Am 18.06.2014 13:30, schrieb Tanstaafl:
I'm very inexperienced mariadb/mysql/sql user/admin, but not totally clueless, been maintaining a tiny mysql DB for postfixadmin for years, then converted it to mariadb.
We recently started using SOGo (groupware). I hired the SOGo guys to help with the install/config, and have been using it trouble-free for a few months now (love it for the most part), until now.
Everything seems to be working fine, but since the upgrade to SOGo 2.2.4 on 6/12, which I am told increases the number of connections it uses to the DB, I have been getting very occasional errors like this (the system error is always either 104 or 0):
2014-06-12 03:30:15.530 sogo-tool[31674] ERROR: could not open MySQL4 connection to database 'sogo'
the client seems to use the very outdated mysql4 protocol which is not compatible - no idea why it does that only sometimes - maybe a completly wrong error message from the software!
which I am told increases the number of connections
Should I be looking at tuning:
max_connections max_user_connections
surely, the have to tell you *how many connections* and not only "increases", there must be a upper limit controlled by the software and multiply it by the users tells you how many connections you need to allow