Class TruncateTableProcedure
java.lang.Object
org.apache.hadoop.hbase.procedure2.Procedure<TEnvironment>
org.apache.hadoop.hbase.procedure2.StateMachineProcedure<MasterProcedureEnv,TState>
org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState>
org.apache.hadoop.hbase.master.procedure.TruncateTableProcedure
- All Implemented Interfaces:
Comparable<Procedure<MasterProcedureEnv>>
,TableProcedureInterface
@Private
public class TruncateTableProcedure
extends AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState>
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure
StateMachineProcedure.Flow
Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.Procedure
Procedure.LockState
Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.master.procedure.TableProcedureInterface
TableProcedureInterface.TableOperationType
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Field Summary
Modifier and TypeFieldDescriptionprivate static final org.slf4j.Logger
private boolean
private List<RegionInfo>
private TableDescriptor
private TableName
Fields inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure
stateCount
Fields inherited from class org.apache.hadoop.hbase.procedure2.Procedure
NO_PROC_ID, NO_TIMEOUT
Fields inherited from interface org.apache.hadoop.hbase.master.procedure.TableProcedureInterface
DUMMY_NAMESPACE_TABLE_NAME
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Constructor Summary
ConstructorDescriptionTruncateTableProcedure
(MasterProcedureEnv env, TableName tableName, boolean preserveSplits) TruncateTableProcedure
(MasterProcedureEnv env, TableName tableName, boolean preserveSplits, ProcedurePrepareLatch latch) -
Method Summary
Modifier and TypeMethodDescriptionprotected void
Called when the procedure is marked as completed (success or rollback).protected void
deserializeStateData
(ProcedureStateSerializer serializer) Called on store load to allow the user to decode the previously serialized state.protected StateMachineProcedure.Flow
executeFromState
(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) called to perform a single step of the specified 'state' of the procedure(package private) RegionInfo
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState
Return the initial state object that will be used for the first call to executeFromState().protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState
getState
(int stateId) Convert an ordinal (or state id) to an Enum (or more descriptive) state object.protected int
getStateId
(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) Convert the Enum (or more descriptive) state object to an ordinal (or state id).Returns the name of the table the procedure is operating onGiven an operation type we can take decisions about what to do with pending operations.protected boolean
Used to keep the procedure lock even when the procedure is yielding or suspended.protected boolean
isRollbackSupported
(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) Used by the default implementation of abort() to know if the current state can be aborted and rollback can be triggered.private void
private boolean
private boolean
private static List<RegionInfo>
recreateRegionInfo
(List<RegionInfo> regions) protected void
rollbackState
(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) called to perform the rollback of the specified stateprotected void
serializeStateData
(ProcedureStateSerializer serializer) The user-level code of the procedure may have some state to persist (e.g.void
Extend the toString() information with the procedure details e.g.Methods inherited from class org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure
acquireLock, checkOnline, checkTableModifiable, getUser, getWALRegionDir, isTableEnabled, preflightChecks, releaseLock, releaseSyncLatch, setUser, waitInitialized
Methods inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure
abort, addChildProcedure, execute, failIfAborted, getCurrentState, getCurrentStateId, getCycles, isEofState, isRollbackSupported, isYieldAfterExecutionStep, isYieldBeforeExecuteFromState, rollback, setNextState, toStringState
Methods inherited from class org.apache.hadoop.hbase.procedure2.Procedure
addStackIndex, afterReplay, beforeReplay, bypass, compareTo, doExecute, doRollback, elapsedTime, getChildrenLatch, getException, getLastUpdate, getNonceKey, getOwner, getParentProcId, getProcedureMetrics, getProcId, getProcIdHashCode, getProcName, getResult, getRootProcedureId, getRootProcId, getStackIndexes, getState, getSubmittedTime, getTimeout, getTimeoutTimestamp, hasChildren, hasException, hasLock, hasOwner, hasParent, hasTimeout, haveSameParent, incChildrenLatch, isBypass, isFailed, isFinished, isInitializing, isLockedWhenLoading, isRunnable, isSuccess, isWaiting, removeStackIndex, setAbortFailure, setChildrenLatch, setExecuted, setFailure, setFailure, setLastUpdate, setNonceKey, setOwner, setOwner, setParentProcId, setProcId, setResult, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, shouldWaitClientAck, skipPersistence, suspend, toString, toStringClass, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, wasExecuted
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Field Details
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LOG
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preserveSplits
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regions
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tableDescriptor
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tableName
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Constructor Details
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TruncateTableProcedure
public TruncateTableProcedure() -
TruncateTableProcedure
public TruncateTableProcedure(MasterProcedureEnv env, TableName tableName, boolean preserveSplits) throws HBaseIOException - Throws:
HBaseIOException
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TruncateTableProcedure
public TruncateTableProcedure(MasterProcedureEnv env, TableName tableName, boolean preserveSplits, ProcedurePrepareLatch latch) throws HBaseIOException - Throws:
HBaseIOException
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Method Details
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executeFromState
protected StateMachineProcedure.Flow executeFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) throws InterruptedException Description copied from class:StateMachineProcedure
called to perform a single step of the specified 'state' of the procedure- Specified by:
executeFromState
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> state
- state to execute- Returns:
- Flow.NO_MORE_STATE if the procedure is completed, Flow.HAS_MORE_STATE if there is another step.
