Cannot start Jenkins

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After downloading a plugin, the Jenkins server cannot be accessed. I am using windows 7. I tried to start windows Jenkins service manually, but I get the following message:

"Windows could not start the Jenkins service on Local COmputer. Error 1067: The process terminated unexpectedly"

I also tried to run the jenkins.exe from the installation directory, but with no success. In the error logs I see the following:

INFO: Obtained the updated data file for hudson.tasks.Maven.MavenInstaller
Ιουν 06, 2014 11:31:46 ΠΜ hudson.model.DownloadService$Downloadable doPostBack
INFO: Obtained the updated data file for hudson.tools.JDKInstaller
Ιουν 06, 2014 11:32:18 ΠΜ hudson.model.UpdateCenter doSafeRestart
INFO: Scheduling Jenkins reboot
Ιουν 06, 2014 11:33:00 ΠΜ hudson.model.UpdateCenter$DownloadJob run
INFO: Starting the installation of FTP-Publisher Plugin on behalf of anonymous
Ιουν 06, 2014 11:33:15 ΠΜ hudson.model.UpdateCenter doRestart
INFO: Scheduling the core downgrade
Ιουν 06, 2014 11:33:25 ΠΜ hudson.model.UpdateCenter$UpdateCenterConfiguration download
INFO: Downloading FTP-Publisher Plugin
Ιουν 06, 2014 11:33:26 ΠΜ hudson.model.UpdateCenter$HudsonDowngradeJob run
INFO: Starting the downgrade of jenkins.war on behalf of anonymous
Ιουν 06, 2014 11:33:26 ΠΜ jenkins.model.Jenkins$24 run
INFO: Restart in 10 seconds
Ιουν 06, 2014 11:33:26 ΠΜ hudson.model.UpdateCenter$HudsonDowngradeJob run
INFO: Downgrading successful: jenkins.war
Ιουν 06, 2014 11:33:36 ΠΜ jenkins.model.Jenkins$24 run
SEVERE: Restarting VM as requested by anonymous
Error: Unable to access jarfile D:\Program Files (x86)\Jenkins\jenkins.war
Error: Unable to access jarfile D:\Program Files (x86)\Jenkins\jenkins.war
Error: Unable to access jarfile D:\Program Files (x86)\Jenkins\jenkins.war

Can anyone help? We are at release point, and I have nowhere to run my tests..


Check the jenkins.xml there should be something wrong in config. In my case changing -Xmx2048m to -Xmx1024m fixed. Since it is not supported the 2m heap size.

<arguments>-Xrs -Xmx1024m -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -jar "%BASE%\jenkins.war" --httpPort=9090</arguments>

Cannot start Jenkins, Service Fails to Start. Symptoms. * Event Viewer, App: "Service cannot be started. The service process could not connect to the service  Jenkins takes a long time to start; Jenkins hangs on startup; Diagnostic/Treatment. The following recommendation and techniques help to improve and troubleshoot performance issues on startup. They are based on experience with CloudBees customers. Preconditions


thanks a lot for your comments. Apparently the configuration was corrupted (missing war file) because a restart was made, while a plugin was being installed. For my good luck, when i tried to uninstall jenkins (to install it again), i hit the repair button, and all the missing files and configuration was restored. I have to give this point to windows OS :)

Jenkins windows service fails to start - Jenkins, Cannot start Jenkins agent service on Windows host. First of all check if node active and running properly. Go to Services – Jenkins agent service. Check status of this service, in my case it was “Stopped” Cannot start Jenkins agent service on Windows host Our architecture – one master Jenkins, that have few Windows nodes and several Linux nodes. All nodes added and configured properly. But for some reason, connection with one of Windows nodes was broken.


Execute this by providing absolute path of the war file java -jar

Cannot start Jenkins agent service on Windows host machine, I'm using Jenkins on a Windows 7 VM. I recently tried to upgrade from V2.19 to the latest, v2.63. However, after installing the war, I got an error  Simply just do one thing.To restart Jenkins manually, you can use either of the following commands on Windows platform. Clean the "AppData\Local\Temp" folder. In search of windows type %temp%. then clean the folder. Then try restarting Jenkins.


download jenkins.war at https://updates.jenkins-ci.org/download/war/

put jenkins.war to

restart jenkins service

[JENKINS-44649] Cannot start Jenkins service after upgrade to V2 , I had disabled the CloudBees assurance Program (CAP) and somehow, after installing a plugin and restarting, my Jenkins instance fails to start  All other 2.x releases do not have this problem, as it's caused by different build/release processes for weeklies/LTS, and 2.7.1 being the first 2.x based LTS – and still using the master branch of packaging. KK is on it, we'll probably just re-release 2.7.1 packages with the correct scripts.


This error usually shows, when you don't have Java on your machine. Jenkins relay on Java.

Follow these steps to fix the issue:

sudo yum install java-1.8.0-openjdk
systemctl enable jenkins
systemctl start jenkins
systemctl status jenkins

Hopefully it will help.

Jenkins instance fails to start – CloudBees Support, You wont need it once Jenkins is installed. You could also try to disable certificate checking this way (though I'm unsure if this will work.) 1) Create the directory:  Jenkins will no longer start as a Windows Service after windows patch KB2661254 is installed. When trying to the start Jenkins as a service, the following error is received "Error 1053: The service did not respond to the start or control request in a timely fashion.".


Jenkins Install, Service Start failure, It doesn't actually matter which port you use—you can change this later. Starting Jenkins using Java Web Start. Figure 3.4. Starting Jenkins using Java Web Start. I had the similar issue, tried to upgrade Jenkins as it was asking, but then it the Windows service won't start, something else was running on port 8080. Turned out was an instance of java.exe process after I killed it in Task Manager all started to work nicely.


3.12. Installing Jenkins as a Windows Service, I can't get a Jenkins Windows service to start because of our corporate firewall. I'​ve had no luck finding a resource to indicate what ports and  This instance can be stopped later by running docker container stop jenkins-docker and started again with docker container start jenkins-docker. See docker container for more container management commands. 4: Running Docker in Docker currently requires privileged access to function properly.


Cannot Start Jenkins Service due to Firewall, Open Console/Command line --> Go to your Jenkins installation directory. Execute the following commands respectively: To stop: jenkins.exe  Jenkins; JENKINS-44649; Cannot start Jenkins service after upgrade to V2.63. Not sure. Can I edit the jenkins.xml to look for the Java in a different path?