My Profile Photo

Ionut Gavrilut


DevOps Enthusiast | Linux System Administrator | Certified Jenkins Engineer


Jenkins flood the log with DNS Errors

Jenkins is flooding jenkins.log with this type of error:

[DNSQuestion@809381925 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]

In my case, disk usage of jenkins.log was 500G in few hours.

To solve this, you need to add this, as Jenkins arguments, in /etc/sysconfig/jenkins:

## Type: string
## Default:     "-Djava.awt.headless=true"
## ServiceRestart: jenkins
#
# Options to pass to java when running Jenkins.
#
JENKINS_JAVA_OPTIONS="-Djava.awt.headless=true -Dhudson.DNSMultiCast.disabled=true"