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From "Jerome Boulon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-123) regression on chukwa-hadoop-client.jar
Date Mon, 13 Apr 2009 17:10:14 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698441#action_12698441
] 

Jerome Boulon commented on CHUKWA-123:
--------------------------------------

-1 I don't understand what this patch tries to solve

Also could you be more concrete.
What's made you not confident with the current implementation?


Everything is configured from one single file hadoop-metrics.properties instead of an hidden
log4.properties file embedded in chukwa-hadoop-client.jar.
You can take a look at conf/hadoop-metrics.properties.template, I've put some info on how
to use it at the same time of the Jira.

Example:
mapred.class=org.apache.hadoop.chukwa.inputtools.log4j.Log4JMetricsContext
mapred.period=60
mapred.directory=/tmp/
mapred.uuid=true

The UUID flag will add a timestamp at the end of the filename. So you need to use it when
there's more than one process, running on the same machine and outputting the same kind of
metrics like jvm or mapred.

> regression on chukwa-hadoop-client.jar
> --------------------------------------
>
>                 Key: CHUKWA-123
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-123
>             Project: Hadoop Chukwa
>          Issue Type: Bug
>          Components: input tools
>    Affects Versions: 0.1.2
>         Environment: Redhat 5.1, Java 6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Blocker
>             Fix For: 0.1.2
>
>         Attachments: CHUKWA-123.patch
>
>
> There is currently no metrics file being generated by Log4jMetricsContext plugin.

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