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2737615 - Dumps are hanging when 'enable dump history' is enabled - SAP ASE

Symptom

  • One or more dump database and/or dump transaction commands are sleeping and not finishing
    • A dbcc stacktrace on the sleeping dump transaction command will look something like this

upsleepgeneric
dmpld_wait_lock_hist_file
dmpld_upd_dump_history_file
dmpx_truncatemain
dmpxact

    • A dbcc stacktrace on a sleeping dump database command will look something like this

upsleepgeneric
dmpld_wait_lock_hist_file
dmpld__add_dump_record

  • The stored procedure sp_dump_history is being executed to purge history and it is not completing
    • A dbcc stacktrace on the sleeping sp_dump_history spid might look something like this

upsleepgeneric
fio__p_sema
ufopen
dmpld__read_and_expire_history
dmpld_purge_dump_hist

    • Alternate dbcc stacktrace on the sleeping sp_dump_history spid might look something like this

upsleepgeneric
dmpld_wait_lock_hist_file
dmpld_save_dmphistfd
dmpld_write_dump_record
dmpld__read_and_expire_history
dmpld_purge_dump_hist

  • A timeslice message is seen in the SAP ASE errorlog with the failure in the module write and a stacktrace similar to this

ufwrite
ufprintf
dmpld_write_dump_record
dmpld__read_and_expire_history
dmpld_purge_dump_hist

  • In cases of the sleeping spids, a kill of the sleeping spid will not be responsive and a reboot is necessary to clear them.
  • The configuration parameter "enable dump history" is enabled.


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Environment

  • SAP Adaptive Server Enterprise 16.0 (ASE)
  • SAP Adaptive Server Enterprise 15.7 (ASE)

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

CR817868, CR#817868, 817868, dumphist, purge_dump_history, deadlock , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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