1.11. Tungsten Clustering 6.1.21 GA (18 Apr 2023)

Version End of Life. 15 Aug 2024

Release 6.1.21 contains a number of critical bug fixes and improvements.

Behavior Changes

The following changes have been made to Tungsten Cluster and may affect existing scripts and integration tools. Any scripts or environment which make use of these tools should check and update for the new configuration:

  • Command-line Tools

    • The tungsten_skip_all command (along with alias tungsten_skip_seqno) now shows the full pendingExceptionMessage instead of just pendingError, and the More choice shows the pendingErrorEventId and the pendingError.

      Issues: CT-2030

    • Enabling a custom backup script does not require it to be made the default option anymore, i.e. Setting --repl-backup-method to the custom backup script is not required anymore.

      Issues: CT-2039

    • No longer using connector graceful-stop together with systemd for upgrades. The underlying change of binary confuses systemd scripts.

      Issues: CT-2113

Known Issue

The following issues are known within this release but not considered critical, nor impact the operation of Tungsten Cluster. They will be addressed in a subsequent patch release.

  • Tungsten Connector

    • Note, this bug only affects this release, v6.1.21

      Each "SET xxx" statement issued when in proxy mode is being logged. On top of polluting the logs, this extra logging can overwhelm the connector, making it slow to respond and have client threads pile up, up to the point where that could exhaust memory

      If using Proxy mode, it is advised to NOT install this release, and instead use either version 6.1.20 or 6.1.22

      Issues: CT-2165(ki)

Improvements, new features and functionality

  • Command-line Tools

    • tungsten show processlist could error with a disconnection message listing connections disconnected on the mysql server side.

      Issues: CT-2112

    • The tpm diag command now captures the output of cctrl> cluster topology validate

      Issues: CT-2115

  • Platform Specific Deployments

    • ARM 64 bit processor support added (linux aarch64)


      Note that at time of release, there is currently no xtrabackup binary available for ARM.

      Issues: CT-1619, CT-1620

Bug Fixes

  • Command-line Tools

    • The tungsten_get_status command now handles shunned nodes properly.

      Issues: CT-2026

    • The tpm ask keys command now lists all available keys properly.

      Issues: CT-2041