Jenkins produces blank page and crashes

[Christoph M]

Hi,

I have the following problems with our jenkins setup for about a week now:

From time to time the Jenkins becomes very slow and seconds after this i only get blank pages, running jobs quit and the CPU usage of its Java process stays at ~80%.

All I can do is restarting the service.

Jenkins runs on a Windows machine, its version and all plugins are up-to-date and the Java VM is allowed to use 1 GB of RAM.

Taking a look into Jenkins' log after a crash gives me lots of these errors:

Failed to load com.cloudbees.hudson.plugins.folder.properties.AuthorizationMatrixProperty$DescriptorImpl
java.lang.InstantiationException: java.lang.NoClassDefFoundError: com/cloudbees/hudson/plugins/folder/AbstractFolderPropertyDescriptor

Maybe this is the reason for the crashes or is there another option? But the plugin is used by many other plugins so I can't just remove or disable it.

Please tell me if you need more information.

Thanks a lot!

[Daniel Beck]

On 06.04.2016, at 11:48, Christoph M <chm...@gmail.com> wrote:

> Please tell me if you need more information.
>

You need to create a thread dump to see what Jenkins is doing.

https://wiki.jenkins-ci.org/display/JENKINS/Obtaining+a+thread+dump

[Christoph M]

Hi, thanks for your answer! When do I need to capture a thread dump? When it's operating normally, directly after a creash or while crashing (creating blank pages)?

[Daniel Beck]

On 06.04.2016, at 12:37, Christoph M <chm...@gmail.com> wrote:

> Hi, thanks for your answer! When do I need to capture a thread dump? When it's operating normally, directly after a creash or while crashing (creating blank pages)?

All of the above, ideally. It's a cheap enough operation.

[Christoph M]

My message was deleted. Why?

[Christoph M]

Okay, I'll give it another try:

Original message:

---

Hi Daniel,

I just waited for another crash (this time Jenkins doesn't even respond) and captured some thread dumps via jstack.

The files are attached to this message:

crashed: While Jenkins didn't respond

afterrestart: Directly after Jenkins came up again and all nodes connected

normally: After one successful build and during another

I just replaced some node names and ip addresses and hope this information will be helpful.

- Christoph

[Christoph M]

Okay - it seems that my messages are deleted when I'm trying to upload files. Posing them as cler text here will cut them. Could you please tell me how I can serve them properly here?

[Daniel Beck]

On 07.04.2016, at 13:30, Christoph M <chm...@gmail.com> wrote:

> it seems that my messages are deleted when I'm trying to upload files

This is a mailing list, typically received via email subscription. I expect that almost everyone on this list has received your stack traces multiple times by now, even if Google deletes them from their archive.

[Vincent Latombe]

Personally I didn't receive the attachments. You can use github gists or pastebin for such things.

Vincent

--
You received this message because you are subscribed to the Google Groups "Jenkins Developers" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-de...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-dev/B894A30A-4D28-492E-9D15-A0A84C7B0210%40beckweb.net.

For more options, visit https://groups.google.com/d/optout.