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From "Pierre Cheynier (JIRA)" <>
Subject [jira] [Created] (MESOS-7007) filesystem/shared and --default_container_info broken since 1.1
Date Thu, 26 Jan 2017 11:33:25 GMT
Pierre Cheynier created MESOS-7007:

             Summary: filesystem/shared and --default_container_info broken since 1.1
                 Key: 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

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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