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https://issues.apache.org/jira/browse/MAPREDUCE-697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-697.
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Resolution: Not a Problem
> Jobwise list of blacklisted tasktrackers doesn't get refreshed even after
> restarting blacklisted tasktrackers.
> --------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-697
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-697
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.1
> Reporter: Suman Sehgal
>
> Jobwise list of blacklisted tasktrackers doesn't get refreshed even after
> restarting blacklisted tasktrackers. "jobdetails.jsp" page keeps on showing
> the same no. of blacklisted tasktrackers (it doesn't get back to zero).
> One associated issue:
> =================
> --> More than 25% of TTs are blacklisted in a job.
> --> Restart the blacklisted TTs. All the tasktrackers are healthy now.
> --> try to blacklist other TT for the same job.
> Not able to blacklist the "other" tasktracker even if
> "mapred.max.tracker.failures" exceeds the specified limit.
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