Server is going down because of jbd2/dm process consuming all I/O

mlopez

Active Member
Dec 17, 2020
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My web/email server is going down several times a day because of the process [jbd2/md1-8] which is using 99.99% IO according to iotop.

I've realized that MySQL (MariaDB 10.3.28) has something to do with it: the problem seems to be caused on database reading/writing.

I benchmarked the HD and it's ok, even better than others servers with no performance issues.
This server has just a few accounts (12 users, and a couple of them just use mail server, not mysql)

The specs are as follows:

CentOS Linux 7 (Core) x86_64
Kernel: 3.10.0-1160.15.2.el7.x86_64
CPU: Intel (Broadwell, IBRS) (4) @ 3.599GHz
Memory: 2439MiB / 14030MiB

How can I get rid of this io consumming process?

Thank you for your help.
 
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ZenHostingTravis

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PartnerNOC
May 22, 2020
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