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How to check high java heap usage caused by merkle tree memory leak in StorageGRID 11.4

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Category:
storagegrid
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sgrid
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Applies to

NetApp StorageGRID 11.4

Description

Under certain circumstances, the version of Cassandra contained within the StorageGRID 11.4 codeline (DSE 5.1.14) can exhibit high java heap usage due to a merkle tree memory leak caused by long-finished repairs. 

 

StorageGRID will report:

  • High Java Heap alarms/alerts
  • Cassandra repair errors in logs, example:
[ERROR] org.apache.cassandra.repair.Validator:268 - Failed creating a merkle tree for [repair #e9a52ab0-9329-11eb-83c1-8bc0b64bffdd on storagegrid

 

 

 

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