From 4d8a08d5991adfda66be6ea90a2d1d108b6b0dd5 Mon Sep 17 00:00:00 2001
From: Felix Beuke <felix.beuke@grafana.com>
Date: Wed, 3 Jan 2024 13:01:38 +0100
Subject: [PATCH] ensure request body is fully read before closing

---
 pkg/frontend/querymiddleware/shard_active_series.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkg/frontend/querymiddleware/shard_active_series.go b/pkg/frontend/querymiddleware/shard_active_series.go
index 17a14c72ae5..8b7cf8d113b 100644
--- a/pkg/frontend/querymiddleware/shard_active_series.go
+++ b/pkg/frontend/querymiddleware/shard_active_series.go
@@ -240,8 +240,9 @@ func (s *shardActiveSeriesMiddleware) mergeResponses(ctx context.Context, respon
 		}
 		r := res
 		g.Go(func() error {
-			defer func(Body io.ReadCloser) {
-				_ = Body.Close()
+			defer func(body io.ReadCloser) {
+				_, _ = io.ReadAll(body)
+				_ = body.Close()
 			}(r.Body)
 
 			it := jsoniter.Parse(jsoniter.ConfigFastest, r.Body, 512)