I've prepared a significantly simplified version of the patch. The two
main changes are

(a) it does not update the pg_stat_bgwriter anymore, it just prints an
info to the server log

(b) a new GUC is not required, it's driven by the log_checkpoints

This version will log at least 10 'checkpoint status' lines (at 10%, 20%,
30%, ...) and whenever 5 seconds since the last log elapses. The time is
not checked for each buffer but for 128 buffers.

So if the checkpoint is very slow, you'll get a message every 5 seconds,
if it's fast you'll get 10 messages.

Tomas

In response to

• PATCH: regular logging of checkpoint progress at 2011-08-25 20:57:11 from Tomas Vondra

Responses

• Re: PATCH: regular logging of checkpoint progress at 2011-09-02 07:47:26 from Magnus Hagander
• Re: PATCH: regular logging of checkpoint progress at 2011-09-02 17:09:42 from Robert Haas

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