public boolean isConsumeGroupEmpty(String groupName) {
        if (groupName == null) {
            return true;
        }
        ConsumeGroupInfo consumeGroupInfo = groupInfoMap.get(groupName);
        return (consumeGroupInfo == null || consumeGroupInfo.isGroupEmpty());
    }
Judge whether the consumer group is empty

@param groupName group name
@return true: empty, false: not empty
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/master/nodemanage/nodeconsumer/ConsumerInfoHolder.java