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- an
UNSUPPORTED_VERSIONerror if the cluster's MetadataVersion does not supportUnregisterControllerRecord - a
CONTROLLER_ID_NOT_REGISTEREDerror if no registration exists for the requested controller ID. This is similar to theBROKER_ID_NOT_REGISTEREDerror in the case of brokers. - a
NOT_CONTROLLERerror if the request does not arrive at the active controller - a an
INVALID_REQUESTerror if the request arrives at the active controller. This is known to be a "mistaken" request, as it is expected controllers are not running when they are unregistered. See the User Experience for more details.
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