org.apache.hadoop.hbase.master.assignment

Class GCMergedRegionsProcedure

java.lang.Object

<any>

org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure<GCMergedRegionsState>

org.apache.hadoop.hbase.master.assignment.GCMergedRegionsProcedure

All Implemented Interfaces:

TableProcedureInterface

public class GCMergedRegionsProcedure
extends AbstractStateMachineTableProcedure<GCMergedRegionsState>

GC regions that have been Merged. Caller determines if it is GC time. This Procedure does not check.

This is a Table Procedure. We take a read lock on the Table. We do NOT keep a lock for the life of this procedure. The subprocedures take locks on the Regions they are purging.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.master.procedure.TableProcedureInterface

TableProcedureInterface.TableOperationType

Constructor Summary

Constructors

Constructor and Description
GCMergedRegionsProcedure()
GCMergedRegionsProcedure(MasterProcedureEnv env, RegionInfo mergedChild, RegionInfo father, RegionInfo mother)

Method Summary

Modifier and Type	Method and Description
protected void	deserializeStateData(ProcedureStateSerializer serializer)
protected Flow	executeFromState(MasterProcedureEnv env, GCMergedRegionsState state)
protected GCMergedRegionsState	getInitialState()
protected GCMergedRegionsState	getState(int stateId)
protected int	getStateId(GCMergedRegionsState state)
TableName	getTableName()
TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected void	rollbackState(MasterProcedureEnv env, GCMergedRegionsState state)
protected void	serializeStateData(ProcedureStateSerializer serializer)
void	toStringClassDetails(java.lang.StringBuilder sb)

Methods inherited from class org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure

acquireLock, checkOnline, checkTableModifiable, getRegionDir, getUser, preflightChecks, releaseLock, releaseSyncLatch, setUser

Methods inherited from class java.lang.Object

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

Constructor Detail

GCMergedRegionsProcedure

public GCMergedRegionsProcedure(MasterProcedureEnv env,
                                RegionInfo mergedChild,
                                RegionInfo father,
                                RegionInfo mother)

GCMergedRegionsProcedure

public GCMergedRegionsProcedure()

Method Detail

getTableOperationType

public TableProcedureInterface.TableOperationType getTableOperationType()

Description copied from interface: TableProcedureInterface

Given an operation type we can take decisions about what to do with pending operations. e.g. if we get a delete and we have some table operation pending (e.g. add column) we can abort those operations.

Specified by:

getTableOperationType in interface TableProcedureInterface

Specified by:

getTableOperationType in class AbstractStateMachineTableProcedure<GCMergedRegionsState>

Returns:

the operation type that the procedure is executing.

executeFromState

protected Flow executeFromState(MasterProcedureEnv env,
                                GCMergedRegionsState state)
                         throws ProcedureSuspendedException,
                                ProcedureYieldException,
                                java.lang.InterruptedException

Throws:

ProcedureSuspendedException

ProcedureYieldException

java.lang.InterruptedException

rollbackState

protected void rollbackState(MasterProcedureEnv env,
                             GCMergedRegionsState state)
                      throws java.io.IOException,
                             java.lang.InterruptedException

Throws:

java.io.IOException

java.lang.InterruptedException

getState

protected GCMergedRegionsState getState(int stateId)

getStateId

protected int getStateId(GCMergedRegionsState state)

getInitialState

protected GCMergedRegionsState getInitialState()

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws java.io.IOException

Throws:

java.io.IOException

deserializeStateData

protected void deserializeStateData(ProcedureStateSerializer serializer)
                             throws java.io.IOException

Throws:

java.io.IOException

toStringClassDetails

public void toStringClassDetails(java.lang.StringBuilder sb)

Overrides:

toStringClassDetails in class AbstractStateMachineTableProcedure<GCMergedRegionsState>

getTableName

public TableName getTableName()

Specified by:

getTableName in interface TableProcedureInterface

Specified by:

getTableName in class AbstractStateMachineTableProcedure<GCMergedRegionsState>

Returns:

the name of the table the procedure is operating on