CODEWITHSUNDEEP
javajettyexecutorserviceapplication-serverjetty-8
mani_nz
mani_nz

Reputation: 5622

Jetty Java EE ExecutorsService

I have web application created and running on Jetty. I have used the ExecutorService to create
a new Threadpool like this,

ExecutorService es = Executors.newFixedThreadPool(10);

But I heard creating your own thread pool in a application server is not advisable, and I must let the application server handle the threads.

So how can I do that in Jetty.

Pardon me I'm new to Jetty and Thanks in advance

Here is the program,

public class SampleExecutors {

    public SampleExecutors() {
        ExecutorService executors = Executors.newFixedThreadPool(10);
        Callable<List<Map<Record,String>>> text = new TextSearcher(domain, searchText);
        Future<List<Map<Record,String>>> submit = executors.submit(text);
        executors.shutdown();
    }
}

log.info("Active threads count:"+Thread.activeCount());

Here, after the created worker threads complete its task, I'm calling the executors.shutdown()

but still, if I do a Thread.activeThreads(), I can see the created threads.

So what happens is, as the instatiation is in the constructor and its not a singelton, for every time SampleExecutors is called, a new threadpool is created.

I dont want to make the Executors static or move it from the constructor, I want to know how to close or kill the created threads after they serve the task.

Upvotes: 1

Views: 1122

Answers (1)

zeller
zeller

Reputation: 4974

Afaik jetty is not an AS but a simple web server with a servlet container. Writing multithreaded code in a servlet container is ok.
Futher reading:
Difference between each instance of servlet and each thread of servlet in servlets?
http://balusc.blogspot.co.uk/2010/06/servlet-lifecycle-and-multithreading.html

Upvotes: 1

Related Questions