Before doing jenkins master slave setup we should aware why we should go for jenkins slave and what are those need that is pushing us to use jenkins slave. If I will explain jenkins slave, then this is nothing it’s only way to distribute the load of jenkins master server. Let’s take a practical scenario if we are running or building 4 to 5 jobs on jenkins master server and these jobs are utilizing our master server all resources so we cannot run any other jobs parallel as well our jobs will take more time.