return ref not found error in case addfast fails (#73)

* return ref not found error in case addfast fails

* update tsdb 0.11.3

Co-authored-by: Dina Nimrodi <dinan@iguazio.com>

Author: dinal

go.mod

@@ -62,7 +62,7 @@ require (
 replace (
 	github.com/golang/lint => golang.org/x/lint v0.0.0-20190409202823-959b441ac422
 	github.com/v3io/frames => github.com/v3io/frames v0.8.1
-	github.com/v3io/v3io-tsdb => github.com/v3io/v3io-tsdb v0.11.2
+	github.com/v3io/v3io-tsdb => github.com/v3io/v3io-tsdb v0.11.3
 	google.golang.org/grpc => google.golang.org/grpc v1.19.1
 	k8s.io/klog => github.com/simonpasquier/klog-gokit v0.1.0
 )

go.sum

@@ -392,8 +392,8 @@ github.com/v3io/frames v0.8.1 h1:wUWCX6RUEQ05SG3P9VtMBYh7gWrYNOiA81HcWXRXGZw=
 github.com/v3io/frames v0.8.1/go.mod h1:qQnXBGO3uLKwN9HVcQ2ggHlIs8xT+200uJaWUgDocpk=
 github.com/v3io/v3io-go v0.1.9 h1:etkrrRmrI++i8sxGfK/+13f41TxIMohYeZHwVUM62vw=
 github.com/v3io/v3io-go v0.1.9/go.mod h1:5poBlcjZG5TiexRTYI44PE6tHzZz5Z60w+iS899pWtc=
-github.com/v3io/v3io-tsdb v0.11.2 h1:knT+IwB+Bkd1aRPTIKltBnYrue1z+2EXmESJLkCexe8=
-github.com/v3io/v3io-tsdb v0.11.2/go.mod h1:l+WxedjLmjy/TThj2vhSW/OnpRw8C7dOntIXHmM/a7I=
+github.com/v3io/v3io-tsdb v0.11.3 h1:zH2rVNsPy9CIm0/gwJ7NNyjDD7G2w4XhUygeZqexLaE=
+github.com/v3io/v3io-tsdb v0.11.3/go.mod h1:kp586KxTfROIGwb/nzNxwDbX2Wterxro+HbiZHmK548=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.2.0 h1:dzZJf2IuMiclVjdw0kkT+f9u4YdrapbNyGAN47E/qnk=

storage/tsdb/promtsdb.go

@@ -259,7 +259,11 @@ func (a v3ioAppender) Add(lset labels.Labels, t int64, v float64) (uint64, error
 }
 
 func (a v3ioAppender) AddFast(lset labels.Labels, ref uint64, t int64, v float64) error {
-	return a.metricsCache.AddFast(ref, t, v)
+	err := a.metricsCache.AddFast(ref, t, v)
+	if err != nil && strings.Contains(err.Error(), "metric not found") {
+		return storage.ErrNotFound
+	}
+	return nil
 }
 
 func (a v3ioAppender) Commit() error   { return nil }