org.apache.oozie.command.coord

Class CoordRerunXCommand

java.lang.Object

org.apache.oozie.command.XCommand<T>

org.apache.oozie.command.TransitionXCommand<T>

org.apache.oozie.command.RerunTransitionXCommand<CoordinatorActionInfo>

org.apache.oozie.command.coord.CoordRerunXCommand

All Implemented Interfaces:

Callable<CoordinatorActionInfo>, XCallable<CoordinatorActionInfo>

public class CoordRerunXCommand
extends RerunTransitionXCommand<CoordinatorActionInfo>

Rerun coordinator actions by a list of dates or ids. User can specify if refresh or noCleanup.

The "rerunType" can be set as RestConstants.JOB_COORD_SCOPE_DATE or RestConstants.JOB_COORD_SCOPE_ACTION.

The "refresh" is used to indicate if user wants to refresh an action's input and output events.

The "noCleanup" is used to indicate if user wants to cleanup output events for given rerun actions

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	prevPending
static String	RERUN_CONF

Fields inherited from class org.apache.oozie.command.RerunTransitionXCommand

jobId, prevStatus, ret

Fields inherited from class org.apache.oozie.command.TransitionXCommand

insertList, job, updateList

Fields inherited from class org.apache.oozie.command.XCommand

DEFAULT_LOCK_TIMEOUT, DEFAULT_REQUEUE_DELAY, dryrun, eventService, instrumentation, INSTRUMENTATION_GROUP, LOG

Constructor Summary

Constructors

Constructor and Description
CoordRerunXCommand(String jobId, String rerunType, String scope, boolean refresh, boolean noCleanup, boolean failed, org.apache.hadoop.conf.Configuration actionRunConf) The constructor for class CoordRerunXCommand

Method Summary

Methods

Modifier and Type	Method and Description
protected void	eagerLoadState() Load the necessary state to perform an eager precondition check.
protected void	eagerVerifyPrecondition() Verify the precondition for the command before obtaining a lock.
String	getEntityKey() Return the entity key for the command.
Job	getJob() Get the Job for the command.
XLog	getLog() Get XLog log
protected boolean	isLockRequired() Indicate if the the command requires locking.
protected void	loadState() Load the necessary state to perform the precondition check and to execute the command.
void	notifyParent() This will be used to notify the parent about the status of that perticular job.
void	performWrites() This will be used to perform atomically all the writes within this command.
void	rerunChildren() Rerun actions associated with the job
void	transitToNext() Transit to the next status based on the result of the Job.
void	updateJob() Update the parent job.
protected void	verifyPrecondition() Verify the precondition for the command after a lock has been obtain, just before executing the command.

Methods inherited from class org.apache.oozie.command.RerunTransitionXCommand

execute, getPrevStatus

Methods inherited from class org.apache.oozie.command.TransitionXCommand

generateEvents, setJob

Methods inherited from class org.apache.oozie.command.XCommand

call, executeInterrupts, getCreatedTime, getInstrumentation, getKey, getLockTimeOut, getName, getPriority, getRequeueDelay, getType, inInterruptMode, isReQueueRequired, queue, queue, resetUsed, setInterruptMode, setLogInfo, toString

Methods inherited from class java.lang.Object

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

Field Detail

RERUN_CONF

public static final String RERUN_CONF

See Also:

Constant Field Values

prevPending

protected boolean prevPending

Constructor Detail

CoordRerunXCommand

public CoordRerunXCommand(String jobId,
                  String rerunType,
                  String scope,
                  boolean refresh,
                  boolean noCleanup,
                  boolean failed,
                  org.apache.hadoop.conf.Configuration actionRunConf)

The constructor for class CoordRerunXCommand

Parameters:

jobId - the job id

rerunType - rerun type RestConstants.JOB_COORD_SCOPE_DATE or RestConstants.JOB_COORD_SCOPE_ACTION

scope - the rerun scope for given rerunType separated by ","

refresh - true if user wants to refresh input/output dataset urls

noCleanup - false if user wants to cleanup output events for given rerun actions

failed - true if user wants to rerun only failed nodes

actionRunConf - configuration values for actions

Method Detail

getEntityKey

public String getEntityKey()

Description copied from class: XCommand

Return the entity key for the command.

