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From Hemanth Yamijala <yhema...@gmail.com>
Subject Re: Unused API in LocalDirAllocator
Date Wed, 05 Sep 2012 04:48:16 GMT
Thanks. Filed https://issues.apache.org/jira/browse/HADOOP-8765.


On Tue, Sep 4, 2012 at 6:22 PM, Robert Evans <evans@yahoo-inc.com> wrote:
> I don't think it really matters that much.  The API is limited Private and
> unstable, so I would say just remove it, but fixing it is fine too.
> Either way file a JIRA on it.
> --Bobby
> On 9/4/12 6:34 AM, "Hemanth Yamijala" <yhemanth@gmail.com> wrote:
>>Stumbled on the fact that LocalDirAllocator.ifExists() is not used
>>anywhere. The previous usage of this API was in the IsolationRunner
>>that was removed in MAPREDUCE-2606.
>>This API doesn't call the confChanged method and hence there is an
>>uninitialised variable that causes a NullPointerException. So, either
>>we can fix that, or remove the API if it's not required. This is also
>>one of the reasons why the IsolationRunner was broken in 1.0.
>>Thoughts ?

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