org.apache.hadoop.hbase.regionserver

Class HRegionServer

java.lang.Object

java.lang.Thread

org.apache.hadoop.hbase.HBaseServerBase<RSRpcServices>

org.apache.hadoop.hbase.regionserver.HRegionServer

All Implemented Interfaces:

Runnable, Abortable, ConnectionRegistryEndpoint, ConfigurationObserver, FavoredNodesForRegion, LastSequenceId, MutableOnlineRegions, OnlineRegions, RegionServerServices, Server, Stoppable

@InterfaceAudience.LimitedPrivate(value="Tools")
public class HRegionServer
extends HBaseServerBase<RSRpcServices>
implements RegionServerServices, LastSequenceId

HRegionServer makes a set of HRegions available to clients. It checks in with the HMaster. There are many HRegionServers in a single HBase deployment.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.regionserver.RegionServerServices

RegionServerServices.PostOpenDeployContext, RegionServerServices.RegionStateTransitionContext

Field Summary

Fields

Modifier and Type	Field and Description
static String	REGIONSERVER region server process name
static boolean	TEST_SKIP_REPORTING_TRANSITION For testing only! Set to true to skip notifying region assignment to master .

Fields inherited from class org.apache.hadoop.hbase.HBaseServerBase

abortRequested, asyncClusterConnection, choreService, clusterStatusTracker, conf, configurationManager, csm, dataFs, dataRootDir, eventLoopGroupConfig, executorService, infoServer, metaRegionLocationCache, msgInterval, namedQueueRecorder, rpcServices, serverName, sleeper, startcode, stopped, tableDescriptors, userProvider, useThisHostnameInstead, walFs, walRootDir, zooKeeper

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
HRegionServer(org.apache.hadoop.conf.Configuration conf) Starts a HRegionServer at the default location.

