Jenkins is one of the important CI tools which many organization used as part of their Build and DevOps infrastructure. I am going to consolidate all the troubleshooting techniques which can be used in order to find any issues related in Jenkins.
Step 1. Take a look at Log generated by the Jenkins and plugins via http://jenkins-master/log
Note: Here you can also create your own logger and and set your custom log levels such as (severe, warning, info, config, file, finer, finest, all)
Step 2. Also, you can look at /var/log/jenkins/jenkins.log via doing "tail -f /var/log/jenkins/jenkins.log" and check carefully whats breaking it.
Log file in windows - jenkins.err.log & jenkins.out.log Read More Click here
Reference:- This article was originally posted on scmGalaxy.com
This article offers practical guidance on tackling common Jenkins issues, which is incredibly valuable because real-world CI/CD environments rarely run perfectly all the time. Troubleshooting Jenkins — whether it’s build failures, plugins conflicts, or performance bottlenecks — isn’t just about fixing errors but understanding how the pipeline, agents, and configuration interact. Insights like these help both beginners and experienced users deepen their operational knowledge, reduce downtime, and keep automated workflows running smoothly. For anyone relying on Jenkins as the backbone of their deployment process, developing effective troubleshooting skills is essential to maintaining reliable and efficient delivery pipelines.
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