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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-3967) Task Tracker logs show a lot of DiskChecker$DiskErrorException
Date Fri, 22 May 2009 05:54:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Amareshwari Sriramadasu resolved HADOOP-3967.

    Resolution: Duplicate

Fixed HADOOP-4963

> Task Tracker logs show a lot of DiskChecker$DiskErrorException
> --------------------------------------------------------------
>                 Key: HADOOP-3967
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3967
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Jothi Padmanabhan
> The task tracker logs show a lot of messages like
> 789 INFO org.apache.hadoop.mapred.TaskTracker: org.apache.hadoop.util.DiskChecker$DiskErrorException:
Could not find taskTracker/jobcache/job_200808181059_0001/attempt_200808181059_0001_m_000097_0/output/file.out
in any of the configured local directories
> This appears to have been introduced by Hadoop-657. The message comes from 
> transmitHeartBeat -> cloneAndResetRunningTaskStatuses -> tryToGetOutputSize. This
tries to estimate the map output size even before the actual file is created. 
> This error has no bearing on the overall functionality, all jobs run to success

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