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https://issues.apache.org/jira/browse/HDFS-5119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Wang updated HDFS-5119:
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Attachment: hdfs-5119-3.patch
Thanks for the review Chris, it's great to get validation on the metadata
upgrade and your manual testing. New patch addresses all of your comments
except hooking into {{setReplication}} to sync up with changes in file
replication; I believe it'll be addressed in the other JIRA as you said.
> Persist CacheManager state in the edit log
> ------------------------------------------
>
> Key: HDFS-5119
> URL: https://issues.apache.org/jira/browse/HDFS-5119
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: HDFS-4949
> Reporter: Colin Patrick McCabe
> Assignee: Andrew Wang
> Attachments: hdfs-5119-1.patch, hdfs-5119-2.patch, hdfs-5119-3.patch
>
>
> CacheManager state should be persisted in the edit log. At the moment, this
> state consists of information about cache pools and cache directives. It's
> not necessary to persist any information about what is cached on the
> DataNodes at any particular moment, since this changes all the time.
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