Reproducing cassandra insert performance problem with spring-data

https://stackoverflow.com/questions/69772144/spring-data-cassandra-reactive-improve-perfromance-of-reactivecrudrepository-sav

Run docker-compose up (start local cassandra)

Run SpringDataCassandraPerformanceApplication

Change insert mode by switching execution CassandraInsertRunner line 58,59

Insert performance difference in my case is huge:

• ~15k inserts per second with ReactiveCrudRepository
• ~40k inserts per second with Plain Cql execution

Tested on Java 8 and 17

• https://docs.spring.io/spring-data/cassandra/docs/current/reference/html/#mapping.property-population