ExecutorService, standard way to avoid to task queue getting too full

Question

I am using ExecutorService for ease of concurrent multithreaded program. Take following code:

while(xxx) {
    ExecutorService exService = Executors         


        

Answer 1

You're better off creating the ThreadPoolExecutor yourself (which is what Executors.newXXX() does anyway).

In the constructor, you can pass in a BlockingQueue for the Executor to use as its task queue. If you pass in a size constrained BlockingQueue (like LinkedBlockingQueue), it should achieve the effect you want.

ExecutorService exService = new ThreadPoolExecutor(NUMBER_THREADS, NUMBER_THREADS, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue(workQueueSize));