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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