[ClusterLabs] corosync race condition when node leaves immediately after joining

[Jan Friesse]

>
> On 13/11/17 17:06, Jan Friesse wrote:
>> Jonathan,
>> I've finished (I hope) proper fix for problem you've seen, so can you
>> please try to test
>>
>> https://github.com/corosync/corosync/pull/280
>>
>> Thanks,
>>    Honza
>
> Hi Honza,

Hi Jonathan,

>
> Thanks very much for putting this fix together.
>
> I'm happy to confirm that I do not see the problem with this fix.

That is a good news.

>
> In my repro environment that normally triggers the problem once in every
> 2 attempts, I didn't see the problem at all after over 1000 attempts
> with these patches.

Perfect. I'll wait for proper peer-review of code and merge after that.

Thanks again for your patience and big help with reproducing and testing 
of this bug.

Regards,
   Honza

>
> Thanks!
> Jonathan