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Re: Issues with devicemapper - advice for the others

Are you writing large amounts of data to the container image?  We wouldn't recommend that normally - graylog sending a lot of io to the container seems wrong in general.   Is the data directory an empty dir volume, or persistent volume?

It would be good to get a representative io log from one of your machines that would help us identify what the issue is.

On Feb 10, 2016, at 3:42 PM, Philippe Lafoucrière <philippe lafoucriere tech-angels com> wrote:

On Wed, Feb 10, 2016 at 11:47 AM, Scott Dodson <sdodson redhat com> wrote:
If you're not using centos/rhel packages give this a try, I've not
followed this myself but it looks sane

According to this doc, we're using devicemapper + direct-lvm (no "Data loop fils" in docker info, nor "Metadata loop file").
We have started the container on a dedicated VM, with AUFS, and the problem is gone.
We have panicked each node where this container was started, so I guess "devicemapper + direct-lvm" is not also a viable option :(
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