24-3: NodeBroker: use deltas when returning recently added nodes #9161
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Changelog entry
NodeBroker now sends deltas when listing recently added nodes.
Changelog category
Additional information
This fixes one of the issues where a blue-green deploy is stalled in big clusters due to cached node lists becoming invalidated with each new added node and excessive traffic when it is repeatedly resent to all nodes in the cluster. With a minor backwards compatible change to TEvListNodes it becomes possible to only send recently added nodes.
Related to #8942.