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https://issues.apache.org/jira/browse/MAPREDUCE-7453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17770512#comment-17770512
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ASF GitHub Bot commented on MAPREDUCE-7453:
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virajjasani commented on PR #6102:
URL: https://github.com/apache/hadoop/pull/6102#issuecomment-1741207214
On the other hand, as a second option, since this is now going to be an
incompatible change (change of default value) and mostly we will not have much
progress on log4j2 migration, you can also feel free to revert
https://github.com/apache/hadoop/commit/cf4a678ce946cecd035677bce756794ef286d795
> Container logs are missing when yarn.app.container.log.filesize is set to
> default value 0.
> ------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-7453
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7453
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 3.3.6
> Reporter: zhengchenyu
> Assignee: zhengchenyu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> Since HADOOP-18649, in container-log4j.properties,
> log4j.appender.\{APPENDER}.MaxFileSize is set to
> ${yarn.app.container.log.filesize}, but yarn.app.container.log.filesize is 0
> in default. So log is missing. This log is always rolling and only show the
> latest log.
> This is the running log like below:
> {code:java}
> Log Type: syslog
> Log Upload Time: Fri Sep 08 11:36:09 +0800 2023
> Log Length: 0
> Log Type: syslog.1
> Log Upload Time: Fri Sep 08 11:36:09 +0800 2023
> Log Length: 179
> 2023-09-08 11:31:34,494 INFO [AsyncDispatcher event handler]
> org.apache.hadoop.yarn.util.RackResolver: Got an error when resolve
> hostNames. Falling back to /default-rack for all. {code}
> Note: log4j.appender.\{APPENDER}.MaxFileSize is not set before, then use
> default value 10M, so no problem before HADOOP-18649
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