Method Summary

Modifier and Type	Method and Description
void	abort(String reason, Throwable cause) Cause the server to exit without closing the regions it is serving, the log it is using and without notifying the master.
void	addRegion(HRegion region) Add to online regions.
protected boolean	cacheTableDescriptor()
protected boolean	canCreateBaseZNode()
protected boolean	canUpdateTableDescriptor()
protected boolean	closeRegion(String encodedName, boolean abort, ServerName destination) Close asynchronously a region, can be called from the master or internally by the regionserver when stopping.
protected boolean	clusterMode()
protected void	configureInfoServer(InfoServer infoServer)
protected NamedQueueRecorder	createNamedQueueRecord()
org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionLoad	createRegionLoad(String encodedRegionName)
protected ServerName	createRegionServerStatusStub(boolean refresh) Get the current master from ZooKeeper and open the RPC connection to it.
protected RSRpcServices	createRpcServices()
void	dumpRowLocks(PrintWriter out) Used by RSDumpServlet to generate debugging information.
void	finishRegionProcedure(long procId) See submitRegionProcedure(long).
Optional<ServerName>	getActiveMaster() Get active master address.
List<ServerName>	getBackupMasters() Get backup masters address.
Optional<BlockCache>	getBlockCache() May be null if this is a master which not carry table.
Iterator<ServerName>	getBootstrapNodes() Get a iterator of the available bootstrap nodes.
BrokenStoreFileCleaner	getBrokenStoreFileCleaner()
String	getClusterId() Get cluster id.
CompactedHFilesDischarger	getCompactedHFilesDischarger()
double	getCompactionPressure()
CompactionRequester	getCompactionRequestor()
CompactSplit	getCompactSplitThread()
protected Class<? extends javax.servlet.http.HttpServlet>	getDumpServlet()
InetSocketAddress[]	getFavoredNodesForRegion(String encodedRegionName) Return the favored nodes for a region given its encoded name.
double	getFlushPressure()
FlushRequester	getFlushRequester()
ThroughputController	getFlushThroughputController()
HeapMemoryManager	getHeapMemoryManager()
org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionStoreSequenceIds	getLastSequenceId(byte[] encodedRegionName)
LeaseManager	getLeaseManager()
MasterAddressTracker	getMasterAddressTracker()
MemStoreFlusher	getMemStoreFlusher()
List<HRegionLocation>	getMetaLocations() Get the location of meta regions.
MetricsRegionServer	getMetrics()
Optional<MobFileCache>	getMobFileCache() May be null if this is a master which not carry table.
org.apache.hadoop.hbase.regionserver.HRegionServer.MovedRegionInfo	getMovedRegion(String encodedRegionName)
ServerNonceManager	getNonceManager() Only required for "old" log replay; if it's removed, remove this.
int	getNumberOfOnlineRegions()
HRegion	getOnlineRegion(byte[] regionName)
protected Map<String,HRegion>	getOnlineRegions()
Collection<HRegion>	getOnlineRegionsLocalContext() For tests, web ui and metrics.
Set<TableName>	getOnlineTables() Gets the online tables in this RS.
protected String	getProcessName()
protected HRegion	getRegion(byte[] regionName) Protected Utility method for safely obtaining an HRegion handle.
HRegion	getRegion(String encodedRegionName) Return Region instance.
HRegion	getRegionByEncodedName(String encodedRegionName)
RegionReplicationBufferManager	getRegionReplicationBufferManager()
List<HRegion>	getRegions() Get all online regions in this RS.
List<HRegion>	getRegions(TableName tableName) Gets the online regions of the specified table.
RegionServerAccounting	getRegionServerAccounting()
RegionServerCoprocessorHost	getRegionServerCoprocessorHost()
String[]	getRegionServerCoprocessors()
RegionServerRpcQuotaManager	getRegionServerRpcQuotaManager()
RegionServerSpaceQuotaManager	getRegionServerSpaceQuotaManager()
ConcurrentMap<byte[],Boolean>	getRegionsInTransitionInRS() Get the regions that are currently being opened or closed in the RS
ReplicationSinkService	getReplicationSinkService()
ReplicationSourceService	getReplicationSourceService()
long	getRetryPauseTime() Return pause time configured in HConstants.HBASE_RPC_SHORTOPERATION_RETRY_PAUSE_TIME}
RSRpcServices	getRSRpcServices()
SecureBulkLoadManager	getSecureBulkLoadManager()
protected String	getUseThisHostnameInstead(org.apache.hadoop.conf.Configuration conf)
WAL	getWAL(RegionInfo regionInfo)
Map<String,ReplicationStatus>	getWalGroupsReplicationStatus()
LogRoller	getWalRoller()
List<WAL>	getWALs()
protected void	handleReportForDutyResponse(org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionServerStartupResponse c) Run init.
boolean	isClusterUp()
boolean	isOnline() Report the status of the server.
protected void	kill()
protected void	login(UserProvider user, String host)
static void	main(String[] args)
int	movedRegionCacheExpiredTime()
void	onConfigurationChange(org.apache.hadoop.conf.Configuration newConf)
void	postOpenDeployTasks(RegionServerServices.PostOpenDeployContext context) Tasks to perform after region open to complete deploy of region on regionserver
EntityLock	regionLock(List<RegionInfo> regionInfo, String description, Abortable abort) Master based locks on namespaces/tables/regions.
boolean	registerService(org.apache.hbase.thirdparty.com.google.protobuf.Service instance) Registers a new protocol buffer Service subclass as a coprocessor endpoint to be available for handling
void	remoteProcedureComplete(long procId, Throwable error)
boolean	removeRegion(HRegion r, ServerName destination) Removes the given Region from the list of onlineRegions.
boolean	reportFileArchivalForQuotas(TableName tableName, Collection<Map.Entry<String,Long>> archivedFiles) Reports a collection of files, and their sizes, that belonged to the given table were just moved to the archive directory.
boolean	reportRegionSizesForQuotas(RegionSizeStore regionSizeStore) Reports the given map of Regions and their size on the filesystem to the active Master.
boolean	reportRegionStateTransition(RegionServerServices.RegionStateTransitionContext context) Notify master that a handler requests to change a region state
void	run() The HRegionServer sticks in this loop until closed.
void	stop(String msg)
void	stop(String msg, boolean force, User user) Stops the regionserver.
protected void	stopChores()
protected void	stopServiceThreads() Wait on all threads to finish.
protected void	tryRegionServerReport(long reportStartTime, long reportEndTime)
void	unassign(byte[] regionName) Unassign the given region from the current regionserver and assign it randomly.
void	updateRegionFavoredNodesMapping(String encodedRegionName, List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName> favoredNodes) Used to update the favored nodes mapping when required.
void	waitForServerOnline()
boolean	walRollRequestFinished() For testing

