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https://issues.apache.org/jira/browse/HADOOP-2048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Douglas updated HADOOP-2048:
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Attachment: 2048-3.patch
Given HADOOP-2049 and HADOOP-2050, changing the way distcp handles failures
seems warranted. This deletes partial copies and fails the map in
FSCopyFilesMapper::close. Though it may repeat work if 'overwrite' or 'update'
are set, it should handle retries properly.
> DISTCP mapper should report progress more often
> -----------------------------------------------
>
> Key: HADOOP-2048
> URL: https://issues.apache.org/jira/browse/HADOOP-2048
> Project: Hadoop
> Issue Type: Bug
> Reporter: Runping Qi
> Assignee: Chris Douglas
> Attachments: 2048-2.patch, 2048-3.patch, 2048.patch
>
>
> When I ran DISTCP to copy files from one dfs to another, I noticed that some
> mappers got killed due to failing to report status for 606 seconds.
> I noticed that the mappers try to make a progress report for every 32MB
> copied. A better way to ensure progress is to use a time interval since last
> report.
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