Vitess is a database solution for deploying, scaling, and managing large clusters of MySQL. We are very happy that the development team around Ruslan Gibaiev and Kewei Shang of Bolt Technology OÜ decided to build a CDC solution based on Debezium and to open-source it under the Debezium umbrella. This connector is released in incubating state in Debezium 1.4.

Ruslan and Kewei will follow up with a blog post with more details around this connector very soon; in the mean time please refer to the connector reference documentation to learn more.

One of the major focus points for Debezium 1.4 is to explore more flexible snapshot options, e.g. to re-snapshot chosen tables or parallelizing long-running snapshot operations.

A first improvement related to snapshotting is the new connector configuration snapshot.include.collection.list, which allows to snapshot only a subset of all the tables which the connector will capture later on during log reading. This comes in handy if for instance you’re interested in capturing changes to all your tables, but only need an initial snasphot of the data for some of them.

For the Postgres connector, by creating a custom implementation of the Snapshotter SPI contract, this also allows for a selective re-snapshot of specific tables. After restarting the connector, such Snapshotter would continue to read the log from the point where it left off previously until "now", then it would take a snapshot of the given tables, and finally continue to read the log for all captured tables.

For more information on this option, please see the connector-specific documentation for more details.

Besides these key features, there’s a few other features coming with the 1.4.0.Alpha1 release:

Also a number of bugs were fixed, e.g.:

A big thank you to all the contributors from the community who worked on this release: Faizan, Sergei Morozov, Kewei Shang, Michael Wang, Arik Cohen, James Gormley, jinguangyang, Kaushik Iyer, John Martin, Travis Elnicky, Yiming Liu, and Bingqin Zhou!