Methods inherited from class org.apache.hadoop.hbase.HBaseServerBase

closeClusterConnection, closeTableDescriptors, closeZooKeeper, createConnection, getAccessChecker, getAsyncClusterConnection, getChoreService, getConfiguration, getCoordinatedStateManager, getDataRootDir, getEventLoopGroupConfig, getExecutorService, getFileSystem, getInfoServer, getMetaRegionLocationCache, getMsgInterval, getNamedQueueRecorder, getRpcServer, getRpcServices, getServerName, getStartcode, getTableDescriptors, getWALFileSystem, getWALRootDir, getZKPermissionWatcher, getZooKeeper, initializeFileSystem, initializeMemStoreChunkCreator, installShutdownHook, isAborted, isShutdownHookInstalled, isStopped, setAbortRequested, setupClusterConnection, shutdownChore, stopChoreService, stopExecutorService, stopInfoServer, toString, updateConfiguration

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, yield

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.regionserver.RegionServerServices

getAccessChecker, getExecutorService, getRpcServer, getTableDescriptors, getZKPermissionWatcher

Methods inherited from interface org.apache.hadoop.hbase.Server

createConnection, getAsyncClusterConnection, getAsyncConnection, getChoreService, getConfiguration, getConnection, getCoordinatedStateManager, getFileSystem, getServerName, getZooKeeper, isStopping

Methods inherited from interface org.apache.hadoop.hbase.Abortable

abort, isAborted

Methods inherited from interface org.apache.hadoop.hbase.Stoppable

isStopped

Field Detail

TEST_SKIP_REPORTING_TRANSITION

@InterfaceAudience.Private
public static boolean TEST_SKIP_REPORTING_TRANSITION

For testing only! Set to true to skip notifying region assignment to master .

REGIONSERVER

public static final String REGIONSERVER

region server process name

See Also:

Constant Field Values

Constructor Detail

HRegionServer

public HRegionServer(org.apache.hadoop.conf.Configuration conf)
              throws IOException

Starts a HRegionServer at the default location.

Don't start any services or managers in here in the Constructor. Defer till after we register with the Master as much as possible. See startServices().

Throws:

IOException

Method Detail

getUseThisHostnameInstead

protected String getUseThisHostnameInstead(org.apache.hadoop.conf.Configuration conf)
                                    throws IOException

Specified by:

getUseThisHostnameInstead in class HBaseServerBase<RSRpcServices>

Throws:

IOException

login

protected void login(UserProvider user,
                     String host)
              throws IOException

Specified by:

login in class HBaseServerBase<RSRpcServices>

Throws:

IOException

getProcessName

protected String getProcessName()

Specified by:

getProcessName in class HBaseServerBase<RSRpcServices>

canCreateBaseZNode

protected boolean canCreateBaseZNode()

Specified by:

canCreateBaseZNode in class HBaseServerBase<RSRpcServices>

canUpdateTableDescriptor

protected boolean canUpdateTableDescriptor()

Specified by:

canUpdateTableDescriptor in class HBaseServerBase<RSRpcServices>

cacheTableDescriptor

protected boolean cacheTableDescriptor()

Specified by:

cacheTableDescriptor in class HBaseServerBase<RSRpcServices>

createRpcServices

protected RSRpcServices createRpcServices()
                                   throws IOException

Specified by:

createRpcServices in class HBaseServerBase<RSRpcServices>

Throws:

IOException

configureInfoServer

protected void configureInfoServer(InfoServer infoServer)

Specified by:

configureInfoServer in class HBaseServerBase<RSRpcServices>

getDumpServlet

protected Class<? extends javax.servlet.http.HttpServlet> getDumpServlet()

Specified by:

getDumpServlet in class HBaseServerBase<RSRpcServices>

dumpRowLocks

public void dumpRowLocks(PrintWriter out)

Used by RSDumpServlet to generate debugging information.

registerService

public boolean registerService(org.apache.hbase.thirdparty.com.google.protobuf.Service instance)

Description copied from interface: RegionServerServices

Registers a new protocol buffer Service subclass as a coprocessor endpoint to be available for handling

Specified by:

registerService in interface RegionServerServices

Parameters:

instance - the Service subclass instance to expose as a coprocessor endpoint

Returns:

true if the registration was successful, false

getClusterId

public String getClusterId()

Description copied from interface: ConnectionRegistryEndpoint

Get cluster id.

