Major Description
Apache HBase is the Hadoop database, a distributed, scalable, big data store. RocketMQ as a messaging system only supports short time of online storage, so needs a plugin to connect habse and has the ability of offline storage.
The rocketmq-mysql[1] plugin can be a reference, in short, we need sink and source connectors to send and pull data from hbase.
[1]. https://github.com/apache/rocketmq-externals/tree/master/rocketmq-mysql