Rocketmq: What circumstances will messages not be consumed or delay consumed?

[VAEAZE]

I have more than five hundred topic in one cluster with six nodes, I create the topic like this :

./mqadmin updateTopic -c MyCluster -n 192.168.1.100:9876 -r 16 -w 16 -t topic1;
./mqadmin updateTopic -c MyCluster -n 192.168.1.100:9876 -r 16 -w 16 -t topic2;
...
./mqadmin updateTopic -c MyCluster -n 192.168.1.100:9876 -r 16 -w 16 -t topic500;
I can send the message without delay ,but I find sometime that the client can not consume the message because the broker do not have consume client.How to fix this bug?

[maixiaohai]

Hi @VAEAZE , refer to this issue https://github.com/apache/rocketmq-spring/issues/339
set different instance name can fix it.

[VAEAZE]

@maixiaohai ,at first ,I start two instance,when I find that may be the reason,I have stop all of them.Ant then start one of the instance,but when the topic is create more and more,the problem still happen,