Control ExecutorService to execute N tasks per second maximum

Question

How to control/limit the tasks that are submitted to a ExecutorService? I have SMSTask that sends SMS messages and I need to control the executor so that it can onl

Answer 1

Try RateLimiter from Guava. You must share one instance between all tasks running in the pool:

final RateLimiter rateLimiter = RateLimiter.create(N)

//and in your task:

rateLimiter.tryAcquire();
sendSms();

tryAcquire(); will block for the amount of time precisely to preserve N frequency.

See also:

• RateLimiter - discovering Google Guava