[jira] [Created] (YARN-1940) deleteAsUser() terminates early without deleting more files on error

["Kihwal Lee (JIRA)" <ji...@apache.org>]

Kihwal Lee created YARN-1940:
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             Summary: deleteAsUser() terminates early without deleting more files on error
                 Key: YARN-1940
                 URL: https://issues.apache.org/jira/browse/YARN-1940
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Kihwal Lee


In container-executor.c, delete_path() returns early when unlink() against a file or a symlink fails. We have seen many cases of the error being ENOENT, which can safely be ignored during delete.  

This is what we saw recently: An app mistakenly created a large number of files in the local directory and the deletion service failed to delete a significant portion of them due to this bug. Repeatedly hitting this on the same node led to exhaustion of inodes in one of the partitions.

Beside ignoring ENOENT,  delete_path() can simply skip the failed one and continue in some cases, rather than aborting and leaving files behind.



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