diff --git a/metricdata/cc-metric-store.go b/metricdata/cc-metric-store.go
index b1e69d0..78d8750 100644
--- a/metricdata/cc-metric-store.go
+++ b/metricdata/cc-metric-store.go
@@ -211,7 +211,7 @@ func (ccms *CCMetricStore) LoadData(job *schema.Job, metrics []string, scopes []
 	}
 
 	if len(errors) != 0 {
-		return jobData, fmt.Errorf("cc-metric-store: errors: %s", strings.Join(errors, ","))
+		return jobData, fmt.Errorf("cc-metric-store: %s", strings.Join(errors, ", "))
 	}
 
 	return jobData, nil
@@ -528,7 +528,7 @@ func (ccms *CCMetricStore) LoadNodeData(cluster, partition string, metrics, node
 		return nil, err
 	}
 
-	_ = resBody
+	var errors []string
 	data := make(map[string]map[string][]*schema.JobMetric)
 	for i, res := range resBody.Results {
 		var query ApiQuery
@@ -541,7 +541,7 @@ func (ccms *CCMetricStore) LoadNodeData(cluster, partition string, metrics, node
 		metric := ccms.toLocalName(query.Metric)
 		qdata := res[0]
 		if qdata.Error != nil {
-			return nil, fmt.Errorf("fetching %s for node %s failed: %s", metric, query.Hostname, *qdata.Error)
+			errors = append(errors, fmt.Sprintf("fetching %s for node %s failed: %s", metric, query.Hostname, *qdata.Error))
 		}
 
 		if qdata.Avg.IsNaN() || qdata.Min.IsNaN() || qdata.Max.IsNaN() {
@@ -574,5 +574,9 @@ func (ccms *CCMetricStore) LoadNodeData(cluster, partition string, metrics, node
 		})
 	}
 
+	if len(errors) != 0 {
+		return data, fmt.Errorf("cc-metric-store: %s", strings.Join(errors, ", "))
+	}
+
 	return data, nil
 }
diff --git a/metricdata/metricdata.go b/metricdata/metricdata.go
index 361aba7..d4d9817 100644
--- a/metricdata/metricdata.go
+++ b/metricdata/metricdata.go
@@ -88,7 +88,7 @@ func LoadData(job *schema.Job, metrics []string, scopes []schema.MetricScope, ct
 			jd, err = repo.LoadData(job, metrics, scopes, ctx)
 			if err != nil {
 				if len(jd) != 0 {
-					log.Errorf("partial error: %s (some data will be returned)", err.Error())
+					log.Errorf("partial error: %s", err.Error())
 				} else {
 					return err, 0, 0
 				}
@@ -174,7 +174,11 @@ func LoadNodeData(cluster, partition string, metrics, nodes []string, scopes []s
 
 	data, err := repo.LoadNodeData(cluster, partition, metrics, nodes, scopes, from, to, ctx)
 	if err != nil {
-		return nil, err
+		if len(data) != 0 {
+			log.Errorf("partial error: %s", err.Error())
+		} else {
+			return nil, err
+		}
 	}
 
 	if data == nil {