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Posted to common-issues@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2011/06/30 21:51:28 UTC
[jira] [Commented] (HADOOP-7436) Bundle Chukwa Metrics plugin in
Hadoop
[ https://issues.apache.org/jira/browse/HADOOP-7436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13058037#comment-13058037 ]
Todd Lipcon commented on HADOOP-7436:
-------------------------------------
I disagree -- I think what we need is a better plugin system. Contrib like this tends to aggregate broken code that no one wants to maintain (witness hdfsproxy tests that have been failing >1 year)
> Bundle Chukwa Metrics plugin in Hadoop
> --------------------------------------
>
> Key: HADOOP-7436
> URL: https://issues.apache.org/jira/browse/HADOOP-7436
> Project: Hadoop Common
> Issue Type: New Feature
> Environment: Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
>
> For monitoring hadoop cluster with Chukwa, the current step is to copy chukwa-hadoop-*-client.jar and json-simple to hadoop classpath. (i.e. $HADOOP_HOME/lib or $HADOOP_PREFIX/share/hadoop/lib), and modify the hadoop-metrics.properties to use org.apache.hadoop.chukwa.inputtools.log4j.Log4JMetricsContext for emitting metrics. It is preferred to reduce the number of manual steps that is required to enable chukwa monitored hadoop cluster by moving the plugin code into hadoop code base. It is similar to bundling Ganglia metrics plugin in Hadoop code base.
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