org.apache.hadoop.hbase.regionserver.handler

Class CloseRegionHandler

java.lang.Object

org.apache.hadoop.hbase.executor.EventHandler

org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler

All Implemented Interfaces:

Comparable<Runnable>, Runnable

Direct Known Subclasses:

CloseMetaHandler

@InterfaceAudience.Private
public class CloseRegionHandler
extends EventHandler

Handles closing of a region on a region server.

Now for regular close region request, we will use UnassignRegionHandler instead. But when shutting down the region server, will also close regions and the related methods still use this class so we keep it here.

See Also:

UnassignRegionHandler

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	abort
private ServerName	destination
private static org.slf4j.Logger	LOG
private RegionInfo	regionInfo
private RegionServerServices	rsServices

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

eventType, seqids, server, waitingTimeForEvents

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CloseRegionHandler(Server server, RegionServerServices rsServices, RegionInfo regionInfo, boolean abort, EventType eventType, ServerName destination)
	CloseRegionHandler(Server server, RegionServerServices rsServices, RegionInfo regionInfo, boolean abort, ServerName destination) This method used internally by the RegionServer to close out regions.

Method Summary

Modifier and Type	Method and Description
RegionInfo	getRegionInfo()
void	process() This method is the main processing loop to be implemented by the various subclasses.

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

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

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

rsServices

private final RegionServerServices rsServices

regionInfo

private final RegionInfo regionInfo

abort

private final boolean abort

destination

private ServerName destination

Constructor Detail

CloseRegionHandler

public CloseRegionHandler(Server server,
                          RegionServerServices rsServices,
                          RegionInfo regionInfo,
                          boolean abort,
                          ServerName destination)

This method used internally by the RegionServer to close out regions.

Parameters:

server -

rsServices -

regionInfo -

abort - If the regionserver is aborting.

destination -

CloseRegionHandler

protected CloseRegionHandler(Server server,
                             RegionServerServices rsServices,
                             RegionInfo regionInfo,
                             boolean abort,
                             EventType eventType,
                             ServerName destination)

Method Detail

getRegionInfo

public RegionInfo getRegionInfo()

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