upgrade to 0.8.1 and plugin troubles

[NexusTwelve]

I tried to upgrade from 0.8-beta4 to 0.8.1, which seemed to work sucessfully. After that I tried to install the beta plugin serendipity_event_userprofile and got this error message when I hit the button to install it:

Warning: mysql_connect(): Can't create a new thread (errno 11). If you are not out of available memory, you can consult the manual for a possible OS-dependent bug in /hsphere/local/home/ekmesnz/dissentispatriotic.net/serendipity/include/db/mysql.inc.php on line 149

Warning: mysql_select_db(): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) in /hsphere/local/home/ekmesnz/dissentispatriotic.net/serendipity/include/db/mysql.inc.php on line 150

Warning: mysql_select_db(): A link to the server could not be established in /hsphere/local/home/ekmesnz/dissentispatriotic.net/serendipity/include/db/mysql.inc.php on line 150
DATABASE_ERROR

I get that message every time I try to load a new page in serendipity. Is it a problem resulting from the plugin? Deleting the plugin didn't change anything as far as I can tell (deleting the file -- the plugin never installed after I got the error message).

[NexusTwelve]

ok, correction: that problem is not the result of the 0.8.1 upgrade or the plugin: the problem is an occasional one, that has plauged all of my users at some point (some more than others, but that may be pure bad luck).

[garvinhicking]

This error is caused by your MySQL server. It looks as if your server occasionally runs out of memory.

Regards,
Garvin