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https://issues.apache.org/jira/browse/HDFS-5121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13749200#comment-13749200
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Colin Patrick McCabe commented on HDFS-5121:
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* added Nonnull annotation to CachePool
bq. Eclipse is telling me these are unchecked casts:
I don't think there's any way around this-- it's just the way the RetryCache
works. {{CacheEntryWithPayload}} contains an object of type Object and you
have to deal with casting.
bq. Rather than passing down pc, how about some new methods in
FSPermissionChecker
I added some methods to FSPermissionChecker. I didn't end up needing to pull
in CachePool to that class-- passing in the user, group, and mode should be
enough.
bq. No addCachePool API?
Yeah, I guess we should have one of those.
> add RPCs for creating and manipulating cache pools
> --------------------------------------------------
>
> Key: HDFS-5121
> URL: https://issues.apache.org/jira/browse/HDFS-5121
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Affects Versions: HDFS-4949
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-5121-caching.001.patch
>
>
> We should add RPCs for creating and manipulating cache pools.
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