org.apache.hadoop.hbase.procedure2.store.wal

类 WALProcedureStore

java.lang.Object

org.apache.hadoop.hbase.procedure2.store.ProcedureStoreBase

org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore

所有已实现的接口:

ProcedureStore

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class WALProcedureStore
extends ProcedureStoreBase

WAL implementation of the ProcedureStore.

嵌套类概要

嵌套类

限定符和类型	类和说明
static interface	WALProcedureStore.LeaseRecovery
static class	WALProcedureStore.SyncMetrics

从接口继承的嵌套类/接口 org.apache.hadoop.hbase.procedure2.store.ProcedureStore

ProcedureStore.ProcedureIterator, ProcedureStore.ProcedureLoader, ProcedureStore.ProcedureStoreListener

字段概要

字段

限定符和类型	字段和说明
static String	MAX_RETRIES_BEFORE_ROLL_CONF_KEY
static String	MAX_SYNC_FAILURE_ROLL_CONF_KEY
static String	PERIODIC_ROLL_CONF_KEY
static String	ROLL_RETRIES_CONF_KEY
static String	ROLL_THRESHOLD_CONF_KEY
static String	STORE_WAL_SYNC_STATS_COUNT
static String	SYNC_WAIT_MSEC_CONF_KEY
static String	USE_HSYNC_CONF_KEY
static String	WAIT_BEFORE_ROLL_CONF_KEY

构造器概要

构造器

构造器和说明
WALProcedureStore(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path walDir, WALProcedureStore.LeaseRecovery leaseRecovery)

方法概要

方法

限定符和类型	方法和说明
void	delete(long procId) The specified procId was removed from the executor, due to completion, abort or failure.
void	delete(Procedure proc, long[] subProcIds) The parent procedure completed.
ArrayList<ProcedureWALFile>	getActiveLogs()
Set<ProcedureWALFile>	getCorruptedLogs()
org.apache.hadoop.fs.FileSystem	getFileSystem()
protected org.apache.hadoop.fs.Path	getLogFilePath(long logId)
long	getMillisFromLastRoll()
long	getMillisToNextPeriodicRoll()
int	getNumThreads()
ProcedureStoreTracker	getStoreTracker()
ArrayList<WALProcedureStore.SyncMetrics>	getSyncMetrics()
org.apache.hadoop.fs.Path	getWALDir()
void	insert(Procedure proc, Procedure[] subprocs) When a procedure is submitted to the executor insert(proc, null) will be called.
void	load(ProcedureStore.ProcedureLoader loader) Load the Procedures in the store.
protected void	periodicRollForTesting()
void	recoverLease() Acquire the lease for the procedure store.
protected boolean	rollWriterForTesting()
void	start(int numSlots) Start/Open the procedure store
void	stop(boolean abort) Stop/Close the procedure store
protected long	syncSlots(org.apache.hadoop.fs.FSDataOutputStream stream, ByteSlot[] slots, int offset, int count)
void	update(Procedure proc) The specified procedure was executed, and the new state should be written to the store.

从类继承的方法 org.apache.hadoop.hbase.procedure2.store.ProcedureStoreBase

isRunning, registerListener, sendAbortProcessSignal, sendPostSyncSignal, setRunning, unregisterListener

从类继承的方法 java.lang.Object

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

字段详细资料

MAX_RETRIES_BEFORE_ROLL_CONF_KEY

public static final String MAX_RETRIES_BEFORE_ROLL_CONF_KEY

另请参阅:

常量字段值

WAIT_BEFORE_ROLL_CONF_KEY

public static final String WAIT_BEFORE_ROLL_CONF_KEY

另请参阅:

常量字段值

ROLL_RETRIES_CONF_KEY

public static final String ROLL_RETRIES_CONF_KEY

另请参阅:

常量字段值

MAX_SYNC_FAILURE_ROLL_CONF_KEY

public static final String MAX_SYNC_FAILURE_ROLL_CONF_KEY

另请参阅:

常量字段值

PERIODIC_ROLL_CONF_KEY

public static final String PERIODIC_ROLL_CONF_KEY

另请参阅:

