Error when launching the graph (DSEGraphFrame ) - scala

Question

I have a dse graph in validation/prod environement.
The problem occurs when I try to launch a DSEGraphFrame query using Spark in Scala.
val graph = spark.dseGraph("my_graph")
generates the following exception:
Exception in thread "main"
com.datastax.driver.core.exceptions.InvalidQueryException: The method
DseGraphRpc.getSchemaBlob does not exist. Make sure that the required
component for that method is active/enabled
at com.datastax.driver.core.exceptions.InvalidQueryException.copy(InvalidQueryException.java:40)
at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:26)
at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:284)
at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.datastax.spark.connector.cql.SessionProxy.invoke(SessionProxy.scala:37)
at com.sun.proxy.$Proxy27.execute(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.datastax.spark.connector.cql.SessionProxy.invoke(SessionProxy.scala:37)
at com.sun.proxy.$Proxy28.execute(Unknown Source)
at com.datastax.bdp.util.rpc.RpcUtil.callInternal(RpcUtil.java:57)
at com.datastax.bdp.util.rpc.RpcUtil.call(RpcUtil.java:40)
at com.datastax.bdp.graph.spark.DseGraphRpc.callGetSchema(DseGraphRpc.java:45)
at com.datastax.bdp.graph.spark.graphframe.DseGraphFrame$$anonfun$getSchemaFromServer$1.apply(DseGraphFrame.scala:586)
at com.datastax.bdp.graph.spark.graphframe.DseGraphFrame$$anonfun$getSchemaFromServer$1.apply(DseGraphFrame.scala:586)
at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withSessionDo$1.apply(CassandraConnector.scala:115)
at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withSessionDo$1.apply(CassandraConnector.scala:114)
at com.datastax.spark.connector.cql.CassandraConnector.closeResourceAfterUse(CassandraConnector.scala:158)
at com.datastax.spark.connector.cql.CassandraConnector.withSessionDo(CassandraConnector.scala:114)
at com.datastax.bdp.graph.spark.graphframe.DseGraphFrame$.getSchemaFromServer(DseGraphFrame.scala:586)
at com.datastax.bdp.graph.spark.graphframe.DseGraphFrameBuilder$.apply(DseGraphFrameBuilder.scala:257)
at com.datastax.bdp.graph.spark.graphframe.SparkSessionFunctions.dseGraph(SparkSessionFunctions.scala:20)
What could I do to run DSEGraphFrame properly?

Answer 1

The problem comes from a node in dse cluster wich the graph isn't activated