org.apache.hadoop.hbase.master

Class MirroringTableStateManager

java.lang.Object

org.apache.hadoop.hbase.master.TableStateManager

org.apache.hadoop.hbase.master.MirroringTableStateManager

Deprecated.

Since 2.0.0. To be removed in 3.0.0.

@Deprecated
 @InterfaceAudience.Private
public class MirroringTableStateManager
extends TableStateManager

A subclass of TableStateManager that mirrors change in state out to zookeeper for hbase-1.x clients to pick up; hbase-1.x clients read table state of zookeeper rather than from hbase:meta as hbase-2.x clients do. Set "hbase.mirror.table.state.to.zookeeper" to false to disable mirroring. See in HMaster where we make the choice. The below does zk updates on a best-effort basis only. If we fail updating zk we keep going because only hbase1 clients suffer; we'll just log at WARN level.

Field Summary

Fields

Modifier and Type	Field and Description
private static org.slf4j.Logger	LOG Deprecated.
(package private) static String	MIRROR_TABLE_STATE_TO_ZK_KEY Deprecated. Set this key to true in Configuration to enable mirroring of table state out to zookeeper so hbase-1.x clients can pick-up table state.

Fields inherited from class org.apache.hadoop.hbase.master.TableStateManager

master

Constructor Summary

Constructors

Constructor and Description
MirroringTableStateManager(MasterServices master) Deprecated.

Method Summary

Modifier and Type	Method and Description
protected void	fixTableState(TableState tableState) Deprecated. For subclasses in case they want to do fixup post hbase:meta.
protected void	metaStateDeleted(TableName tableName) Deprecated.
protected void	metaStateUpdated(TableName tableName, TableState.State newState) Deprecated.
private void	updateZooKeeper(TableState tableState) Deprecated.

Methods inherited from class org.apache.hadoop.hbase.master.TableStateManager

deleteZooKeeper, getTablesInStates, getTableState, isTablePresent, isTableState, setDeletedTable, setTableState, start

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

Deprecated.

MIRROR_TABLE_STATE_TO_ZK_KEY

static final String MIRROR_TABLE_STATE_TO_ZK_KEY

Deprecated.

Set this key to true in Configuration to enable mirroring of table state out to zookeeper so hbase-1.x clients can pick-up table state.

See Also:

Constant Field Values

Constructor Detail

MirroringTableStateManager

public MirroringTableStateManager(MasterServices master)

Deprecated.

Method Detail

metaStateUpdated

protected void metaStateUpdated(TableName tableName,
                                TableState.State newState)
                         throws IOException

Deprecated.

Overrides:

metaStateUpdated in class TableStateManager

Throws:

IOException

metaStateDeleted

protected void metaStateDeleted(TableName tableName)
                         throws IOException

Deprecated.

Overrides:

metaStateDeleted in class TableStateManager

Throws:

IOException

updateZooKeeper

private void updateZooKeeper(TableState tableState)
                      throws IOException

Deprecated.

Throws:

IOException

fixTableState

protected void fixTableState(TableState tableState)
                      throws IOException

Deprecated.

Description copied from class: TableStateManager

For subclasses in case they want to do fixup post hbase:meta.

Overrides:

fixTableState in class TableStateManager

Throws:

IOException