Specified by:

getEntityKey in interface XCallable<CoordinatorActionInfo>

Specified by:

getEntityKey in class XCommand<CoordinatorActionInfo>

Returns:

the entity key for the command.

isLockRequired

protected boolean isLockRequired()

Description copied from class: XCommand

Indicate if the the command requires locking.

Subclasses should override this method if they require locking.

Specified by:

isLockRequired in class XCommand<CoordinatorActionInfo>

Returns:

true/false

loadState

protected void loadState()
                  throws CommandException

Description copied from class: XCommand

Load the necessary state to perform the precondition check and to execute the command.

Subclasses must implement this method and load the state needed to do the precondition check and execute the command.

Specified by:

loadState in class XCommand<CoordinatorActionInfo>

Throws:

CommandException

verifyPrecondition

protected void verifyPrecondition()
                           throws CommandException,
                                  PreconditionException

Description copied from class: XCommand

Verify the precondition for the command after a lock has been obtain, just before executing the command.

Overrides:

verifyPrecondition in class RerunTransitionXCommand<CoordinatorActionInfo>

Throws:

CommandException - thrown if the precondition is not met.

PreconditionException

eagerLoadState

protected void eagerLoadState()
                       throws CommandException

Description copied from class: XCommand

Load the necessary state to perform an eager precondition check.

This implementation does a NOP.

Subclasses should override this method and load the state needed to do an eager precondition check.

A trivial implementation is calling {link #loadState}.

Overrides:

eagerLoadState in class RerunTransitionXCommand<CoordinatorActionInfo>

Throws:

CommandException

eagerVerifyPrecondition

protected void eagerVerifyPrecondition()
                                throws CommandException,
                                       PreconditionException

Description copied from class: XCommand

Verify the precondition for the command before obtaining a lock.

This implementation does a NOP.

A trivial implementation is calling {link #verifyPrecondition}.

Overrides:

eagerVerifyPrecondition in class RerunTransitionXCommand<CoordinatorActionInfo>

Throws:

CommandException - thrown if the precondition is not met.

PreconditionException

rerunChildren

public void rerunChildren()
                   throws CommandException

Description copied from class: RerunTransitionXCommand

Rerun actions associated with the job

Specified by:

rerunChildren in class RerunTransitionXCommand<CoordinatorActionInfo>

Throws:

CommandException - thrown if failed to rerun actions

getJob

public Job getJob()

Description copied from class: TransitionXCommand

Get the Job for the command.

Overrides:

getJob in class TransitionXCommand<CoordinatorActionInfo>

Returns:

the job

notifyParent

public void notifyParent()
                  throws CommandException

Description copied from class: TransitionXCommand

This will be used to notify the parent about the status of that perticular job.

Specified by:

notifyParent in class TransitionXCommand<CoordinatorActionInfo>

Throws:

CommandException

updateJob

public void updateJob()

Description copied from class: TransitionXCommand

Update the parent job.

Specified by:

updateJob in class TransitionXCommand<CoordinatorActionInfo>

performWrites

public void performWrites()
                   throws CommandException

Description copied from class: TransitionXCommand

This will be used to perform atomically all the writes within this command.

Specified by:

performWrites in class TransitionXCommand<CoordinatorActionInfo>

Throws:

CommandException

getLog

public XLog getLog()

Description copied from class: XCommand

Get XLog log

Overrides:

getLog in class XCommand<CoordinatorActionInfo>

Returns:

XLog

transitToNext

public final void transitToNext()

Description copied from class: TransitionXCommand

Transit to the next status based on the result of the Job.

Overrides:

transitToNext in class RerunTransitionXCommand<CoordinatorActionInfo>