Specified by:

getClusterId in interface ConnectionRegistryEndpoint

isClusterUp

public boolean isClusterUp()

Specified by:

isClusterUp in interface RegionServerServices

Overrides:

isClusterUp in class HBaseServerBase<RSRpcServices>

Returns:

True if the cluster is up.

run

public void run()

The HRegionServer sticks in this loop until closed.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

tryRegionServerReport

@InterfaceAudience.Private
protected void tryRegionServerReport(long reportStartTime,
                                                                long reportEndTime)
                                                         throws IOException

Throws:

IOException

reportRegionSizesForQuotas

public boolean reportRegionSizesForQuotas(RegionSizeStore regionSizeStore)

Reports the given map of Regions and their size on the filesystem to the active Master.

Specified by:

reportRegionSizesForQuotas in interface RegionServerServices

Parameters:

regionSizeStore - The store containing region sizes

Returns:

false if FileSystemUtilizationChore should pause reporting to master. true otherwise

handleReportForDutyResponse

protected void handleReportForDutyResponse(org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionServerStartupResponse c)
                                    throws IOException

Run init. Sets up wal and starts up all server threads.

Parameters:

c - Extra configuration.

Throws:

IOException

getRegionServerAccounting

public RegionServerAccounting getRegionServerAccounting()

Specified by:

getRegionServerAccounting in interface RegionServerServices

Returns:

the RegionServerAccounting for this Region Server

createRegionLoad

public org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionLoad createRegionLoad(String encodedRegionName)
                                                                                                  throws IOException

Throws:

IOException

isOnline

public boolean isOnline()

Report the status of the server. A server is online once all the startup is completed (setting up filesystem, starting executorService threads, etc.). This method is designed mostly to be useful in tests.

Returns:

true if online, false if not.

getMasterAddressTracker

public MasterAddressTracker getMasterAddressTracker()

Returns:

Master address tracker instance.

getWALs

public List<WAL> getWALs()

Specified by:

getWALs in interface RegionServerServices

Returns:

the List of WALs that are used by this server Doesn't include the meta WAL

getWAL

public WAL getWAL(RegionInfo regionInfo)
           throws IOException

Specified by:

getWAL in interface RegionServerServices

Returns:

the WAL for a particular region. Pass null for getting the default (common) WAL

Throws:

IOException

getWalRoller

public LogRoller getWalRoller()

stop

public void stop(String msg)

Specified by:

stop in interface Stoppable

stop

public void stop(String msg,
                 boolean force,
                 User user)

Stops the regionserver.

Parameters:

msg - Status message

force - True if this is a regionserver abort

user - The user executing the stop request, or null if no user is associated

waitForServerOnline

public void waitForServerOnline()

postOpenDeployTasks

public void postOpenDeployTasks(RegionServerServices.PostOpenDeployContext context)
                         throws IOException

Description copied from interface: RegionServerServices

Tasks to perform after region open to complete deploy of region on regionserver

Specified by:

postOpenDeployTasks in interface RegionServerServices

Parameters:

context - the context

Throws:

IOException

reportRegionStateTransition

public boolean reportRegionStateTransition(RegionServerServices.RegionStateTransitionContext context)

Description copied from interface: RegionServerServices

Notify master that a handler requests to change a region state

Specified by:

reportRegionStateTransition in interface RegionServerServices

getRSRpcServices

@InterfaceAudience.Private
public RSRpcServices getRSRpcServices()

abort

public void abort(String reason,
                  Throwable cause)

Cause the server to exit without closing the regions it is serving, the log it is using and without notifying the master. Used unit testing and on catastrophic events such as HDFS is yanked out from under hbase or we OOME. n * the reason we are aborting n * the exception that caused the abort, or null

Specified by:

abort in interface Abortable

kill

@InterfaceAudience.Private
protected void kill()

stopServiceThreads

protected void stopServiceThreads()

Wait on all threads to finish. Presumption is that all closes and stops have already been called.

getReplicationSourceService

public ReplicationSourceService getReplicationSourceService()

Specified by:

getReplicationSourceService in interface RegionServerServices

Returns:

Return the object that implements the replication source executorService.

getReplicationSinkService

public ReplicationSinkService getReplicationSinkService()

Returns:

Return the object that implements the replication sink executorService.

createRegionServerStatusStub

@InterfaceAudience.Private
protected ServerName createRegionServerStatusStub(boolean refresh)

Get the current master from ZooKeeper and open the RPC connection to it. To get a fresh connection, the current rssStub must be null. Method will block until a master is available. You can break from this block by requesting the server stop.

