org.apache.hadoop.hbase.regionserver.handler

类 AssignRegionHandler

java.lang.Object

org.apache.hadoop.hbase.executor.EventHandler

org.apache.hadoop.hbase.regionserver.handler.AssignRegionHandler

所有已实现的接口:

Comparable<Runnable>, Runnable

@InterfaceAudience.Private
public class AssignRegionHandler
extends EventHandler

Handles opening of a region on a region server.

Just done the same thing with the old OpenRegionHandler, with some modifications on fencing and retrying. But we need to keep the OpenRegionHandler 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
AssignRegionHandler(HRegionServer server, RegionInfo regionInfo, long openProcId, TableDescriptor tableDesc, long masterSystemTime, EventType eventType)

方法概要

限定符和类型	方法和说明
static AssignRegionHandler	create(HRegionServer server, RegionInfo regionInfo, long openProcId, TableDescriptor tableDesc, long masterSystemTime)
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

AssignRegionHandler

public AssignRegionHandler(HRegionServer server,
                           RegionInfo regionInfo,
                           long openProcId,
                           @Nullable
                           TableDescriptor tableDesc,
                           long masterSystemTime,
                           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 AssignRegionHandler create(HRegionServer server,
                                         RegionInfo regionInfo,
                                         long openProcId,
                                         TableDescriptor tableDesc,
                                         long masterSystemTime)