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From "Akira Ajisaka (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14683) FileStatus.compareTo binary compat issue between 2.7 and 2.8
Date Thu, 27 Jul 2017 05:23:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16102723#comment-16102723
] 

Akira Ajisaka commented on HADOOP-14683:
----------------------------------------

bq. It would be wise to use instanceof prior to blindly casting.
Generally yes, but if we use instanceof, we need to throw some Exception explicitly, which
is the same as casting without type check. I'll update javadoc to add {{@throws ClassCastException}}.

> FileStatus.compareTo binary compat issue between 2.7 and 2.8
> ------------------------------------------------------------
>
>                 Key: HADOOP-14683
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14683
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.8.0, 2.8.1
>            Reporter: Sergey Shelukhin
>            Assignee: Akira Ajisaka
>            Priority: Blocker
>         Attachments: HADOOP-14683-branch-2-01.patch
>
>
> See HIVE-17133. Looks like the signature change is causing issues; according to [~jnp]
this is a public API.
> Is it possible to add the old overload back (keeping the new one presumably) in a point
release on 2.8? That way we can avoid creating yet another shim for this in Hive.



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