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https://issues.apache.org/jira/browse/MAPREDUCE-1640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12850831#action_12850831
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Vinod K V commented on MAPREDUCE-1640:
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Ramya found this while running tests to verify the node-health-check feature.
Thanks Ramya!
> Node health feature fails to blacklist a node if the health check script
> times out in some cases
> ------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1640
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1640
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Reporter: Vinod K V
> Fix For: 0.22.0
>
>
> Node health check feature fails to blacklist a TT if health check script
> times out. Below are the values that were set:
> - mapred.healthChecker.interval=60000
> - mapred.healthChecker.script.timeout=6000
> And the script was:
> {code}
> #!/bin/bash
> echo "start"
> sleep 100000
> echo "end"
> {code}
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