Presto: Free, Open-Source SQL Query Engine for any Data
Calling our Presto community speakers – we want to hear from you! Fill out out community call for papers to speak at upcoming meetups and conferences. What is Presto?Presto is an open source SQL query engine that’s fast, reliable, and efficient at scale. Use Presto to run interactive/ad hoc queries at sub-second performance for your high volume apps.
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Facebook has the world's largest Hadoop cluster!
It is not a secret anymore! The Datawarehouse Hadoop cluster at Facebook has become the largest known Hadoop storage cluster in the world. Here are some of the details about this single HDFS cluster:21 PB of storage in a single HDFS cluster2000 machines12 TB per machine (a few machines have 24 TB each)1200 machines with 8 cores each + 800 machines with 16 cores each32 GB of RAM per machine15 map-r
HUG Nov 2010: HDFS Raid - Facebook
HDFS RAID is a contrib project in Hadoop that implements RAID techniques to reduce replication of data in HDFS and tolerate block failures. At Facebook, HDFS RAID is saving about 5PB of storage space by using XOR parity with gradual deployment across tables. The key components are the RaidNode daemon that generates parity files, the BlockFixer that reconstructs missing or corrupt blocks, and the D
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https://www.cs.duke.edu/~kmoses/cps516/puma.html
http://www-conf.slac.stanford.edu/xldb2011/talks/xldb2011_tue_0940_FacebookRealtimeAnalytics.pdf
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