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3772995 - HK WASH stuck in plc__lock due to not waking up causing latch sleep - SAP ASE

Symptom

  • Lots of ASE processes are in "latch sleeping" state. Stacktrace look like below:

upsleepgeneric
smp_bufpredirty
dol_expand_shift
dol__delete_insert
dol__update_datapage
dol_update
update
LeUpdateOp::_LeOpNext(ExeCtxt&)
LeEmitNoSndOp::_LeOpNext(ExeCtxt&)
LePlanNext
exec_lava
s_execute

  • CHECKPOINT process also stuck on $dmpxact with below stacktrace:

upsleepgeneric
cm__waitfor_io
cm_writedes
bufwritedes
des_checkpoint
checkpoint
dmpx_truncatemain
ckpt_process_dbs
ckptproc


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Environment

SAP Adaptive Server Enterprise (ASE) 16.0 SP04 PL04 and higher

Product

SAP Adaptive Server Enterprise 16.0

Keywords

CR832154, CR#832154, 832154, stuck in plc__lock, HK WASH  , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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