Package com.hazelcast.jet.pipeline
Interface SinkStage
- All Superinterfaces:
Stage
A pipeline stage that doesn't allow any downstream stages to be attached
to it. Corresponds to a data sink.
- Since:
- Jet 3.0
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Method Summary
Modifier and TypeMethodDescriptionsetLocalParallelism
(int localParallelism) Sets the preferred local parallelism (number of processors per Jet cluster member) this stage will configure its DAG vertices with.Overrides the default name of the stage with the name you choose and returns the stage.Methods inherited from interface com.hazelcast.jet.pipeline.Stage
getPipeline, name
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Method Details
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setLocalParallelism
Description copied from interface:Stage
Sets the preferred local parallelism (number of processors per Jet cluster member) this stage will configure its DAG vertices with. Jet always uses the same number of processors on each member, so the total parallelism automatically increases if another member joins the cluster.While most stages are backed by 1 vertex, there are exceptions. If a stage uses two vertices, each of them will have the given local parallelism, so in total there will be twice as many processors per member.
The default value is -1 and it signals to Jet to figure out a default value. Jet will determine the vertex's local parallelism during job initialization from the global default and the processor meta-supplier's preferred value.
- Specified by:
setLocalParallelism
in interfaceStage
- Returns:
- this stage
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setName
Description copied from interface:Stage
Overrides the default name of the stage with the name you choose and returns the stage. This can be useful for debugging purposes, to better distinguish pipeline stages in the diagnostic output.
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