Network latency

In the admin user interface, you have a page that shows network latencies within the cluster. It has information about the round-trip latencies between each pair of nodes in the cluster as shown in the following screenshot.

Figure 10.1 – Network latency page in the admin user interface

Network latency plays an important role when you are deciding on your replication strategy and topology patterns. Please refer to Chapter 4, Geo-Partitioning, to go over all the topology patterns available in CockroachDB. Based on the criticality of the data, you also have to decide whether you can tolerate zonal or regional failures.

Also, even before you decide the region and availability zone for CockroachDB nodes, it would be good to go through inter-region network latencies for different cloud providers. If you are planning to have your CockroachDB cluster span across multiple cloud providers, you may want to choose the same region for your second...