CRITICAL Tungsten Clustering Bugfix v6.0.2 Released

Continuent is pleased to announce that Tungsten Clustering 6.0.2 and Tungsten Replicator 6.0.2 are now available!

Our 6.0.2 release is a critical bug fix for the cluster Manager logic within a Multimaster cluster.

All current users of v6.0.0 and v6.0.1 should upgrade IMMEDIATELY!

Fixes issue CT-672: the manager could set the master to read-only when performing a switch operation.

There is a procedural work-around if you get into this situation:

shell> cctrl
cctrl> use {dataservice where the master was switched or failed over to}
cctrl> set policy automatic
cctrl> datasource {new-master} offline

The Manager rules in automatic mode will put the datasource back online and, in the process, will clear the mysql read-only flag.

The alternative, if the cluster is in maintenance mode:

shell> cctrl
cctrl> datasource {new-master} offline
cctrl> datasource {new-master} online

Full release notes are available:


About the Author

Eric M. Stone
COO and VP of Product Management

Eric is a veteran of fast-paced, large-scale enterprise environments with 35 years of Information Technology experience. With a focus on HA/DR, from building data centers and trading floors to world-wide deployments, Eric has architected, coded, deployed and administered systems for a wide variety of disparate customers, from Fortune 500 financial institutions to SMB’s.

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