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2477557 - Queries get stuck in 'execute' state - SAP ASE

Symptom

  • User process gets stuck in execute state and never completes
  • CPU to spikes to 100%
  • The procedure cache eventually fills

dbcc stacktrace shows:

Stacktrace:pc: 0x000000000167ba4f upyield+0x3ef()
EquivClass::eqcSelectCandidates(OptList<CtrPtr <PopBase> >*)
SsNeHyPerm::_SsNeHyPsEvalNCostOrdTree(Node<Lop>*, SeHyPermStrat*)
SsNeHyPerm::SsNeEvalMinorState(Node<Lop>*, SearchEngine*)
SearchStratNodeElem::SsNeFindOptimal(Node<Lop>*, SearchEngine*)
....

DBCC execution completed. If DBCC printed error messages, contact a user with System Administrator (SA) role.


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • OS Linux

Product

SAP Adaptive Server Enterprise 15.7

Keywords

query does not ends compilation, outer join, view materialization, CR804411, CR#804411, 804411, hang , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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