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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11194) Maintain aggregated peer performance metrics on NameNode
Date Wed, 04 Jan 2017 02:13:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15796899#comment-15796899
] 

Xiaoyu Yao commented on HDFS-11194:
-----------------------------------

TestHeartbeatHandling.java
Line 60: is the 300_000 a typo or special usage of timeout rule?
{code}  
public Timeout testTimeout = new Timeout(300_000);
{code}

TestSlowPeerTracker.java
Line 54: same as above.



> Maintain aggregated peer performance metrics on NameNode
> --------------------------------------------------------
>
>                 Key: HDFS-11194
>                 URL: https://issues.apache.org/jira/browse/HDFS-11194
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.8.0
>            Reporter: Xiaobing Zhou
>            Assignee: Arpit Agarwal
>         Attachments: HDFS-11194.01.patch, HDFS-11194.02.patch, HDFS-11194.03.patch
>
>
> The metrics collected in HDFS-10917 should be reported to and aggregated on NameNode
as part of heart beat messages. This will make is easy to expose it through JMX to users who
are interested in them.



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