title: Either no records were produced by the task since the last offset commit or every record has been filtered out
body: <p>I'm working on a task to setup jdbc kafka connector on my local machine. I went through the setup step by step one by one:</p>
  <pre><code>➜  bin ./zookeeper-server-start.sh ../config/zookeeper.properties
  ➜  bin ./kafka-topics.sh --create --topic quickstart-events --bootstrap-server localhost:9092
  ➜  bin  ./connect-distributed.sh ../config/connect-distributed.properties
  </code></pre>
  <p>and ran Kafka server successfully.</p>
  <p>Finally registered the jdbc kafka connector using curl command:</p>
  <pre><code>curl -X POST http://localhost:8083/connectors -H &quot;Content-Type: application/json&quot; -d '{
          &quot;name&quot;: &quot;jdbc_source_mysql_01&quot;,
          &quot;config&quot;: {
                  &quot;connector.class&quot;: &quot;io.confluent.connect.jdbc.JdbcSourceConnector&quot;,
                  &quot;connection.url&quot;: &quot;jdbc:mysql://mysql:3306/neo_table”,
                  &quot;connection.user&quot;: “root”,
                  &quot;connection.password&quot;: &quot;xxx&quot;,
                  &quot;topic.prefix&quot;: &quot;saif-test&quot;,
                  &quot;mode&quot;:&quot;bulk&quot;,
                  &quot;poll.interval.ms&quot; : 3600000
                  }
          }'
  </code></pre>
  <p>And finally ran the consumer:</p>
  <pre><code> ➜  bin sh kafka-console-consumer.sh --topic saif-test  --bootstrap-server localhost:9092  
  </code></pre>
  <p>but consumer is sitting their idle, not printing any messages, and kafka server is printing error messages:</p>
  <blockquote>
  <p>[2022-04-06 08:53:43,060] INFO [jdbc_source_mysql_01|task-0|offsets]
  WorkerSourceTask{id=jdbc_source_mysql_01-0} Either no records were
  produced by the task since the last offset commit, or every record has
  been filtered out by a transformation or dropped due to transformation
  or conversion errors.
  (org.apache.kafka.connect.runtime.WorkerSourceTask:484)</p>
  </blockquote>
  <pre><code>➜  bin sh kafka-topics.sh --bootstrap-server=localhost:9092 --list
  __consumer_offsets
  connect-configs
  connect-offsets
  connect-status
  neo_table
  neo_tableneo_table
  neo_tablesys_config
  quickstart-events
  saif-test
  saif-testneo_table
  saif-testsys_config  
  </code></pre>