October 2019
Intermediate to advanced
520 pages
13h 5m
English
Content preview from Professional Cloud Architect – Google Cloud Certification Guide
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Clusters
A Bigtable cluster represents the service. Each cluster belongs to a single Bigtable instance, and, as we've already mentioned, each instance can have up to four clusters. When our applications send a request to an instance, it is handled by one of the clusters in the instance. Each cluster is located in a single zone, and an instance's clusters must be in unique zones. If our configuration means that we have more than one cluster, then Bigtable will automatically start to replicate our data by storing copies of the data in each of the cluster's zones and synchronizing updates between the copies. In order to isolate different types of traffic from each other, we can select which cluster we want our application to connect to.
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