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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5149) Support for federated cache pools
Date Wed, 09 Oct 2013 23:10:42 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13790973#comment-13790973

Andrew Wang commented on HDFS-5149:

Hey Chris, great to hear that things look good. This was more of a tracking JIRA than anything
else, I had a vague notion that we might need to fix cacheReports on the DN, but it seems
like we're good.

We can just close it out if you like, or if you have time to do some testing to see how things
behave, that'd be much appreciated too.

> Support for federated cache pools
> ---------------------------------
>                 Key: HDFS-5149
>                 URL: https://issues.apache.org/jira/browse/HDFS-5149
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>    Affects Versions: HDFS-4949
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
> The federation concept of a "blockpool" has not pervaded the caching implementation thus
far, e.g. datanodes do not track and report usage by block pool, some namenode operations
are not block pool aware. This requires re-examination of protobufs / protocol / handling

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