JanusGraph
Cassandra 4 support
There are no stable Cassandra 4 releases yet. Right now the latest release is cassandra-4.0-beta4.
That said, I didn't check Cassandra 4 beta compatibility with JanusGraph yet.
Apache Cassandra 3.0 is supported until 6 months after 4.0 release (date TBD)
I think it's better to start preparing till it's out
Cassandra 4 has just been released that supports Java 11
Can JanusGraph 0.6.0 be released with Cassandra 4 support?
It would make sense since both should be able to run on Java 11
@farodin91 @FlorianHockmann do you think it's possible to upgrade Cassandra to 4.x knowing that Thrift was removed from 4.x version but we use it in CqlBinaryInputFormat for Hadoop?
import org.apache.cassandra.thrift.SlicePredicate;
import org.apache.cassandra.thrift.SliceRange;
It should work without Thrift. @pluradj tried that out with our PR #1436 with Cassandra that had Thrift disabled completely. So, I think that this should also work with Cassandra 4, but we should definitely test that. I guess these types were still in the Thrift package but we don't actually use the Thrift protocol only because we use these types.
We will however need to replace these types with something else when we update our cassandra.version to 4 as the thrift package was removed completely in that version.
