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Date: Sun, 11 Jun 2017 01:30:19 +0000 (UTC)
From: "Arpit Agarwal (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-11907) Add metric for time taken by
 NameNode resource check
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archived-at: Sun, 11 Jun 2017 01:30:27 -0000


    [ https://issues.apache.org/jira/browse/HDFS-11907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045776#comment-16045776 ] 

Arpit Agarwal commented on HDFS-11907:
--------------------------------------

The TestNameNodeMetrics failure looks related. I think the unit test needs to use a separate MiniDFSCluster instance, since the {{@Before}} method already started another one that is leaked by testResourceCheck.

Also while you are fixing that, could you please add the log message that was in an earlier patch revision. i.e. if the resource check takes > 5 seconds, log a warning in {{FSNameSystem#checkAvailableResources}}?

> Add metric for time taken by NameNode resource check
> ----------------------------------------------------
>
>                 Key: HDFS-11907
>                 URL: https://issues.apache.org/jira/browse/HDFS-11907
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-11907.001.patch, HDFS-11907.002.patch, HDFS-11907.003.patch, HDFS-11907.004.patch, HDFS-11907.005.patch, HDFS-11907.006.patch
>
>
> Add a metric to measure the time taken by the NameNode Resource Check.


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