SingleStore has several internal or "System" databases (views):
cluster: Stores cluster-level metadata that is replicated to all nodes in the cluster.
This includes information about nodes host/ports etc. and information about databases and database partitions). Cluster replicas (named something like:
cluster_) are created during DR (disaster recovery) cluster-to-cluster replication.
schema A large set of system tables containing metadata about clusters and all the components within them.
memsql: Stores metadata local to a given node, including which local databases exist, which local users exist, etc.
information., these databases are not intended for users.
Last modified: July 12, 2022