https://blog-39aaf1.gitlab.io/tags/camel/Recent content in Camel on Antoine DebuissonHugoen-usMon, 11 Mar 2019 00:00:00 +0000https://blog-39aaf1.gitlab.io/posts/reliable-dead-letter-queue-dlq-using-apache-camel-and-kafka/Mon, 11 Mar 2019 00:00:00 +0000https://blog-39aaf1.gitlab.io/posts/reliable-dead-letter-queue-dlq-using-apache-camel-and-kafka/<p>By default, the Kafka consumer will use auto commit, where the offset will be committed automatically in the background using a given interval.</p> <h2 id="enable-manual-commit">Enable Manual Commit <a href="#enable-manual-commit" class="anchor">🔗</a></h2><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-properties" data-lang="properties"><span style="display:flex;"><span><span style="color:#b44">camel.component.kafka.auto-commit-enable</span><span style="color:#666">=</span><span style="color:#b44">false</span> </span></span><span style="display:flex;"><span><span style="color:#b44">camel.component.kafka.allow-manual-commit</span><span style="color:#666">=</span><span style="color:#b44">true</span> </span></span></code></pre></div><p>The Kafka consumer periodically fetch a set of records and feeds them to the route. If an exception is thrown while processing the current message at offset N. <code>camel.component.kafka.break-on-first-error=true</code> is required to stop processing further messages. Otherwise the next message would be processed and offset N + 1 would be commited.</p>