[GitHub] [pulsar] xuesongxs commented on issue #11756: When one consumer subscribes to multiple topics, disable allowAutoTopicCreation in broker.conf, as long as one topic in the topic list does not exist, messages cannot be received

[GitBox <gi...@apache.org>]

xuesongxs commented on issue #11756:
URL: https://github.com/apache/pulsar/issues/11756#issuecomment-905075363


   > So in my understanding, there are two bugs
   > 
   > 1. when subscribe to a non-exist topic and some existing topics, the consumer  is expected to consume data from the existing topics, but we find it can't.
   > 2. Despite case 1, when we delete the non-exsit topic subscription from the subscription, the consumer is expected to consume data from existing topics, and now we observed after case 1, the consumer doesn't behave as expected.
   > 
   > To me case 2 indicates some isolation issue between different client connections which seems a bigger trouble. Do you see any error messages after your step 8 on why it cannot receive message from the existing topic? Thanks ~
   
   After step 8, the consumer's log show subscribe succeeded, but no more information:
   ```
   2021-08-25 08:41:45.327 [pulsar-client-io-1-1] INFO  org.apache.pulsar.client.impl.ConsumerImpl - [persistent://public/default/test-string112-partition-0][consumerSych] Subscribing to topic on cnx [id: 0xb65309ef, L:/172.32.147.245:7184 - R:/172.32.149.123:16650]  
   2021-08-25 08:41:45.364 [pulsar-client-io-1-1] INFO  org.apache.pulsar.client.impl.ConsumerImpl - [persistent://public/default/test-string112-partition-0][consumerSych] Subscribed to topic on /172.32.149.123:16650 -- consumer: 0  
   2021-08-25 08:41:45.368 [pulsar-client-io-1-1] INFO  o.a.pulsar.client.impl.MultiTopicsConsumerImpl - [persistent://public/default/test-string112] [consumerSych] Success subscribe new topic persistent://public/default/test-string112 in topics consumer, partitions: 1, allTopicPartitionsNumber: 1  
   ```
   
   The consumer app has no other log information.
   
   
   
   


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