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On Fri, Sep 11, 2015 at 11:21 PM, Charles Lynch < charleslynchpostgre...@gmail.com> wrote: > So for about a month now, we've been getting things prepared to use a BDR > cluster in a production, multi-region setup on aws. Our initial testing > produced some absolutely fantastic results with replication delays less > than 150ms between singapore, ireland, and north virginia and this is will > SSL encryption. > > We have, just recently, ran into a problem. I created a test cluster only > within NV and after about a week of working without any problems, we got an > error: Unexpected EOF on SSL connection. I had seen something like this > before but on initial cluster join and chalked it up to me doing something > wrong. This was after a week of working without issue. I wasn't sure what > to do next. restarting the database started producing errors like this: > > LOG: starting background worker process "bdr > (6188205071755053119,1,16385,)->bdr (6188203625564571611,1," > FATAL: mismatch in worker state, got 3, expected 1 > LOG: starting background worker process "bdr > (6188205071755053119,1,16385,)->bdr (6188203625564571611,1," > FATAL: mismatch in worker state, got 3, expected 1 > FATAL: mismatch in worker state, got 3, expected 1 > LOG: starting background worker process "bdr > (6188205071755053119,1,16385,)->bdr (6188203625564571611,1," > LOG: worker process: bdr (6188205071755053119,1,16385,)->bdr > (6188203625564571611,1, (PID 20300) exited with exit code 1 > > This would repeat. So I removed this node from the cluster using the > proper bdr commands and tried re-joining but that just resulted in the > return error changing from a 3 to a 0 and the same errors repeating. I have > BDR completely automated and orchestrated using chef so I simply fired up a > new cluster and started over. > > My problem is I don't know what caused this and, more importantly, I'm not > sure how to fix it / prevent it and I can't launch this into production > without figuring this out. > > One other thing: I've seen a lot of conflicting information on how to > setup BDR on ubuntu (using ppas, what pkg to install, and where to get > source) I'm curious now if I don't have a younger version and that this > issue is all but fixed now. Here are my build steps if anyone has any > comments on how to setup bdr better, please let me know. > > I grab postgres 9.4.4 from here: > https://github.com/2ndQuadrant/bdr/archive/bdr-pg/REL9_4_4-1.tar.gz > and compile it with "./configure --prefix=/opt/psql --with-openssl && make > -j4 -s install" > > then I compile and install the btree_gist module > > then I get the BDR plugin from here: > https://github.com/2ndQuadrant/bdr/archive/bdr-plugin/0.9.2.tar.gz > and compile it with "./configure && make -j4 -s all && make install" > > then init the db and set everything with config, ssl certs, and cluster > creation and joining. > > Any help on this would be really appreciated. > > Thanks guys > > Charles > -- Sincerely, Giovanni Maruzzelli Cell : +39-347-2665618
