Hi, On Thu, Sep 19, 2024 at 04:46:28PM +0530, Narendran .j wrote: > I have facing a problem in failback. I just promoted my secondary as master > by using pg_ctl promote.it was successful.so now how can I bring my old > master as primary I tried with pg_rewind it's not working. You need to bring your old primary as standby first, then switchover back to it - otherwise, you would have two primaries, no? In general, pg_rewind is the only reasonable way to recover a failed over primary other than by rebuilding it from scratch as a standby. So if pg_rewind did not work, we would need more information, like what command did you issue exactly and what was the output/error message? Michael
