diff --git a/cmd/sender.go b/cmd/sender.go
index 900341a..2c16251 100644
--- a/cmd/sender.go
+++ b/cmd/sender.go
@@ -31,7 +31,7 @@ var (
 		Help:    "Batch size for database submissions",
 		Buckets: []float64{1, 5, 10, 50, 100, 500, 1000, 5000, 10000},
 	})
-	promShipperMongoSentError = promauto.NewCounterVec(prom.CounterOpts{
+	promShipperDbSendError = promauto.NewCounterVec(prom.CounterOpts{
 		Namespace: PrometheusPrefix,
 		// Subsystem: "shipper",
 		Name: "insertion_error",                     // "errors",
@@ -88,6 +88,7 @@ func (s *submitter) sender(name string, sendQueue <-chan mLog) {
 		if !ok {
 			return
 		}
+		promShipperBatchSizeResult.Observe(float64(len(batch)))
 
 		promShipperSynced.WithLabelValues(baseName).Set(0)
 
@@ -98,6 +99,7 @@ func (s *submitter) sender(name string, sendQueue <-chan mLog) {
 
 		result, err := s.db.InsertMany(mongoTimeoutCtx(context.Background()), batchBson, nil)
 		if err != nil {
+			promShipperDbSendError.WithLabelValues(baseName).Add(1)
 			s.l.Error("submission to database", zap.Error(err)) // TODO: add some selective retry here or something
 			continue
 		}
diff --git a/cmd/submitter.go b/cmd/submitter.go
index 602d0fd..1c2c0ec 100644
--- a/cmd/submitter.go
+++ b/cmd/submitter.go
@@ -75,7 +75,7 @@ func (s *submitter) shipFile(ctx context.Context, name string, recordLimitBytes
 	go s.sender(name, sendChan)
 
 	// TODO: better way to kill or wait for sendQueue before retrying (or duplicates?)
-	wait.ManagedExponentialBackoffWithContext(ctx, defaultBackoff(), func() (done bool, _ error) {
+	_ = wait.ManagedExponentialBackoffWithContext(ctx, defaultBackoff(), func() (done bool, _ error) {
 		//
 		err := s.shipFileRoutine(ctx, name, lineChan)
 		if err == nil {