Java将任务计划为一次执行

Question

I need to execute a task in the future, just once. Requirements: - The environment is clustered, so need to take care of competition in the moment that the task gets fired, it cannot execute twice; - The task can be scheduled a month ahead and cannot be just scheduled in memory as soon as the node can be restarted or even destroyed at a certain moments (it's an Amazon Elastick Beanstalk environment);

Any suggestions will be welcome.

Answer 1

一个想法：您可以尝试在所有节点上安排任务，而不是尝试使cron / timer工具仅执行一次，而是在节点之间使用某种协调方式来确定哪个节点将实际执行任务。