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https://issues.apache.org/jira/browse/TEZ-4139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17076762#comment-17076762
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Rajesh Balamohan commented on TEZ-4139:
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For ref: Observed this when analyzing Q28
> Tez should consider node information for computing failure fraction
> -------------------------------------------------------------------
>
> Key: TEZ-4139
> URL: https://issues.apache.org/jira/browse/TEZ-4139
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Priority: Major
>
> When lots of downstream attempts fail to pull the information from source
> task, source task is marked as failed and it is retried. Currently failure
> fraction is handled by looking at unique task attempts from downstream.
> However, it should consider taking into account node information for
> computing "failureFraction".
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