SchemaGenerationException when trying to run kundera example in eclipse

[Achal Shastry]

I am trying to run kundera example in eclipse using the following link

 https://github.com/impetus-opensource/Kundera/wiki/Getting-Started-in-5-minutes

As per the above website, I have installed cassendra in ubuntu. Its version is 2.2.7 and also added kundera as a maven dependency in eclipse. Its version is 3.4 and my JDK version is 1.7. 

I followed the same code from the above website. I am unable to run the code and unable to add the data from eclipse to cassandra database.I am getting SchemaGenerationException 

I am printing the console error which I am getting in eclipse. Please take a look at it and help me with the issue.

Exception in thread "main" com.impetus.kundera.configure.schema.SchemaGenerationException: org.apache.thrift.transport.TTransportException: Read a negative frame size (-2080374784)!

at com.impetus.client.cassandra.schemamanager.CassandraSchemaManager.create(CassandraSchemaManager.java:264)

at com.impetus.kundera.configure.schema.api.AbstractSchemaManager.handleOperations(AbstractSchemaManager.java:264)

at com.impetus.kundera.configure.schema.api.AbstractSchemaManager.exportSchema(AbstractSchemaManager.java:115)

at com.impetus.client.cassandra.schemamanager.CassandraSchemaManager.exportSchema(CassandraSchemaManager.java:166)

at com.impetus.kundera.configure.SchemaConfiguration.configure(SchemaConfiguration.java:191)

at com.impetus.kundera.configure.ClientMetadataBuilder.buildClientFactoryMetadata(ClientMetadataBuilder.java:48)

at com.impetus.kundera.persistence.EntityManagerFactoryImpl.configureClientFactories(EntityManagerFactoryImpl.java:408)

at com.impetus.kundera.persistence.EntityManagerFactoryImpl.configure(EntityManagerFactoryImpl.java:161)

at com.impetus.kundera.persistence.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:135)

at com.impetus.kundera.KunderaPersistence.createEntityManagerFactory(KunderaPersistence.java:85)

at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)

at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)

at com.zygnum.kundera.Main.main(Main.java:24)

Caused by: org.apache.thrift.transport.TTransportException: Read a negative frame size (-2080374784)!

at org.apache.thrift.transport.TFramedTransport.readFrame(TFramedTransport.java:133)

at org.apache.thrift.transport.TFramedTransport.read(TFramedTransport.java:101)

at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86)

at org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:429)

at org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:318)

at org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:219)

at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)

at org.apache.cassandra.thrift.Cassandra$Client.recv_system_add_keyspace(Cassandra.java:1580)

at org.apache.cassandra.thrift.Cassandra$Client.system_add_keyspace(Cassandra.java:1567)

at com.impetus.client.cassandra.schemamanager.CassandraSchemaManager.createKeyspace(CassandraSchemaManager.java:326)

at com.impetus.client.cassandra.schemamanager.CassandraSchemaManager.onCreateKeyspace(CassandraSchemaManager.java:294)

at com.impetus.client.cassandra.schemamanager.CassandraSchemaManager.createOrUpdateKeyspace(CassandraSchemaManager.java:278)

at com.impetus.client.cassandra.schemamanager.CassandraSchemaManager.create(CassandraSchemaManager.java:260)

... 12 more

Regards, 

Achal

[Devender Yadav]

Hi Achal,

Please share your persistence.xml and sample entity.

-Dev

[karthik prasad]

Hi Achal,

You should enable CQL3 as follows and try.

Map<String, String> props = new HashMap<>();

        props.put(CassandraConstants.CQL_VERSION, CassandraConstants.CQL_VERSION_3_0);

EntityManagerFactory emf = Persistence.createEntityManagerFactory("cassandra_pu", props);

-Karthik