cluster control (Controller:2.2.0.10461) crash with mongo 6 rs

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Davide Doninelli

• September 19, 2024 06:44

hi everyone,

i try to add a existing mongodb comunity replica set . 

After the job start i receive an error checking job detail (page not exist)

in addition in the vm log i see the cmon process crashing and restarting.

do anyone expiriencing the same ?

thank you

davide

Sep 19 08:40:36  systemd[1]: Removed slice User Slice of UID 0.
Sep 19 08:40:36  kernel: mysql_cntr_coll[3863459]: segfault at 7fdde17fbfc8 ip 000000000089b70b sp 00007fdde17fbfd0 error 6 in cmon[411000+17aa000]
Sep 19 08:40:36  kernel: Code: 8b 54 24 38 48 8b 6b 08 48 8b 72 38 e9 f7 fe ff ff 66 0f 1f 44 00 00 80 7b 18 00 0f 85 8e 02 00 00 48 89 ea 44 89 fe 4c 89 e7 <e8> a0 04 00 00 41 80 7c 24 74 00 0f 85 1c ff ff ff eb c2 66 90 48
Sep 19 08:40:36  systemd[1]: Started Process Core Dump (PID 3863868/UID 0).
Sep 19 08:40:36  systemd-coredump[3863869]: Resource limits disable core dumping for process 3863258 (cmon).
Sep 19 08:40:36  systemd-coredump[3863869]: Process 3863258 (cmon) of user 0 dumped core.
Sep 19 08:40:36  systemd[1]: systemd-coredump@65-3863868-0.service: Succeeded.
Sep 19 08:40:36  systemd[1]: cmon.service: Main process exited, code=killed, status=11/SEGV
Sep 19 08:40:36  systemd[1]: cmon.service: Failed with result 'signal'.
Sep 19 08:40:41  systemd[1]: cmon.service: Service RestartSec=5s expired, scheduling restart.
Sep 19 08:40:41  systemd[1]: cmon.service: Scheduled restart job, restart counter is at 39.
Sep 19 08:40:41  systemd[1]: Stopped clustercontrol-controller service.
Sep 19 08:40:41  systemd[1]: Starting clustercontrol-controller service..

 

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• Official comment

  

  Krzysztof Ksiazek

  • September 19, 2024 13:16

  Hello,

  Please open a ticket with us and make sure that you include an error report. It will collect some information about your environment. If you are not using the latest ClusterControl, please try to upgrade. The issue looks like a bug in cmon process, we need more data to investigate it.

  Thanks,
  Krzysztof Ksiazek

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  Krzysztof Ksiazek

  • September 19, 2024 13:21

  Just to add to this, can you please follow steps described here:
  https://docs.severalnines.com/docs/clustercontrol/troubleshooting/reporting-and-debugging/#Debugging_ClusterControl_Controller_CMON

  and attach generated core dump to the ticket?

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  Paul Namuag

  • September 19, 2024 20:47

  Hi Davide,

  Thank you for your Zendesk ticket you filed. Please have a look at your e-mail as we responded to you. It would be great if you can update us via Zendesk especially the error report that I have asked.

  Thanks.

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  Davide Doninelli

  • September 20, 2024 05:32

  thank you for the fast reply! i just collected the information and updated the case on zendesk.

  Thank you!

  Best regards

  Davide

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