0 END AS notrecovered, CASE (status & 512) WHEN 512 THEN 1 ELSE 0 END AS offline, CASE (status & 1024) WHEN 1024 THEN 1 ELSE 0 END AS readonly, CASE (status & 2048) WHEN 2048 THEN 1 ELSE 0 END AS dbouseonly, CASE (status & 4096) WHEN 4096 THEN 1 ELSE 0 END AS singleuser, CASE (status & 32768) WHEN 32768 THEN 1 ELSE 0 END AS emergencymode,
CASE (status & 4194304) WHEN 4194304 THEN 1 ELSE 0 END AS autoshrink, CASE (status & 1073741824) WHEN 1073741824 THEN 1 ELSE 0 END AS cleanlyshutdown,
CASE (status2 & 16384) WHEN 16384 THEN 1 ELSE 0 END AS ansinulldefault, CASE (status2 & 65536) WHEN 65536 THEN 1 ELSE 0 END AS concatnullyieldsnull,
CASE (status2 & 131072) WHEN 131072 THEN 1 ELSE 0 END AS recursivetriggers, CASE (status2 & 1048576) WHEN 1048576 THEN 1 ELSE 0 END AS defaulttolocalcursor,
CASE (status2 & 8388608) WHEN 8388608 THEN 1 ELSE 0 END AS quotedidentifier, CASE (status2 & 33554432) WHEN 33554432 THEN 1 ELSE 0 END AS cursorcloseoncommit,
CASE (status2 & 67108864) WHEN 67108864 THEN 1 ELSE 0 END AS ansinulls, CASE (status2 & 268435456) WHEN 268435456 THEN 1 ELSE 0 END AS ansiwarnings,
CASE (status2 & 536870912) WHEN 536870912 THEN 1 ELSE 0 END AS fulltextenabled FROM sysdatabases where name = ‘master’
go
SELECT fileid, name, filename, size, maxsize, growth, groupid
FROM sysaltfiles WHERE dbid IN ( SELECT dbid FROM sysdatabases where name = ‘ Replace DB Name’ )
go
SELECT fileid, name, filename, size, maxsize, growth, groupid FROM sysfiles
go
SELECT groupid, groupname, CASE (status & 0x8) WHEN 0x8 THEN 1 ELSE 0 END AS readonly,
CASE (status & 0x10) WHEN 0x10 THEN 1 ELSE 0 END AS isdefault FROM sysfilegroups WHERE groupid IN ( SELECT groupid FROM sysaltfiles a, sysdatabases b WHERE a.dbid = b.dbid AND b.name = ‘Replace DB Name’ )

</Script2>

 

Regards

Karthick P.K

Posted in SQL General | Tagged: , , , | 7 Comments »

Installation of SQLServer2008 fails (The registry key SYSTEM\CurrentControlSet\Services\RsFx0102\InstancesShares is missing)

Posted by Karthick P.K on April 10, 2009

Installation of SQLServer2008 might fail with below error

Detailed results:
Feature:                       Database Engine Services
Status:                        Failed: see logs for details
MSI status:                    Passed
Configuration status:          Failed: see details below
Configuration error code:      0xCD263ADC@1306@30
Configuration error description: The registry key SYSTEM\CurrentControlSet\Services\RsFx0102\InstancesShares is missing.
Configuration log:             C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20090410_153833\Detail.txt

To resolve this issue:

Create a new KEY with name   InstancesShares under registry path

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\Services\RsFx0102\

Uninstall the failed Database engine components and reinstall the SQLServer 2008 instance after restarting the system.

Regards

Karthick P.K

Posted in SQL General | Tagged: | 2 Comments »

Installation of SQLserver2008 cluster fails on windows2008.(The group or resource is not in the correct state to perform the requested operation. (Exception from HRESULT: 0x8007139F)

Posted by Karthick P.K on March 26, 2009

Installation of SQLserver2008 cluster might fail on windows2008 with error mentioned below

The cluster resource ‘SQL Server’ could not be brought online.
Error: The group or resource is not in the correct state to perform the requested operation. (Exception from HRESULT: 0x8007139F)

 

Root Cause

This problem occurs because of a new security feature named Loopback check functionality. By default, loopback check functionality is turned ON in Windows and the value of the DisableLoopbackCheck registry entry is set to 0 (zero).
http://support.microsoft.com/kb/957097/

With this feature being turned ON: windows do not allow NTLM authentication if we try to access server from Local server using a name which is not its Net-Bios name (or) IPAddress.

When SQL Server Agent is started, SQL Agent resource access the SQL Server using SQL  VirtualServer name and hence we do not allow NTLM. So the SQL Server Agent would fail and the SQLServer Agent Resource creation would also fail.

SQL Server resource will fail to come Online because, IsAlive check will be done using NTLM Authentication i.e: Cluster service startup account resolves as NT AUTHORITY\ANONYMOUS LOGON when connecting to SQL Server for IsAlive check and the connection fails.

We will not get in to this issue if startup account of SQL Server has permissions to read and write SPN’s.

After the installation fails you will see the SQL Server resource is created but not the SQL Agent resource.

There are three ways to resolve this issue.

