ual topics.
Starting in 0.10.0.0, a light-weight but powerful stream processing library called <a href="/documentation/streams">Kafka Streams</a>
is available in Apache Kafka to perform such data processing as described above.
Apart from Kafka Streams, alternative open source stream processing tools include <a href="https://storm.apache.org/">Apache Storm</a> and
<a href="https://samza.apache.org/">Apache Samza</a>.

<h4 class="anchor-heading"><a id="uses_eventsourcing" class="anchor-link"></a><a href="#use