Jenkins “Poll SCM” the Nightmare for Performance

Tuesday, January 24, 2017

How many of us have ever used the "Poll SCM" option in our Jenkins jobs? It’s very easy to simply say to our job "hey can you please verify every X time my repository and trigger the job only in case there are any changes" At first glance it’s a simple, quick and harmless way. And the most important, it’s an easy method and works well. However, have we ever wondered what this represents for our server? What is the cost of this "comfort"? Probably not, what is sure is that every time that the server get slow we quickly complain and...
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