[jira] [Created] (AURORA-1755) Mounts created by executor when using filesystem isolation are leaking to the host filesystem's mtab

["Joshua Cohen (JIRA)" <ji...@apache.org>]

Joshua Cohen created AURORA-1755:
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             Summary: Mounts created by executor when using filesystem isolation are leaking to the host filesystem's mtab
                 Key: AURORA-1755
                 URL: https://issues.apache.org/jira/browse/AURORA-1755
             Project: Aurora
          Issue Type: Bug
          Components: Executor
            Reporter: Joshua Cohen


{noformat}
$ cat /etc/mtab |grep /var/lib/mesos |wc -l
432
{noformat}

In theory this should not be happening, because the executor should be running in its own mount namespace. In practice... something is awry. Should talk to Mesos folks to see what's going on, but we have a few easy solutions regardless:

add the -n flag to the mount command to not create the mtab entry.
run the mount commands through mesos-containerizer launch's --pre-exec which will create the mount in the isolated fileystem's namespace.



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