Parameters:

refresh - If true then master address will be read from ZK, otherwise use cached data

Returns:

master + port, or null if server has been stopped

getLastSequenceId

public org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionStoreSequenceIds getLastSequenceId(byte[] encodedRegionName)

Specified by:

getLastSequenceId in interface LastSequenceId

Parameters:

encodedRegionName - Encoded region name

Returns:

Last flushed sequence Id for region and its stores. Id will be -1 if it can't be determined

getOnlineRegions

protected Map<String,HRegion> getOnlineRegions()

getNumberOfOnlineRegions

public int getNumberOfOnlineRegions()

getOnlineRegionsLocalContext

public Collection<HRegion> getOnlineRegionsLocalContext()

For tests, web ui and metrics. This method will only work if HRegionServer is in the same JVM as client; HRegion cannot be serialized to cross an rpc.

addRegion

public void addRegion(HRegion region)

Description copied from interface: MutableOnlineRegions

Add to online regions. n

Specified by:

addRegion in interface MutableOnlineRegions

getFlushRequester

public FlushRequester getFlushRequester()

Specified by:

getFlushRequester in interface RegionServerServices

Returns:

reference to FlushRequester

getCompactionRequestor

public CompactionRequester getCompactionRequestor()

Specified by:

getCompactionRequestor in interface RegionServerServices

Returns:

Implementation of CompactionRequester or null. Usually it will not be null unless during intialization.

getLeaseManager

public LeaseManager getLeaseManager()

Specified by:

getLeaseManager in interface RegionServerServices

Returns:

The RegionServer's "Leases" service

getRegionServerCoprocessorHost

public RegionServerCoprocessorHost getRegionServerCoprocessorHost()

getRegionsInTransitionInRS

public ConcurrentMap<byte[],Boolean> getRegionsInTransitionInRS()

Description copied from interface: RegionServerServices

Get the regions that are currently being opened or closed in the RS

Specified by:

getRegionsInTransitionInRS in interface RegionServerServices

Returns:

map of regions in transition in this RS

getRegionServerRpcQuotaManager

public RegionServerRpcQuotaManager getRegionServerRpcQuotaManager()

Specified by:

getRegionServerRpcQuotaManager in interface RegionServerServices

Returns:

RegionServer's instance of RegionServerRpcQuotaManager

getWalGroupsReplicationStatus

public Map<String,ReplicationStatus> getWalGroupsReplicationStatus()

main

public static void main(String[] args)

See Also:

HRegionServerCommandLine

getRegions

public List<HRegion> getRegions(TableName tableName)

Gets the online regions of the specified table. This method looks at the in-memory onlineRegions. It does not go to hbase:meta. Only returns online regions. If a region on this table has been closed during a disable, etc., it will not be included in the returned list. So, the returned list may not necessarily be ALL regions in this table, its all the ONLINE regions in the table.

Specified by:

getRegions in interface OnlineRegions

Specified by:

getRegions in interface RegionServerServices

Parameters:

tableName - table to limit the scope of the query

Returns:

Online regions from tableName

getRegions

public List<HRegion> getRegions()

Description copied from interface: OnlineRegions

Get all online regions in this RS.

Specified by:

getRegions in interface OnlineRegions

Specified by:

getRegions in interface RegionServerServices

Returns:

List of online Region

getOnlineTables

public Set<TableName> getOnlineTables()

Gets the online tables in this RS. This method looks at the in-memory onlineRegions.

Returns:

all the online tables in this RS

getRegionServerCoprocessors

public String[] getRegionServerCoprocessors()

closeRegion

protected boolean closeRegion(String encodedName,
                              boolean abort,
                              ServerName destination)
                       throws NotServingRegionException

Close asynchronously a region, can be called from the master or internally by the regionserver when stopping. If called from the master, the region will update the status.

If an opening was in progress, this method will cancel it, but will not start a new close. The coprocessors are not called in this case. A NotServingRegionException exception is thrown.

If a close was in progress, this new request will be ignored, and an exception thrown.

Parameters:

encodedName - Region to close

abort - True if we are aborting

destination - Where the Region is being moved too... maybe null if unknown.

Returns:

True if closed a region.

