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https://issues.apache.org/jira/browse/HDFS-4845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669019#comment-13669019
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Tsz Wo (Nicholas), SZE commented on HDFS-4845:
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> It looks like loadInodeWithLocalName is only invoked during namenode startup,
> except for tests so a lock may not be necessary. However I added it for
> completeness.
I think it should add the lock in the tests. Otherwise, it would slow down
startup.
> FSEditLogLoader gets NPE while accessing INodeMap in TestEditLogRace
> --------------------------------------------------------------------
>
> Key: HDFS-4845
> URL: https://issues.apache.org/jira/browse/HDFS-4845
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Kihwal Lee
> Assignee: Arpit Agarwal
> Priority: Critical
> Attachments: HDFS-4845.001.patch, HDFS-4845.002.patch
>
>
> TestEditLogRace fails occasionally because it gets NPE from manipulating
> INodeMap while loading edits.
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