org.apache.hadoop.hbase.procedure.flush

Class RegionServerFlushTableProcedureManager

java.lang.Object

org.apache.hadoop.hbase.procedure.ProcedureManager

org.apache.hadoop.hbase.procedure.RegionServerProcedureManager

org.apache.hadoop.hbase.procedure.flush.RegionServerFlushTableProcedureManager

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class RegionServerFlushTableProcedureManager
extends RegionServerProcedureManager

This manager class handles flushing of the regions for table on a HRegionServer.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	RegionServerFlushTableProcedureManager.FlushTableSubprocedureBuilder

Field Summary

Fields

Modifier and Type	Field and Description
static int	FLUSH_REQUEST_THREADS_DEFAULT
static String	FLUSH_REQUEST_THREADS_KEY
static String	FLUSH_REQUEST_WAKE_MILLIS_KEY
static long	FLUSH_TIMEOUT_MILLIS_DEFAULT
static String	FLUSH_TIMEOUT_MILLIS_KEY

Constructor Summary

Constructors

Constructor and Description
RegionServerFlushTableProcedureManager()

Method Summary

Modifier and Type	Method and Description
Subprocedure	buildSubprocedure(String table) If in a running state, creates the specified subprocedure to flush table regions.
String	getProcedureSignature() Return the unique signature of the procedure.
void	initialize(RegionServerServices rss) Initialize this region server flush procedure manager Uses a zookeeper based member controller.
void	start() Start accepting flush table requests.
void	stop(boolean force) Close this and all running tasks

Methods inherited from class org.apache.hadoop.hbase.procedure.ProcedureManager

equals, hashCode

Methods inherited from class java.lang.Object

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

Field Detail

FLUSH_REQUEST_THREADS_KEY

public static final String FLUSH_REQUEST_THREADS_KEY

See Also:

Constant Field Values

FLUSH_REQUEST_THREADS_DEFAULT

public static final int FLUSH_REQUEST_THREADS_DEFAULT

See Also:

Constant Field Values

FLUSH_TIMEOUT_MILLIS_KEY

public static final String FLUSH_TIMEOUT_MILLIS_KEY

See Also:

Constant Field Values

FLUSH_TIMEOUT_MILLIS_DEFAULT

public static final long FLUSH_TIMEOUT_MILLIS_DEFAULT

See Also:

Constant Field Values

FLUSH_REQUEST_WAKE_MILLIS_KEY

public static final String FLUSH_REQUEST_WAKE_MILLIS_KEY

See Also:

Constant Field Values

Constructor Detail

RegionServerFlushTableProcedureManager

public RegionServerFlushTableProcedureManager()

Method Detail

start

public void start()

Start accepting flush table requests.

Specified by:

start in class RegionServerProcedureManager

stop

public void stop(boolean force)
          throws IOException

Close this and all running tasks

Specified by:

stop in class RegionServerProcedureManager

Parameters:

force - forcefully stop all running tasks

Throws:

IOException

buildSubprocedure

public Subprocedure buildSubprocedure(String table)

If in a running state, creates the specified subprocedure to flush table regions. Because this gets the local list of regions to flush and not the set the master had, there is a possibility of a race where regions may be missed.

Parameters:

table -

Returns:

Subprocedure to submit to the ProcedureMemeber.

initialize

public void initialize(RegionServerServices rss)
                throws org.apache.zookeeper.KeeperException

Initialize this region server flush procedure manager Uses a zookeeper based member controller.

Specified by:

initialize in class RegionServerProcedureManager

Parameters:

rss - region server

Throws:

org.apache.zookeeper.KeeperException - if the zookeeper cannot be reached

getProcedureSignature

public String getProcedureSignature()

Description copied from class: ProcedureManager

Return the unique signature of the procedure. This signature uniquely identifies the procedure. By default, this signature is the string used in the procedure controller (i.e., the root ZK node name for the procedure)

Specified by:

getProcedureSignature in class ProcedureManager