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https://issues.apache.org/jira/browse/TEZ-2917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14983439#comment-14983439
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Siddharth Seth commented on TEZ-2917:
-------------------------------------

Almost all of them. We've been through the same exercise in TEZ-2774 and 
TEZ-2775. There is value in disabling a lot of these log lines in specific 
scenarios. However, for regular production runs of potentially long running Tez 
jobs - leaving them there is useful. Some of the noisier lines were explicitly 
added back in the previous jiras.

> change some logs from info to debug
> -----------------------------------
>
>                 Key: TEZ-2917
>                 URL: https://issues.apache.org/jira/browse/TEZ-2917
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: TEZ-2917.patch
>
>
> I've done a highly unscientific summarization of the logs from some random 
> queries, and will now change some log statements that are the most prevalent 
> and not extremely useful from info to debug.



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