Option 1

1. After the failure, create the SPN’s manually using SetSPN tool (or) Configure SQL Server service to create SPNs dynamically for the SQL Server instances (Refer KB: 811889)

Example for creating SPN’s manually:
SETSPN -A MSSQLSVC/VSName.XX.XX.EDU:1433
SETSPN -A MSSQLSVC/VSName.XX.XX.EDU

2. Bring the SQL Server Resource online.

3. Create the SQL Server Agent resource type.

{
To add the sql server agent resource type execute the below command:

cluster restype “SQL Server Agent” /create /DLL:sqagtres.dll .Once done we got the
update that the Resource type ‘SQL Server Agent’ created.
}

4. Create SQL Server agent resource manually.

We need to make sure that the newly created SQL server Agent resource have the virtualservername and Instance name .

To add this property go to “failover cluster management” ==>SQL Server Agent Resource==>Properties==>properties
check for the two parameters (virtualservername and Instancename) and fill in the
details.

}

5. Change configuration reg_dword values of all components to 1 in below registry path

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQLX.MSSQLSERVER\ConfigurationState

Option 2

1. Do a Complete uninstall of failed installation (or) Configure SQL Server service to create SPNs dynamically for the SQL Server instances (Refer KB: 811889) and move to Step 3.

2. Create the SPN’s before we do the installation. —

Example:
SETSPN -A MSSQLSVC/VSName.XX.XX.EDU:1433
SETSPN -A MSSQLSVC/VSName.XX.XX.EDU

Note:Beginning with SQL Server 2008, the SPN format is changed and new SPN format does not require a port number Refer: http://msdn.microsoft.com/en-us/library/ms191153.aspx

3. Then install the SQL Server on cluster

Option 3 (Recommended)

1. Disable the authentication loopback check by setting the DisableLoopbackCheck value in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa registry subkey to 1.
To set the DisableLoopbackCheck registry entry to 1, follow below steps on all nodes of cluster.

a. Click Start, click Run, type regedit, and then click OK.
b. Locate the following registry path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
c. Right-click Lsa, select New, and then click DWORD Value.
d. Type DisableLoopbackCheck, and then press ENTER.
e. Right-click DisableLoopbackCheck, and then click Modify.
f. In the Value data box, type 1, and then click OK.

2. Restart the system.

3. Do complete uninstall and re-run the setup(or) Follow the steps from step2 in option 1.

 

Note:

1. We will encounter above error if we are installing the named instance of SQL Server and SQL Server browser is in stopped state. 

2.  If you have installed SQLServer 2012 (Denali) and uninstalled it on same cluster. You might encounter above issue. Refer below link for   details.

https://mssqlwiki.com/2012/01/31/sql-server-resource-fails-to-come-online-is-alive-check-fails/

Regards

Karthick P.K

Posted in SQL Cluster Setup, SQL General, SQL Server Setup | Tagged: , , , , , , | 8 Comments »

Using DMVs to find out the index usage history- SQLServer Index Usage

Posted by Karthick P.K on March 10, 2009

SQLserver 2005 ships with a set of DMVs that can help you identify the missing indexes for your workload, Analyze the effectiveness of the existing ones and help find out index fragmentation.

Using DMVs to find out the index usage history

Over a period of time, you could create a lot of indexes on your tables and modify existing ones. However, in SQL 2000, you couldn’t estimate how effective were each of these indexes. Poorly design indexes could lead to performance overhead instead of enhancing performance.

In SQL 2005, you can query the sys.dm_db_index_usage_stats DMV to find out the indexes that have NEVER been used since the last start of SQL Server. You can use the following query to find that out:

 1: select object_name(i.object_id) as ObjectName,

 

 2: i.name as IndexName, s.user_updates, s.user_seeks, s.user_scans,

 

 3: s.user_lookups

 

 4: from sys.indexes i

 

 5: left join sys.dm_db_index_usage_stats s

 

 6: on s.object_id = i.object_id and i.index_id = s.index_id and s.database_id =

 

 7: <dbid>

 

 8: where objectproperty(i.object_id, 'IsIndexable') = 1 and

 

 9: -- index_usage_stats has no reference to this index (not being used)

 

 10: s.index_id is null or

 

 11: -- index is being updated, but not used by seeks/scans/lookups

 

 12: (s.user_updates > 0 and s.user_seeks = 0

 

 13: and s.user_scans = 0 and s.user_lookups = 0)

 

 14: order by object_name(i.object_id) asc

 

In the output, you will ALL the indexes that have never been used by any sort of workload on your server, since the last start of SQL Server.

For indexes that have NEVER been used (either for a SELECT or a DML statement), all columns will be NULL

For indexes that have NEVER been used (for a SELECT), but had to be updated due to a DML statement, the user_updates column will be >0, while other columns will be 0. It is these indexes that could cause severe performance overhead for your DML statements and might be worth dropping.

Give ample time for SQL Server to get exposed to all the workload after a restart, before running this query.

Using DMVs to find out missing indexes

When the query optimizer generates a query plan, it analyzes what are the best indexes for a particular filter condition. If the best indexes do not exist, the query optimizer generates a suboptimal query plan, but still stores information about these indexes. The missing indexes feature enables you to access information about these indexes so you can decide whether they should be implemented.

For more information on how to use this feature, please visit the following link

http://msdn2.microsoft.com/en-us/library/ms345417.aspx

 

Using DMVs to find out index fragmentation

The sys.dm_db_index_physical_stats dynamic management function replaces the DBCC SHOWCONTIG statement.

You can learn more about using this DMV to identify fragmentation, correcting it and possibly automating this activity for your server by visiting the following link:

http://msdn2.microsoft.com/en-us/library/ms188917.aspx

Regards

Karthick P.K

Posted in Performance, SQL General | Tagged: | 1 Comment »

 
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