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From "Mit Desai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6082) Excessive logging by org.apache.hadoop.util.Progress when value is NaN
Date Wed, 10 Sep 2014 21:20:34 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mit Desai updated MAPREDUCE-6082:
---------------------------------
    Attachment: MAPREDUCE-6082.patch

Attaching the patch for trunk and branch-2

> Excessive logging by org.apache.hadoop.util.Progress when value is NaN
> ----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6082
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6082
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Mit Desai
>            Assignee: Mit Desai
>         Attachments: MAPREDUCE-6082.patch
>
>
> MAPREDUCE-5671 fixed the "illegal" progress values that do not fall into (0,1) interval
when the progress value is given. Whenever illegal value was encountered, LOG.warn would log
that incident.
> As  a result, each of the task's syslog will be full of  WARN [main] org.apache.hadoop.util.Progress:
Illegal progress value found, progress is Float.NaN. Progress will be changed to 0
> Each input record will contribute to one line of such log, leading to most
> of the tasks' syslog > 1GB.
> We will need to change the log level to debug to avoid such excessive logging.



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