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Heapster provides an agent library to do heap profiling for JVM processes with output compatible with Google perftools. The goal of Heapster is to be able to do meaningful (sampled) heap profiling in a production setting.
Used by Twitter in production, apparently.(tags: heap monitoring memory jvm java performance)
The Network is Reliable – ACM Queue
Peter Bailis and Kyle Kingsbury accumulate a comprehensive, informal survey of real-world network failures observed in production. I remember that April 2011 EBS outage…
(tags: ec2 aws networking outages partitions jepsen pbailis aphyr acm-queue acm survey ops)