Symptom
UPDATE or DELETE statements may cause a server crash during THG Tier merging in hs_ohc::DoPushDown() or hs_ohc::ForceInsertProbeAll
You will see a stack trace similar to one of the following:
Dump all thread stacks at stcxtlib/st_server.cxx:1707 for PID: 42358
***************** This is the STACKTRACE ***************
===== Thread Number 140269639345920 (IQ connID: 0000000694) =====
...
pc: 0x7f930f26448f SigHndlr+0x4f
pc: 0x395820f710
pc: 0x7f930ee85c26 hs_ohc::ForceInsertProbeAll(unsigned long long*)+0x66
pc: 0x7f930eeb8845 hs_ohc::DoPushDown()+0x25
pc: 0x7f930eeb8dac hs_ohc::CheckTierThreshold()+0x1cc
pc: 0x7f930eeb8b01 hs_ohc::DoMerge()+0x61
...
Dump all thread stacks at stcxtlib/st_server.cxx:1707 for PID: 42358
***************** This is the STACKTRACE ***************
===== Thread Number 140269639345920 (IQ connID: 0000000694) =====
...
.. hs_ohc::CheckTierThreshold()+0x1cc
.. hs_ohc::DoMerge()+0x61
.. hs_ohcUpdate::Complete()+0x589
.. db_UpdateCompleteIterator::CompleteIndex(s_indexUpdate*)+0x64
.. db_UpdateCompleteIterator::ExecWork(int&, unsigned int)+0x85
.. workAllocator::DoWork(unsigned int)+0xba
.. hos_team::StartWork(void (*)+0xce
...
Read more...
Environment
SAP IQ 16
Product
Keywords
KBA , BC-SYB-IQ , Sybase IQ , Problem
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