thread pool task executor ,,,what is the maximum pool size, core pool size can be defined in java

Question

what is the maximum corepoolsize,maxpoolsize ,queuecapacity can we allocate in java spring boot framework.i am working n corporate which in need to handle more thread requests. i have to increase thread performance.The existing one is with default values.

public Executor asyncExecutor() {
    ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
    executor.setCorePoolSize(corePoolSize);
    executor.setMaxPoolSize(maxPoolSize);
    executor.setQueueCapacity(queueCapacity);
    return executor;
}

Answer 1

核心池大小默认配置为1，最大池大小和队列容量为2147483647。

Answer 2

according to the documents:

If running threads are more than corePoolSize but less than maximumPoolSize, a new thread will be created only if the queue is full

.

take a look at this issue and I think you can find a proper answer here!

[https://stackoverflow.com/questions/17659510/core-pool-size-vs-maximum-pool-size-in-threadpoolexecutor][1]