Re: statistics buffer is full

On Wed, 2006-11-08 at 18:46 -0800, Jeff Frost wrote:
> What does the message 'statistics buffer is full' mean? And if I saw lots of
> these in my logs what sort of bad things would happen? Presumably this is
> related to the planner statistics? Would I expect to have bad plans if this
> happens and how would I resolve it? This is what I found in the source, but
> I'm not really sure what's going on here:

Usually it means that you have stats_command_string turned on :)

>
> Part of:
>
> pgstat_recvbuffer(void)
> <snip>
> /*
> * As long as we have buffer space we add the socket to the read
> * descriptor set.
> */
> if (msg_have <= (int) (PGSTAT_RECVBUFFERSZ - sizeof(PgStat_Msg))
> )
> {
> FD_SET(pgStatSock, &rfds);
> maxfd = pgStatSock;
> overflow = false;
> }
> else
> {
> if (!overflow)
> {
> ereport(LOG,
> (errmsg("statistics buffer is full")));
> overflow = true;
> }
> }
>
>
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