Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
We have a two node cluster that has Pacemaker and DRBD 8.4 on RHEL 6 configured in HA. The application is a monitoring system that has a web front end and uses Postgresql as a backend. The Postgres db uses the DRBD device for it's datastore. I'm trying to get a configuration that will deterministically resolve split brain when it happens. The first priority is to have one and only one node running the HA stack and have that updating the database with monitoring data. The second priority is, in the event of a split brain, to resolve to the most recent content. I've looked at the automatic split brain recovery in the docs, and tried a couple of things but I think I'm missing something to get the resolution in the case of two standalones. Also, I'm thinking based on some other list entries that fencing is the way to go, but I'm not sure how to proceed. I'm getting split brain on occasion when the I/O between the nodes goes down. We have two switches in a redundant configuration connecting the nodes. For unrelated reasons I can't change the interconnect. Any suggestions, referrals to docs, etc., would be greatly appreciated. Thanks! David -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20160603/925133ed/attachment.htm>