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CONTAP-126100: Slowness with FlexGroups and indirect I/O due to Snapshot autodelete saturating network threads

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Category:
ontap-9
Specialty:
CORE
Last Updated:

Issue

  • Slowness seen with indirect i/o or Flexgroups.
  • Snapshots are not being auto deleted.
  • Once the snapcoord counters for snapserver_create minus snapserver_delete reaches a difference of around 65000, the node will make all flexgroups unresponsive.


Cluster-node01::*> statistics show -raw -object snapcoord -counter snapserver_create|snapserver_delete


Object: snapcoord
Instance: snapcoord
Start-time: 2/13/2024 15:14:02
End-time: 2/13/2024 15:14:02
Scope: Cluster-node01


    Counter                                                     Value
    -------------------------------- --------------------------------
    snapserver_create                                          153332
    snapserver_delete                                           88332

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