[jira] [Commented] (YARN-7265) Hadoop Server Log Correlation

["Tanping Wang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-7265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16190236#comment-16190236 ] 

Tanping Wang commented on YARN-7265:
------------------------------------

[~jlowe]  What the application developers need is a free yet default way of grabbing all the yarn logs, for example.  Certainly there could be scripts build to grab the logs, but Hadoop should contain a tool set that provides all the yarn logs related with one job.  This does not include any other Hadoop services like Hive, Pig or Oozie, but just Hadoop itself.

> Hadoop Server Log Correlation  
> -------------------------------
>
>                 Key: YARN-7265
>                 URL: https://issues.apache.org/jira/browse/YARN-7265
>             Project: Hadoop YARN
>          Issue Type: Wish
>          Components: log-aggregation
>            Reporter: Tanping Wang
>
> Hadoop has many server logs, yarn tasks logs, node manager logs, HDFS logs..   There are also a lot of different ways can be used to expose the logs, build relationship horizontally to correlate the logs or search the logs by keyword. There is a need for a default and yet convenient  logging analytics mechanism in Hadoop itself that at least covers all the server logs of Hadoop.  This log analytics system can correlate the Hadoop server logs by grouping them by various dimensions including application ID,  task ID, job ID or node ID etc.   The raw logs with correlation can be easily accessed by the application developer or cluster administrator via web page for managing and debugging.



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