Merge pull request #542 from nokia/fix409

properly set deleted tags when using influxdb output

Author: karimra

pkg/outputs/influxdb_output/influxdb_cache.go

@@ -40,18 +40,20 @@ func (i *influxDBOutput) stopCache() {
 func (i *influxDBOutput) runCache(ctx context.Context, name string) {
 	for {
 		select {
+		case <-ctx.Done():
+			return
 		case <-i.done:
 			return
 		case <-i.cacheTicker.C:
 			if i.Cfg.Debug {
 				i.logger.Printf("cache timer tick")
 			}
-			i.readCache(ctx, name)
+			i.readCache(ctx)
 		}
 	}
 }
 
-func (i *influxDBOutput) readCache(ctx context.Context, name string) {
+func (i *influxDBOutput) readCache(ctx context.Context) {
 	notifications, err := i.gnmiCache.ReadAll()
 	if err != nil {
 		i.logger.Printf("failed to read from cache: %v", err)
@@ -85,6 +87,8 @@ func (i *influxDBOutput) readCache(ctx context.Context, name string) {
 
 	for _, ev := range events {
 		select {
+		case <-ctx.Done():
+			return
 		case <-i.reset:
 			return
 		case i.eventChan <- ev:

pkg/outputs/influxdb_output/influxdb_output.go

@@ -346,7 +346,10 @@ START:
 			i.logger.Printf("worker-%d terminating...", idx)
 			return
 		case ev := <-i.eventChan:
-			if len(ev.Values) == 0 || (len(ev.Deletes) == 0 && i.Cfg.DeleteTag != "") {
+			if len(ev.Values) == 0 && len(ev.Deletes) == 0 {
+				continue
+			}
+			if len(ev.Values) == 0 && i.Cfg.DeleteTag == "" {
 				continue
 			}
 			for n, v := range ev.Values {
@@ -368,7 +371,7 @@ START:
 				i.convertUints(ev)
 				writer.WritePoint(influxdb2.NewPoint(ev.Name, ev.Tags, ev.Values, time.Unix(0, ev.Timestamp)))
 			}
-			
+
 			if len(ev.Deletes) > 0 && i.Cfg.DeleteTag != "" {
 				tags := make(map[string]string, len(ev.Tags))
 				for k, v := range ev.Tags {
@@ -377,7 +380,7 @@ START:
 				tags[i.Cfg.DeleteTag] = deleteTagValue
 				values := make(map[string]any, len(ev.Deletes))
 				for _, del := range ev.Deletes {
-					values[del] = 0
+					values[del] = ""
 				}
 				writer.WritePoint(influxdb2.NewPoint(ev.Name, tags, values, time.Unix(0, ev.Timestamp)))
 			}