LocalDirAllocator should incorporate LocalStorage -------------------------------------------------
Key: HADOOP-7551 URL: https://issues.apache.org/jira/browse/HADOOP-7551 Project: Hadoop Common Issue Type: Improvement Components: fs Affects Versions: 0.20.204.0 Reporter: Eli Collins The o.a.h.fs.LocalDirAllocator is not aware of o.a.h.m.t.LocalStorage (introduced in MAPREDUCE-2413) - it always considers the configured local dirs, not just the ones that happen to be good. Therefore if there's a disk failure then *every* call to get a local path will result in LocalDirAllocator#confChanged doing a disk check of *all* the configured local dirs. It seems like LocalStorage should be a private class to LocalAllocator so that all users of LocalDirAllocator benefit from the disk failure handling and all the various users of LocalDirAllocator don't have to be modified to handle disk failures. Note that LocalDirAllocator already handles faulty directories. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira