2 cnDBTier Features

This section provides the list of features that are introduced or enhanced in release 24.1.x.

Release 24.1.2

Oracle Communications Cloud Native Core, cnDBTier 24.1.2 has been updated with the following new features or feature enhancements:
  • Enhancement to Georeplication Recovery: With this enhancement, cnDBTier has improved the rate at which the backup files are transferred between sites during a georeplication recovery. This improvement is achieved by:
    • using Secure File Transfer Protocol (SFTP) instead of CURL to transfer backup files between sites.
    • configuring a separate parameter (numberofparallelbackuptransfer) to perform the parallel transfer of backups in the data nodes. For more information about this parameter, see the "Customizing cnDBTier" section in Oracle Communications Cloud Native Core, cnDBTier Installation, Upgrade, and Fault Recovery Guide.

Note:

The recommended value of the HeartbeatIntervalDbDb parameter is updated to "1250" in this release. When you upgrade cnDBTier, check the value of HeartbeatIntervalDbDb in the running cnDBtier instance. If the value is not set to "1250", then update the value to "1250" step by step. For the steps to increase or decrease the value to "1250", see the "Upgrading cnDBTier Clusters" section in Oracle Communications Cloud Native Core, cnDBTier Installation, Upgrade, and Fault Recovery Guide.

Release 24.1.1

There are no new features or feature enhancements in this release.

Release 24.1.0

Oracle Communications Cloud Native Core, cnDBTier 24.1.0 has been updated with the following new features or feature enhancements:
  • REST APIs to Display cnDBTier Health Status on CNC Console: In this release, cnDBTier exposes the following REST APIs to CNC Console:
    • Health status of replication service
    • Health status of monitor service
    • Overall health status of NDB data service
    • Health status of backup manager service

    CNC Console uses these REST APIs to fetch cnDBTier health status data and display them on the CNC Console GUI. This way, cnDBTier facilitates users to integrate and view the health status of cnDBTier services on CNC Console. For more information about this feature and the REST APIs, see Oracle Communications Cloud Native Core, cnDBTier User Guide.

  • TLS Support for Georeplication: With this release, the TLS feature is enhanced to support the following functionalists:
    • Support for TLS 1.3. With this, cnDBTier supports creation of TLS 1.3 connections, and mandatory ciphers.
    • Supports all cnDBTier operations when TLS is enabled or disabled on cnDBTier sites.
    • Supports maintaining separate certificates for each replication channel groups and each site replicating to other sites.

    Consideration: If you are enabling TLS for the replication channels, be informed that cnDBTier doesn't support addition and removal of replication channel groups on cnDBTier setups where TLS is enabled.

    For more information about this feature, see Oracle Communications Cloud Native Core, cnDBTier User Guide and Oracle Communications Cloud Native Core, cnDBTier Installation, Upgrade, and Fault Recovery Guide.

  • Multithreaded Applier (MTA): The MTA feature provides the functionality to allow independent binlog transactions to be run in parallel at a replica thereby increasing the peak replication throughput. NDB replication is modified to support the use of generic MySQL server MTA mechanism. cnDBTier 24.1.0 supports MTA feature by resolving the issues. For more information about this fetaure, see Oracle Communications Cloud Native Core, cnDBTier User Guide and Oracle Communications Cloud Native Core, cnDBTier Installation, Upgrade, and Fault Recovery Guide.
  • Support for New Versions of Software: cnDBTier has updated the following software in this release:
    • Oracle MySQL Cluster Database - 8.0.36