How do I find my Jenkins executors?

To check this,

1. Go to Jenkins > Manage Jenkins > Manage nodes.
2. Check if the master node is offline. It may report that the master node is out of disk space.
3. If not, then check the number of executors allocated, it is probably set to zero. Increase the number of executors and this will fix the problem.

How many executors can we have in Jenkins?

By default Jenkins has 2 executors. But you can increase the no of executors. You can follow the below given steps. Go to manage Jenkins.

What is node agent in Jenkins?

Node: A Pipeline performs most of the work in the context of one or more declared node steps. Agent: The agent directive specifies where the entire Pipeline, or a specific stage, will execute in the Jenkins environment depending on where the agent directive is placed.

What is a controller in Jenkins?

The Jenkins controller is the orignal node in the Jenkins installation. The Jenkins controller administers the Jenkins agents and orchestrates their work, including scheduling jobs on agents and monitoring agents. Agents may be connected to the Jenkins controller using either local or cloud computers.

What is label in Jenkins?

When creating a new slave node, Jenkins allows us to tag a slave node with a label. Labels represent a way of naming one or more slaves. We leverage this labeling system to tie the execution of a job directly to one or more slave nodes.

What is lockable resources in Jenkins?

ID: lockable-resources. This plugin allows defining lockable resources (such as printers, phones, computers, etc.) that can be used by builds. If a build requires a resource which is already locked, it will wait for the resource to be free.

What is agent in Jenkins pipeline?

agent. The agent section specifies where the entire Pipeline, or a specific stage, will execute in the Jenkins environment depending on where the agent section is placed. The section must be defined at the top-level inside the pipeline block, but stage-level usage is optional.

What is Jnlp in Jenkins?

JNLP(JAVA NETWORK LAUNCH PROTOCOL) is used to Connect to/launch your java application( here Jenkins) from a remote location.

What is Blue Ocean Jenkins?

“” Blue Ocean is a new user experience for Jenkins based on a personalizable, modern design that allows users to graphically create, visualize and diagnose Continuous Delivery (CD) Pipelines “”

What are the 3 types of pipelines in Jenkins?

• What is Jenkins Pipeline? Declarative versus Scripted Pipeline syntax.
• Why Pipeline?
• Pipeline concepts. Pipeline. Node. Stage. Step.
• Pipeline syntax overview. Declarative Pipeline fundamentals. Scripted Pipeline fundamentals.
• Pipeline example.

What is declarative pipeline in Jenkins?

Declarative pipeline is a relatively new feature that supports the pipeline as code concept. It makes the pipeline code easier to read and write. This code is written in a Jenkinsfile which can be checked into a source control management system such as Git.

What is milestone in Jenkins?

milestone : The milestone step forces all builds to go through in order. By default, Pipeline builds can run concurrently. The milestone step forces all builds to go through in order, so an older build will never be allowed pass a milestone (it is aborted) if a newer build already passed it.

What is the difference between executor Jenkins and orchestrator Jenkins?

The Executor Jenkins is an ordinary Jenkins with Shared Nodes cloud defined globally permitting it to lease, connect and utilize nodes from a shared pool. Such Jenkins can use static slaves or other clouds in the same time. The Orchestrator Jenkins is a dedicated instance to instrument the sharing.

How do I set the number of executors for a Jenkins agent?

You can find information on how to set the number of Jenkins executors for a given agent on the Remoting Best Practices page, section Number of executors. Using Operations Center is the most efficient approach to making the most use of your available executors (and node/agent resources as well).

How do I change the number of concurrent job executions in Jenkins?

Then click on ‘Configure System’ from the right hand side. In the Home directory, you will now see the new directory which has been configured. This refers to the total number of concurrent job executions that can take place on the Jenkins machine. This can be changed based on requirements.

How long does it take to run a Jenkins job?

We have a Jenkins server with 8 executors and 20 jobs. 15 of those jobs take approximately 2 hours to finish while the remaining 5 take only 15 minutes. I would like to reserve 1 executor (or 2) to run those 5 small jobs only and restrict other jobs to run on the other executors.