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https://issues.apache.org/jira/browse/HDFS-5636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13848090#comment-13848090
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Andrew Wang commented on HDFS-5636:
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I was thinking a hard error. It's better for users too since the default expiry
is "never".
> Enforce a max TTL per cache pool
> --------------------------------
>
> Key: HDFS-5636
> URL: https://issues.apache.org/jira/browse/HDFS-5636
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: caching, namenode
> Affects Versions: 3.0.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
>
> It'd be nice for administrators to be able to specify a maximum TTL for
> directives in a cache pool. This forces all directives to eventually age out.
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