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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5095) Using JournalNode IP as name of IPCLoggerChannel metrics record
Date Wed, 14 Aug 2013 14:58:49 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739744#comment-13739744
] 

Suresh Srinivas commented on HDFS-5095:
---------------------------------------

Before this change the metrics name is "NameNode" as you noted. With the patch the metrics
name is IPCLoggerChannel-<address>-<port> and is collected at the namenode. Instead
of this, we could use a name such "NameNode-qjournal-<Address>-<port>? Also please
add a unit test.
                
> Using JournalNode IP as name of IPCLoggerChannel metrics record
> ---------------------------------------------------------------
>
>                 Key: HDFS-5095
>                 URL: https://issues.apache.org/jira/browse/HDFS-5095
>             Project: Hadoop HDFS
>          Issue Type: Task
>          Components: qjm
>    Affects Versions: 2.0.5-alpha
>            Reporter: LiuLei
>         Attachments: IPCLoggerChannelMetrics.java.patch, metrics.jpg
>
>
> I use QJM for HA, IPCLoggerChannelMetrics class use "NameNode" as metrics record name,
so metrics record of all JournalNode are displayed together in ganglia.  If every JournalNode
display metrics record in difference name that is better.  I think use JournalNode IP as the
name is better.

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