Throws:

NotServingRegionException - if the region is not online

getOnlineRegion

public HRegion getOnlineRegion(byte[] regionName)

Returns:

HRegion for the passed binary regionName or null if named region is not member of the online regions.

getRegion

public HRegion getRegion(String encodedRegionName)

Description copied from interface: OnlineRegions

Return Region instance. Only works if caller is in same context, in same JVM. Region is not serializable. n * @return Region for the passed encoded encodedRegionName or null if named region is not member of the online regions.

Specified by:

getRegion in interface OnlineRegions

Specified by:

getRegion in interface RegionServerServices

removeRegion

public boolean removeRegion(HRegion r,
                            ServerName destination)

Description copied from interface: MutableOnlineRegions

Removes the given Region from the list of onlineRegions.

Specified by:

removeRegion in interface MutableOnlineRegions

Parameters:

r - Region to remove.

destination - Destination, if any, null otherwise.

Returns:

True if we removed a region from online list.

getRegion

protected HRegion getRegion(byte[] regionName)
                     throws NotServingRegionException

Protected Utility method for safely obtaining an HRegion handle.

Parameters:

regionName - Name of online HRegion to return

Returns:

HRegion for regionName

Throws:

NotServingRegionException

getRegionByEncodedName

public HRegion getRegionByEncodedName(String encodedRegionName)
                               throws NotServingRegionException

Throws:

NotServingRegionException

updateRegionFavoredNodesMapping

public void updateRegionFavoredNodesMapping(String encodedRegionName,
                                            List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName> favoredNodes)

Description copied from interface: FavoredNodesForRegion

Used to update the favored nodes mapping when required. nn

Specified by:

updateRegionFavoredNodesMapping in interface FavoredNodesForRegion

getFavoredNodesForRegion

public InetSocketAddress[] getFavoredNodesForRegion(String encodedRegionName)

Return the favored nodes for a region given its encoded name. Look at the comment around regionFavoredNodesMap on why we convert to InetSocketAddress[] here.

Specified by:

getFavoredNodesForRegion in interface FavoredNodesForRegion

Parameters:

encodedRegionName - the encoded region name.

Returns:

array of favored locations

getNonceManager

public ServerNonceManager getNonceManager()

Description copied from interface: RegionServerServices

Only required for "old" log replay; if it's removed, remove this.

Specified by:

getNonceManager in interface RegionServerServices

Returns:

The RegionServer's NonceManager

getMovedRegion

@InterfaceAudience.Private
public org.apache.hadoop.hbase.regionserver.HRegionServer.MovedRegionInfo getMovedRegion(String encodedRegionName)

movedRegionCacheExpiredTime

@InterfaceAudience.Private
public int movedRegionCacheExpiredTime()

getCompactSplitThread

public CompactSplit getCompactSplitThread()

Returns:

the underlying CompactSplit for the servers

getBlockCache

public Optional<BlockCache> getBlockCache()

May be null if this is a master which not carry table.

Specified by:

getBlockCache in interface RegionServerServices

Returns:

The block cache instance used by the regionserver.

getMobFileCache

public Optional<MobFileCache> getMobFileCache()

May be null if this is a master which not carry table.

Specified by:

getMobFileCache in interface RegionServerServices

Returns:

The cache for mob files used by the regionserver.

getCompactionPressure

public double getCompactionPressure()

Specified by:

getCompactionPressure in interface RegionServerServices

Returns:

the max compaction pressure of all stores on this regionserver. The value should be greater than or equal to 0.0, and any value greater than 1.0 means we enter the emergency state that some stores have too many store files.

See Also:

Store.getCompactionPressure()

getHeapMemoryManager

public HeapMemoryManager getHeapMemoryManager()

Specified by:

getHeapMemoryManager in interface RegionServerServices

Returns:

heap memory manager instance

getMemStoreFlusher

public MemStoreFlusher getMemStoreFlusher()

walRollRequestFinished

@InterfaceAudience.Private
public boolean walRollRequestFinished()

For testing

Returns:

whether all wal roll request finished for this regionserver

getFlushThroughputController

public ThroughputController getFlushThroughputController()

Specified by:

getFlushThroughputController in interface RegionServerServices

Returns:

the controller to avoid flush too fast

getFlushPressure

public double getFlushPressure()

Specified by:

getFlushPressure in interface RegionServerServices

Returns:

the flush pressure of all stores on this regionserver. The value should be greater than or equal to 0.0, and any value greater than 1.0 means we enter the emergency state that global memstore size already exceeds lower limit.

