Factual | Profiling Hadoop Jobs With Riemann
Factual processes nontrivial amounts of data. Our analyses may range over 1011 records, reading hundreds of gigabytes to hundreds of terabytes of source data and intermediate representations. At this scale, performance optimizations can save us significant time and money. We use VisualVM, jhat, and Yourkit for memory and CPU profiling, and the excellent Criterium for microbenchmarks in Clojure. Th
Riemann - A network monitoring system
Riemann aggregates events from your servers and applications with a powerful stream processing language. Send an email for every exception in your app. Track the latency distribution of your web app. See the top processes on any host, by memory and CPU. Combine statistics from every Riak node in your cluster and forward to Graphite. Track user activity from second to second. Riemann provides low-l
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