Github user Jaskey commented on a diff in the pull request: https://github.com/apache/incubator-rocketmq/pull/115#discussion_r121039751 --- Diff: client/src/main/java/org/apache/rocketmq/client/impl/factory/MQClientInstance.java --- @@ -621,34 +621,23 @@ public boolean updateTopicRouteInfoFromNameServer(final String topic, boolean is { TopicPublishInfo publishInfo = topicRouteData2TopicPublishInfo(topic, topicRouteData); publishInfo.setHaveTopicRouterInfo(true); - Iterator<Entry<String, MQProducerInner>> it = this.producerTable.entrySet().iterator(); - while (it.hasNext()) { - Entry<String, MQProducerInner> entry = it.next(); - MQProducerInner impl = entry.getValue(); - if (impl != null) { - impl.updateTopicPublishInfo(topic, publishInfo); - } - } + updatePubInfoTable(topic, publishInfo); } // Update sub info { Set<MessageQueue> subscribeInfo = topicRouteData2TopicSubscribeInfo(topic, topicRouteData); - Iterator<Entry<String, MQConsumerInner>> it = this.consumerTable.entrySet().iterator(); - while (it.hasNext()) { - Entry<String, MQConsumerInner> entry = it.next(); - MQConsumerInner impl = entry.getValue(); - if (impl != null) { - impl.updateTopicSubscribeInfo(topic, subscribeInfo); - } - } + updateSubInfoTable(topic, subscribeInfo); } log.info("topicRouteTable.put. Topic = {}, TopicRouteData[{}]", topic, cloneTopicRouteData); this.topicRouteTable.put(topic, cloneTopicRouteData); return true; } } else { - log.warn("updateTopicRouteInfoFromNameServer, getTopicRouteInfoFromNameServer return null, Topic: {}", topic); + log.warn("updateTopicRouteInfoFromNameServer, getTopicRouteInfoFromNameServer return null. Topic: {}", topic); --- End diff -- It seems you are right, this design is confusing , maybe we change the logic into returns null?
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