Actually no, there is currently no alternate project to HDFS. The only comparable compatible platform for the ecosystem is MapR-FS which is closed source. Kudu

Actually no, there is currently no alternate project to HDFS. The only comparable compatible platform for the ecosystem is MapR-FS which is closed source. Kudu is an interesting experiment, c++ introduces a level of memory management and performance in a space where the JVM typically falls down. Alternately here is a list of the storage engines for MySQL InnoDB MRG_MYISAM BLACKHOLE CSV MEMORY FEDERATED ARCHIVE MyISAM Hadoop used to just have HDFS... now it also has Kudu