public void unRegister(final String consumerGroup) {
        for (Entry<String, FilterDataMapByTopic> entry : filterDataByTopic.entrySet()) {
            entry.getValue().unRegister(consumerGroup);
        }
    }
@Test
    public void testUnregister() {
        ConsumerFilterManager filterManager = gen(10, 10);

        ConsumerFilterData filterData = filterManager.get("topic9", "CID_9");

        assertThat(filterData).isNotNull();
        assertThat(filterData.isDead()).isFalse();

        filterManager.unRegister("CID_9");

        assertThat(filterData.isDead()).isTrue();
    }