public void setUnhealthyNodeReplacement(Boolean unhealthyNodeReplacement) {
        this.unhealthyNodeReplacement = unhealthyNodeReplacement;
    }
<p>
Indicates whether Amazon EMR should gracefully replace core nodes that have degraded within the cluster.
</p>

@param unhealthyNodeReplacement
       Indicates whether Amazon EMR should gracefully replace core nodes that have degraded within the cluster.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/JobFlowInstancesDetail.java