Zabbix Performance Tuning

[jdzbx]

Running Zabbix 3.0 processing 186 values per second. CentOS 7 VM with 2 vCPU and 8GB RAM and MariaDB for storage.

I'm seeing a high amount of disk I/O from this vm and trying to determine if there is any performance tuning I can do to help reduce it. Obviously the I/O is from MariaDB.

I'm seeing about 1400 writes/sec and around 40-50MB/s of disk throughput. Does this seem normal for the amount of values per second that zabbix is processing?

Here's a screenshot of the disk I/O from the zabbix vm: http://i.imgur.com/MWv3G1n.png

[LenR]

You might run one of the mysql tuning scripts, like http://www.askapache.com/mysql/perfo...ing-mysql.html

[Stefan_D]

How did you set up your Database File System?
Does the DB have it's own FS?
If yes, did you mount it with "noatime" option?

--
SD

[Colttt]

also a good solution is to set the Linux-IO-scheduler to nnop

http://www.cyberciti.biz/faq/linux-c...-for-harddisk/

[jdzbx]

Thanks for the feedback. I had added a number of network devices, each of which had all of their interfaces enumerated. There were approximately 3500 items per device. I added a filter to remove all of the unnecessary interfaces from the LLD.

After doing so, housekeeping was unable to run successfully. The number of items in the housekeeping table would never go down and the housekeeper busy % was 100. I changed the number of housekeeping items from the default 5,000 to 100 and it was able to complete an interval. After about 8-10 hours it had removed all of the old data from the removed devices and disk I/O went down to an average of around 20-30 iops.