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https://issues.apache.org/jira/browse/YARN-6875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16118925#comment-16118925
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Wangda Tan commented on YARN-6875:
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[~jlowe], make sense.

> 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
>         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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