PutAutoScalingPolicy

Source: src/AWS/EMR/PutAutoScalingPolicy.ts

Runtime binding for elasticmapreduce:PutAutoScalingPolicy — attaches a CloudWatch-driven automatic scaling policy to an instance group of the bound cluster.

Scaling the Cluster

const putAutoScaling = yield* AWS.EMR.PutAutoScalingPolicy(cluster);

yield* putAutoScaling({
  InstanceGroupId: taskGroupId,
  AutoScalingPolicy: {
    Constraints: { MinCapacity: 0, MaxCapacity: 8 },
    Rules: [], // CloudWatch alarm-driven rules
  },
});