Uses of Interface
org.apache.hadoop.hbase.wal.WAL

Packages that use WAL

Package	Description
org.apache.hadoop.hbase.coprocessor	Table of Contents
org.apache.hadoop.hbase.master.region
org.apache.hadoop.hbase.regionserver
org.apache.hadoop.hbase.regionserver.wal
org.apache.hadoop.hbase.wal

Uses of WAL in org.apache.hadoop.hbase.coprocessor

Methods in org.apache.hadoop.hbase.coprocessor that return WAL

Modifier and Type	Method and Description
WAL	WALCoprocessorEnvironment.getWAL() Returns reference to the region server's WAL

Uses of WAL in org.apache.hadoop.hbase.master.region

Methods in org.apache.hadoop.hbase.master.region that return WAL

Modifier and Type	Method and Description
private static WAL	MasterRegion.createWAL(WALFactory walFactory, MasterRegionWALRoller walRoller, String serverName, org.apache.hadoop.fs.FileSystem walFs, org.apache.hadoop.fs.Path walRootDir, RegionInfo regionInfo)

Uses of WAL in org.apache.hadoop.hbase.regionserver

Fields in org.apache.hadoop.hbase.regionserver declared as WAL

Modifier and Type	Field and Description
private WAL	HRegion.wal

Methods in org.apache.hadoop.hbase.regionserver that return WAL

Modifier and Type	Method and Description
WAL	RegionServicesForStores.getWAL()
WAL	HRegion.getWAL() Returns WAL in use for this region
WAL	RegionServerServices.getWAL(RegionInfo regionInfo) Returns the WAL for a particular region.
WAL	HRegionServer.getWAL(RegionInfo regionInfo)

Methods in org.apache.hadoop.hbase.regionserver that return types with arguments of type WAL

Modifier and Type	Method and Description
(package private) Map<WAL,AbstractWALRoller.RollController>	LogRoller.getWalNeedsRoll()
List<WAL>	RegionServerServices.getWALs() Returns the List of WALs that are used by this server Doesn't include the meta WAL
List<WAL>	HRegionServer.getWALs()

