Implementing integration plugins in RocketMQ for HBase and Beam

This proposal aims at designing, implementing and evaluating plugins that integrate RocketMQ with both the HBase data store and the Beam data processing model. These integration plugins will improve RocketMQ offline storage capabilities and benefit users with stringent large-scale and data-intensive processing needs. End results of this proposal include HBase and Beam plugin implementations, as well as exhaustive unit tests, application examples and documentation.