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3538009 - System Replication frequent re-connect and re-sync due to an OS level execution in SAP HANA High Availability secondary

Symptom

  • System Replication frequently re-sync's and reconnects.
  • Logs grow and it is slow to perform full replication.
  • indexserver is suddenly restarted without any prior HANA error recorded.
  • Daemon traces at the time of the indexserver restart show information such as
i Daemon           TrexDaemon.cpp(04395) : process hdbindexserver with pid <######> exited because it caught signal 9
  • OS logs (messages) show events such as
...<hostname>  kernel: [9175922.756466] Out of memory: Killed process <pid> (hdbindexserver) total-vm:########8kB, anon-rss:#########kB, file-rss:0kB, shmem-rss:############kB
... <hostname> rtkit-daemon[7880]: The canary thread is apparently starving. Taking action.32kB..


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Environment

SAP HANA High Availability (System Replication, DR, etc.)

Product

SAP HANA, platform edition all versions

Keywords

System Replication, frequent restart, OS level execution, SAP HANA High Availability, oom-killer, memory resource, secondary site HANA Database, Note 1857315, HANA server disappears, crashes, crashdump. , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) , BC-OP-LNX , Linux , Problem

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