Re: - Mailing list pgsql-admin

From Henry Korszun
Subject Re:
Date
Msg-id 1398449399.70260.YahooMailNeo@web162701.mail.bf1.yahoo.com
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In response to Re:  (Scott Whitney <scott@journyx.com>)
Responses Re:  (Jerry Sievers <gsievers19@comcast.net>)
List pgsql-admin
I understand what you're saying, but I don't know what's causing the "touch" in the first place.  I guess I need to further examine/debug. Thanks for your help.
On Friday, April 25, 2014 2:00 PM, Scott Whitney <scott@journyx.com> wrote:
The slave doesn't "turn off" the master. The trigger file is intended to be touched _when the master is down_.

Since the master never WENT down (or came back up) and the trigger file was touched, the slave got promoted.

You'll need to stop the slave, run your select pg_startbackup(), rsync, etc to get your slave back to slave mode.




There IS a trigger file, which does appear to have been "touch"ed.  But the problem is that a fail-over hasn't really occurred since the original read/write primary continues to be a fully functioning read/write machine. But it's no longer replicating to the erstwhile standby, which has become read/write.  Bottom line, I now have 2 read/write machines, but with no replication between them.
On Friday, April 25, 2014 1:43 PM, Scott Whitney <scott@journyx.com> wrote:
Sounds like you might have a "trigger_file" set in your recovery.conf. Do you? That or someone is issuing a pg_ctl promote command.


I'm using PostgreSQL 9.2.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.1.2 20070115 (SUSE Linux), 64-bit.

I set up streaming replication for a read/write primary and a read/only standby. The replication works fine for a while, and then out of the blue BOTH machines become read/write, but with no replication from the original primary to the newly read/write standby.

The only log entry that seems relevant is as follows: FATAL,57P01,"terminating walreceiver process due to administrator command",,,,,,,,"ProcessWalRcvInterrupts, walreceiver.c:150",""

Any help/guidance would be appreciated. Thanks in advance.







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