Trickle messages are asynchronous and reliable. Trickle messages are conveyed in scheduler RPC messages, so they may not be delivered immediately after being generated.

• 触发消息是异步和可靠的。触发消息通过调度服务的远端过程调用(RPC)消息进行传递，因此它们可能不会在消息生成后立即就被发送。