AbstractTransactionalMessageCheckListener.excuetor
master1 | java.util.concurrent.RejectedExecutionException: Task org.apache.rocketmq.broker.transaction.AbstractTransactionalMessageCheckListener$2@1e179a79 rejected from java.util.concurrent.ThreadPoolExecutor@bb1ccc7[Running, pool size = 5, active threads = 4, queued tasks = 2000, completed tasks = 30247] master1 | at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063) master1 | at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830) master1 | at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1379) master1 | at org.apache.rocketmq.broker.transaction.AbstractTransactionalMessageCheckListener.resolveHalfMsg(AbstractTransactionalMessageCheckListener.java:80) master1 | at org.apache.rocketmq.broker.transaction.queue.TransactionalMessageServiceImpl.check(TransactionalMessageServiceImpl.java:223) master1 | at org.apache.rocketmq.broker.transaction.TransactionalMessageCheckService.onWaitEnd(TransactionalMessageCheckService.java:55) master1 | at org.apache.rocketmq.common.ServiceThread.waitForRunning(ServiceThread.java:144) master1 | at org.apache.rocketmq.broker.transaction.TransactionalMessageCheckService.run(TransactionalMessageCheckService.java:44) master1 | at java.lang.Thread.run(Thread.java:748)
由于ExcuetorService（在AbstractTransactionalMessageCheckListener中创建）的队列已满：
private static ExecutorService executorService = new ThreadPoolExecutor(2, 5, 100, TimeUnit.SECONDS, new ArrayBlockingQueue(2000), new ThreadFactory() { @Override public Thread newThread(Runnable r) { Thread thread = new Thread(r); thread.setName("Transaction-msg-check-thread"); return thread; } });
当异常发生时，TransactionalMessageServiceImpl.check的newOffset没有更新为ConsumeQueue，因此会发生大量重复检查。
原提问者GitHub用户areyouok
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