SOLVED High CPU load - bzip2 maillog

[diedrichg]

• FreeNAS 11.2-U3 STABLE
• Supermicro X10SLM-F-O uATX
• Intel Xeon E3-1270 v3
• Kingston 32GB (8GB x 4) ECC w/Hynix DRAM, 1333MHz, 1.5V - KVR1333D3E9SK2/16G
• (4) WD Red 2TB in RaidZ2
• Boot drive: Supermicro 16GB SATADOM - SSD-DM016-PHI

I just noticed that over the past four days my CPU usage has increased 20% each day and is now maxed out on five threads at 100%. I ran top and got a few PIDs so I could run procstat -c PID. The result is 78164 bzip2 /usr/bin/bzip2 -f /var/log/maillog.3 The other codes are showing the same thing with various maillog.x numbers. Killing those PIDs brought my CPU back down to idle. WTF is going on?!

Edit: Could it be that the root user email was accidentally removed and therefore the system couldn't find an email address to send alerts to? How can I test the alert email feature?

 

[Chris Moore]

See the documentation. The button marked "Send Mail" is probably the equivalent button to the one in the old UI that was marked "Send Test Email"

https://www.ixsystems.com/documentation/freenas/11.2/system.html#email

 

[diedrichg]

Update: After killing the rogue bzip2 processes, I then went to the root user's account screen and put in a valid email and saved the change. 24 hours later my machine is happy. I have created a bug to require a valid email to be entered for the root user and to make sure that the password field cannot be left blank. Bug # NAS-101425