Gitlab had performance issues after database split-brain

Wei Shan <[email protected]> Fri, 27 Apr 2018 10:05:22 +0000
Newsgroups gmane.comp.db.postgresql.advocacy
Message-ID <CAFe9ZTpzzJNw=Vx_W7o8sGb2_enD1-E+hb6MbdXLOuq-7KngnQ@mail.gmail.com>
Gitlab had some issues recently with PostgreSQL.


   - http://www.theregister.co.uk/2018/04/27/gitlab_outage_april_2018/
   -
   https://docs.google.com/document/d/1_IzyO-jwqb7UFl0A28D1gR4EaU99cEnoUSD9o8q4eZw/edit#

From their timeline report, it looks like they were using repmgr. Somehow,
I don't understand how they manage to get split-brain from a primary
failure with a 5 node cluster.

Does anyone have more insights to this?

-- 
Regards,
Ang Wei Shan