Site Independent (Non-Replicated) Data and Configuration
Site Independent (Non-Replicated) Data and Configuration
All database information is replicated between sites except the following:
URL/URN mappings
Meta-data about the site, such as communication details, database name, scheduled maintenance
Data from the
AeLock
table, which is a local lock table
Engine monitoring for engines in each site’s cluster
Also, starting and stopping a server is confined to one server only.
For process scheduling, a single node is designated from all known sites to be responsible for scheduling. Schedule changes are broadcast between sites so that the scheduler stays in sync with schedule changes made on other sites.