Diameter Signaling Router (DSR): Connection Failure on DA-MPs Due to EXGSTACK_Process Abterm in stackTaskName=DeirReqTask
(Doc ID 2607826.1)
Last updated on FEBRUARY 13, 2020
Applies to:Oracle Communications Diameter Signaling Router (DSR) - Version DSR 8.3.0 to DSR 8.4.0 [Release DSR 8.0]
Information in this document applies to any platform.
On a regular approx. 31 day interval basis, the dsr process (EXGSTACK_Process) may experience an abnormal termination (abterm) causing all connections on the DA-MP to fail, then recover after the process respawns. In the Alarms and Events History log, Event 31003 can be seen indicating "Thread watchdog expired for thread ID #### (taskName=StackTask, stackTaskName=DeirReqTask)" An example:
NAME Thread Watchdog Failure
DESCRIPTION Thread watchdog timed out
ERR_INFO GN_EXPIRED/WRN Thread watchdog expired for thread ID 58769 (taskName=StackTask, stackTaskName=DeirReqTask) [SigCtl.cxx:196] ^^ [58574:SigCtl.cxx:199]
The event often appears in clusters of DA-MP servers at approximately the same time, and through the episode most if not all DA-MPs will have the restart occur. The interval then seems to reset until the next ~31 day interval transpires.
Upgrade to DSR 8.3 or DSR 8.4.
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