Jenkins not starting in Ubuntu

Question

I have installed jenkins, it was working fine for a while, builds were working fine.

Suddenly it stopped working. There is nothing in logs

I tried restarting it, no error came up in logs, but still it's not running

root@localhost:/home/nilesh# service jenkins restart
 * Restarting Jenkins Continuous Integration Server jenkins [ OK ] 

root@localhost:/home/nilesh# service jenkins status
Jenkins Continuous Integration Server is not running

Any idea why it's not running ? The machine has 2 GB RAM.

Solution

Finally figured it out. I ran the command manually to run jenkins

/usr/bin/java -Djava.awt.headless=true -jar /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080 --ajp13Port=-1
Running from: /usr/share/jenkins/jenkins.war
Exception in thread "main" java.io.IOException: No space left on device

and it showed No space left on device. Apparently daemon script should have add this error in jenkins logs, but it was showing No error.

Comments

[user9517]

What do the relevant logs say ? If you can't see anything try increasing the jenkins log verbosity too.

[NIlesh Sharma]

Only yesterday logs are showing, when jenkins was running, besides restart command says OK, it should have shown some error, Even in syslog nothing is there related to jenkins failure

[user9517]

Without logs or other relevant info we can only guess. I guess cosmic rays. More seriously, you need to check the jenkins logging options, increase the verbosity and come back with some relevant info.

[Mr AJ]

I ran this command and it reinstalled the Jenkins and I lost all earlier setup. Any way to just restart the service without reinstalling it

[Ring]

This recently happened to me and I found the culprit: my server was hacked and is now mining bitcoins! Check top to see if any mysterious processes are consuming 99% of the processor.

[Sandburg]

Is it a good answer to your question? Didn't you ask to run it at startup? Which means runlevel and init.d ...

[Dody]

be careful, this approach re-install Jenkins.