Although Percona Toolkit 2.1.4 was recently released, we soon after found and fixed a couple of bugs concerning how pt-table-checksum works with Percona XtraDB Cluster:
There was also a bug affecting pt-table-sync –version-check, and the version check web page mentioned in tools was created.
Percona Toolkit 2.1.5 is a small release, but if you’re using pt-table-checksum on your Percona XtraDB Cluster then you’ll definitely want to upgrade. Else, you can wait for 2.1.6 which will have these fixes and lots more.
Links to the downloads, documentation, bug reports, mailing list, and more are available from the Percona Toolkit project homepage.