title: Kafka consumer UNKNOWN_TOPIC_OR_PARTITION
body: <p>I have a microservice running kafka consumer group subscribing to two different topic(say topic1 and topic2). Verified the subscription with below command -
  <code>bin\windows\kafka-consumer-groups.bat --bootstrap-server localhost:9092 --describe --group mygroupId</code></p>
  <p>It seems to be working fine.</p>
  <p>However, the service logs are producing warning as -
  <code>[Consumer clientId=myclientId, groupId=mygroupId] Error while fetching metadata with correlation id 2369423 : {topic1,topic2=UNKNOWN_TOPIC_OR_PARTITION}</code></p>
  <p>I have verified topic names and they do exist. Also tried running a producer and consumer via console, and the messages are being published and received successfully.
  Also verified the acl on the topic with below command and the output was empty.
  <code>kafka-acls.sh --authorizer-properties zookeeper.connect=zookeeperhost:2181 --list --topic topic1</code></p>
  <p>Can someone please help as why this UNKNOWN_TOPIC_OR_PARTITION error might be coming?</p>