fix check context cancellation not incrementing count

Signed-off-by: Ben Ye <benye@amazon.com>
5 months ago · e7db2e30a4
1 changed files with 1 additions and 0 deletions
--- a/tsdb/index/index.go
+++ b/tsdb/index/index.go
@ -1557,6 +1557,7 @@ func (r *Reader) LabelNamesFor(ctx context.Context, postings Postings) ([]string
 	i := 0
 	for postings.Next() {
 		id := postings.At()
+		i++

 		if i%checkContextEveryNIterations == 0 && ctx.Err() != nil {
 			return nil, ctx.Err()