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https://issues.apache.org/jira/browse/YARN-6875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16858095#comment-16858095
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Tan, Wangda commented on YARN-6875:
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[~larsfrancke], this is already usable in append-able file system like HDFS.
I'd prefer to close this ticket and leave the remaining tasks open.
> New aggregated log file format for YARN log aggregation.
> --------------------------------------------------------
>
> Key: YARN-6875
> URL: https://issues.apache.org/jira/browse/YARN-6875
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Xuan Gong
> Assignee: Xuan Gong
> Priority: Major
> Attachments: YARN-6875-NewLogAggregationFormat-design-doc.pdf
>
>
> T-file is the underlying log format for the aggregated logs in YARN. We have
> seen several performance issues, especially for very large log files.
> We will introduce a new log format which have better performance for large
> log files.
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