I am using MariaDB galera cluster with two nodes + one node for arbiter. My system has 24 core CPU. I am getting stuck with CPU bound. Sometimes, my system consume CPU time to 1000% and CPU load get above 16.
mysqld process consume about 200-300% and normally CPU load is about 2-3.
I am monitoring process list. I don't know why some system process like md126_raid1, irqbalance... suddenly consume CPU so much. There is nothing in
dmesg. I am running multi master on galera so there is some conflict in error messages of mysqld but I think it is natural and mysqld not consume CPU so much.
Do you know any ideas for my problem ?
P/S: Sorry if my english is not good.