I've been playing around with recovery and am a bit confused as to
when this method gets invoked.
At the moment, I have two servers set up, both of them with postgres
installed. Lets call them server A and server B. Server A is running
postgres and processing transactions. Server B has postgres installed,
but the postmaster is not running. My archive_command is set to use
rsync copy the wal log from server A to server B. When i'm watching the
number of wal files on server A I notice sometimes there are 3 files
that have not been archived, sometimes there are 4, and sometimes there
are more.
So, my question is, when is archive_command invoked?
Thanks in advance!
Kris
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