org.apache.hadoop.hbase.master.handler

Class ClosedRegionHandler

java.lang.Object

org.apache.hadoop.hbase.executor.EventHandler

org.apache.hadoop.hbase.master.handler.ClosedRegionHandler

All Implemented Interfaces:

Comparable<Runnable>, Runnable, TotesHRegionInfo

@InterfaceAudience.Private
public class ClosedRegionHandler
extends EventHandler
implements TotesHRegionInfo

Handles CLOSED region event on Master.

If table is being disabled, deletes ZK unassigned node and removes from regions in transition.

Otherwise, assigns the region to another server.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.executor.EventHandler

EventHandler.EventHandlerListener

Field Summary

Fields inherited from class org.apache.hadoop.hbase.executor.EventHandler

eventType, seqids, server, waitingTimeForEvents

Constructor Summary

Constructors

Constructor and Description
ClosedRegionHandler(Server server, AssignmentManager assignmentManager, HRegionInfo regionInfo)

Method Summary

Methods

Modifier and Type	Method and Description
HRegionInfo	getHRegionInfo()
int	getPriority() Get the priority level for this handler instance.
void	process() This method is the main processing loop to be implemented by the various subclasses.
String	toString()

Methods inherited from class org.apache.hadoop.hbase.executor.EventHandler

compareTo, getEventType, getInformativeName, getListener, getSeqid, handleException, prepare, run, setListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ClosedRegionHandler

public ClosedRegionHandler(Server server,
                   AssignmentManager assignmentManager,
                   HRegionInfo regionInfo)

Method Detail

getPriority

public int getPriority()

Description copied from class: EventHandler

Get the priority level for this handler instance. This uses natural ordering so lower numbers are higher priority.

Lowest priority is Integer.MAX_VALUE. Highest priority is 0.

Subclasses should override this method to allow prioritizing handlers.

Handlers with the same priority are handled in FIFO order.

Overrides:

getPriority in class EventHandler

Returns:

Integer.MAX_VALUE by default, override to set higher priorities

getHRegionInfo

public HRegionInfo getHRegionInfo()

Specified by:

getHRegionInfo in interface TotesHRegionInfo

Returns:

HRegionInfo instance.

toString

public String toString()

Overrides:

toString in class EventHandler

process

public void process()

Description copied from class: EventHandler

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

Specified by:

process in class EventHandler