A.8. Continuent Tungsten 4.0.1 GA (20 Jul 2015)

Continuent Tungsten 4.0.1 is a bugfix release that contains critical fixes and improvements.

Known Issue

The following issues may affect the operation of Continuent Tungsten and should be taken into account when deploying or updating to this release.

  • For security purposes you should ensure that you secure the following areas of your deployment:

  • Under certain circumstances, the rsync process can randomly fail during the installation/ deployment process when using the staging method of deployment. The error code returned by rsync may be 12 or 23.

    The error is transient and non-specific and deployment should be retried.

    Issues: CONT-1343

Improvements, new features and functionality

  • Core Replicator

    • EBS snapshots have been updated to support MySQL table locks during operation.

      Issues: CONT-89

  • Tungsten Manager

    • The manager would incorrectly shun the entire remote service when the site appears to be unreachable, shunning the remote composite datasource including the physical datasources. This has been updated so that only the composite data source and not underlying physical data sources are shunned.

      Issues: CONT-199

    • The manager would not put relay replicators ONLINE after being restarted.

      Issues: CONT-545

Bug Fixes

  • Core Replicator

    • When running the trepctl reset command on a master, DDL statements could be placed into the binary log that would delete corresponding management tables within slaves. Binary logging for these operations is now suppressed for these operations.

      Issues: CONT-533

    • The timezone information for the trep_commit_seqno table would be incorrect when using parallel replication with a server timezone other than GMT.

      Issues: CONT-621