Increasing Pollers, discoverers etc stops Zabbix

[louis-m]

I'm trying to increase the number of discoverers from 10 to 20 but zabbix then refuses to start with "too many database connections"
I've increase max_mysql_connections to 1000 but it still does the same.
Any idea?

[aib]

Check the thread "zabbix server dies with mysql max_user_connections problem"
There are some useful configuration tips.

[louis-m]

doh.... silly me.
not sure what went wrong as i altered my.cnf with what mysqltuner recommended. it didn't really make any difference.
i was then browsing about with webmin and used the mysql server config in there.
it overwrote my.cnf and now i can increase everything.
i've currently got 150 pollers running but if i increase this to 200, zabbix still shows it as 24% busy,
I have 16gb ram to play on a dual xeon with raid 10 and have currrently allocated 4gb to mysql although i will put this up to 8gb.

should i keep increasing the poller processes in an attempt to lower the busy time?