Package org.apache.accumulo.tserver

Class TabletServer

java.lang.Object

org.apache.accumulo.server.AbstractServer

org.apache.accumulo.tserver.TabletServer

All Implemented Interfaces:

AutoCloseable, Runnable

public class TabletServer
extends AbstractServer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	TabletServer.AssignmentHandler

Field Summary

Fields

Modifier and Type	Field	Description
static AtomicLong	seekCount

Method Summary

Modifier and Type	Method	Description
void	addNewLogMarker(DfsLogger copy)
int	createLogId()
void	enqueueMasterMessage(MasterMessage m)
void	executeSplit(Tablet tablet)
String	getClientAddressString()
VolumeManager	getFileSystem()
double	getHoldTimeMillis()
String	getInstanceID()
ZooLock	getLock()
RateLimiter	getMajorCompactionReadLimiter()	Get the RateLimiter for reads during major compactions on this tserver.
RateLimiter	getMajorCompactionWriteLimiter()	Get the RateLimiter for writes during major compactions on this tserver.
TabletServerMinCMetrics	getMinCMetrics()
Tablet	getOnlineTablet(KeyExtent extent)
SortedMap<KeyExtent,Tablet>	getOnlineTablets()
int	getOpeningCount()
TabletServerScanMetrics	getScanMetrics()
SecurityOperation	getSecurityOperation()
DfsLogger.ServerResources	getServerConfig()
Session	getSession(long sessionId)
TabletServerStatus	getStats(Map<TableId,MapCounter<ScanRunState>> scanCounts)
TableConfiguration	getTableConfiguration(KeyExtent extent)
TServerInstance	getTabletSession()
long	getTotalMinorCompactions()
int	getUnopenedCount()
String	getVersion()
static void	main(String[] args)
void	minorCompactionFinished(CommitSession tablet, long walogSeq)
void	minorCompactionStarted(CommitSession tablet, long lastUpdateSequence, String newMapfileLocation)
void	recover(VolumeManager fs, KeyExtent extent, List<LogEntry> logEntries, Set<String> tabletFiles, MutationReceiver mutationReceiver)
void	removeBulkImportState(List<String> files)
void	run()
void	updateBulkImportState(List<String> files, BulkImportState state)
long	updateTotalQueuedMutationSize(long additionalMutationSize)
static Pair<org.apache.hadoop.io.Text,KeyExtent>	verifyTabletInformation(ServerContext context, KeyExtent extent, TServerInstance instance, SortedMap<Key,Value> tabletsKeyValues, String clientAddress, ZooLock lock)
void	walogClosed(DfsLogger currentLog)

Methods inherited from class org.apache.accumulo.server.AbstractServer

close, getConfiguration, getContext, getHostname, getMetricsSystem, runServer

Methods inherited from class java.lang.Object

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

Field Detail

seekCount

public static final AtomicLong seekCount

Method Detail

getScanMetrics

public TabletServerScanMetrics getScanMetrics()

getMinCMetrics

public TabletServerMinCMetrics getMinCMetrics()

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

getInstanceID

public String getInstanceID()

getVersion

public String getVersion()

updateTotalQueuedMutationSize

public long updateTotalQueuedMutationSize(long additionalMutationSize)

getSession

public Session getSession(long sessionId)

executeSplit

public void executeSplit(Tablet tablet)

enqueueMasterMessage

public void enqueueMasterMessage(MasterMessage m)

getLock

public ZooLock getLock()

run

public void run()

verifyTabletInformation

public static Pair<org.apache.hadoop.io.Text,KeyExtent> verifyTabletInformation(ServerContext context,
                                                                                      KeyExtent extent,
                                                                                      TServerInstance instance,
                                                                                      SortedMap<Key,Value> tabletsKeyValues,
                                                                                      String clientAddress,
                                                                                      ZooLock lock)
                                                                               throws DistributedStoreException,
                                                                                      AccumuloException

Throws:

DistributedStoreException

AccumuloException

getClientAddressString

public String getClientAddressString()

getTabletSession

public TServerInstance getTabletSession()

getStats

public TabletServerStatus getStats(Map<TableId,MapCounter<ScanRunState>> scanCounts)

minorCompactionFinished

public void minorCompactionFinished(CommitSession tablet,
                                    long walogSeq)
                             throws IOException

Throws:

IOException

minorCompactionStarted

public void minorCompactionStarted(CommitSession tablet,
                                   long lastUpdateSequence,
                                   String newMapfileLocation)
                            throws IOException

Throws:

IOException

recover

public void recover(VolumeManager fs,
                    KeyExtent extent,
                    List<LogEntry> logEntries,
                    Set<String> tabletFiles,
                    MutationReceiver mutationReceiver)
             throws IOException

Throws:

IOException

createLogId

public int createLogId()

getTableConfiguration

public TableConfiguration getTableConfiguration(KeyExtent extent)

getServerConfig

public DfsLogger.ServerResources getServerConfig()

getOnlineTablets

public SortedMap<KeyExtent,Tablet> getOnlineTablets()

getOnlineTablet

public Tablet getOnlineTablet(KeyExtent extent)

getFileSystem

public VolumeManager getFileSystem()

getOpeningCount

public int getOpeningCount()

getUnopenedCount

public int getUnopenedCount()

getTotalMinorCompactions

public long getTotalMinorCompactions()

getHoldTimeMillis

public double getHoldTimeMillis()

getSecurityOperation

public SecurityOperation getSecurityOperation()

addNewLogMarker

public void addNewLogMarker(DfsLogger copy)
                     throws WalStateManager.WalMarkerException

Throws:

WalStateManager.WalMarkerException

walogClosed

public void walogClosed(DfsLogger currentLog)
                 throws WalStateManager.WalMarkerException

Throws:

WalStateManager.WalMarkerException

updateBulkImportState

public void updateBulkImportState(List<String> files,
                                  BulkImportState state)

removeBulkImportState

public void removeBulkImportState(List<String> files)

getMajorCompactionReadLimiter

public final RateLimiter getMajorCompactionReadLimiter()

Get the RateLimiter for reads during major compactions on this tserver. All writes performed during major compactions are throttled to conform to this RateLimiter.

getMajorCompactionWriteLimiter

public final RateLimiter getMajorCompactionWriteLimiter()

Get the RateLimiter for writes during major compactions on this tserver. All reads performed during major compactions are throttled to conform to this RateLimiter.