Heng Du

As interface shows below： ``` /** * * Send batch messages to server. * * @param messages messages to be sent. */ void send(List messages); ``` This API can lead...

OpenConnect需要暴露一些metrics数据，大家可以在此一起梳理下需要对外暴露的指标。

Message order needs to be guaranteed

feat(trace)adapted to support RocketMQ native client

Added compatibility with not enable ACL model in server, fix the [issue](https://github.com/apache/rocketmq-ons/issues/10)

OpenMessaging is a cloud native, vendor-neutral open specification for distributed messaging, and If the RocketMQ client can support OpenMessaging, this will be very exciting.

Now, ONS will enable ACL check by default, which will cause a lot of trouble for many users who do not need to open ACL, so I hope to be...