Introducing Tungsten Cluster & Tungsten Replicator v8.0.1

We’re excited to announce the release of Tungsten v8.0.1, which brings important behavior changes, new features, monitoring enhancements, and a wide set of bug fixes that strengthen both security and reliability. This update continues to build on the foundation of Tungsten v8, with a focus on streamlining configuration management, improving operational ease, and expanding platform support.

Behavior Changes

Several changes in this release may affect existing deployments and scripts. During installation and deployment, tpm validate now verifies that localhost is correctly defined in /etc/hosts, and tpm will only read from /etc/tungsten/tungsten.ini by default. For alternate paths or multiple configuration files, you must now use the --ini option.

The tprovision command has been re-factored to remove its dependency on the tungsten_get_mysql_datadir utility, making it both more stable and performant. On the security side, you will now see clearer error messages when TLS certificates differ between connectors and managers, or when an SSL handshake is refused.

Key Changes

• tpm defaults to /etc/tungsten/tungsten.ini; --ini is now required for alternate paths.
• tprovision refactored for stability.
• Clearer TLS/SSL error messages.

Improvements, New Features & Functionality

Version 8.0.1 introduces several enhancements to the command-line tools. A new tpm ini upgrade command has been added to help preview or apply configuration file changes during version upgrades, and tpm ini check now validates composite topologies. And new tpm flag --add-ssl allows forcing to generate certificates during an upgrade.

Security has also been improved with support for dual MySQL SSL certificates, allowing certificate rotation without downtime.

Monitoring capabilities have been expanded with additional Prometheus metrics for the Replicator, including metrics that track how long a replicator service has been online as well as detailed task-level performance statistics, consistent with the trepctl perf output. On the platform side, this release also certifies support for the LTS MariaDB 11.4.

Key Additions

• New tpm ini upgrade & improved tpm ini check.
• Dual SSL certs with rotate_certs tool.
• Expanded Prometheus metrics.
• Certified MariaDB 11.4 support.

Bug Fixes

This release resolves a wide range of issues across the Tungsten suite. Command-line tools such as tapi, tpm purge-thl, and tungsten_send_diag have all been improved to handle errors and payloads more gracefully. Backup and restore processes now function correctly on hosts with hyphens in their names.

In the Tungsten Connector, unnecessary broken pipe error messages have been removed, bridge mode routing now works correctly for non-default ports, and NullPointerExceptions caused by I/O errors in the router gateway have been fixed. Stability has also been improved in conditions of partial network partitions between sites where Connectors can still reach all managers. For the Tungsten Manager, a NullPointerException that could prevent failover in certain situations has been addressed, and SSL misconfiguration issues between managers and connectors have been resolved.

On the security side, the tungsten_mysql_ssl_setup utility now correctly generates v3 self-signed CA certificates for OpenSSL 3 in RHEL9 environments. Additionally, an issue with the embedded log4j2 library in the tungsten-api jar that caused warnings in cctrl and other logs has been fixed.

Fixes Summary

• CLI tools error handling improved
• Connector + Manager stability fixes
• SSL cert + log4j2 issues resolved

Conclusion

We recommend upgrading to Tungsten Clustering & Tungsten Replicator v8.0.1 to take advantage of these new features, improvements, and fixes.

For a detailed overview of the changes, please visit our documentation:

• Tungsten Clustering
• Tungsten Replicator

Thank you for your continued support and feedback!