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https://issues.apache.org/jira/browse/HDFS-5213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13767986#comment-13767986
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Colin Patrick McCabe commented on HDFS-5213:
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* fix exception translation error in cache directive add code path
* add exception to represent a directive with the given path already existing
in a cache pool
* since PathBasedCacheEntry is intended to be a private (implementation) class,
return PathBasedCacheDirectiveWithId from all public APIs instead.
* get rid of unnecessary CacheManager#entriesByDirective.
PathBasedCacheDirective no longer needs to be Comparable.
* fix unit test failures
* fix bug where -listPaths didn't work without a -path argument
> separate PathBasedCacheEntry and PathBasedCacheDirectiveWithId
> --------------------------------------------------------------
>
> Key: HDFS-5213
> URL: https://issues.apache.org/jira/browse/HDFS-5213
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
>
> Since PathBasedCacheEntry is intended to be a private (implementation) class,
> return PathBasedCacheDirectiveWithId from all public APIs instead. Some
> other miscellaneous cleanups in the caching RPC stuff.
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