org.apache.ignite.internal.visor.misc

Class VisorWalTask

java.lang.Object

org.apache.ignite.internal.visor.VisorMultiNodeTask<VisorWalTaskArg,VisorWalTaskResult,Collection<String>>

org.apache.ignite.internal.visor.misc.VisorWalTask

All Implemented Interfaces:

Serializable, ComputeTask<VisorTaskArgument<VisorWalTaskArg>,VisorWalTaskResult>

@GridInternal
public class VisorWalTask
extends VisorMultiNodeTask<VisorWalTaskArg,VisorWalTaskResult,Collection<String>>

Performs WAL cleanup clusterwide.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.ignite.internal.visor.VisorMultiNodeTask

debug, ignite, start, taskArg

Constructor Summary

Constructors

Constructor and Description
VisorWalTask()

Method Summary

Modifier and Type	Method and Description
protected org.apache.ignite.internal.visor.misc.VisorWalTask.VisorWalJob	job(VisorWalTaskArg arg)
protected Collection<UUID>	jobNodes(VisorTaskArgument<VisorWalTaskArg> arg)
protected @Nullable VisorWalTaskResult	reduce0(List<ComputeJobResult> results) Actual reduce logic.

Methods inherited from class org.apache.ignite.internal.visor.VisorMultiNodeTask

map, map0, reduce, result

Methods inherited from class java.lang.Object

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

Constructor Detail

VisorWalTask

public VisorWalTask()

Method Detail

job

protected org.apache.ignite.internal.visor.misc.VisorWalTask.VisorWalJob job(VisorWalTaskArg arg)

Specified by:

job in class VisorMultiNodeTask<VisorWalTaskArg,VisorWalTaskResult,Collection<String>>

Parameters:

arg - Task arg.

Returns:

New job.

jobNodes

protected Collection<UUID> jobNodes(VisorTaskArgument<VisorWalTaskArg> arg)

Overrides:

jobNodes in class VisorMultiNodeTask<VisorWalTaskArg,VisorWalTaskResult,Collection<String>>

Returns:

Collection of nodes IDs where jobs should be mapped.

reduce0

@Nullable
protected @Nullable VisorWalTaskResult reduce0(List<ComputeJobResult> results)
                                                  throws IgniteException

Actual reduce logic.

Specified by:

reduce0 in class VisorMultiNodeTask<VisorWalTaskArg,VisorWalTaskResult,Collection<String>>

Parameters:

results - Job results.

Returns:

Task result.

Throws:

IgniteException - If reduction or results caused an error.