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Unable to communicate with node alerts after upgrade to 12.0

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storagegrid
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sgrid
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Applies to

Netapp StorageGRID 12.0

Issue

After upgrading to 12.0 frequent "Unable to communicate with node" alerts appear.
Additionally the following alerts may appear as well:
  • Cassandra auto-compactor error
  • Cassandra compactions overloaded
  • Cassandra repair progress slow

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