public void setFailureReason(String failureReason) {
        this.failureReason = failureReason;
    }
<p>
If creating a dataset group fails, the reason behind the failure.
</p>

@param failureReason
       If creating a dataset group fails, the reason behind the failure.
aws-java-sdk-personalize/src/main/java/com/amazonaws/services/personalize/model/DatasetGroupSummary.java