[
https://issues.apache.org/jira/browse/MESOS-3349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741873#comment-14741873
]
haosdent commented on MESOS-3349:
---------------------------------
[~jieyu] I try that on Ubuntu 14.04 (3.13.0-32) and CentOS 6 (2.6.32-504) And
sure why umount success and rmdir failed is because executor is still running
and holding the mount point after I add trace code in executor.cpp. This is
also the reason why we could rmdir success after few seconds. Because executor
would terminated in few seconds after send TASK_FINISH.
We could reproduce this problem through these simple shell snippet
{code}
mkdir /tmp/source /tmp/target
mount --bind /tmp/source /tmp/target
unshare -m /bin/bash -- -c "sleep 2" &
umount /tmp/target && rmdir /tmp/target
{code}
And this test case also simulate this problem:
https://reviews.apache.org/r/38300/diff/1#index_header
> PersistentVolumeTest.AccessPersistentVolume fails when run as root.
> -------------------------------------------------------------------
>
> Key: MESOS-3349
> URL: https://issues.apache.org/jira/browse/MESOS-3349
> Project: Mesos
> Issue Type: Bug
> Components: test
> Environment: Ubuntu 14.04, CentOS 5
> Reporter: Benjamin Mahler
> Assignee: haosdent
> Labels: flaky-test
>
> When running the tests as root:
> {noformat}
> [ RUN ] PersistentVolumeTest.AccessPersistentVolume
> I0901 02:17:26.435140 39432 exec.cpp:133] Version: 0.25.0
> I0901 02:17:26.442129 39461 exec.cpp:207] Executor registered on slave
> 20150901-021726-1828659978-52102-32604-S0
> Registered executor on hostname
> Starting task d8ff1f00-e720-4a61-b440-e111009dfdc3
> sh -c 'echo abc > path1/file'
> Forked command at 39484
> Command exited with status 0 (pid: 39484)
> ../../src/tests/persistent_volume_tests.cpp:579: Failure
> Value of: os::exists(path::join(directory, "path1"))
> Actual: true
> Expected: false
> [ FAILED ] PersistentVolumeTest.AccessPersistentVolume (777 ms)
> {noformat}
> FYI [~jieyu] [~mcypark]
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
