cassandra version compatibility with 3.7? -

is spring-data-cassandra version 1.4.2 compatible cassandra version 3.7? following error when try connect:

error creating bean name 'cassandrasession': invocation of init method failed; nested exception java.lang.noclassdeffounderror:  io/netty/util/concurrent/eventexecutor 

no, spring data cassandra 1.4.x based on 2.x datastax's cassandra driver.

however, in spring data cassandra 1.5 (ingalls) release series (currently @ 1.5 m1), have upgraded datastax cassandra driver 3.0.3. have removed support datastax dse (datastax enterprise) driver since unnecessary sd cassandra functionality.

there significant changes in 3.0 version of datastax's java driver api requiring introduce 3.0 support in 1.5. not able port these changes without adversely affecting 1.4 users.

you can find out more reading our sd ingalls m1 release announcement.

also, can follow development of sd cassandra 1.5 on wiki.

feedback welcomed, either prs or through jira.