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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10397) Distcp should ignore -delete option if -diff option is provided instead of exiting
Date Thu, 12 May 2016 22:47:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mingliang Liu updated HDFS-10397:
---------------------------------
    Affects Version/s: 2.8.0
     Target Version/s: 2.8.0
               Status: Patch Available  (was: Open)

> Distcp should ignore -delete option if -diff option is provided instead of exiting
> ----------------------------------------------------------------------------------
>
>                 Key: HDFS-10397
>                 URL: https://issues.apache.org/jira/browse/HDFS-10397
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.8.0
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>         Attachments: HDFS-10397.000.patch
>
>
> In distcp, {{-delete}} and {{-diff}} options are mutually exclusive. [HDFS-8828] brought
strictly checking which makes the existing applications (or scripts) that work just fine with
both {{-delete}} and {{-diff}} options previously stop performing because of the {{java.lang.IllegalArgumentException:
Diff is valid only with update options}} exception.
> To make it backward incompatible, we can ignore the {{-delete}} option, given {{-diff}}
option, instead of exiting the program. Along with that, we can print a warning message saying
that _Diff is valid only with update options, and -delete option is ignored_.



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