[jira] [Created] (MESOS-7007) filesystem/shared and --default_container_info broken since 1.1

["Pierre Cheynier (JIRA)" <ji...@apache.org>]

Pierre Cheynier created MESOS-7007:
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             Summary: filesystem/shared and --default_container_info broken since 1.1
                 Key: MESOS-7007
                 URL: https://issues.apache.org/jira/browse/MESOS-7007
             Project: Mesos
          Issue Type: Bug
          Components: agent
    Affects Versions: 1.1.0
            Reporter: Pierre Cheynier


I face this issue, that prevent me to upgrade to 1.1.0 (and the change was consequently introduced in this version):

I'm using default_container_info to mount a /tmp volume in the container's mount namespace from its current sandbox, meaning that each container have a dedicated /tmp, thanks to the {filesystem/shared} isolator.

I noticed through our automation pipeline that integration tests were failing and found that this is because /tmp (the one from the host!) contents is trashed each time a container is created.

Here is my setup: 
* {{--isolation='cgroups/cpu,cgroups/mem,namespaces/pid,*disk/du,filesystem/shared,filesystem/linux*,docker/runtime'}}
* {{--default_container_info='\{"type":"MESOS","volumes":\[\{"host_path":"tmp","container_path":"/tmp","mode":"RW"\}\]\}'}}

I discovered this issue in the early days of 1.1 (end of Nov, spoke with someone on Slack), but had unfortunately no time to dig into the symptoms a bit more.

I found nothing interesting even using GLOGv=3.

Maybe it's a bad usage of isolators that trigger this issue ? If it's the case, then at least a documentation update should be done.

Let me know if more information is needed.



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