Quantcast, an internet audience measurement and ad targeting service, processes over 20 petabytes of data per day using Apache Hadoop and its own custom file system called Quantcast File System (QFS).

The proliferation of small files in distributed file systems poses significant challenges that affect both storage efficiency and operational performance. Modern systems, such as Hadoop Distributed ...

Now that big data technologies like Apache Hadoop are moving into the enterprise, system engineers must start building models that can estimate how much work these distributed data processing systems ...

MapR's file system was its original differentiator in the Hadoop market: unlike standard HDFS, which is optimized for reading, and supports writing to a file only once, MapR-FS fully supports the read ...