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Posted to hdfs-issues@hadoop.apache.org by "Suresh Srinivas (JIRA)" <ji...@apache.org> on 2013/08/14 16:58:49 UTC

[jira] [Commented] (HDFS-5095) Using JournalNode IP as name of IPCLoggerChannel metrics record

    [ 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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