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https://issues.apache.org/jira/browse/YARN-9519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16833779#comment-16833779
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Adam Antal commented on YARN-9519:
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Forget to address the {{ExpectedException}}, added it in patch v5.
> TFile log aggregation file format is insensitive to the
> yarn.log-aggregation.TFile.remote-app-log-dir config
> ------------------------------------------------------------------------------------------------------------
>
> Key: YARN-9519
> URL: https://issues.apache.org/jira/browse/YARN-9519
> Project: Hadoop YARN
> Issue Type: Bug
> Components: log-aggregation
> Affects Versions: 3.2.0
> Reporter: Adam Antal
> Assignee: Adam Antal
> Priority: Major
> Attachments: YARN-9519.001.patch, YARN-9519.002.patch,
> YARN-9519.003.patch, YARN-9519.004.patch
>
>
> The TFile log aggregation file format is not sensitive to the
> yarn.log-aggregation.TFile.remote-app-log-dir config.
> In {{LogAggregationTFileController$initInternal}}:
> {code:java}
> this.remoteRootLogDir = new Path(
> conf.get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
> YarnConfiguration.DEFAULT_NM_REMOTE_APP_LOG_DIR));
> {code}
> So the remoteRootLogDir is only aware of the
> yarn.nodemanager.remote-app-log-dir config, while other file format, like
> IFile defaults to the file format config, so its priority is higher.
> From {{LogAggregationIndexedFileController$initInternal}}:
> {code:java}
> String remoteDirStr = String.format(
> YarnConfiguration.LOG_AGGREGATION_REMOTE_APP_LOG_DIR_FMT,
> this.fileControllerName);
> String remoteDir = conf.get(remoteDirStr);
> if (remoteDir == null || remoteDir.isEmpty()) {
> remoteDir = conf.get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
> YarnConfiguration.DEFAULT_NM_REMOTE_APP_LOG_DIR);
> }
> {code}
> (Where these configs are: )
> {code:java}
> public static final String LOG_AGGREGATION_REMOTE_APP_LOG_DIR_FMT
> = YARN_PREFIX + "log-aggregation.%s.remote-app-log-dir";
> public static final String NM_REMOTE_APP_LOG_DIR =
> NM_PREFIX + "remote-app-log-dir";
> {code}
> I suggest TFile should try to obtain the remote dir config from
> yarn.log-aggregation.TFile.remote-app-log-dir first, and only if that is not
> specified falls back to the yarn.nodemanager.remote-app-log-dir config.
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