In this chapter, you will be introduced to a brand new technology called BDR. Bidirectional Replication (BDR), is definitely one of the rising stars in the world of PostgreSQL. A lot of new stuff will be seen in this area in the very near future, and people can expect a thriving project.
This chapter will be about these topics:
Understanding the BDR replication concepts
Installing BDR
Setting up a simple cluster
Modifying the cluster and failover
Understanding BDR's performance
Before digging into all the technical details, it is important to understand the fundamental technical aspects of BDR.