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https://issues.apache.org/jira/browse/TEZ-3601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15852154#comment-15852154
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Siddharth Seth commented on TEZ-3601:
-------------------------------------

Some suggestions.

- Drop the TASK_ATTEMPT_ALL level. Rename TASK_ATTEMPT_FILTERED to TASK_ATTEMPT
- Default value for history.logging.taskattempt-filters can be empty string. 
This serves as the current TASK_ATTEMPT_ALL

Other than these two changes, looks good.
Minor: Make all the new variables in HistoryEventHandler final

> Add another HistoryLogLevel to suppress TaskAttempts which are externally 
> preempted.
> ------------------------------------------------------------------------------------
>
>                 Key: TEZ-3601
>                 URL: https://issues.apache.org/jira/browse/TEZ-3601
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Harish Jaiprakash
>            Assignee: Harish Jaiprakash
>         Attachments: TEZ-3601.01.patch, TEZ-3601.02.patch, TEZ-3601.03.patch
>
>
> In LLAP, there are too many TaskAttempts which are preempted by llap. This 
> results in too many log events, add a log level to support configure and 
> suppress these events.



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