Singlestore multi node architecture components: Cluster: Cluster contains aggregator nodes and leaf nodes. Cluster is made of all nodes on which Singlestore DB is installed. Master Aggregator: Cluster contains one master aggregator, aggregator responsible for cluster monitoring and failover. Master aggregator process DDL, DML, Failover, Reference Tables, CML Child Aggregator: Cluster may have zero or more child aggregator, all it depends on query volume. The child aggregator process DML, and help master aggregator to reduce the load. Leaf: Cluster could have many leaves. The leaf node stores subset of data set. It could be a part of availability group when high availability is configured. Availability Group: It is a group of leaves - leaf nodes, stores redundant data. The purpose of availability group is to deliver high availability in case of leaf node failure. Redundancy is configurable via redundancy level. Master Partition: Data partiti...
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