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https://issues.apache.org/jira/browse/HDFS-12940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16299999#comment-16299999
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Nanda kumar commented on HDFS-12940:
------------------------------------
Even with {{OZONE_OPEN_KEY_CLEANUP_SERVICE_INTERVAL_SECONDS = 3}} and
{{OZONE_OPEN_KEY_EXPIRE_THRESHOLD_SECONDS = 2}} few test-cases are failing with
{{java.io.IOException: Commit key failed, error:KEY_NOT_FOUND}}
{noformat}
java.io.IOException: Commit key failed, error:KEY_NOT_FOUND
at
org.apache.hadoop.ozone.ksm.protocolPB.KeySpaceManagerProtocolClientSideTranslatorPB.commitKey(KeySpaceManagerProtocolClientSideTranslatorPB.java:598)
at
org.apache.hadoop.ozone.client.io.ChunkGroupOutputStream.close(ChunkGroupOutputStream.java:309)
at
org.apache.hadoop.ozone.client.io.OzoneOutputStream.close(OzoneOutputStream.java:58)
at
org.apache.hadoop.ozone.ksm.TestKeySpaceManager.testWriteSize(TestKeySpaceManager.java:1061)
...
-------
java.io.IOException: Commit key failed, error:KEY_NOT_FOUND
at
org.apache.hadoop.ozone.ksm.protocolPB.KeySpaceManagerProtocolClientSideTranslatorPB.commitKey(KeySpaceManagerProtocolClientSideTranslatorPB.java:598)
at
org.apache.hadoop.ozone.client.io.ChunkGroupOutputStream.close(ChunkGroupOutputStream.java:309)
at
org.apache.hadoop.ozone.client.io.OzoneOutputStream.close(OzoneOutputStream.java:58)
at
org.apache.hadoop.ozone.ksm.TestKeySpaceManager.testListKeys(TestKeySpaceManager.java:814)
...
{noformat}
> Ozone: KSM: TestKeySpaceManager#testExpiredOpenKey fails occasionally
> ---------------------------------------------------------------------
>
> Key: HDFS-12940
> URL: https://issues.apache.org/jira/browse/HDFS-12940
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Nanda kumar
> Assignee: Nanda kumar
> Attachments: HDFS-12940-HDFS-7240.000.patch,
> HDFS-12940-HDFS-7240.001.patch
>
>
> {{TestKeySpaceManager#testExpiredOpenKey}} is flaky.
> In {{testExpiredOpenKey}} we are opening four keys for writing and wait for
> them to expire (without committing). Verification/Assertion is done by
> querying {{MiniOzoneCluster}} and matching the count. Since the {{cluster}}
> instance of {{MiniOzoneCluster}} is shared between test-cases in
> {{TestKeySpaceManager}}, we should not rely on the count. The verification
> should only happen by matching the keyNames and not with the count.
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