- Throws:
InterruptedException
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rollbackState
protected void rollbackState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) Description copied from class:StateMachineProcedure
called to perform the rollback of the specified state- Specified by:
rollbackState
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> state
- state to rollback
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completionCleanup
Description copied from class:Procedure
Called when the procedure is marked as completed (success or rollback). The procedure implementor may use this method to cleanup in-memory states. This operation will not be retried on failure. If a procedure took a lock, it will have been released when this method runs.- Overrides:
completionCleanup
in classProcedure<MasterProcedureEnv>
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isRollbackSupported
protected boolean isRollbackSupported(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) Description copied from class:StateMachineProcedure
Used by the default implementation of abort() to know if the current state can be aborted and rollback can be triggered.- Overrides:
isRollbackSupported
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState>
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getState
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState getState(int stateId) Description copied from class:StateMachineProcedure
Convert an ordinal (or state id) to an Enum (or more descriptive) state object.- Specified by:
getState
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> - Parameters:
stateId
- the ordinal() of the state enum (or state id)- Returns:
- the state enum object
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getStateId
protected int getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState state) Description copied from class:StateMachineProcedure
Convert the Enum (or more descriptive) state object to an ordinal (or state id).- Specified by:
getStateId
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> - Parameters:
state
- the state enum object- Returns:
- stateId the ordinal() of the state enum (or state id)
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getInitialState
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState getInitialState()Description copied from class:StateMachineProcedure
Return the initial state object that will be used for the first call to executeFromState().- Specified by:
getInitialState
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> - Returns:
- the initial state enum object
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holdLock
Description copied from class:Procedure
Used to keep the procedure lock even when the procedure is yielding or suspended.- Overrides:
holdLock
in classProcedure<MasterProcedureEnv>
- Returns:
- true if the procedure should hold on the lock until completionCleanup()
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getTableName
Description copied from interface:TableProcedureInterface
Returns the name of the table the procedure is operating on- Specified by:
getTableName
in interfaceTableProcedureInterface
- Specified by:
getTableName
in classAbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState>
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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 interfaceTableProcedureInterface
- Specified by:
getTableOperationType
in classAbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState>
- Returns:
- the operation type that the procedure is executing.
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toStringClassDetails
Description copied from class:Procedure
Extend the toString() information with the procedure details e.g. className and parameters- Overrides:
toStringClassDetails
in classAbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState>
- Parameters:
sb
- the string builder to use to append the proc specific information
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serializeStateData
Description copied from class:Procedure
The user-level code of the procedure may have some state to persist (e.g. input arguments or current position in the processing state) to be able to resume on failure.- Overrides:
serializeStateData
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> - Parameters:
serializer
- stores the serializable state- Throws:
IOException
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deserializeStateData
Description copied from class:Procedure
Called on store load to allow the user to decode the previously serialized state.- Overrides:
deserializeStateData
in classStateMachineProcedure<MasterProcedureEnv,
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState> - Parameters:
serializer
- contains the serialized state- Throws:
IOException
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recreateRegionInfo
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prepareTruncate
- Throws:
IOException
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preTruncate
- Throws:
IOException
InterruptedException
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postTruncate
- Throws:
IOException
InterruptedException
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getFirstRegionInfo
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