Trouble connecting to Cassandra pod CQL server from Gremlin console

[jelom...@gmail.com]

Hello Everyone! 

I have an instance of Cassandra running on Kubernetes (using the Bitnami Helm chart: https://github.com/bitnami/charts/tree/master/bitnami/cassandra.) 

I can connect to the CQL server from within the pod:

`kubectl exec -it cassandra-0 -- bash`

`I have no name!@cassandra-0: cqlsh -u <username> -p <password> `

Output: 

Connected to cassandra at 127.0.0.1:9042.

[cqlsh 5.0.1 | Cassandra 3.11.6 | CQL spec 3.4.4 | Native protocol v4]

Use HELP for help.

I have also connected to the CQL from another pod, so the external connection definitely works.

But when I try to connect via my Janusgraph instance (version 0.5.1), from the gremlin console, I get the following time-out error:

`kubectl exec -it janusgraph-deployment-766b5f9899-h2kqt -- bin/gremlin.sh`

gremlin> graph = JanusGraphFactory.open('/etc/opt/janusgraph/janusgraph.properties')

Output:

com.datastax.driver.core.exceptions.OperationTimedOutException: [cassandra.cassandra.svc.cluster.local/10.98.210.3:9042] Timed out waiting for server response

Below is the configuration in the janusgraph.properties file

gremlin.graph=org.janusgraph.core.JanusGraphFactory

storage.backend=cql

storage.directory=/var/lib/janusgraph/data

index.search.backend=lucene

index.search.directory=/var/lib/janusgraph/index

storage.username=<username>

storage.cql.keyspace=lucene

storage.password=<password>

index.search.directroy=/data/searchindex

storage.hostname=cassandra.cassandra.svc.cluster.local

I have also triied using the 'cassandra' service IP address in the `storage.hostname` field, but I get the same error.

I am using a simple lucene indexing back-end for now while I try to get the storage backend configured, but the idea is to eventually use elasticsearch with full SSL encryption. But I first want to get the storage backend configured. 

Any ideas regarding the time-out error? I feel like i'm just missing something small,,,