Well the search function seems to become more and more useless, i.e. I've now tried to search something 10 times in a row and always either got the PHP error from above or an EMPTY_RESPONSE from the server...
I did a little research and came up with this statement about the error (
source):
This error basically means that sometime between when the page load began (which means an sql connection was made) but before the end the page the mysql connection dropped. This should *never* happen but it does, I don't know why but it does.
Laurent: Could you maybe check the MySQL logs & SFM logs for strange mysql drops or similar and/or contact your hoster, maybe they know more about this...
I've also found these two threads, but I haven't digged all the way through it, but maybe there's a solution somewhere:
http://www.simplemachines.org/community/index.php?topic=423482.0http://portamx.com/2835/error_log-shows-an-error-in-subs-db-mysql-php-on-line-130/Or does
this solution fix it?
Edit: Ah well binary actually linked already to that issue, so it seems to be that the MySQL server just drops the connection because of too much load. So this should be solved by the hoster...