Bigdata distributions are mostly three familiar in the present market.
Cloudera, HDP (Hadoop Data Platform) are open source and enterprise editions are also available but MapR is a complete enterprise distribution for Apache Hadoop which is designed to improve the Hadoop’s reliability, performance, and ease of use.
Hortonworks Cloudera MapR
Management Tools Ambari Cloudera Manager MapR CS
Volume Support No No Yes
Heat map, Alarms Yes Yes Yes
Alerts Yes Yes Yes
REST API Yes Yes Yes
Hortonworks - Single failure recovery Cloudera - Single failure recovery MapR - Self healing across multiple failures
Hortonworks - Data Cloudera - Data MapR - Data + Metadata
Hortonworks - No Cloudera - File Copy Scheduling MapR - Monitoring
Hortonworks - Planned downtime Cloudera - Rolling Upgrades MapR - Rolling Upgrades
Summary: Nowadays Big data and Analytics are the most emerging technology. Especially Big data distributions are Cloudera, HDP, and MapR. These are some special features and open source and enterprise editions. MapR is used in the Banking and Finance sectors are used mostly. Cloudera is used anywhere with enterprise and open source. Hortonworks is also same like as Cloudera.