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Quantcast File System for Hadoop

Quantcast released a new Hadoop file system QFS:

  1. fully compatible with HDFS
  2. licensed under Apache 2.0 license
  3. written in C++
  4. while HDFS replicates data 3 times, QFS requires only 1.5x raw capacity
  5. QFS supports two types of fault tolerance: chunk replication and Reed-Solomon encoding
  6. QFS components (more details here):


  7. QFS performance comparison to HDFS:

    QFS Performance Comparison to HDFS

Now I’m looking forward to hear comments from HDFS experts about QFS.

Original title and link: Quantcast File System for Hadoop (NoSQL database©myNoSQL)