[ClusterLabs Developers] bundle/docker: zombie process on resource stop

Jan Pokorný jpokorny at redhat.com
Thu Jul 27 17:26:51 EDT 2017

On 24/07/17 17:59 +0200, Valentin Vidic wrote:
> On Mon, Jul 24, 2017 at 09:57:01AM -0500, Ken Gaillot wrote:
>> Are you sure you have pacemaker 1.1.17 inside the container as well? The
>> pid-1 reaping stuff was added then.
> Yep, the docker container from the bundle example got an older
> version installed, so mystery solved :)
>   pacemaker-remote-1.1.15-11.el7_3.5.x86_64

As with docker/moby kind of bundles, pacemaker on host knows when it
sets pacemaker_remoted as the command to be run within the container
or not, it would be possible for it in such case check whether this
remote peer is recent enough to cope with zombie reaping and prevent
it from running any resources if not.

The catch -- pacemaker on host cannot likely evalute this "recent
enough" part of the equation properly as there was no LRMD protocol
version bump for 1.1.17.  Correct?  Any other hints it could use?

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