org.rhq.cassandra.schema

Class VersionManager

java.lang.Object

org.rhq.cassandra.schema.AbstractManager

org.rhq.cassandra.schema.VersionManager

public class VersionManager
extends AbstractManager

Author:

Stefan Negrea

Field Summary

Fields inherited from class org.rhq.cassandra.schema.AbstractManager

nodes, password, session, username

Constructor Summary

Constructors

Constructor and Description
VersionManager(String username, String password, List<org.rhq.core.domain.cloud.StorageNode> nodes)

Method Summary

Methods

Modifier and Type	Method and Description
void	bootstrap() Before applying any schema, we need to create the rhqadmin user.
void	drop()
void	install()

Methods inherited from class org.rhq.cassandra.schema.AbstractManager

extractVersionFromUpdateFile, getReplicationFactor, getSchemaVersion, getSteps, getUpdateFiles, initCluster, initCluster, removeAppliedUpdates, schemaExists, shutdown

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VersionManager

public VersionManager(String username,
              String password,
              List<org.rhq.core.domain.cloud.StorageNode> nodes)

Method Detail

install

public void install()
             throws Exception

Throws:

Exception

bootstrap

public void bootstrap()

Before applying any schema, we need to create the rhqadmin user. If we have more than a single node cluster then we also need to set the RF of the system_auth keyspace BEFORE we create the rhqadmin user. If we do not do in this order we will get inconsistent reads which will can result in failed authentication.

drop

public void drop()
          throws Exception

Throws:

Exception