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Last updated : May 22, 2013
This blip is not on the current edition of the Radar. If it was on one of the last few editions, it is likely that it is still relevant. If the blip is older, it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the Radar. Understand more
May 2013
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Riemann is an open source server that aggregates and relays events in real time. Written in Clojure, and based on Netty, it is capable of handling thousands of concurrent connections per node. Riemann uses a simple Protobuf protocol for events, which allows it to aggregate everything from CPU and memory use to orders placed to error rates. It forwards to systems like Graphite, triggers email alerts, and provides a dashboard for monitoring these metrics. Riemann is an important part of the movement towards handling data as generic streams of events in real-time, as opposed to using specialized systems for different types of data.
Oct 2012
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Published : Oct 22, 2012

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