Methods in org.apache.hadoop.hbase.regionserver with parameters of type WAL

Modifier and Type	Method and Description
static HRegion	HRegion.createHRegion(RegionInfo info, org.apache.hadoop.fs.Path rootDir, org.apache.hadoop.conf.Configuration conf, TableDescriptor hTableDescriptor, WAL wal)
static HRegion	HRegion.createHRegion(RegionInfo info, org.apache.hadoop.fs.Path rootDir, org.apache.hadoop.conf.Configuration conf, TableDescriptor hTableDescriptor, WAL wal, boolean initialize) Convenience method creating new HRegions.
static HRegion	HRegion.createHRegion(RegionInfo info, org.apache.hadoop.fs.Path rootDir, org.apache.hadoop.conf.Configuration conf, TableDescriptor hTableDescriptor, WAL wal, boolean initialize, RegionServerServices rsRpcServices) Convenience method creating new HRegions.
private void	HRegion.doAbortFlushToWAL(WAL wal, long flushOpSeqId, Map<byte[],List<org.apache.hadoop.fs.Path>> committedFiles)
private static void	HRegion.doSyncOfUnflushedWALChanges(WAL wal, RegionInfo hri) Sync unflushed WAL changes.
protected long	HRegion.getNextSequenceId(WAL wal) Method to safely get the next sequence number.
protected HRegion.FlushResultImpl	HRegion.internalFlushcache(WAL wal, long myseqid, Collection<HStore> storesToFlush, MonitoredTask status, boolean writeFlushWalMarker, FlushLifeCycleTracker tracker) Flush the memstore.
(package private) HRegion.FlushResultImpl	HRegion.internalFlushCacheAndCommit(WAL wal, MonitoredTask status, HRegion.PrepareFlushResult prepareResult, Collection<HStore> storesToFlush)
protected HRegion.PrepareFlushResult	HRegion.internalPrepareFlushCache(WAL wal, long myseqid, Collection<HStore> storesToFlush, MonitoredTask status, boolean writeFlushWalMarker, FlushLifeCycleTracker tracker)
static HRegion	HRegion.newHRegion(org.apache.hadoop.fs.Path tableDir, WAL wal, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.conf.Configuration conf, RegionInfo regionInfo, TableDescriptor htd, RegionServerServices rsServices) A utility method to create new instances of HRegion based on the HConstants.REGION_IMPL configuration property.
static HRegion	HRegion.openHRegion(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path rootDir, RegionInfo info, TableDescriptor htd, WAL wal) Open a Region.
static HRegion	HRegion.openHRegion(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path rootDir, RegionInfo info, TableDescriptor htd, WAL wal, RegionServerServices rsServices, CancelableProgressable reporter) Open a Region.
static HRegion	HRegion.openHRegion(org.apache.hadoop.fs.Path rootDir, RegionInfo info, TableDescriptor htd, WAL wal, org.apache.hadoop.conf.Configuration conf) Open a Region.
static HRegion	HRegion.openHRegion(org.apache.hadoop.fs.Path rootDir, RegionInfo info, TableDescriptor htd, WAL wal, org.apache.hadoop.conf.Configuration conf, RegionServerServices rsServices, CancelableProgressable reporter) Open a Region.
static HRegion	HRegion.openHRegion(RegionInfo info, TableDescriptor htd, WAL wal, org.apache.hadoop.conf.Configuration conf) Open a Region.
static HRegion	HRegion.openHRegion(RegionInfo info, TableDescriptor htd, WAL wal, org.apache.hadoop.conf.Configuration conf, RegionServerServices rsServices, CancelableProgressable reporter) Open a Region.
static HRegion	HRegion.openHRegionFromTableDir(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path tableDir, RegionInfo info, TableDescriptor htd, WAL wal, RegionServerServices rsServices, CancelableProgressable reporter) Open a Region.
static void	HRegion.warmupHRegion(RegionInfo info, TableDescriptor htd, WAL wal, org.apache.hadoop.conf.Configuration conf, RegionServerServices rsServices, CancelableProgressable reporter)
private boolean	HRegion.writeFlushRequestMarkerToWAL(WAL wal, boolean writeFlushWalMarker) Writes a marker to WAL indicating a flush is requested but cannot be complete due to various reasons.
private void	HRegion.writeRegionCloseMarker(WAL wal)
protected void	HRegion.writeRegionOpenMarker(WAL wal, long openSeqId)

Constructors in org.apache.hadoop.hbase.regionserver with parameters of type WAL

Constructor and Description
HRegion(HRegionFileSystem fs, WAL wal, org.apache.hadoop.conf.Configuration confParam, TableDescriptor htd, RegionServerServices rsServices) HRegion constructor.
HRegion(org.apache.hadoop.fs.Path tableDir, WAL wal, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.conf.Configuration confParam, RegionInfo regionInfo, TableDescriptor htd, RegionServerServices rsServices) Deprecated. Use other constructors.

Uses of WAL in org.apache.hadoop.hbase.regionserver.wal

Classes in org.apache.hadoop.hbase.regionserver.wal that implement WAL

Modifier and Type	Class and Description
class	AbstractFSWAL<W extends WALProvider.WriterBase> Implementation of WAL to go against FileSystem; i.e.
class	AsyncFSWAL An asynchronous implementation of FSWAL.
class	FSHLog The original implementation of FSWAL.

Fields in org.apache.hadoop.hbase.regionserver.wal declared as WAL

Modifier and Type	Field and Description
private WAL	WALCoprocessorHost.wal
private WAL	WALCoprocessorHost.WALEnvironment.wal

Methods in org.apache.hadoop.hbase.regionserver.wal that return WAL

Modifier and Type	Method and Description
WAL	WALCoprocessorHost.WALEnvironment.getWAL()

