有几种选项可以设置消息发送模式，优先级和存活时间值。
There are options to set message delivery mode, priority and time-to-live value.
通常不推荐使用JMS发送模式为非持久性的持续性事件，因为如果服务器重启仍然会丢失事件。
It is not generally recommended to use durable events with a JMS delivery mode of non-persistent, because events could still be lost if the server restarts.
采用了立即转发和完整转发两种转发模式，以及动态调整发送缓冲区水线的发送模式。
In the server design, applies two forwarding modes of partial packet and entire packet forwarding, and the dynamic water level of sending buffer.
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