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Posted to issues@ozone.apache.org by "Soumitra Sulav (Jira)" <ji...@apache.org> on 2022/06/22 19:45:00 UTC

[jira] [Created] (HDDS-6934) OM crashed with OzoneManagerDoubleBuffer

Soumitra Sulav created HDDS-6934:
------------------------------------

             Summary: OM crashed with OzoneManagerDoubleBuffer
                 Key: HDDS-6934
                 URL: https://issues.apache.org/jira/browse/HDDS-6934
             Project: Apache Ozone
          Issue Type: Bug
          Components: Ozone Filesystem
    Affects Versions: 1.3.0
            Reporter: Soumitra Sulav


Steps followed while we encounter this issue.
 * A test bucket was created with {{FILE_SYSTEM_OPTIMIZED}} as the layout type.
{{ofs://ozone1/prefix94441/layout97486/}}
 * Multiple keys and directories where created in this bucket (1000+).
 * ListStatus operation was done to verify the sorted list.
 * Once validated the bucket was recursively deleted using FS api.

{code:java}
RUNNING: /opt/cloudera/parcels/CDH/bin/ozone fs -rm -r -skipTrash 'ofs://ozone1/prefix94441/layout97486/'
Deleted ofs://ozone1/prefix94441/layout97486
Exit Code: 0
{code}
Post above operation we see OzoneManagerDoubleBuffer exception as below stacktrace
{code:java}
2022-06-22 11:53:30,907 ERROR org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer: Terminating with exit status 2: OMDoubleBuffer flush thread OMDoubleBufferFlushThread encountered Throwable error
java.lang.NullPointerException
	at org.apache.hadoop.ozone.om.OmMetadataManagerImpl.getBucketId(OmMetadataManagerImpl.java:1482)
	at org.apache.hadoop.ozone.om.response.key.OMKeysDeleteResponseWithFSO.addToDBBatch(OMKeysDeleteResponseWithFSO.java:67)
	at org.apache.hadoop.ozone.om.response.key.OMKeysDeleteResponse.checkAndUpdateDB(OMKeysDeleteResponse.java:70)
	at org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.lambda$2(OzoneManagerDoubleBuffer.java:283)
	at org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.addToBatchWithTrace(OzoneManagerDoubleBuffer.java:228)
	at org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.lambda$1(OzoneManagerDoubleBuffer.java:281)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
	at org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.flushTransactions(OzoneManagerDoubleBuffer.java:277)
	at java.base/java.lang.Thread.run(Thread.java:834){code}



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