Version End of Life. 15 Aug 2024
Release 6.1.22 contains a number of critical bug fixes and it is advised customers running 6.1.21 should upgrade to this release.
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:
cctrl now accepts services names with capital letters, dots and hyphens
ROWbased replication. An alternative workaround to ensure correct rollback on failure, would be to run the statement with
STATEMENTbased replication for the session. This will also provide better performance for larger tables.
Improved a query that is run by Tungsten when fetching tables metadata (column names, datatypes, etc). While it is not generally needed, the unoptimized query can run badly (especially) against old mysql versions with a lot of databases / tables. For now, the new optimized query is not used by default, but this could change in some future version.
This can be enabled by using the following property :
Removed extra logging for each
"SET xxx" statement when in proxy mode. 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