https://community.databricks.com/t5/data-engineering/unable-to-connect-to-azure-cosmos-db-cassandra-api-table-using/m-p/9615#M4952 <P>Getting below error:</P><PRE><CODE>Query [id = , runId = ] terminated with exception: Failed to open native connection to Cassandra at {&lt;name&gt;.cassandra.cosmosdb.azure.com:10350} :: Method com/microsoft/azure/cosmosdb/cassandra/CosmosDbConnectionFactory$.createSession(Lcom/datastax/spark/connector/cql/CassandraConnectorConf;)Lcom/datastax/oss/driver/api/core/CqlSession; is abstract Caused by: IOException: Failed to open native connection to Cassandra at {&lt;name&gt;.cassandra.cosmosdb.azure.com:10350} :: Method com/microsoft/azure/cosmosdb/cassandra/CosmosDbConnectionFactory$.createSession(Lcom/datastax/spark/connector/cql/CassandraConnectorConf;)Lcom/datastax/oss/driver/api/core/CqlSession; is abstract Caused by: AbstractMethodError: Method com/microsoft/azure/cosmosdb/cassandra/CosmosDbConnectionFactory$.createSession(Lcom/datastax/spark/connector/cql/CassandraConnectorConf;)Lcom/datastax/oss/driver/api/core/CqlSession; is abstract</CODE></PRE><P>What I did to get here:</P><UL><LI>create cosmos DB account</LI><LI>create cassandra keyspace</LI><LI>create cassandra table</LI><LI>create DBR job</LI><LI>added com.datastax.spark:spark-cassandra-connector-assembly_2.12:3.2.0 to the job cluster</LI><LI>added com.microsoft.azure.cosmosdb:azure-cosmos-cassandra-spark-helper:1.2.0 to the job cluster</LI></UL><P></P><P>What I tried:</P><UL><LI>different versions of connectors or azure cosmos db helper libraries, but some or the other ClassNotFoundExceptoins</LI></UL><P></P> Fri, 10 Feb 2023 05:36:56 GMT SS0201 2023-02-10T05:36:56Z https://community.databricks.com/t5/data-engineering/unable-to-connect-to-azure-cosmos-db-cassandra-api-table-using/m-p/9615#M4952 <P>Getting below error:</P><PRE><CODE>Query [id = , runId = ] terminated with exception: Failed to open native connection to Cassandra at {&lt;name&gt;.cassandra.cosmosdb.azure.com:10350} :: Method com/microsoft/azure/cosmosdb/cassandra/CosmosDbConnectionFactory$.createSession(Lcom/datastax/spark/connector/cql/CassandraConnectorConf;)Lcom/datastax/oss/driver/api/core/CqlSession; is abstract Caused by: IOException: Failed to open native connection to Cassandra at {&lt;name&gt;.cassandra.cosmosdb.azure.com:10350} :: Method com/microsoft/azure/cosmosdb/cassandra/CosmosDbConnectionFactory$.createSession(Lcom/datastax/spark/connector/cql/CassandraConnectorConf;)Lcom/datastax/oss/driver/api/core/CqlSession; is abstract Caused by: AbstractMethodError: Method com/microsoft/azure/cosmosdb/cassandra/CosmosDbConnectionFactory$.createSession(Lcom/datastax/spark/connector/cql/CassandraConnectorConf;)Lcom/datastax/oss/driver/api/core/CqlSession; is abstract</CODE></PRE><P>What I did to get here:</P><UL><LI>create cosmos DB account</LI><LI>create cassandra keyspace</LI><LI>create cassandra table</LI><LI>create DBR job</LI><LI>added com.datastax.spark:spark-cassandra-connector-assembly_2.12:3.2.0 to the job cluster</LI><LI>added com.microsoft.azure.cosmosdb:azure-cosmos-cassandra-spark-helper:1.2.0 to the job cluster</LI></UL><P></P><P>What I tried:</P><UL><LI>different versions of connectors or azure cosmos db helper libraries, but some or the other ClassNotFoundExceptoins</LI></UL><P></P> Fri, 10 Feb 2023 05:36:56 GMT https://community.databricks.com/t5/data-engineering/unable-to-connect-to-azure-cosmos-db-cassandra-api-table-using/m-p/9615#M4952 SS0201 2023-02-10T05:36:56Z https://community.databricks.com/t5/data-engineering/unable-to-connect-to-azure-cosmos-db-cassandra-api-table-using/m-p/9616#M4953 <P>Hi, The error looks like there is an issue connecting to csms-ws-ddicsg-dev-001.cassandra.cosmosdb.azure.com:10350. Could you please reverify this in networking config? Also, it will be helpful if you raise an Azure case simultaneously to check the network. </P> Mon, 13 Feb 2023 05:00:50 GMT https://community.databricks.com/t5/data-engineering/unable-to-connect-to-azure-cosmos-db-cassandra-api-table-using/m-p/9616#M4953 Debayan 2023-02-13T05:00:50Z