Java ThreadPoolExecutor limit queue size





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I am using threadpool to insert data to database. This is a secondary test database and once in a while the request to it start failing and the threadpool queue starts getting huge. I am trying to limit the queue size of the threadpool so that if there are any issues with the database it does not take over the memory of the application by filling up the queue. Note the queueSize below.



         threadpool = new ThreadPoolExecutor(corePoolSize, threadPoolSize, keepAliveTime, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(queueSize), new MyThreadFactory());


I did a little research and found that when the queue is full, the submit method throws RejectedExecutionException. Since I don't want to do anything more than the queue size and I don't care much about the test data I could safely ignore the request. So I am thinking, I could simply do something like this below.



        try {
threadPool.submit(task);
} catch (RejectedExecutionException ree){
//log the request was rejected and ignore the request
}


If I am fine ignoring the requests once the queue is full is this operation safe? I wanted to ask if it could create any other issues that I am not aware of? I read other similar posts but their requirement was different because they didn't have an option to simply ignore the request.



ThreadPoolExecutor Block When Queue Is Full?



How to make ThreadPoolExecutor's submit() method block if it is saturated?










share|improve this question


















  • 2





    If you want to safely ignore the request then you shoud add the last parameter - new ThreadPoolExecutor.DiscardPolicy()

    – Evgeniy Dorofeev
    Nov 23 '18 at 18:45


















0















I am using threadpool to insert data to database. This is a secondary test database and once in a while the request to it start failing and the threadpool queue starts getting huge. I am trying to limit the queue size of the threadpool so that if there are any issues with the database it does not take over the memory of the application by filling up the queue. Note the queueSize below.



         threadpool = new ThreadPoolExecutor(corePoolSize, threadPoolSize, keepAliveTime, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(queueSize), new MyThreadFactory());


I did a little research and found that when the queue is full, the submit method throws RejectedExecutionException. Since I don't want to do anything more than the queue size and I don't care much about the test data I could safely ignore the request. So I am thinking, I could simply do something like this below.



        try {
threadPool.submit(task);
} catch (RejectedExecutionException ree){
//log the request was rejected and ignore the request
}


If I am fine ignoring the requests once the queue is full is this operation safe? I wanted to ask if it could create any other issues that I am not aware of? I read other similar posts but their requirement was different because they didn't have an option to simply ignore the request.



ThreadPoolExecutor Block When Queue Is Full?



How to make ThreadPoolExecutor's submit() method block if it is saturated?










share|improve this question


















  • 2





    If you want to safely ignore the request then you shoud add the last parameter - new ThreadPoolExecutor.DiscardPolicy()

    – Evgeniy Dorofeev
    Nov 23 '18 at 18:45














0












0








0








I am using threadpool to insert data to database. This is a secondary test database and once in a while the request to it start failing and the threadpool queue starts getting huge. I am trying to limit the queue size of the threadpool so that if there are any issues with the database it does not take over the memory of the application by filling up the queue. Note the queueSize below.



         threadpool = new ThreadPoolExecutor(corePoolSize, threadPoolSize, keepAliveTime, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(queueSize), new MyThreadFactory());


I did a little research and found that when the queue is full, the submit method throws RejectedExecutionException. Since I don't want to do anything more than the queue size and I don't care much about the test data I could safely ignore the request. So I am thinking, I could simply do something like this below.



        try {
threadPool.submit(task);
} catch (RejectedExecutionException ree){
//log the request was rejected and ignore the request
}


If I am fine ignoring the requests once the queue is full is this operation safe? I wanted to ask if it could create any other issues that I am not aware of? I read other similar posts but their requirement was different because they didn't have an option to simply ignore the request.



ThreadPoolExecutor Block When Queue Is Full?



How to make ThreadPoolExecutor's submit() method block if it is saturated?










share|improve this question














I am using threadpool to insert data to database. This is a secondary test database and once in a while the request to it start failing and the threadpool queue starts getting huge. I am trying to limit the queue size of the threadpool so that if there are any issues with the database it does not take over the memory of the application by filling up the queue. Note the queueSize below.



         threadpool = new ThreadPoolExecutor(corePoolSize, threadPoolSize, keepAliveTime, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(queueSize), new MyThreadFactory());


I did a little research and found that when the queue is full, the submit method throws RejectedExecutionException. Since I don't want to do anything more than the queue size and I don't care much about the test data I could safely ignore the request. So I am thinking, I could simply do something like this below.



        try {
threadPool.submit(task);
} catch (RejectedExecutionException ree){
//log the request was rejected and ignore the request
}


If I am fine ignoring the requests once the queue is full is this operation safe? I wanted to ask if it could create any other issues that I am not aware of? I read other similar posts but their requirement was different because they didn't have an option to simply ignore the request.



ThreadPoolExecutor Block When Queue Is Full?



How to make ThreadPoolExecutor's submit() method block if it is saturated?







java multithreading concurrency executorservice threadpoolexecutor






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 23 '18 at 16:00









Doctor WhiteDoctor White

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  • 2





    If you want to safely ignore the request then you shoud add the last parameter - new ThreadPoolExecutor.DiscardPolicy()

    – Evgeniy Dorofeev
    Nov 23 '18 at 18:45














  • 2





    If you want to safely ignore the request then you shoud add the last parameter - new ThreadPoolExecutor.DiscardPolicy()

    – Evgeniy Dorofeev
    Nov 23 '18 at 18:45








2




2





If you want to safely ignore the request then you shoud add the last parameter - new ThreadPoolExecutor.DiscardPolicy()

– Evgeniy Dorofeev
Nov 23 '18 at 18:45





If you want to safely ignore the request then you shoud add the last parameter - new ThreadPoolExecutor.DiscardPolicy()

– Evgeniy Dorofeev
Nov 23 '18 at 18:45












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