Why is Jenkins so slow?

Asked By: Celinda Linzoain | Last Updated: 15th January, 2020
Category: technology and computing browsers
4.8/5 (105 Views . 36 Votes)
If adding more heap does not fix your problem, then you need to dig deeper. There's a plethora of possible root causes for a slow master -- from JVM memory and garbage collection settings to plugin issues, on top of the usual CPU/disk/IO-dimensioning issues.

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Furthermore, how can I make Jenkins faster?

To speed up Jenkins builds you need to:

  1. Create snapshot for the Library folder.
  2. Create slave build container and use the created snapshot volume as slave Jenkins workspace.
  3. Git clone the project and checkout the particular feature branch.
  4. Run the build process.

Additionally, how much memory does Jenkins need? The amount of memory Jenkins needs is largely dependent on many factors, which is why the RAM allotted for it can range from 200 MB for a small installation to 70+ GB for a single and massive Jenkins master. However, you should be able to estimate the RAM required based on your project build needs.

Regarding this, how do I clear Jenkins build history?

2 Answers. Delete a Jenkins build via GUI. Go into the build you want to delete, and click the Delete this build button in the upper right corner. If you need to clean the Jenkins build history, and reset the build number back to 1, you can run a simple script in Jenkins Script Console.

Where is Jenkins config file?

6 Answers. Jenkins stores the configuration for each job within an eponymous directory in jobs/ . The job configuration file is config. xml , the builds are stored in builds/ , and the working directory is workspace/ .

34 Related Question Answers Found

How many types of builds in Jenkins?

Jenkins supports several different types of build jobs. The two most commonly-used are the freestyle builds and the Maven 2/3 builds. The freestyle projects allow you to configure just about any sort of build job: they are highly flexible and very configurable.

How many builds you store in your Jenkins?

2 Answers. The UI is limited to 30 builds. Try accessing older builds via the url with the build number, f.e. By default Jenkins keeps all builds in its disk and its advised that you use build discard to remove older builds to save disk space.

Is Jenkins fully secure?

In the default configuration of Jenkins 1. x, Jenkins does not perform any security checks. This means the ability of Jenkins to launch processes and access local files are available to anyone who can access Jenkins web UI and some more. Securing Jenkins has two aspects to it.

What is master in Jenkins?

Jenkins Master and Slave Architecture
The Jenkins master acts to schedule the jobs and assign slaves and send builds to slaves to execute the jobs. It will also monitor the slave state (offline or online) and getting back the build result responses from slaves and the display build results on the console output.

How do I manually start Jenkins?

Go to the Jenkins installation, open the cmd and run:
  1. To stop: jenkins.exe stop.
  2. To start: jenkins.exe start.
  3. To restart: jenkins.exe restart.

What is unity build in Jenkins?

Unity Build Automation with Jenkins. This article on Unity Build Automation is one option to automate the process of creating, packaging, and distributing builds for multiple platforms. Another option is to use a build automation server to monitor a source control branch and kick off new builds in response to a change.

How does Jenkins work?

Jenkins is an open source automation tool written in Java with plugins built for Continuous Integration purpose. Jenkins is used to build and test your software projects continuously making it easier for developers to integrate changes to the project, and making it easier for users to obtain a fresh build.

What is a Jenkins job?

A Jenkins project is a repeatable build job which contains steps and post-build actions. The types of actions you can perform in a build step or post-build action are quite limited. They allow you to configure build triggers and offers project-based security for your Jenkins project.

Where is Jenkins build history stored?

Jenkins stores the configuration for each job within an eponymous directory in jobs/ . The job configuration file is config. xml , the builds are stored in builds/ , and the working directory is workspace/ . See the Jenkins documentation for a visual representation and further details.

How do I clean up Jenkins?

There is a way to cleanup workspace in Jenkins. You can clean up the workspace before build or after build. First, install Workspace Cleanup Plugin. To clean up the workspace before build: Under Build Environment, check the box that says Delete workspace before build starts.

How do I free up space on Jenkins?

Procedures Projects can take to clean up disk space
  1. Use a ./tmp dir in your jobs workspace.
  2. Configure your jobs to wipe workspaces on start or finish.
  3. Configure your jobs to only keep 5 or 10 previous builds.
  4. Configure your jobs to only keep 5 or 10 previous artifacts.

How do I change my workspace in Jenkins?

Navigate to Jenkins->Manage Jenkins->Configure System and click on the Advanced Button on the right hand side. Now you can change your workspace and build directory to any other location on your machine.

What does Discard old builds in Jenkins do?

Discard Old Build is a Jenkins plugin that allows for setting build discard conditions with greater specificity than is available in the Jenkin's core function.

How do I change the build number of Jenkins?

If you want to change build number via nextBuildNumber file you should "Reload Configuration from Disk" from "Manage Jenkins" page. there is a file named nextBuildNumber .

How do I remove an artifact from Jenkins?

1 Answer. The artifacts for a build by default are located in: [JENKINS_HOME]/jobs/[job_name]/builds/[$BUILD_ID]/archive/ , go there and delete it. It won't delete the link to the artifact from the build page, though.

How do I check my Jenkins disk space?

You can see project list with occupied disk space by going to the "Disk Usage" page in the management section (Dashboard -> "Manage Jenkins" -> "Disk Usage").

What is the max heap size for 64 bit JVM?

So theoretical limit for maximum heap size on 32 bit JVM is 4GB and for 64 bit JVM its 2^64.

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