Andrew Sullivan wrote: > On Thu, May 17, 2007 at 12:50:56PM -0400, John D. Burger wrote: >> Shoot The Other Node In The Head: >> >> http://www.linux-ha.org/STONITH > > Right. I have heard people tell me this works as advertised, but > I've never used it. I can tell you that a certain large, well-known > blue company has a similar product, that in my experience does _not_ > always work as advertised.
Sure a HA setup is nothing that is setup over a weekend. I've spend about 3-4 months with testing. Correct node and resource fencing is essential and any mistake will cause your boxes go split brain. But it's not that complex either, given a simple 2 node cluster. Just make sure there are enough completely redundant communication paths (we have 4) for heartbeat and never run without a correctly configured and tested STONITH device. In case the STONITH device is a power switch connected directly to the standby node, there is not so much that can fail. My experiences with linux-ha are good. -- Best regards, Hannes Dorbath ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org/