org.apache.hadoop.hbase.regionserver.handler

类 UnassignRegionHandler

java.lang.Object

org.apache.hadoop.hbase.executor.EventHandler

org.apache.hadoop.hbase.regionserver.handler.UnassignRegionHandler

所有已实现的接口:

Comparable<Runnable>, Runnable

@InterfaceAudience.Private
public class UnassignRegionHandler
extends EventHandler

Handles closing of a region on a region server.

Just done the same thing with the old CloseRegionHandler, with some modifications on fencing and retrying. But we need to keep the CloseRegionHandler as is to keep compatible with the zk less assignment for 1.x, otherwise it is not possible to do rolling upgrade.

字段概要

从类继承的字段 org.apache.hadoop.hbase.executor.EventHandler

eventType, seqids, server, waitingTimeForEvents

构造器概要

构造器

构造器和说明
UnassignRegionHandler(HRegionServer server, String encodedName, long closeProcId, boolean abort, ServerName destination, EventType eventType)

方法概要

限定符和类型	方法和说明
static UnassignRegionHandler	create(HRegionServer server, String encodedName, long closeProcId, boolean abort, ServerName destination)
protected void	handleException(Throwable t) Event exception handler, may be overridden
void	process() This method is the main processing loop to be implemented by the various subclasses.

从类继承的方法 org.apache.hadoop.hbase.executor.EventHandler

compareTo, getEventType, getInformativeName, getPriority, getSeqid, prepare, run, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

UnassignRegionHandler

public UnassignRegionHandler(HRegionServer server,
                             String encodedName,
                             long closeProcId,
                             boolean abort,
                             @Nullable
                             ServerName destination,
                             EventType eventType)

方法详细资料

process

public void process()
             throws IOException

从类复制的说明: EventHandler

This method is the main processing loop to be implemented by the various subclasses.

指定者:

process 在类中 EventHandler

抛出:

IOException

handleException

protected void handleException(Throwable t)

从类复制的说明: EventHandler

Event exception handler, may be overridden

覆盖:

handleException 在类中 EventHandler

参数:

t - Throwable object

create

public static UnassignRegionHandler create(HRegionServer server,
                                           String encodedName,
                                           long closeProcId,
                                           boolean abort,
                                           @Nullable
                                           ServerName destination)