title: Kafka KSQLDB server logs constantly "found no committed offset for partition"
body: <p>I run Kafka and a KSQLDB server on headless mode.
  On the KSQLDB Server, I have only deployed a couple of queries to experiment with:</p>
  
  <pre><code>CREATE STREAM pageviews_original (viewtime bigint, userid varchar, pageid varchar) WITH (kafka_topic='pageviews-ksql', PARTITIONS=1, REPLICAS=3, value_format='DELIMITED');
  
  CREATE TABLE users_original (registertime BIGINT, gender VARCHAR, regionid VARCHAR, userid VARCHAR) WITH (kafka_topic='users-ksql', PARTITIONS=1, REPLICAS=3, value_format='JSON', key = 'userid');
  
  CREATE STREAM pageviews_enriched AS SELECT users_original.userid AS userid, pageid, regionid, gender FROM pageviews_original LEFT JOIN users_original ON pageviews_original.userid = users_original.userid;
  </code></pre>
  
  <p>My problem is that the the KSQLDB server is now constantly logging this INFO message:<br>
  "found no committed offset for partition _confluent-ksql-ksql-01query_CSAS_PAGEVIEWS_ENRICHED_0-Join-repartition-0".    </p>
  
  <p>It's spamming the logs with this message about 10 times per second. 
  The corresponding topic is empty.</p>
  
  <p>What does this mean and how can I fix it?</p>