@ComputeTaskNoResultCache public final class PlatformFullTask extends PlatformAbstractTask
ctx, done, lock, taskPtr
Constructor and Description |
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PlatformFullTask(PlatformContext ctx,
IgniteComputeImpl compute,
long taskPtr,
long topVer)
Constructor.
|
Modifier and Type | Method and Description |
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Map<? extends ComputeJob,ClusterNode> |
map(List<ClusterNode> subgrid,
Object arg)
This method is called to map or split grid task into multiple grid jobs.
|
onDone, reduce, result
public PlatformFullTask(PlatformContext ctx, IgniteComputeImpl compute, long taskPtr, long topVer)
ctx
- Platform context.compute
- Target compute instance.taskPtr
- Pointer to the task in the native platform.topVer
- Initial topology version.@Nullable public Map<? extends ComputeJob,ClusterNode> map(List<ClusterNode> subgrid, @Nullable Object arg)
subgrid
- Nodes available for this task execution. Note that order of nodes is
guaranteed to be randomized by container. This ensures that every time
you simply iterate through grid nodes, the order of nodes will be random which
over time should result into all nodes being used equally.arg
- Task execution argument. Can be null
. This is the same argument
as the one passed into Grid#execute(...)
methods.ComputeTaskContinuousMapper
is
injected into task, if null
or empty map is returned, exception will be thrown.
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Ignite Fabric : ver. 2.0.0 Release Date : April 30 2017