Github user yibter commented on the pull request:
https://github.com/apache/incubator-metron/pull/62#issuecomment-202630163
Sounds like a plan @dlyle65535! So, based on what you were saying about the
register and the fail block, I found this guy...
http://docs.ansible.com/ansible/playbooks_error_handling.html#controlling-what-defines-failure
Looks like the "ignore_errors + register + the separate fail block w/ the
explicit message" pattern can be collapsed into a "register + failed_when"
pattern, so something like this maybe...
```yaml
register: put_result
failed_when: "put_result | failed and 'File exists' not in
put_result.stderr"
```
And then in a completely different direction, looks like the
"[copyFromLocal](https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-common/FileSystemShell.html#copyFromLocal
)" (instead of the put) command supports the force (-f) flag... which would
just overwrite the destination without throwing an error.
So thoughts on which you'd prefer...
1. Separate Fail Block w/ Messaging.
2. Failed_when that will do a normal fail if it's not a fail exists issue
3. Use a copyFromLocal w/ the override flag (instead of the put)
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