eco-heron-examples/src/java/org/apache/heron/examples/eco/heron_wordcount.yaml

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---

# topology definition
# name to be used when submitting
name: "heron-simple-wordcount-topology"
type: "heron"

# topology configuration
# this will be passed to the submitter as a map of config options
#
config:
  topology.workers: 2
  topology.component.resourcemap:

    - id: "spout-1"
      ram: 256MB # The minimum value for a component's specified RAM is 256MB
      cpu: 0.5
      disk: 4GB

    - id: "bolt-1"
      ram: 256MB # The minimum value for a component's specified RAM is 256MB
      cpu: 0.5
      disk: 2GB

  topology.component.jvmoptions:

   - id: "spout-1"
     options: ["-XX:NewSize=300m", "-Xms2g"]

# spout definitions
spouts:
  - id: "spout-1"
    className: "org.apache.heron.examples.eco.TestNameSpout"
    parallelism: 1

# bolt definitions
bolts:
  - id: "bolt-1"
    className: "org.apache.heron.examples.eco.TestNameCounter"
    parallelism: 1

  - id: "bolt-2"
    className: "org.apache.heron.examples.eco.LogInfoBolt"
    parallelism: 1

#stream definitions
# stream definitions define connections between spouts and bolts.
# note that such connections can be cyclical
streams:
  - from: "spout-1"
    to: "bolt-1"
    grouping:
      type: FIELDS
      args: ["word"]

  - from: "bolt-1"
    to: "bolt-2"
    grouping:
      type: SHUFFLE