2.3. Tungsten Replicator 6.1.18 GA (7 Sept 2022)

Version End of Life. Not Yet Set

Release 6.1.18 contains a number of minor bug fixes and improvements.

Behavior Changes

The following changes have been made to Tungsten Replicator 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    • The check_tungsten.sh script has been deprecated and no longer maintained. It will be removed in the next patch release and users should use the newer tmonitor commands.

      Issues: CT-1038

Improvements, new features and functionality

  • Command-line Tools

    • The tungsten_merge_logs command now supports the --before TIMESTAMP and --after TIMESTAMP filters

      Issues: CT-1869

  • Core Replicator

    • The thl list command now displays an approximative field size in bytes for row-based replication.

      Issues: CT-1847

    • Added a new feature that enables pausing a replicator stage for some amount of time.

      This will pause the given stage for 100 seconds.:

      trepctl pause -stage thl-to-q -time 100

      This will pause the stage indefinitely (or until restart, etc) Add -y to avoid the prompt message whether you are sure.

      trepctl pause -stage thl-to-q

      For the previous 2 commands, running a pause command again will override the previous command.

      This will resume the suspended stage (Note that if the stage is not paused, this will have no effect):

      trepctl resume -stage thl-to-q

      Note

      Please note this pause does not survive a replicator restart or a service offline/online.

      Issues: CT-1912

  • Other Issues

    • General improvements in MySQL 8.0 support.

      Issues: CT-1346

Bug Fixes

  • Installation and Deployment

    • Fixes issues where fixed properties and filters passed to tpm in service stanzas were not being configured correctly

      Issues: CT-1463

  • Command-line Tools

    • replicator start offline would not properly pass the offline argument to systemd scripts when installed through deployall.

      Issues: CT-1836

    • undeployall script would not properly uninstall systemd services on some distributions including amazon linux.

      Issues: CT-1845

    • The tpm diag command now passes when the nodename defined in the tungsten.ini is the shortname, and DNS returns the FQDN.

      Issues: CT-1908

    • The tpm diag command now gathers the mysql.log file when SSL is enabled in the server

      Issues: CT-1933

    • The tpm diag command now behaves properly when the MySQL server is logging to STDERR.

      Issues: CT-1935

  • Backup and Restore

    • Fixed an issue where an xtrabackup generated by the replicator would fail to be restored using trepctl restore command.

      Issues: CT-1575

  • Core Replicator

    • Fixes an issue that would prevent a service from going offline at a specified time (trepctl online -until-time) when parallel apply is enabled. This is a rework of CT-1243.

      Issues: CT-1684

    • Fixed a possible issue when recovering an old primary as a replica after failover when parallel apply is enabled, that could lead the replica to be unable to come online and require a reprovisioning of this replica.

      Issues: CT-1890

    • Fixes an issue that prevented geometry datatypes with SRID from being replicated.

      Issues: CT-1904

    • Fixed an issue where filtered events would trigger a useless update to the service trep_commit_seqno table while it is overwritten anyway once the last statement of the applied event is done, just prior to committing the whole block.

      Issues: CT-1931