Consistency/Synchronization
The cache synchronizes by propagating update notifications to all clients listening on a region. These notifications occur any time the region changes. Specifically, they occur on a put (when an element already exists), clear, remove, or invalidate. This applies to different region types differently:
| • | Engines GridCache guarantees that all Engines receive all update notifications by the time they take the next task or Service request. |
| • | Drivers There are no synchronization guarantees for the Driver. The Driver receives notification messages the next time it performs a request, polls the server for results, or sends a heartbeat. |