public synchronized void requestRejoin(final String shortReason,
                                           final String fullReason) {
        log.info("Request joining group due to: {}", fullReason);
        this.rejoinReason = shortReason;
        this.rejoinNeeded = true;
    }
Request to rejoin the group.

@param shortReason This is the reason passed up to the group coordinator. It must be
                   reasonably small.
@param fullReason This is the reason logged locally.
clients/src/main/java/org/apache/kafka/clients/consumer/internals/AbstractCoordinator.java