Hi All, I would like to start a discussion on "Spark Connect the default API in Spark 4.0".
The rationale for this change is that Spark Connect brings a lot of improvements with respect to simplicity, stability, isolation, upgradability, and extensibility (all detailed in the SPIP). In a nutshell: we want to introduce a flag, spark.api.mode, that allows a user to choose between classic or connect mode, the default being connect. A user can easily fallback to Classic by setting spark.api.mode to classic. SPIP: https://docs.google.com/document/d/1C0kuQEliG78HujVwdnSk0wjNwHEDdwo2o8aVq7kbhTo/edit?tab=t.0#heading=h.r2c3xrbiklu3 JIRA: https://issues.apache.org/jira/browse/SPARK-50411 I am looking forward to your feedback! Cheers, Herman