public Mono<Member> electNewLeaderByNodeId(String nodeId) {
        Member member = allKnownMembers.get(nodeId);
        if (member == null) {
            return Mono.error(
                    ResponseException.get(ResponseStatusCode.NONEXISTENT_MEMBER_TO_BE_LEADER));
        }
        return electNewLeaderByMember(member);
    }
@implNote Even a member with a lower priority is qualified to be a leader
turms-server-common/src/main/java/im/turms/server/common/infra/cluster/service/discovery/DiscoveryService.java