Upgrade to Cassandra driver 4

[mp911de]

The Cassandra 4 driver comes with several changes (in comparison to the 3.x driver). An upgrade requires some coordination as the 4.0 driver comes with:

• An entirely new package structure (Old: com.datastax.driver, new: com.datastax.oss.driver.api) and new maven coordinates (com.datastax.cassandra:cassandra-driver-core vs. new com.datastax.oss:java-driver-core)
• Changed concepts (new driver drops the intermediate Cluster concept in favor of a single CqlSession entry point)
• Several changes to configuration properties

Special attention deserves DriverConfigLoader that is a configuration utility to load driver config from a .conf/.json/.properties file and the fact that although Guava is no longer required as a dependency, the driver still uses a shaded variant of Guava.

It looks as if both drivers could be used side by side until Spring Data for Apache Cassandra and Zipkin are able to catch up.

[mp911de]

Spring Data Cassandra issue to upgrade the driver: DATACASS-656.

[lankydan]

@mp911de Would I be able to reserve this for a week or 2? I would love to go through this and the spring data part with a mentee of mine.

[mp911de]

Feel free to take a spike on the upgrade. There's a bit of description in DATACASS-656 and as things look now, it's a fair chunk of work that needs to be done for a proper upgrade. Let's continue any Spring Data-related discussion in the linked ticket.

[lankydan]

Sweet, thx Mark.

[lankydan]

Unreserving after talking to @mp911de

[wilkinsona]

I'm not sure that it's worth us offering auto-configuration for the new driver before Spring Data for Apache Cassandra has caught up, particularly with all the other things going on at the moment. I've placed this on hold until the update in Spring Data has been scheduled.

[mp911de]

I'm in the middle of migrating Spring Data to the 4.x driver. I noticed that running both drivers, 3.x and 4.x side-by-side does not work because of netty incompatibilities. Timing-wise it would make sense to synchronize Driver and Spring Data upgrades.

[mp911de]

I summarized the changes for the Cassandra migration (from a Spring Data perspective) at spring-projects/spring-data-cassandra#167. Snapshot builds are available for the 3.0.0.BUILD-SNAPSHOT version.

[adutra]

Hi, DataStax has been working lately on a Spring Boot module for Apache Cassandra and DSE.

It uses the DataStax driver 4.x and offers out-of-the-box driver configuration and injection of session beans. Driver configuration is created by merging info from other Spring beans, Spring configuration sources and driver configuration files. Spring profiles are also honored. It also offers health indicators and metrics (driver metrics are translated into Micrometer metrics).

We would like to donate this code to you. Could you please tell us what is the best way to proceed? Feel free to ping me privately if necessary: alexandre [dot] dutra [at] datastax [dot] com.

[philwebb]

@adutra Is the module currently open source? Can we take a quick look at the code to see what's involved?