Upgrading from Jenkins LTS 2.150.1 to 2.150.2 - Slowness and Workaround

[Kurt Routley, MSc]

Hello,

After upgrading from Jenkins LTS 2.150.1 to 2.150.2, we observed significant slowdown when loading any page on Jenkins. Load times were previously sub-second, and were now taking 4 seconds or longer after the upgrade.

 

Workaround for this was to clear cookies from the local browser for the Jenkins instance. After re-login to Jenkins, load times were back to normal for the user.

 

Since the security advisory for https://jenkins.io/security/advisory/2019-01-16/ was the main motivation for the upgrade, you may want to mention in the security advisory about the additional step for users to clear their cookies for the Jenkins instance, as the pre-existing cookies appear to be incompatible.

 

Thanks,

- Kurt Routley, MSc 

[Stuart Rowe]

This has been reported in https://issues.jenkins-ci.org/browse/JENKINS-56243. Unfortunately the workaround is only temporary.