What’s new

In comparison with the previous BD|CESGA platform these are the main improvements:

• Hadoop is now upgraded to Hadoop 3.

• Spark 2.4 is now the default version.

• HUE 4.

• HDFS Erasure coding: allows to reduce storage overhead over default 3x replication.

• Impala is now available as an alternative to Hive for interactive SQL queries.

• The HOME system has been migrated from GlusterFS to the new Netapp storage system, this has greatly improved the latency of the HOME filesystem.

• Improved reliability:

  • The HDFS NameNode is now in HA configuration.

  • The YARN ResourceManager is now in HA configuration.

• Improved security:

  • SSL/TLS is now enabled for more secure communications.