https://community.databricks.com/t5/data-engineering/cassandra-connection-from-adb/m-p/23577#M16299 <P>Hi , Could anyone please help to know the steps for connecting Cassandra from Azure Databricks? I have followed the steps in <A href="https://learn.microsoft.com/en-us/azure/databricks/_static/notebooks/azure/cassandra-azure.html" target="test_blank">https://learn.microsoft.com/en-us/azure/databricks/_static/notebooks/azure/cassandra-azure.html</A> But I am getting below error. </P><P></P><P><I>IOException: Failed to open native connection to Cassandra at {&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;} :: Could not reach any contact point, make sure you've provided valid addresses (showing first 1 nodes, use getAllErrors() for more): Node(endPoint=/&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;, hostId=null, hashCode=5079251a): [com.datastax.oss.driver.api.core.auth.AuthenticationException: Authentication error on node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;: Node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt; requires authentication (com.datastax.bdp.cassandra.auth.DseAuthenticator), but no authenticator configured]</I></P><P><I>Caused by: AllNodesFailedException: Could not reach any contact point, make sure you've provided valid addresses (showing first 1 nodes, use getAllErrors() for more): Node(endPoint=/&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;, hostId=null, hashCode=5079251a): [com.datastax.oss.driver.api.core.auth.AuthenticationException: Authentication error on node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;: Node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt; requires authentication (com.datastax.bdp.cassandra.auth.DseAuthenticator), but no authenticator configured]</I></P><P></P><P>Thank You,</P><P>DSR</P> Fri, 04 Nov 2022 20:29:11 GMT Dinu2 2022-11-04T20:29:11Z https://community.databricks.com/t5/data-engineering/cassandra-connection-from-adb/m-p/23577#M16299 <P>Hi , Could anyone please help to know the steps for connecting Cassandra from Azure Databricks? I have followed the steps in <A href="https://learn.microsoft.com/en-us/azure/databricks/_static/notebooks/azure/cassandra-azure.html" target="test_blank">https://learn.microsoft.com/en-us/azure/databricks/_static/notebooks/azure/cassandra-azure.html</A> But I am getting below error. </P><P></P><P><I>IOException: Failed to open native connection to Cassandra at {&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;} :: Could not reach any contact point, make sure you've provided valid addresses (showing first 1 nodes, use getAllErrors() for more): Node(endPoint=/&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;, hostId=null, hashCode=5079251a): [com.datastax.oss.driver.api.core.auth.AuthenticationException: Authentication error on node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;: Node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt; requires authentication (com.datastax.bdp.cassandra.auth.DseAuthenticator), but no authenticator configured]</I></P><P><I>Caused by: AllNodesFailedException: Could not reach any contact point, make sure you've provided valid addresses (showing first 1 nodes, use getAllErrors() for more): Node(endPoint=/&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;, hostId=null, hashCode=5079251a): [com.datastax.oss.driver.api.core.auth.AuthenticationException: Authentication error on node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt;: Node /&lt;&lt;hostname&gt;&gt;:&lt;&lt;portno&gt;&gt; requires authentication (com.datastax.bdp.cassandra.auth.DseAuthenticator), but no authenticator configured]</I></P><P></P><P>Thank You,</P><P>DSR</P> Fri, 04 Nov 2022 20:29:11 GMT https://community.databricks.com/t5/data-engineering/cassandra-connection-from-adb/m-p/23577#M16299 Dinu2 2022-11-04T20:29:11Z