Failed to persist object through ClusterJPA

[Lu Boying]

I tried to persist a simple object into MySQL cluster DB through ClusterJPA following the instructions at http://planet.mysql.com/entry/?id=24140

I got following error when trying to persist the object:
-connector-java-5.1.31 ( Revision: [e-mail]-20140520065950-groqzzbvxprqdmnz ).
Exception in thread "main" <openjpa-2.3.0-r422266:1540826 fatal store error> org.apache.openjpa.persistence.RollbackException: The transaction has been rolled back. See the nested exceptions for details on the errors that occurred.
at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:594)
at TestClusterJPA.main(TestClusterJPA.java:34)
Caused by: <openjpa-2.3.0-r422266:1540826 fatal general error> org.apache.openjpa.persistence.PersistenceException: The transaction has been rolled back. See the nested exceptions for details on the errors that occurred.
at org.apache.openjpa.kernel.BrokerImpl.newFlushException(BrokerImpl.java:2370)
at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2207)
at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2105)
at org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:2023)
at org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1528)
at org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:933)
at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:570)
... 1 more
Caused by: com.mysql.clusterj.ClusterJFatalInternalException: Operation partitionKeySetPart is not supported for non-key fields.
at com.mysql.clusterj.core.metadata.AbstractDomainFieldHandlerImpl$27.partitionKeySetPart(AbstractDomainFieldHandlerImpl.java:2387)
at com.mysql.clusterj.core.metadata.AbstractDomainFieldHandlerImpl.partitionKeySetPart(AbstractDomainFieldHandlerImpl.java:392)
at com.mysql.clusterj.openjpa.NdbOpenJPADomainTypeHandlerImpl.createPartitionKey(NdbOpenJPADomainTypeHandlerImpl.java:578)
at com.mysql.clusterj.core.SessionImpl.setPartitionKey(SessionImpl.java:264)
at com.mysql.clusterj.core.SessionImpl.insert(SessionImpl.java:428)
at com.mysql.clusterj.openjpa.NdbOpenJPAStoreManager.flush(NdbOpenJPAStoreManager.java:375)
at org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:131)

I use apache-openjpa 2.3.0 + mysql-connector-java-5.1.31.tar.gz
and here is the definition of my test class:
@Entity(name = "Project")
public class ProjectJPA {
private Long Id;
private String tenantOrg;
private int quotaGB;
private int quotaEnabled;

@Id
Long getId() {
return Id;
}

void setId(Long id) {
Id = id;
}

@Column(name="tenantOrg")
String getTenantOrg() {
return tenantOrg;
}

void setTenantOrg(String tenant) {
tenantOrg = tenant;
}

@Column(name="quotaGB")
int getQuotaGB() {
return quotaGB;
}

void setQuotaGB(int quota) {
quotaGB = quota;
}

@Column(name="quotaEnabled")
int getQuotaEnabled() {
return quotaEnabled;
}

void setQuotaEnabled(int enabled) {
quotaEnabled = enabled;
}

@Override
public String toString() {
StringBuilder builder = new StringBuilder("ProjectJPA:\n");
builder.append("Id=");
builder.append(getId());
builder.append("\n");

builder.append("tid=");
builder.append(getTenantOrg());
builder.append("\n");

builder.append("guotaGB=");
builder.append(getQuotaGB());
builder.append("\n");

builder.append("guotaEnabled=");
builder.append(getQuotaEnabled());
builder.append("\n");

return builder.toString();
}
}

Why I get this error and how can I set the log level so i can get more log info from ClusterJ?

Thanks a lot.