MapR Technologies Claims Better Performance
MapR is a bit of a rabble rouser in the Hadoop arena, offering a unique distribution. This takes what the company wants from the open-source Apache project, while spitting out components it doesn't like (particularly HDFS, which MapR considers a single point of failure, and replaces it with the Unix-based Network File System). This competitor to Cloudera and Hortonworks combines its M5 commercial Hadoop distribution with support, training, and consulting (an M3 distribution is free and 100% compatible with Apache Hadoop). MapR is partnered with EMC, which has adopted M5 as the basis of its EMC Greenplum HD Enterprise Edition.
The latest (0.23) version of Hadoop addresses many of MapR's complaints about the Hadoop architecture, but that hasn't stopped the company from continuing to push the performance envelope, claiming to offer faster performance than conventional Hadoop distributions while requiring half the hardware.