如何限制elasticsearch中的线程数

Question

I am newbie in Elastic Search. When I create the instance Client for the Elastic Search using java, it creates no of threads(around 16 threads). How I can put limit on number of threads created by Client? What will be the pros and cons of changing default settings?
I got some information from this link .

Answer 1

As you can see in the sources, the TransportClient you create to connect to a cluster uses a ThreadPool .

So it seems this settings also affect the client side.

This post may give you some insight of how the thread pool can affect your application performances: http://jontai.me/blog/2013/06/esrejectedexecutionexception-rejected-execution-of-messagechannelhandler-requesthandler/