CODEWITHSUNDEEP
jenkins
Bossk
Bossk

Reputation: 747

Jenkins GUI very slow - fast after browser cache clear

We have a Jenkins master + 5 slaves setup.

The recent weeks the Jenkins GUI has started slowing down for us, up to the point that loading of Jenkins GUI periodically takes minutes. After loading it is still slow, Jenkins does not feel very responsive at all.

Curiously, when I open Jenkins AND clear all browser caches (cookies, cache etc) the Jenkins GUI is blazing fast, everything loads fine then. The next day the GUI also starts to slow down, until I clear all browser cookies + caches again. I tested this in Chrome + IE, same results.

Some things I already checked and tried:

So, I'm out of ideas. It is something related to the browser/client since clearing the cookies/cache fixes the problem for users.

Any ideas what may be the real problem with Jenkins?

When the GUI is loaded and slow, what I see that many requests to static resources are very long pending, eg. this resource: /static/1f01833b/images/32x32/red_anime.gif

Upvotes: 12

Views: 9082

Answers (2)

Bossk
Bossk

Reputation: 747

Update: This is the Jira ticket regarding this issue:

https://issues.jenkins-ci.org/browse/JENKINS-56243

Quite a few people are having the same problem, and Active Directory does not seem the root cause because people report having the same issue without AD integration. Unfortunately the Jenkins developers do not seem to give it much priority...

Upvotes: 4

Bossk
Bossk

Reputation: 747

This cookie was causing the slowdown problems in the GUI: ACEGI_SECURITY_HASHED_REMEMBER_ME_COOKIE

When I cleared this cookie (and performed a relogin) Jenkins was very fast again.

It is not a true fix, but for us a decent workaround:

Enabling the "Disable remember me" under Configure Global Security fixed it for us (effectively removing the "Remember me" from the login screen.

Upvotes: 12

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