I think all it means is that is doesn't need some of the pg_clog files
and is reusing them, basically meaning you are pushing through lots of
transactions. I don't see it as a problem.
---------------------------------------------------------------------------
Josh Berkus wrote:
> Folks,
>
> I'm still having trouble with my massive data transformation procedures
> taking forever to finish. Particularly, many of them will get about
> 1/2 way through, and then I will start seeing this in the log:
>
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000E4
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000E5
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000E6
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000E7
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000E8
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000E9
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000EA
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000EB
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000EC
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000ED
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000EE
> 2002-10-08 20:37:13 DEBUG: recycled transaction log file
> 0000000A000000EF
> 2002-10-08 20:37:13 DEBUG: reaping dead processes
> 2002-10-08 20:37:13 DEBUG: child process (pid 15270) exited with exit
> code 0
>
> ... repeat ad nauseum. The problem is, each "recycle transaction log
> ... reaping dead child process" cycle takes about 4-7 minutes ...
> meaning that the procedure can take up to 1/2 hour to finish, and
> sometimes not finish at all.
>
> Obviously, the system is telling me that it is running out of resources
> somehow. But I'm at my wit's end to figure out what resources,
> exactly. Suggestions?
>
> -Josh Berkus
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
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+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
