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changes.mady.by.user Colin McCabe

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changes.mady.by.user Viktor Somogyi

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Since we propagate the metadata via Raft, we will no longer need to send out LeaderAndIsrRequest, UpdateMetadataRequest, and StopReplicaRequest.  These requests will be sent out only when we're in legacy mode, not when we're in KIP-500 mode.  Eventually we will add some support for these requests to the new controller, in order to support rolling upgrade from a pre-KIP-500 release. However, for the purpose of this KIP, the new controller will not use these requests.

Since the publication of this KIP, upgrades from non-KRaft clusters has been implemented in KIP-866 ZooKeeper to KRaft Migration.

Obsoleting the Controlled Shutdown RPC

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