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Accepted
Aleks G
Asked: 2022-12-09 05:49:19 +0800 CST

Jenkins refuses to start - unknown argument --ajp13Port=-1

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My jenkins installation on Debian was upgraded (using apt) - and now jenkins refuses to start. I can see the following in the log:

Exception in thread "main" java.lang.IllegalArgumentException:
     Unrecognized option: --ajp13Port=-1

My jenkins version is 2.381. Unfortunately, I now don't know which version was installed prior to this, but it definitely worked and no config changes have been made.

How can I get it to start?

linux

2 Answers

  1. Best Answer

    I found the solution. File /etc/systemd/system/jenkins.service.d/override.conf contained the following line:

    Environment="JENKINS_OPTS=  --ajp13Port=-1"

    I commented this line - and the service started without an issue.

    Looks like the upgrade process (via apt) doesn't deal with the configuration overrides correctly.

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  2. Had the same message on Ubuntu 20.04.1 and Jenkins 2.375.1. It almost looks like the parameter isn't supported anymore. Removed it from /etc/default/jenkins and it started again.

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