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Posted to issues@tajo.apache.org by "Jihoon Son (JIRA)" <ji...@apache.org> on 2015/04/22 09:18:00 UTC

[jira] [Updated] (TAJO-591) Implement Output Committer for commiting final output files

     [ https://issues.apache.org/jira/browse/TAJO-591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jihoon Son updated TAJO-591:
----------------------------
    Summary: Implement Output Committer for commiting final output files  (was: Implement Output Committer for commiting final outut files)

> Implement Output Committer for commiting final output files
> -----------------------------------------------------------
>
>                 Key: TAJO-591
>                 URL: https://issues.apache.org/jira/browse/TAJO-591
>             Project: Tajo
>          Issue Type: Improvement
>            Reporter: Hyunsik Choi
>
> In Tajo, when some task is failed, QueryMaster retries the task on another node. But, if the task belongs to the final step that generates output files in HDFS, this error occurs because the final output file already exists. In order to solve this problem, we have to implement some kind of output committer which would be similar to that of MR.



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