executorservice Questions
4
Solved
I have a scenario where I have to execute 5 thread asynchronously for the same callable. As far as I understand, there are two options:
1) using submit(Callable)
ExecutorService executorService =...
Englut asked 23/12, 2015 at 17:10
5
Solved
I have the following Java code:
final Future future = exeService.submit(
new Runnable() {
public void run() {
myObject.doSomething();
}
}
);
future.get();
where exeService is an instance o...
Nipha asked 6/4, 2010 at 15:12
5
Solved
Ok, so I know the first answer / comment here will be "use one ExecutorService and use invokeAll". However, there is a good reason (which I will not bore people with) for us keeping the thread pool...
Flavory asked 1/11, 2012 at 18:55
11
I am trying to execute lots of tasks using a ThreadPoolExecutor. Below is a hypothetical example:
def workQueue = new ArrayBlockingQueue<Runnable>(3, false)
def threadPoolExecutor = new Thre...
Surra asked 10/8, 2010 at 4:24
11
How to unit test a code that is running in executor service?
In my situation,
public void test() {
Runnable R = new Runnable() {
@Override
public void run() {
executeTask1();
executeTask2();
...
Incomparable asked 24/9, 2017 at 18:54
2
Solved
I have just upgraded our Spring Boot applications to Java 21. As a part of that, I have also done changes to use virtual threads. Both when serving API requests and when doing async operations inte...
Ablation asked 26/2 at 12:51
21
Solved
Let's say I have an application that utilizes the Executor framework as such
Executors.newSingleThreadExecutor().submit(new Runnable(){
@Override
public void run(){
// do stuff
}
}
When I ru...
Overmatch asked 24/5, 2011 at 16:33
2
Solved
Motivation:
Trying to migrate Virtual Threads.
Problem:
Even though Virtual Threads are cheap, OS may find it suspicious for some processes to be stacked up at the same time, like searching for IP ...
Mcadams asked 4/2 at 21:46
3
Solved
In a utility library i am creating a ExecutorService
ExecutorService es = Executors.newSingleThreadExecutor();
The main thread will then post some tasks to this ExecutorService. When the main-th...
Spontaneity asked 23/11, 2013 at 13:55
17
What is the simplest way to to wait for all tasks of ExecutorService to finish? My task is primarily computational, so I just want to run a large number of jobs - one on each core. Right now my set...
Darvon asked 16/7, 2010 at 23:12
5
Solved
I have a command line application that uses a Spring-managed bean that's composed of a java ExecutorService created with:
ExecutorService service = Executors.newFixedThreadPool(4);
Now, I want m...
Horseleech asked 29/8, 2013 at 16:19
2
We've recently started using coroutines on our Android application. All's gone fine and dandy, until someone wrote something roughly equivalent to the following function:
fun example(dispatcher: C...
Mutualize asked 11/4, 2018 at 22:26
10
Solved
What is the difference between
ExecutorService eService = Executors.newFixedThreadPool(2);
eService.execute(new TestThread6());
eService.execute(new TestThread6());
eService.execute(new TestThread...
Postage asked 25/8, 2013 at 2:17
6
I was reading about it quite a bit in the past couple of hours, and I simply cannot see any reason (valid reason) to call shutdown() on the ExecutorService, unless we have a humongous application t...
Franck asked 20/4, 2013 at 17:9
2
Solved
I need to unit-test some functionality that works across threads, for which I need to guarantee that two jobs are run on different threads.
Using Executors.newCachedThreadPool() introduces a race...
Accounting asked 6/7, 2017 at 13:32
9
Solved
I am learning to use ExectorService to pool threads and send out tasks. I have a simple program below
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import jav...
Nausea asked 10/9, 2013 at 23:22
3
Solved
I am going through different concurrency model in multi-threading environment (http://tutorials.jenkov.com/java-concurrency/concurrency-models.html)
The article highlights about three concurrency m...
Johnathan asked 25/7, 2015 at 14:24
11
Solved
I'm trying to figure out how to correctly use Java's Executors. I realize submitting tasks to an ExecutorService has its own overhead. However, I'm surprised to see it is as high as it is.
My prog...
Lumberman asked 30/10, 2009 at 4:17
4
Solved
I've a web application using the spring(4.2.x) artifacts spring-webmvc, spring-messaging, spring-websocket
I've the below @Enable* annotations in my spring config java class
@EnableWebMvc
@Enable...
Presbyterate asked 4/8, 2015 at 18:13
3
Solved
I'v got ConcurrentLinkedDeque which I'm using for synchronic push/pop elements,
and I'v got some async tasks which are taking one element from stack and if this element has neighbors It's pushing ...
Coddle asked 21/11, 2015 at 15:53
13
Solved
I'm trying to use Java's ThreadPoolExecutor class to run a large number of heavy weight tasks with a fixed number of threads. Each of the tasks has many places during which it may fail due to excep...
Bemoan asked 11/2, 2010 at 22:9
3
Whenever I call shutdownNow() or shutdown() it doesn't shut down. I read of a few threads where it said that shutting down is not guaranteed - can someone provide me a good way of doing it?
Mokas asked 8/5, 2012 at 18:17
8
Solved
Summary of what I want to achieve:
I want to execute N tasks in parallel such that no individual task should run for more than two seconds (we can mark such tasks as failed). As an output I want to...
Dona asked 2/3, 2022 at 11:58
1
Currently I'm using an Executors.newSingleThreadScheduledExecutor() to schedule a task periodically. The ScheduledExecutorService provides two options for this, namely:
ScheduledExecutorService#sc...
Soraya asked 1/4, 2022 at 19:37
6
The service I'm working on uses a Future to run multiple tasks in parallel; each task can take up to a minute to complete. However, it seems the external lib is buggy, since in some occasions (2% o...
Alkalosis asked 12/3, 2022 at 16:43
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