KIP-304 — Connect runtime mode improvements for container platforms

Discussion Connect

Proposes a new Connect runtime mode where each connector runs in its own isolated worker process, eliminating cross-connector interference from rebalances, crashes, and JAR conflicts in the current shared distributed mode. In distributed mode, deploying or crashing one connector triggers a full rebalance affecting all other connectors on all workers, introducing unpredictable latency spikes in unrelated pipelines.

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