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https://issues.apache.org/jira/browse/MAPREDUCE-6052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164497#comment-14164497
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Vinod Kumar Vavilapalli commented on MAPREDUCE-6052:
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bq. No matter which NM the containers will be launched, they will always get
the same container-log4j.properties. So, if we use customized log4j properties,
do we need to distribute this file to all the NMs (just like the default
container-log4j.properties) ?
Was asked to comment. This makes sense. Let's just make it a user-configuration
of a local log4j file that we accept and add it automatically to the
distributed-cache.
> 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.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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