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From "Haibo Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7602) NM should reference the singleton JvmMetrics instance
Date Tue, 02 Jan 2018 20:46:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-7602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308680#comment-16308680

Haibo Chen commented on YARN-7602:

The unit test failures seem unrelated to me. Will update the patch to address the checkstyle
issue and see what Jenkins says.

> NM should reference the singleton JvmMetrics instance
> -----------------------------------------------------
>                 Key: YARN-7602
>                 URL: https://issues.apache.org/jira/browse/YARN-7602
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 3.0.0-beta1
>            Reporter: Haibo Chen
>            Assignee: Haibo Chen
>         Attachments: YARN-7602.00.patch, YARN-7602.01.patch, YARN-7602.02.patch, YARN-7602.03.patch
> NM does not reference the singleton JvmMetrics instance in its NodeManagerMetrics. This
will easily cause NM to crash if any of the node manager components tries to register JvmMetrics.
An example of this is TimelineCollectorManager that hosts a HBaseClient that registers JvmMetrics
again. See HBASE-19409 for details.

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