Please check my previous email. On Sat, 8 Jul 2017 at 2:32 am, Ali Akhtar <ali.rac...@gmail.com> wrote:
> What happens if auto creation is enabled but the topic doesn't exist. > Consumers subscribe to that topic which doesn't exist. Then messages are > posted to that topic. > > Will the consumer receive those messages in this scenario? > > > > On 8 Jul 2017 4:38 a.m., "M. Manna" <manme...@gmail.com> wrote: > > That depends. > > If auto creation of non-existent topic enabled (check docs), then it will > simple use the minimum partiotion and replication settings defined in > broker config to create a topic. If auto creation is disabled, your > consumer group won't do anything. > > With auto creation enable - It's the same if you publish to a topic that > doesn't yet exist. But that means topic will get created first, and then > the messages are sent on the bus. If you subscribe to that topic later you > will get messages. Check below: > > http://grokbase.com/t/kafka/users/1648kbr04c/subscribe-on- > a-topic-that-does-not-exist > > > > On 7 Jul 2017 9:46 pm, "Ali Akhtar" <ali.rac...@gmail.com> wrote: > > > Sometimes I see warnings in my logs if i create a consumer for a topic > > which doesn't exist. Such as: > > > > org.apache.kafka.clients.NetworkClient - Error while fetching metadata > > with correlation id 1 : {example_topic=LEADER_NOT_AVAILABLE} > > > > If later messages are posted to that topic (which will create it), will > my > > consumer receive those messages? > > >
