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the client seems to use the very outdated mysql4 protocol which is not compatible - no idea why it does that only sometimes - maybe a completly wrong error message from the software!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
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