Spring data cassandra - error while opening new channel - spring-boot

Question

I have a problem with Cassandra's connection with spring-data. When Cassandra is running locally I have no problem with connecting, however when I ran my spring-boot app in k8s with external Cassandra I am stuck on WARN:
2020-07-24 10:26:32.398 WARN 6 --- [ s0-admin-0] c.d.o.d.internal.core.pool.ChannelPool : [s0|/127.0.0.1:9042] Error while opening new channel (ConnectionInitException: [s0|connecting...] Protocol initialization request, step 1 (STARTUP {CQL_VERSION=3.0.0, DRIVER_NAME=DataStax Java driver for Apache Cassandra(R), DRIVER_VERSION=4.7.2, CLIENT_ID=9679ee85-ff39-45b6-8573-62a8d827ec9e}): failed to send request (java.nio.channels.ClosedChannelException))
I don't understand why in the log I have [s0|/127.0.0.1:9042] instead of the IP of my contact points.
Spring configuration:
spring:
data:
cassandra:
keyspace-name: event_store
local-datacenter: datacenter1
contact-points: host1:9042,host2:9042
Also this WARN is not causing that spring-boot won't start however if I do query in service I have error:
{ error: "Query; CQL [com.datastax.oss.driver.internal.core.cql.DefaultSimpleStatement#9463dccc]; No node was available to execute the query; nested exception is com.datastax.oss.driver.api.core.NoNodeAvailableException: No node was available to execute the query" }

Answer 1

Option 1: test your yml file like this. (Have you tried with ip address?)
data:
cassandra:
keyspace-name: event_store
local-datacenter: datacenter1
port:9042
contact-points: host1,host2
username: cassandra
password: cassandra
Option 2: Create new properties on your yml and than a configuration class
cassandra:
database:
keyspace-name: event_store
contact-points: host1, host2
port: 9042
username: cassandra
password: cassandra
#Configuration
public class CassandraConfig extends AbstractCassandraConfiguration {
#Value("${cassandra.database.keyspace-name}")
private String keySpace;
#Value("${cassandra.database.contact-points}")
private String contactPoints;
#Value("${cassandra.database.port}")
private int port;
#Value("${cassandra.database.username}")
private String userName;
#Value("${cassandra.database.password}")
private String password;
#Override
protected String getKeyspaceName() {
return keySpace;
}
#Bean
public CassandraMappingContext cassandraMapping() throws ClassNotFoundException {
CassandraMappingContext context = new CassandraMappingContext();
context.setUserTypeResolver(new SimpleUserTypeResolver(cluster().getObject(), keySpace));
return context;
}
#Bean
public CassandraClusterFactoryBean cluster() {
CassandraClusterFactoryBean cluster = super.cluster();
cluster.setUsername(userName);
cluster.setPassword(password);
cluster.setContactPoints(contactPoints);
cluster.setPort(port);
return cluster;
}
#Override
protected boolean getMetricsEnabled() {
return false;
}
}