[jira] [Created] (AURORA-494) aurora_admin's perform_maintenance_hosts command doesn't fail on unknown hosts

["David Robinson (JIRA)" <ji...@apache.org>]

David Robinson created AURORA-494:
-------------------------------------

             Summary: aurora_admin's perform_maintenance_hosts command doesn't fail on unknown hosts
                 Key: AURORA-494
                 URL: https://issues.apache.org/jira/browse/AURORA-494
             Project: Aurora
          Issue Type: Bug
          Components: Client, Scheduler
            Reporter: David Robinson
            Priority: Minor


If you feed the aurora_admin's perform_maintenance_hosts command a filename containing a list of random strings (supposedly FQDNs) it'll happily drain those random strings!

{noformat}
$ cat drain.txt 
my-imaginary-server
your-imaginary-server
any-imaginary-server
$ aurora_admin perform_maintenance_hosts --filename=drain.txt my-cluster
 INFO] Ending maintenance for: set(['my-imaginary-server', 'your-imaginary-server', 'any-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Maintenance status for: set(['my-imaginary-server', 'your-imaginary-server', 'any-imaginary-server'])
 INFO] Starting maintenance for: set(['my-imaginary-server', 'your-imaginary-server', 'any-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Draining tasks on: set(['any-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Sleeping for 30 secs.
 INFO] Maintenance status for: ['any-imaginary-server']
 INFO] Ending maintenance for: set(['any-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Maintenance status for: set(['any-imaginary-server'])
 INFO] Draining tasks on: set(['my-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Sleeping for 30 secs.
 INFO] Maintenance status for: ['my-imaginary-server']
 INFO] Ending maintenance for: set(['my-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Maintenance status for: set(['my-imaginary-server'])
 INFO] Draining tasks on: set(['your-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Sleeping for 30 secs.
 INFO] Maintenance status for: ['your-imaginary-server']
 INFO] Ending maintenance for: set(['your-imaginary-server'])
 INFO] Response from scheduler: OK (message: None)
 INFO] Maintenance status for: set(['your-imaginary-server'])
{noformat}

It'd be great if there was actually some validation that notified a user if a host wasn't valid.

This tripped me up because I was using hostnames instead of the FQDNs. Easy mistake to make, difficult to troubleshoot when everything says 'OK'.



--
This message was sent by Atlassian JIRA
(v6.2#6252)