Each multiplex configuration has one and only one coordinator node that is capable of read-only and read-write operations and is also responsible for bookkeeping to manage other nodes.
When you convert an existing simplex server to multiplex, it becomes the coordinator node.
Runs read-only and read-write operations against shared IQ objects.
Manages IQ main dbspaces.
Manipulates local data in SQL Anywhere system and user tables.
Shared IQ table locking
Shared IQ storage management
Providing global transaction IDs for read-write transactions involving shared IQ objects
Maintaining the global catalog
Controls catalog synchronization for secondary servers
Performs schema changes on shared IQ store objects
Performs schema changes on SQL Anywhere store objects
Maintains and cleans up object versions