java - 线程池中出现任务拒绝错误

Question

即使成功完成任务，我仍然不断收到任务拒绝错误。

2018-03-27 05:57:37,518 454935266 [task-scheduler-5] ERROR o.s.i.handler.LoggingHandler - org.springframework.core.task.TaskRejectedException: Executor [java.util.concurrent.ThreadPoolExecutor@75a34d52[Running, pool size = 1, active threads = 0, queued tasks = 1000, completed tasks = 490575051]] did not accept task: org.springframework.integration.util.ErrorHandlingTaskExecutor$1@55cd80f5

此作业只是在目录中查找新条目，一旦获取就会对其进行处理。另外我不知道为什么它显示排队任务为 1000，因为没有生成那么多文件。

Answer 1

增加您的queueCapacity，例如:

ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(4);
executor.setMaxPoolSize(6);
executor.setQueueCapacity(5000); // <-- setting the queueCapacity