What is slave in Jenkins?
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What is slave in Jenkins?
Jenkins Slave. A slave is a Java executable that runs on a remote machine. The characteristics of the slave are : It hears requests from the Jenkins Master instance. Slaves can run on a variety of operating systems.
What does master-slave do?
Master/slave is a model of asymmetric communication or control where one device or process (the “master”) controls one or more other devices or processes (the “slaves”) and serves as their communication hub.
How does master and slave nodes communicate in Jenkins?
Jenkins uses a Master-Slave architecture to manage distributed builds. In this architecture, Master and Slave nodes communicate through TCP/IP protocol. The main Jenkins server acts as the Master node that manages slaves. A slave is a Java executable that runs on a remote machine.
How do I run Jenkins from master and slave?
Steps to Configure Jenkins Master and Slave Nodes
- Click on Manage Jenkins in the left corner on the Jenkins dashboard.
- Click on Manage Nodes.
- Select New Node and enter the name of the node in the Node Name field.
- Select Permanent Agent and click the OK button.
- Enter the required information.
What is master Jenkins?
Jenkins Master. The Jenkins master is in charge of scheduling the jobs, assigning slaves, and sending builds to slaves to execute the jobs. It’ll also keep track of the slave state (offline or online) and retrieve the build result responses from slaves and display them on the console output.
What is master slave configuration in Jenkins?
Jenkins is an awesome Continuous Integration tool which allows you to add multiple slaves as per your project requirement to a central Master server. In distributed environment, we need different machines for different purposes.
What is master-slave configuration in Jenkins?
What is master-slave in DB?
Master-slave replication enables data from one database server (the master) to be replicated to one or more other database servers (the slaves). The master logs the updates, which then ripple through to the slaves. If the changes are made to the master and slave at the same time, it is synchronous.
Can a master and slave reside on the same machine in Jenkins?
1 Answer. Your jenkins master node can run builds and works as an slave too.
Can Jenkins execute jobs without slaves?
You can do this by setting the executor count to zero. If you need some jobs to run on the master (e.g. backups of Jenkins itself), use the Job Restrictions Plugin to limit which jobs can be executed there.
Can Jenkins slave have multiple masters?
3 Answers. As you’ve noted it’s not hard to share slaves between masters, just setup multiple workspaces and each master will install it’s own slave jar.
What is the difference between master and slave?
Simply, a master is a device or a process that controls other devices or processes and a slave is a device or a process that is controlled by another device or a process.