| 摘要 |
The session-based server deployment can be comprised of an engine tier that is designed for high throughput processing of communications and a state tier that maintains state information for access by the engine tier. The engine tier can include a plurality of engine nodes that process incoming messages. The state nodes can contain call state, including various timers. When processing a call, an engine can set various timers in the state tier. The engine can then periodically poll the state tier for any timers that have expired. Upon expiration of a timer, the timer can be assigned to the corresponding engine node which handled previous communications for the call. This affinity between the timer and its respective engine can provide numerous benefits, such as reduced latency and more localized data access.
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