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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1640) Node health feature fails to blacklist a node if the health check script times out in some cases
Date Mon, 29 Mar 2010 08:35:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12850831#action_12850831
] 

Vinod K V commented on MAPREDUCE-1640:
--------------------------------------

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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