类似Storm几个项目,立此存照,备忘. 
- StreamBase http://www.streambase.com/
- ESper http://esper.codehaus.org/about/nesper/nesper.html
- HStreaming http://www.hstreaming.com/
- Yahoo S4 http://incubator.apache.org/s4/
- Storm http://storm-project.net/
StreamBase
StreamBase provides solutions for real-time analytics. StreamBase’s products include StreamBase LiveView™ and StreamBase Complex Event Processing (CEP), in addition to connectivity to over 150 data sources and an ultra-low latency FIX engine.
StreamBase CEP enables the rapid development and deployment of real-time analytical applications, with pre-built integration for streaming and historical data, visualization engines and statistical tools. StreamBase LiveView is a push-based real-time analytics solution that enables business users to analyze, anticipate and alert on important business events in real-time, and act on opportunities or threats as they occur.
StreamBase CEP enables the rapid development and deployment of real-time analytical applications, with pre-built integration for streaming and historical data, visualization engines and statistical tools. StreamBase LiveView is a push-based real-time analytics solution that enables business users to analyze, anticipate and alert on important business events in real-time, and act on opportunities or threats as they occur.
ESper
Esper is a component for complex event processing (CEP), available for Java as Esper, and for .NET as NEsper.
Esper and NEsper enable rapid development of applications that process large volumes of incoming messages or events. Esper and NEsper filter and analyze events in various ways, and respond to conditions of interest in real-time
Esper and NEsper enable rapid development of applications that process large volumes of incoming messages or events. Esper and NEsper filter and analyze events in various ways, and respond to conditions of interest in real-time
HStreaming
Experience the most scalable real-time analytics platform. Built on Hadoop and MapReduce.
Acting on real-time information correctly and quickly is what drives new business. HStreaming specializes in helping clients process, analyze, and store big data, so they can convert real-time data into real-time insights, and real-time insights into new business opportunities and savings.
Yahoo S4
Acting on real-time information correctly and quickly is what drives new business. HStreaming specializes in helping clients process, analyze, and store big data, so they can convert real-time data into real-time insights, and real-time insights into new business opportunities and savings.
Yahoo S4
S4 is a general-purpose, distributed, scalable, fault-tolerant, pluggableplatform that allows programmers to easily develop applications for processing continuous unbounded streams of data.
Storm
Storm is a free and open source distributed realtime computation system. Storm makes it easy to reliably process unbounded streams of data, doing for realtime processing what Hadoop did for batch processing. Storm is simple, can be used with any programming language, and is a lot of fun to use! 
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