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https://issues.apache.org/jira/browse/HDFS-5845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Wang updated HDFS-5845:
------------------------------
Resolution: Fixed
Fix Version/s: 2.3.0
Status: Resolved (was: Patch Available)
Thanks Colin, I committed this to branch-2.3, branch-2, and trunk.
> SecondaryNameNode dies when checkpointing with cache pools
> ----------------------------------------------------------
>
> Key: HDFS-5845
> URL: https://issues.apache.org/jira/browse/HDFS-5845
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.3.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Blocker
> Labels: caching
> Fix For: 2.3.0
>
> Attachments: hdfs-5845-1.patch
>
>
> The SecondaryNameNode clears and reloads its FSNamesystem when doing
> checkpointing. However, FSNamesystem#clear does not clear CacheManager state
> during this reload. This leads to an error like the following:
> {noformat}
> org.apache.hadoop.fs.InvalidRequestException: Cache pool pool1 already exists.
> {noformat}
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