The process of upgrading MySQL when using Tungsten Replicator should be fairly straightforward, however if you are replicating between MySQL and your source/target MySQL versions are different, there may be additional considerations to take into account with regards to the Replicator.

In all cases, it is paramount that your applications have been fully tested against the newer version of MySQL to ensure that your application is not impacted by any behavior changes within the core MySQL engine.

Issues that may arise, and the subsequent workarounds are outlined in the following sections of this document. Where a workaround within Tungsten is not possible, this will be clearly identified.