CellInfo contains information about a cell. CellInfo objects are
stored in the global topology server, and describe how to reach
local topology servers.
CellsAlias
ExternalClusters
KeyRange describes a range of sharding keys, when range-based
sharding is used.
A Keyspace contains data about a keyspace.
A Shard contains data about a subset of the data whithin a keyspace.
ShardReference is used as a pointer from a SrvKeyspace to a Shard
ShardReplication describes the MySQL replication relationships
whithin a cell.
ShardReplicationError describes the error being fixed by
ShardReplicationFix.
ShardTabletControl is used as a pointer from a SrvKeyspace to a Shard
SrvKeyspace is a rollup node for the keyspace itself.
Tablet represents information about a running instance of vttablet.
TabletAlias is a globally unique tablet identifier.
ThrottledAppRule defines an app-specific throttling rule, with expiration.