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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12985) Support MetricsSource interface for DecayRpcScheduler Metrics
Date Wed, 20 Apr 2016 14:00:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Xiaoyu Yao updated HADOOP-12985:
    Attachment: HADOOP-12985.05.patch

Fix the javac issue as the MetricsUtil is in metrics 1 package. It has been deprecated by
metrics2. Move the utility class into metrics2 util.

> Support MetricsSource interface for DecayRpcScheduler Metrics
> -------------------------------------------------------------
>                 Key: HADOOP-12985
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12985
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>         Attachments: HADOOP-12985.00.patch, HADOOP-12985.02.patch, HADOOP-12985.03.patch,
HADOOP-12985.04.patch, HADOOP-12985.05.patch
> This allows metrics collector such as AMS to collect it with MetricsSink. The per user
RPC call counts, schedule decisions and per priority response time will be useful to detect
and trouble shoot Hadoop RPC server such as Namenode overload issues. 

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