org.apache.hadoop.hbase.coordination

类 ZkCloseRegionCoordination

java.lang.Object

org.apache.hadoop.hbase.coordination.ZkCloseRegionCoordination

所有已实现的接口:

CloseRegionCoordination

@InterfaceAudience.Private
public class ZkCloseRegionCoordination
extends Object
implements CloseRegionCoordination

ZK-based implementation of CloseRegionCoordination.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	ZkCloseRegionCoordination.ZkCloseRegionDetails ZK-based implementation.

从接口继承的嵌套类/接口 org.apache.hadoop.hbase.coordination.CloseRegionCoordination

CloseRegionCoordination.CloseRegionDetails

构造器概要

构造器

构造器和说明
ZkCloseRegionCoordination(CoordinatedStateManager csm, ZooKeeperWatcher watcher)

方法概要

方法

限定符和类型	方法和说明
boolean	checkClosingState(HRegionInfo regionInfo, CloseRegionCoordination.CloseRegionDetails crd) In ZK-based version we're checking for bad znode state, e.g. if we're trying to delete the znode, and it's not ours (version doesn't match).
CloseRegionCoordination.CloseRegionDetails	getDetaultDetails() No ZK tracking will be performed for that case.
CloseRegionCoordination.CloseRegionDetails	parseFromProtoRequest(org.apache.hadoop.hbase.protobuf.generated.AdminProtos.CloseRegionRequest request) Parse ZK-related fields from request.
void	setClosedState(HRegion region, ServerName sn, CloseRegionCoordination.CloseRegionDetails crd) In ZK-based version we do some znodes transitioning.

从类继承的方法 java.lang.Object

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

构造器详细资料

ZkCloseRegionCoordination

public ZkCloseRegionCoordination(CoordinatedStateManager csm,
                         ZooKeeperWatcher watcher)

方法详细资料

checkClosingState

public boolean checkClosingState(HRegionInfo regionInfo,
                        CloseRegionCoordination.CloseRegionDetails crd)

In ZK-based version we're checking for bad znode state, e.g. if we're trying to delete the znode, and it's not ours (version doesn't match).

指定者:

checkClosingState 在接口中 CloseRegionCoordination

参数:

regionInfo - region being closed

crd - details about closing operation

返回:

true if caller shall proceed and close, false if need to abort closing.

setClosedState

public void setClosedState(HRegion region,
                  ServerName sn,
                  CloseRegionCoordination.CloseRegionDetails crd)

In ZK-based version we do some znodes transitioning.

指定者:

setClosedState 在接口中 CloseRegionCoordination

参数:

region - region being closed

sn - ServerName on which task runs

crd - details about closing operation

parseFromProtoRequest

public CloseRegionCoordination.CloseRegionDetails parseFromProtoRequest(org.apache.hadoop.hbase.protobuf.generated.AdminProtos.CloseRegionRequest request)

Parse ZK-related fields from request.

指定者:

parseFromProtoRequest 在接口中 CloseRegionCoordination

返回:

instance of CloseRegionDetails

getDetaultDetails

public CloseRegionCoordination.CloseRegionDetails getDetaultDetails()

No ZK tracking will be performed for that case. This method should be used when we want to construct CloseRegionDetails, but don't want any coordination on that (when it's initiated by regionserver), so no znode state transitions will be performed.

指定者:

getDetaultDetails 在接口中 CloseRegionCoordination