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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5556) add some more NameNode cache statistics, cache pool stats
Date Mon, 25 Nov 2013 22:42:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832005#comment-13832005

Andrew Wang commented on HDFS-5556:

I missed this before, but are we sure we want to add new stats to NameNodeMXBean rather than
FSNamesystemMBean? It's a public stable interface, so modifications here are not backwards

I'd also like to see a test a la TestNameNodeMetrics verifying that the new NN metrics show
up. It should be straightfoward to insert a few more checks in an existing caching test or
check method. We can wait on CachePoolStats tests until they're hooked up.

> add some more NameNode cache statistics, cache pool stats
> ---------------------------------------------------------
>                 Key: HDFS-5556
>                 URL: https://issues.apache.org/jira/browse/HDFS-5556
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-5556.001.patch, HDFS-5556.002.patch
> Add some more NameNode cache statistics and also cache pool statistics.

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