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" <yhema...@gmail.com> wrote: >Hi, > >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 ? > >Thanks >hemanth