> we have a php application which gets from time to time database errors > which look like there are not enough connections (we have 100 > connections allowed to postgresql) - > > i read that there are two db connections reserved for su. is there a way > to use them from php in order to check if the database is really out of > connections (with - 'SELECT count(*) FROM pg_stat_activity') or the > problem is different? You can connect as superuser on a different connection and issue that SELECT statement. But I wouldn't do that. What if there is a problem and all availaible superuser connections are exhausted? You would not be able to connect to the database any more, even as superuser. I would rather examine the SQLSTATE you get from the failed connection attempt. PostgreSQL returns SQLSTATE 53300 (TOO MANY CONNECTIONS) when the maximum os reached. This way you can distinguish that case from others. Yours, Laurenz Albe
