Re: Help with finding checkpoint code

It is called by a special child process of the postmaster after a
signal. Search for PMSIGNAL_DO_CHECKPOINT in xlog.c and in postmaster.c.
The checkpoint process gets started out of sigusr1_handler().


On Sat, 2002-08-31 at 23:27, Bruce Momjian wrote:
> I am trying to find when WAL log files are rotated.  The message is:
> 
>   2002-02-11 21:18:13 DEBUG: recycled transaction log file 0000000000000005
> 
> and it is printed in MoveOfflineLogs(), and MoveOfflineLogs() is only
> called by CreateCheckPoint(), but I can't see where CreateCheckPoint()
> is called in normal operation.  I see it called by CHECKPOINT, and on
> startup and shutdown, and from bootstrap, but where is it called during
> normal backend operation.
> 
> -- 
>   Bruce Momjian                        |  http://candle.pha.pa.us
>   pgman@candle.pha.pa.us               |  (610) 359-1001
>   +  If your life is a hard drive,     |  13 Roberts Road
>   +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
>     (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
> 
-- 
J. R. Nield
jrnield@usol.com