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Process jbd2/vda1-8 high loading
I am using a $10/month droplet with Ubuntu 14.04. I noticed that a process named “jbd2/vda1-8” pops up from time to time. As soon as it runs, all Apache processes become blocked and my entire server becomes unresponsive.
Some output from “ps auxf” command:
Wed May 27 15:58:10 UTC 2015
root 199 0.0 0.0 0 0 ? D May19 6:52 \_ [jbd2/vda1-8]
Wed May 27 15:58:11 UTC 2015
root 199 0.0 0.0 0 0 ? D May19 6:52 \_ [jbd2/vda1-8]
www-data 27636 0.0 0.9 406192 9604 ? D 15:57 0:00 \_ /usr/sbin/apache2 -k start
Wed May 27 15:58:12 UTC 2015
root 199 0.0 0.0 0 0 ? D May19 6:52 \_ [jbd2/vda1-8]
www-data 27362 0.1 1.1 405668 11672 ? D 15:56 0:00 \_ /usr/sbin/apache2 -k start
www-data 27636 0.0 0.9 406192 9604 ? D 15:57 0:00 \_ /usr/sbin/apache2 -k start
www-data 27685 0.3 1.3 408368 13812 ? D 15:57 0:00 \_ /usr/sbin/apache2 -k start
www-data 27738 0.2 0.9 405252 9340 ? D 15:57 0:00 \_ /usr/sbin/apache2 -k start
The “top” command also shows “wa” above 90.
I realized it is something to do with disk journaling. Can it be disabled, or is anything I can do to reduce the load from “jbd2” without affecting my droplet?
Thanks for any advice!
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I also see this, and it is on a $40/month droplet which also happens to be my main db server for production! This results in 1-2 minutes of really slow response every 30 minutes to an hour. Please any help?
I wrote ticket to support.
And they changed my server without changing my IP address.
No such problems after month using now.
Thanks for the info!
I also had some random I/O loads and [jbd2/vda1-8] process behaving badly on my 80$ droplet. Migration to another hypervisor via DO’s support solved the issue. Two days already so far so good.
Same issue here on my droplet which is in NY2. This thread helped a lot in identifying that the problem was out of my hands. DO support was really great and my droplet which had 20GB of used disk space took only ~5 minutes to migrate and come back online.
The difference is night and day:
showing 3 day history, with red line showing the migration downtime