常量字段值

SYNC_WAIT_MSEC_CONF_KEY

public static final String SYNC_WAIT_MSEC_CONF_KEY

另请参阅:

常量字段值

USE_HSYNC_CONF_KEY

public static final String USE_HSYNC_CONF_KEY

另请参阅:

常量字段值

ROLL_THRESHOLD_CONF_KEY

public static final String ROLL_THRESHOLD_CONF_KEY

另请参阅:

常量字段值

STORE_WAL_SYNC_STATS_COUNT

public static final String STORE_WAL_SYNC_STATS_COUNT

另请参阅:

常量字段值

构造器详细资料

WALProcedureStore

public WALProcedureStore(org.apache.hadoop.conf.Configuration conf,
                 org.apache.hadoop.fs.FileSystem fs,
                 org.apache.hadoop.fs.Path walDir,
                 WALProcedureStore.LeaseRecovery leaseRecovery)

方法详细资料

start

public void start(int numSlots)
           throws IOException

从接口复制的说明: ProcedureStore

Start/Open the procedure store

抛出:

IOException

stop

public void stop(boolean abort)

从接口复制的说明: ProcedureStore

Stop/Close the procedure store

参数:

abort - true if the stop is an abort

getNumThreads

public int getNumThreads()

返回:

the number of threads/slots passed to start()

getStoreTracker

public ProcedureStoreTracker getStoreTracker()

getActiveLogs

public ArrayList<ProcedureWALFile> getActiveLogs()

getCorruptedLogs

public Set<ProcedureWALFile> getCorruptedLogs()

recoverLease

public void recoverLease()
                  throws IOException

从接口复制的说明: ProcedureStore

Acquire the lease for the procedure store.

抛出:

IOException

load

public void load(ProcedureStore.ProcedureLoader loader)
          throws IOException

从接口复制的说明: ProcedureStore

Load the Procedures in the store.

参数:

loader - the ProcedureLoader that will handle the store-load events

抛出:

IOException

insert

public void insert(Procedure proc,
          Procedure[] subprocs)

从接口复制的说明: ProcedureStore

When a procedure is submitted to the executor insert(proc, null) will be called. 'proc' has a 'RUNNABLE' state and the initial information required to start up. When a procedure is executed and it returns children insert(proc, subprocs) will be called. 'proc' has a 'WAITING' state and an update state. 'subprocs' are the children in 'RUNNABLE' state with the initial information.

参数:

proc - the procedure to serialize and write to the store.

subprocs - the newly created child of the proc.

update

public void update(Procedure proc)

从接口复制的说明: ProcedureStore

The specified procedure was executed, and the new state should be written to the store.

参数:

proc - the procedure to serialize and write to the store.

delete

public void delete(long procId)

从接口复制的说明: ProcedureStore

The specified procId was removed from the executor, due to completion, abort or failure. The store implementor should remove all the information about the specified procId.

参数:

procId - the ID of the procedure to remove.

delete

public void delete(Procedure proc,
          long[] subProcIds)

从接口复制的说明: ProcedureStore

The parent procedure completed. Update the state and mark all the child deleted.

参数:

proc - the parent procedure to serialize and write to the store.

subProcIds - the IDs of the sub-procedure to remove.

getSyncMetrics

public ArrayList<WALProcedureStore.SyncMetrics> getSyncMetrics()

syncSlots

protected long syncSlots(org.apache.hadoop.fs.FSDataOutputStream stream,
             ByteSlot[] slots,
             int offset,
             int count)
                  throws IOException

抛出:

IOException

getMillisToNextPeriodicRoll

public long getMillisToNextPeriodicRoll()

getMillisFromLastRoll

public long getMillisFromLastRoll()

periodicRollForTesting

protected void periodicRollForTesting()
                               throws IOException

抛出:

IOException

rollWriterForTesting

protected boolean rollWriterForTesting()
                                throws IOException

抛出:

IOException

getWALDir

public org.apache.hadoop.fs.Path getWALDir()

getFileSystem

public org.apache.hadoop.fs.FileSystem getFileSystem()

getLogFilePath

protected org.apache.hadoop.fs.Path getLogFilePath(long logId)
                                            throws IOException

抛出:

IOException