This topic describes the release notes of E-MapReduce (EMR) V3.29.X, including the release date and updates.

Release date

July 29, 2020 for EMR V3.29.0

Updates

Component Description
Bigboot
  • Bigboot is updated to 2.7.301.
  • JindoDistCp allows you to write data into OSS in IA or Archive mode.
  • Features of Jindo Fuse are enhanced to support multiple namespaces.
  • The metadata caching feature of JindoFS in cache mode is enhanced.
Spark
  • Spark is updated to 2.4.5.2.0.
  • A third-party metastore is supported.
  • The datalake metastore-client parameter is added.
Hive
  • Hive is updated to 2.3.5.6.0.
  • A third-party metastore is supported.
  • The datalake metastore-client parameter is added.
Presto Presto is updated to 338.
Ranger
  • The Ranger software package is updated to 1.2.0-1.5.0.
  • Presto 338 is supported.
  • The Description parameter is added to the configuration file.
HDFS The space reserved for DataNode is configured as needed.
Knox Knox is compatible with Impala, later Flink versions, and PAI.
Druid Druid is updated to 0.18.1.
SmartData SmartData is updated to 2.7.301.