org.apache.hadoop.hbase.master.procedure

Class DeleteNamespaceProcedure

java.lang.Object

<any>

org.apache.hadoop.hbase.master.procedure.AbstractStateMachineNamespaceProcedure<DeleteNamespaceState>

org.apache.hadoop.hbase.master.procedure.DeleteNamespaceProcedure

All Implemented Interfaces:

TableProcedureInterface

public class DeleteNamespaceProcedure
extends AbstractStateMachineNamespaceProcedure<DeleteNamespaceState>

The procedure to remove a namespace.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.master.procedure.TableProcedureInterface

TableProcedureInterface.TableOperationType

Constructor Summary

Constructors

Constructor and Description
DeleteNamespaceProcedure()
DeleteNamespaceProcedure(MasterProcedureEnv env, java.lang.String namespaceName)
DeleteNamespaceProcedure(MasterProcedureEnv env, java.lang.String namespaceName, ProcedurePrepareLatch latch)

Method Summary

Modifier and Type	Method and Description
protected static void	deleteDirectory(MasterProcedureEnv env, java.lang.String namespaceName) Delete the namespace directories from the file system
protected static void	deleteFromNSTable(MasterProcedureEnv env, java.lang.String namespaceName) delete the row from namespace table
protected void	deserializeStateData(ProcedureStateSerializer serializer)
protected Flow	executeFromState(MasterProcedureEnv env, DeleteNamespaceState state)
protected DeleteNamespaceState	getInitialState()
protected java.lang.String	getNamespaceName()
protected DeleteNamespaceState	getState(int stateId)
protected int	getStateId(DeleteNamespaceState state)
TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected boolean	isRollbackSupported(DeleteNamespaceState state)
protected static void	removeFromZKNamespaceManager(MasterProcedureEnv env, java.lang.String namespaceName) remove from ZooKeeper.
protected static void	removeNamespaceQuota(MasterProcedureEnv env, java.lang.String namespaceName) remove quota for the namespace
protected void	rollbackState(MasterProcedureEnv env, DeleteNamespaceState state)
protected void	serializeStateData(ProcedureStateSerializer serializer)

Methods inherited from class org.apache.hadoop.hbase.master.procedure.AbstractStateMachineNamespaceProcedure

acquireLock, getTableName, releaseLock, releaseSyncLatch, toStringClassDetails

Methods inherited from class java.lang.Object

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

Constructor Detail

DeleteNamespaceProcedure

public DeleteNamespaceProcedure()

DeleteNamespaceProcedure

public DeleteNamespaceProcedure(MasterProcedureEnv env,
                                java.lang.String namespaceName)

DeleteNamespaceProcedure

public DeleteNamespaceProcedure(MasterProcedureEnv env,
                                java.lang.String namespaceName,
                                ProcedurePrepareLatch latch)

Method Detail

executeFromState

protected Flow executeFromState(MasterProcedureEnv env,
                                DeleteNamespaceState state)
                         throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

rollbackState

protected void rollbackState(MasterProcedureEnv env,
                             DeleteNamespaceState state)
                      throws java.io.IOException

Throws:

java.io.IOException

isRollbackSupported

protected boolean isRollbackSupported(DeleteNamespaceState state)

getState

protected DeleteNamespaceState getState(int stateId)

getStateId

protected int getStateId(DeleteNamespaceState state)

getInitialState

protected DeleteNamespaceState getInitialState()

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws java.io.IOException

Throws:

java.io.IOException

deserializeStateData

protected void deserializeStateData(ProcedureStateSerializer serializer)
                             throws java.io.IOException

Throws:

java.io.IOException

getTableOperationType

public TableProcedureInterface.TableOperationType getTableOperationType()

Description copied from interface: TableProcedureInterface

Given an operation type we can take decisions about what to do with pending operations. e.g. if we get a delete and we have some table operation pending (e.g. add column) we can abort those operations.

Specified by:

getTableOperationType in interface TableProcedureInterface

Specified by:

getTableOperationType in class AbstractStateMachineNamespaceProcedure<DeleteNamespaceState>

Returns:

the operation type that the procedure is executing.

getNamespaceName

protected java.lang.String getNamespaceName()

Specified by:

getNamespaceName in class AbstractStateMachineNamespaceProcedure<DeleteNamespaceState>

deleteFromNSTable

protected static void deleteFromNSTable(MasterProcedureEnv env,
                                        java.lang.String namespaceName)
                                 throws java.io.IOException

delete the row from namespace table

Parameters:

env - MasterProcedureEnv

namespaceName - name of the namespace in string format

Throws:

java.io.IOException

removeFromZKNamespaceManager

protected static void removeFromZKNamespaceManager(MasterProcedureEnv env,
                                                   java.lang.String namespaceName)
                                            throws java.io.IOException

remove from ZooKeeper.

Parameters:

env - MasterProcedureEnv

namespaceName - name of the namespace in string format

Throws:

java.io.IOException

deleteDirectory

protected static void deleteDirectory(MasterProcedureEnv env,
                                      java.lang.String namespaceName)
                               throws java.io.IOException

Delete the namespace directories from the file system

Parameters:

env - MasterProcedureEnv

namespaceName - name of the namespace in string format

Throws:

java.io.IOException

removeNamespaceQuota

protected static void removeNamespaceQuota(MasterProcedureEnv env,
                                           java.lang.String namespaceName)
                                    throws java.io.IOException

remove quota for the namespace

Parameters:

env - MasterProcedureEnv

namespaceName - name of the namespace in string format

Throws:

java.io.IOException