Methods in org.apache.hadoop.hbase.regionserver.wal with parameters of type WAL

Modifier and Type	Method and Description
private static WALKeyImpl	WALUtil.doFullMarkerAppendTransaction(WAL wal, NavigableMap<byte[],Integer> replicationScope, RegionInfo hri, WALEdit edit, MultiVersionConcurrencyControl mvcc, Map<String,byte[]> extendedAttributes, boolean sync) A 'full' WAL transaction involves starting an mvcc transaction followed by an append, an optional sync, and then a call to complete the mvcc transaction.
static WALKeyImpl	WALUtil.writeBulkLoadMarkerAndSync(WAL wal, NavigableMap<byte[],Integer> replicationScope, RegionInfo hri, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.BulkLoadDescriptor desc, MultiVersionConcurrencyControl mvcc) Write a log marker that a bulk load has succeeded and is about to be committed.
static WALKeyImpl	WALUtil.writeCompactionMarker(WAL wal, NavigableMap<byte[],Integer> replicationScope, RegionInfo hri, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor c, MultiVersionConcurrencyControl mvcc) Write the marker that a compaction has succeeded and is about to be committed.
static WALKeyImpl	WALUtil.writeFlushMarker(WAL wal, NavigableMap<byte[],Integer> replicationScope, RegionInfo hri, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor f, boolean sync, MultiVersionConcurrencyControl mvcc) Write a flush marker indicating a start / abort or a complete of a region flush This write is for internal use only.
private static WALKeyImpl	WALUtil.writeMarker(WAL wal, NavigableMap<byte[],Integer> replicationScope, RegionInfo hri, WALEdit edit, MultiVersionConcurrencyControl mvcc, Map<String,byte[]> extendedAttributes)
static WALKeyImpl	WALUtil.writeRegionEventMarker(WAL wal, NavigableMap<byte[],Integer> replicationScope, RegionInfo hri, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor r, MultiVersionConcurrencyControl mvcc) Write a region open marker indicating that the region is opened.

Constructors in org.apache.hadoop.hbase.regionserver.wal with parameters of type WAL

Constructor and Description
WALCoprocessorHost(WAL log, org.apache.hadoop.conf.Configuration conf) Constructor
WALEnvironment(WALCoprocessor impl, int priority, int seq, org.apache.hadoop.conf.Configuration conf, WAL wal) Constructor

Uses of WAL in org.apache.hadoop.hbase.wal

Classes in org.apache.hadoop.hbase.wal that implement WAL

Modifier and Type	Class and Description
private static class	DisabledWALProvider.DisabledWAL

Fields in org.apache.hadoop.hbase.wal declared as WAL

Modifier and Type	Field and Description
(package private) WAL	DisabledWALProvider.disabled
private WAL	AbstractWALRoller.RollController.wal

Fields in org.apache.hadoop.hbase.wal with type parameters of type WAL

Modifier and Type	Field and Description
protected ConcurrentMap<WAL,AbstractWALRoller.RollController>	AbstractWALRoller.wals

Methods in org.apache.hadoop.hbase.wal that return WAL

Modifier and Type	Method and Description
WAL	WALFactory.getWAL(RegionInfo region)
WAL	RegionGroupingProvider.getWAL(RegionInfo region)
WAL	WALProvider.getWAL(RegionInfo region)
WAL	DisabledWALProvider.getWAL(RegionInfo region)
private WAL	RegionGroupingProvider.getWAL(String group)

Methods in org.apache.hadoop.hbase.wal that return types with arguments of type WAL

Modifier and Type	Method and Description
List<WAL>	WALFactory.getWALs()
List<WAL>	RegionGroupingProvider.getWALs()
List<WAL>	WALProvider.getWALs() Returns the List of WALs that are used by this server
List<WAL>	DisabledWALProvider.getWALs()
List<WAL>	AbstractFSWALProvider.getWALs()

Methods in org.apache.hadoop.hbase.wal with parameters of type WAL

Modifier and Type	Method and Description
void	AbstractWALRoller.addWAL(WAL wal)
static long	AbstractFSWALProvider.extractFileNumFromWAL(WAL wal) It returns the file create timestamp from the file name.
static org.apache.hadoop.fs.Path	AbstractFSWALProvider.getCurrentFileName(WAL wal) return the current filename from the current wal.
static long	AbstractFSWALProvider.getLogFileSize(WAL wal) returns the size of rolled WAL files.
static int	AbstractFSWALProvider.getNumRolledLogFiles(WAL wal) returns the number of rolled WAL files.
(package private) static void	AbstractFSWALProvider.requestLogRoll(WAL wal) request a log roll, but don't actually do it.

Constructors in org.apache.hadoop.hbase.wal with parameters of type WAL

Constructor and Description
RollController(WAL wal)