onConfigurationChange

public void onConfigurationChange(org.apache.hadoop.conf.Configuration newConf)

Specified by:

onConfigurationChange in interface ConfigurationObserver

getMetrics

public MetricsRegionServer getMetrics()

Specified by:

getMetrics in interface RegionServerServices

Returns:

the metrics tracker for the region server

getSecureBulkLoadManager

public SecureBulkLoadManager getSecureBulkLoadManager()

Specified by:

getSecureBulkLoadManager in interface RegionServerServices

Returns:

RegionServer's instance of SecureBulkLoadManager

regionLock

public EntityLock regionLock(List<RegionInfo> regionInfo,
                             String description,
                             Abortable abort)

Description copied from interface: RegionServerServices

Master based locks on namespaces/tables/regions.

Specified by:

regionLock in interface RegionServerServices

unassign

public void unassign(byte[] regionName)
              throws IOException

Description copied from interface: RegionServerServices

Unassign the given region from the current regionserver and assign it randomly. Could still be assigned to us. This is used to solve some tough problems for which you need to reset the state of a region. For example, if you hit FileNotFound exception and want to refresh the store file list.

See HBASE-17712 for more details.

Specified by:

unassign in interface RegionServerServices

Throws:

IOException

getRegionServerSpaceQuotaManager

public RegionServerSpaceQuotaManager getRegionServerSpaceQuotaManager()

Specified by:

getRegionServerSpaceQuotaManager in interface RegionServerServices

Returns:

RegionServer's instance of RegionServerSpaceQuotaManager

reportFileArchivalForQuotas

public boolean reportFileArchivalForQuotas(TableName tableName,
                                           Collection<Map.Entry<String,Long>> archivedFiles)

Description copied from interface: RegionServerServices

Reports a collection of files, and their sizes, that belonged to the given table were just moved to the archive directory.

Specified by:

reportFileArchivalForQuotas in interface RegionServerServices

Parameters:

tableName - The name of the table that files previously belonged to

archivedFiles - Files and their sizes that were moved to archive

Returns:

true if the files were successfully reported, false otherwise.

remoteProcedureComplete

public void remoteProcedureComplete(long procId,
                                    Throwable error)

finishRegionProcedure

public void finishRegionProcedure(long procId)

See submitRegionProcedure(long).

Parameters:

procId - the id of the open/close region procedure

getCompactedHFilesDischarger

@InterfaceAudience.Private
public CompactedHFilesDischarger getCompactedHFilesDischarger()

getRetryPauseTime

@InterfaceAudience.Private
public long getRetryPauseTime()

Return pause time configured in HConstants.HBASE_RPC_SHORTOPERATION_RETRY_PAUSE_TIME}

Returns:

pause time

getActiveMaster

public Optional<ServerName> getActiveMaster()

Description copied from interface: ConnectionRegistryEndpoint

Get active master address.

Specified by:

getActiveMaster in interface ConnectionRegistryEndpoint

getBackupMasters

public List<ServerName> getBackupMasters()

Description copied from interface: ConnectionRegistryEndpoint

Get backup masters address.

Specified by:

getBackupMasters in interface ConnectionRegistryEndpoint

getBootstrapNodes

public Iterator<ServerName> getBootstrapNodes()

Description copied from interface: ConnectionRegistryEndpoint

Get a iterator of the available bootstrap nodes.

Specified by:

getBootstrapNodes in interface ConnectionRegistryEndpoint

getMetaLocations

public List<HRegionLocation> getMetaLocations()

Description copied from interface: ConnectionRegistryEndpoint

Get the location of meta regions.

Specified by:

getMetaLocations in interface ConnectionRegistryEndpoint

createNamedQueueRecord

protected NamedQueueRecorder createNamedQueueRecord()

Specified by:

createNamedQueueRecord in class HBaseServerBase<RSRpcServices>

clusterMode

protected boolean clusterMode()

Specified by:

clusterMode in class HBaseServerBase<RSRpcServices>

getBrokenStoreFileCleaner

@InterfaceAudience.Private
public BrokenStoreFileCleaner getBrokenStoreFileCleaner()

stopChores

protected void stopChores()

Specified by:

stopChores in class HBaseServerBase<RSRpcServices>

getRegionReplicationBufferManager

public RegionReplicationBufferManager getRegionReplicationBufferManager()

Specified by:

getRegionReplicationBufferManager in interface RegionServerServices