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          IgniteUuid reqId; // Unique id of custom discovery message

}

Coordinator change

All server nodes handle requests of service’s state changes and put it into deployment queue, but only coordinator process themthe coordinator aggregates single maps messages received from nodes and builds a full map to finish exchange. If coordinator left or fail they will be processed on a new coordinatorduring deployment exchange another server node will become the coordinator and continue the process.

Topology change

Each topology change (NODE_JOIN/LEFT/FAILED event) causes service's states deployment task. Assignments will be recalculated and applied for each deployed service.

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