[
https://issues.apache.org/jira/browse/TEZ-2972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15071774#comment-15071774
]
Bikas Saha commented on TEZ-2972:
---------------------------------
committed addendum patch. 0.7 patch lgtm. please commit when convenient.
> Avoid task rescheduling when a node turns unhealthy
> ---------------------------------------------------
>
> Key: TEZ-2972
> URL: https://issues.apache.org/jira/browse/TEZ-2972
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Fix For: 0.8.2
>
> Attachments: TEZ-2972-branch-0.7.001.patch, TEZ-2972.001.patch,
> TEZ-2972.002.patch, TEZ-2972.003.addendum.patch, TEZ-2972.003.patch
>
>
> This is similar to MAPREDUCE-6119. Sometimes reacting to a node update event
> can cause more harm than good. For example, an UNHEALTHY node may be able to
> shuffle just fine. Therefore obsoleting the output of tasks that ran on that
> node and re-running them simply adds more overhead to the job with no
> benefit. It would be nice to be able to configure Tez to ignore node update
> events if desired.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
