Tuning Tomcat For A High Throughput, Fail Fast System
by Sumit Tandon ProblemNetflix has a number of high throughput, low latency mid tier services. In one of these services, it was observed that in case there is a huge surge in traffic in a very short span of time, the machines became cpu-starved and would become unresponsive. This would lead to a bad experience for the clients of this service. They would get a mix of read and connect timeouts. Read
NetflixOSS: Announcing Hollow
“If you can cache everything in a very efficient way, you can often change the game” We software engineers often face problems that require the dissemination of a dataset which doesn’t fit the label “big data”. Examples of this type of problem include: Product metadata on an ecommerce siteDocument metadata in a search engineMetadata about movies and TV shows on an Internet television networkWhen f
Announcing Blitz4j — a scalable logging framework
by Karthikeyan Ranganathan We are proud to announce Blitz4j , a critical component of the Netflix logging infrastructure that helps Netflix achieve high volume logging without affecting scalability of the applications. What is Blitz4j?Blitz4j is a logging framework built on top of log4j to reduce multithreaded contention and enable highly scalable logging without affecting application performance
Benchmarking High Performance I/O with SSD for Cassandra on AWS
by Adrian Cockcroft Today AWS has launched a new Solid State Disk (SSD) based instance that addresses the need for high performance I/O, and we have run a few initial benchmarks to see how it shapes up. With this announcement AWS makes it easy to provision extremely high I/O capacity with consistently low latency. AWS has been competitive in instance memory capacity for a long time and is leading
Open Source at Netflix
by Ruslan Meshenberg At Netflix we use a wide range of Open Source technologies. In the recent months, we also released many of our internally developed components and libraries, starting with Curator for Zookeeper, and most recently with Asgard. We started down this path by becoming a big user of Apache licensed open source software. When we picked Apache Cassandra as our data storage solution we
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