Arpit Agarwal created HADOOP-15493:
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             Summary: DiskChecker should handle disk full situation
                 Key: HADOOP-15493
                 URL: https://issues.apache.org/jira/browse/HADOOP-15493
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Arpit Agarwal
            Assignee: Arpit Agarwal


DiskChecker#checkDirWithDiskIo creates a file to verify that the disk is 
writable.

However check should not fail when file creation fails due to disk being full. 
This avoids marking full disks as _failed_.

Reported by [~kihwal] and [~daryn] in HADOOP-15450. 



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