Heavy Cpu Load After Update To 1.5.4

[adr.rock]

Hello,
we uprade from 1.5.1 () to 1.5.4.
From this time we have heavy CPU load from MySQL engine:


top - 20:26:54 up 5 min, 1 user, load average: 13.34, 7.94, 3.37
Tasks: 185 total, 3 running, 182 sleeping, 0 stopped, 0 zombie
Cpu0 : 95.0%us, 1.0%sy, 0.0%ni, 3.0%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu1 : 97.0%us, 0.0%sy, 0.0%ni, 2.0%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 93.9%us, 1.0%sy, 0.0%ni, 2.0%id, 3.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu3 : 91.0%us, 2.0%sy, 1.0%ni, 5.0%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 16439788k total, 2658144k used, 13781644k free, 27088k buffers
Swap: 2031608k total, 0k used, 2031608k free, 454528k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2802 mysql 15 0 17.5g 1.8g 4612 S 377 11.5 14:56.57 mysqld
3181 zabbix 20 5 134m 3760 2308 S 1 0.0 0:00.10 zabbix_server
3193 zabbix 21 5 134m 3748 2284 S 1 0.0 0:00.11 zabbix_server
3195 zabbix 20 5 134m 3720 2260 S 1 0.0 0:00.11 zabbix_server
3248 zabbix 20 5 82824 1944 524 S 1 0.0 0:00.21 zabbix_server
3300 zabbix 20 5 82056 1992 1192 R 1 0.0 0:00.41 zabbix_server
3337 root 15 0 12716 1136 796 R 1 0.0 0:01.70 top
1 root 18 0 10312 680 568 S 0 0.0 0:01.69 init


After start up Zabbix server is not possible stop them - zabbix_server daemon become zombie.
StartDBSyncers=0 help a little (zabbix_server stop OK), performance is little bit better, but still about 80% CPU load...

HW config:
- QUAD CORE XEON
- 16 GB RAM fully buffered
- HW RAID 0 (www.areca.com.tw) with 6 SATA
- 64bit CentOS

before uprade CPU util to 20%...

Any ideas?

Thanks.

[trikke]

Hi

I had a similar problem/behaviour. It seemed that the new Server was handling the escalation differently. I deleted all the events and alarms I had in the DB, permitting the Server to "Start from Zero". This helped my getting the trafic/load down! Don't know if this is your problem though!! Just check with debug level on!

Greets
Patrick

[bbrendon]

I would run that latest build from SVN and make sure to disable all the actions.

I upgraded to 1.5 about 2 weeks ago and have had good success. I have it running in production now.