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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6052) Support overriding log4j.properties per job
Date Wed, 22 Oct 2014 01:51:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179464#comment-14179464

Junping Du commented on MAPREDUCE-6052:

bq. That or "hey this is my log4j configuration file on the local-disk, go add it to dist-cache
and use it for all my tasks".
If so, user can add "-files log4j.properties" as generic option which can distribute local
file to all target hosts. Right?

> Support overriding log4j.properties per job
> -------------------------------------------
>                 Key: MAPREDUCE-6052
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6052
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.5.0
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: MAPREDUCE-6052-v2.patch, MAPREDUCE-6052.patch
> For current MR application, the "log4j.configuration" is hard coded to container-log4j.properties
within each node. We still need flexibility to override it per job like what we do in MRV1.
> {code}
>   public static void addLog4jSystemProperties(
>       String logLevel, long logSize, int numBackups, List<String> vargs) {
>     vargs.add("-Dlog4j.configuration=container-log4j.properties");
> {code}

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