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3009705 - Network Handler is not getting scheduled - SAP ASE

Symptom

Server hang without messages in the log. Memory dump indicates a NETWORK HANDLER process was runnable and in an engine local run queue, but not getting scheduled to run. This was holding everything up.

The stack trace on memory dump:
 
=====

kpsuspend
upyield
uppushaffinity
kboflushcache
kboalloc
ksallocsocket
soc_nopen
listener

=====


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7 SP141 (EBF 29330 / ONE-OFF)
  • AIX

Product

SAP Adaptive Server Enterprise 15.7

Keywords

ELC engine local cache runnable run queue socket SOCKTAB Network Handler not getting scheduled hang hung hangs freeze stuck kpsuspend upyield uppushaffinity kboflushcache kboalloc ksallocsocket soc_nopen listener CR 823822 CR823822 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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