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| <p>Storm topologies are inherently parallel and run across a cluster of machines. Different parts of the topology can be scaled individually by tweaking their parallelism. The "rebalance" command of the "storm" command line client can adjust the parallelism of running topologies on the fly. </p> |
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| <p>Storm's inherent parallelism means it can process very high throughputs of messages with very low latency. Storm was benchmarked at processing <strong>one million 100 byte messages per second per node</strong> on hardware with the following specs:</p> |
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| <li><strong>Processor:</strong> 2x Intel <a href="mailto:E5645@2.4Ghz">E5645@2.4Ghz</a> </li> |
| <li><strong>Memory:</strong> 24 GB</li> |
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| <li><a href="http://www.meetup.com/Apache-Storm-Apache-Kafka/">Apache Storm & Apache Kafka</a> <span class="small">(Sunnyvale, CA)</span></li> |
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| <li><a href="http://www.meetup.com/Apache-Storm-Kafka-Users/">Apache Storm & Kafka Users</a> <span class="small">(Seattle, WA)</span></li> |
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| <li><a href="http://www.meetup.com/New-York-City-Storm-User-Group/">NYC Storm User Group</a> <span class="small">(New York, NY)</span></li> |
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| <li><a href="http://www.meetup.com/Bay-Area-Stream-Processing">Bay Area Stream Processing</a> <span class="small">(Emeryville, CA)</span></li> |
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| <li><a href="http://www.meetup.com/Boston-Storm-Users/">Boston Realtime Data</a> <span class="small">(Boston, MA)</span></li> |
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| <li><a href="http://www.meetup.com/storm-london">London Storm User Group</a> <span class="small">(London, UK)</span></li> |
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| <!-- <li><a href="http://www.meetup.com/Apache-Storm-Kafka-Users/">Seatle, WA</a> <span class="small">(27 Jun 2015)</span></li> --> |
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| <h5>About Storm</h5> |
| <p>Storm integrates with any queueing system and any database system. Storm's spout abstraction makes it easy to integrate a new queuing system. Likewise, integrating Storm with database systems is easy.</p> |
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| <p align="center">Copyright © 2015 <a href="http://www.apache.org">Apache Software Foundation</a>. All Rights Reserved. |
| <br>Apache Storm, Apache, the Apache feather logo, and the Apache Storm project logos are trademarks of The Apache Software Foundation. |
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