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2888789 - IQ crashed at at stcxtlib/st_txncb.cxx:5160 exception at st_txncb::_checkpointLock - SAP IQ


Rarely, customers may experience an assertion failure in module st_txncb.cxx with a stack trace similar to the following:

.. hos_memmgr::AllocHosMem.. 
... operator new.. 
.. st_txncb::CheckpointLock.. 
.. st_txnMgr::Checkpoint.. 
.. db_Checkpoint::Execute..

This problem will occur with the following message:

  • All available virtual memory has been used; allocation cancelled



  • SAP IQ 16.1
  • SAP Dynamic Tiering
  • SAP IQ NLS 16.1


SAP HANA dynamic tiering 2.0 ; SAP IQ 16.1


IQ, HANA, NLS, memory, st_txncb.cxx, virtual, allocation, _checkpointLock , KBA , BC-SYB-IQ , Sybase IQ , BW-SYS-DB-IQ , BW on HANA with Sybase IQ Near-line Storage , HAN-DYT , SAP HANA Dynamic Tiering , Bug Filed

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