java - ThreadPoolExecutor 拒绝错误

Question

下面的错误是什么意思？我怎样才能恢复它？

Exception in thread "UserActionProcessor-8811" java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@56624074 rejected from java.util.concurrent.ThreadPoolExecutor@5fd03556[Running, pool size = 300, active threads = 300, queued tasks = 2000, completed tasks = 7979]
        at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2048)
        at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:821)
        at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1372)
        at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:110)

Answer 1

这意味着线程池正忙并且队列也已满。然后该任务将被拒绝。我认为如果您不希望任何任务被拒绝，您应该实现拒绝策略。