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Comparison Hadoop Cloudera Hadoop MapR
 Version 5.9.x Version 6.1
 Name Cloudera MapR
 Drawbacks -- MapR has done lot of fork on top of Apache products. They even have a MapR filesystem which makes the product quite far from the original apache hadoop distribution.
 Advantages -- --
 Languages Supported Java Python Java Python
 Website www.cloudera.com www.mapr.com
 XML Support no no
 JSON Support yes yes
 Brief description Cloudera is a hybrid open-source packaged distribution primarily of Apache Hadoop, Spark, Kafka. The distribution is called CDH (Cloudera Distribution Including Apache Hadoop). It is targeted at enterprise-class deployments of Hadoop platform. MapR provides access to a variety of data sources from a single computer cluster including big data workloads such as Apache Hadoop Apache Spark and a distributed file system called MapRFS.
 Database Model Hadoop File System (HDFS) Hadoop File System (HDFS)
 Technical Documentation https://www.cloudera.com/documentation.html https://mapr.com/docs/61/
 License Commercial Commercial
 Cloud-based / SaaS Altus is the cloud offering of Cloudera https://mapr.com/products/orbit-cloud/
 Implementation Language NA NA
 Operating System Supported Linux Windows Linux
 Options for Integration / Access API Restful HTTP Restful HTTP
 Consistency NA NA
 Foreign Keys Not but you can join two files using Hive and Impala Not but you can join two files using Hive and Impala
 Streaming Support Yes Yes
 Analytics Support Using Mlib in Apache Spark Using Mlib in Apache Spark
 Data Storage Schema Hadoop File System (HDFS) Hadoop File System (HDFS)
 Notable Users Dun & Bradstreet, AoL Dun & Bradstreet AoL
 Key Differentiator Cloudera Navigator provides lineage of the various jobs and data points. NA
 Concurrency Yes Yes
 Partitioning Yes Yes
 Replication Yes Yes
 Secondary Indexes Yes in HBase. Datawarehouse using cloudera is generally built using Hbase. Hbase has secondary indexes Yes in HBase. Datawarehouse using cloudera is generally built using Hbase. Hbase has secondary indexes
 SchemaLess Yes Yes
 SQL Query No. HiveQL similar to SQL can be used withHive No. HiveQL similar to SQL can be used withHive