Chun-Hung Hsiao created MESOS-8522:
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Summary: `prepareMounts` in Mesos containerizer is flaky.
Key: MESOS-8522
URL: https://issues.apache.org/jira/browse/MESOS-8522
Project: Mesos
Issue Type: Bug
Components: containerization
Affects Versions: 1.5.0
Reporter: Chun-Hung Hsiao
The
[{{prepareMount()}}|https://github.com/apache/mesos/blob/1.5.x/src/slave/containerizer/mesos/launch.cpp#L244]
function in {{src/slave/containerizer/mesos/launch.cpp}} sometimes fails with
the following error:
{noformat}
Failed to prepare mounts: Failed to mark
'/home/docker/containers/af78db6ebc1aff572e576b773d1378121a66bb755ed63b3278e759907e5fe7b6/shm'
as slave: Invalid argument
{noformat}
The error message comes from
https://github.com/apache/mesos/blob/1.5.x/src/slave/containerizer/mesos/launch.cpp#L#L326.
Although it does not happen frequently, it can be reproduced by running tests
that need to clone mount namespaces in repetition. For example, I just
reproduced the bug with the following commands after 17 minutes:
{noformat}
sudo bin/mesos-tests.sh --gtest_filter='*ROOT_PublishResourcesRecovery'
--gtest_break_on_failure --gtest_repeat=-1 --verbose
{noformat}
No that in this example, the test itself does not involve any docker image or
docker containerizer.
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