Upgrade image-suggestions to Spark3. Take two.
( This is a redo of !186 (merged) )
In this MR we upgrade the platform_eng
Airflow instance to default to Spark3, and we upgrade the image-suggestions
job (which is currently the only job on this instance.). We also fix some correctness issues regarding the use of merge()
.
The airflow job runs all the Spark jobs successfully, including all the Cassandra loading steps.