This topic describes the release notes of versions earlier than E-MapReduce V3.22.X.

E-MapReduce V3.1.1

  • Upgraded the operating system to CentOS 7.2.
  • Upgraded Spark to version 2.1.1.
  • Upgraded emr-core to version 1.2.6.
  • Fixed several bugs of AccessKey-free operations in Object Storage Service (OSS).

E-MapReduce V3.0.2

  • Upgraded emr-core to version 1.2.5.
  • Supports AccessKey-free OSS operations in more regions.
  • Adjusted the AccessKey replacement strategy of Resource Access Management (RAM) roles.
  • Fixed several bugs related to Hive and Hadoop.

E-MapReduce V3.0.1

  • Supports table management in an interactive and unified manner, and stores Hive metadata in an external unified database. All clusters that use external Hive metadata share the same metadata.
  • Upgraded emr-core to version 1.2.4 to improve the read and write performance of OSS.
  • Upgraded Spark to version 2.0.2.
Note E-MapReduce V3.0.1 is fully compatible with E-MapReduce V3.0.0.

E-MapReduce V3.0.0

Released the initial version of E-MapReduce.