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https://issues.apache.org/jira/browse/YARN-9607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989194#comment-16989194
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Hudson commented on YARN-9607:
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SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17728 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17728/])
YARN-9607. Auto-configuring rollover-size of IFile format for (snemeth: rev
4f758dd4c682bacbb110c51a96079a6c5d103c95)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/filecontroller/LogAggregationFileController.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/LogAggregationIndexedFileController.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexedFileController.java
> Auto-configuring rollover-size of IFile format for non-appendable filesystems
> -----------------------------------------------------------------------------
>
> Key: YARN-9607
> URL: https://issues.apache.org/jira/browse/YARN-9607
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: log-aggregation, yarn
> Affects Versions: 3.3.0
> Reporter: Adam Antal
> Assignee: Adam Antal
> Priority: Major
> Attachments: YARN-9607.001.patch, YARN-9607.002.patch,
> YARN-9607.003.patch, YARN-9607.004.patch
>
>
> In YARN-9525, we made IFile format compatible with remote folders with s3a
> scheme. In rolling fashioned log-aggregation IFile still fails with the
> "append is not supported" error message, which is a known limitation of the
> format by design.
> There is a workaround though: setting the rollover size in the configuration
> of the IFile format, in each rolling cycle a new aggregated log file will be
> created, thus we eliminated the append from the process. Setting this config
> globally would cause performance problems in the regular log-aggregation, so
> I'm suggesting to enforcing this config to zero, if the scheme of the URI is
> s3a (or any other non-appendable filesystem).
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