Jenkins hangs after upgrade

[John Zhang]

I upgraded my jenkins yesterday and after that, I cannot connect to it by web.

I tried to start my Jenkins manually by:

java -version:1.7* -jar jenkins.war --prefix=/jenkins

I got the following console output:

Running from: /apps/jenkins/webapp/jenkins.war

webroot: $user.home/.jenkins

Dec 22, 2016 9:03:45 AM winstone.Logger logInternal

INFO: Beginning extraction from war file

Dec 22, 2016 9:03:45 AM org.eclipse.jetty.util.log.JavaUtilLog info

INFO: jetty-8.y.z-SNAPSHOT

Dec 22, 2016 9:03:48 AM org.eclipse.jetty.util.log.JavaUtilLog info

INFO: NO JSP Support for /jenkins, did not find org.apache.jasper.servlet.JspServlet

Jenkins home directory: /home/acqop/.jenkins found at: $user.home/.jenkins

Dec 22, 2016 9:03:48 AM org.eclipse.jetty.util.log.JavaUtilLog info

INFO: Started SelectChann...@0.0.0.0:8080

Dec 22, 2016 9:03:48 AM winstone.Logger logInternal

INFO: Winstone Servlet Engine v2.0 running: controlPort=disabled

Dec 22, 2016 9:03:49 AM jenkins.InitReactorRunner$1 onAttained

INFO: Started initialization

Dec 22, 2016 9:03:49 AM jenkins.InitReactorRunner$1 onAttained

INFO: Listed all plugins

Dec 22, 2016 9:03:49 AM jenkins.InitReactorRunner$1 onAttained

INFO: Prepared all plugins

Dec 22, 2016 9:03:49 AM jenkins.InitReactorRunner$1 onAttained

INFO: Started all plugins

Dec 22, 2016 9:03:49 AM jenkins.InitReactorRunner$1 onAttained

INFO: Augmented all extensions

Dec 22, 2016 9:03:49 AM jenkins.InitReactorRunner$1 onAttained

INFO: Loaded all jobs

So, I cannot find anything abnormal.

Any hints what could be the problem and how to trouble shoot?

John

[John Zhang]

There is a NullPointerException actually: (The Jenkins is running on Solaris 11)

JNA: Callback org.jvnet.solaris.libzfs.ZFSObject$2@15842f threw the following exception:

java.lang.NullPointerException

        at org.jvnet.solaris.libzfs.ZFSObject.create(ZFSObject.java:67)

        at org.jvnet.solaris.libzfs.ZFSObject$2.callback(ZFSObject.java:275)

        at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:606)

[Baptiste Mathus]

Hello,

IMO tbh you're mostly on your own here. I mean the initial research, narrowing down the issue. That because probably only a handful or less of people both run their master on Solaris and follow the list here...

Having done that in the past for an AIX specific issue: Identify the exact version of Jenkins where the issue got introduced.

* Use dichotomy for that. Like try the version in the middle of the [not-working; working] range 

* Iterate until finding the right version 

Note: if you're using and know git a bit. You can also directly go to building the sources yourself. And use git bisect to do that in a more autopilot way. 

* Then file a bug report about that specific issue.

Alternatively/complementarily (but it's obvious anyone already has done that before upgrading): carefully review the changelog for things that may appear related.

HTH 

-- Baptiste

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