*: bump prometheus and promql-engine

Signed-off-by: Michael Hoffmann <mhoffm@posteo.de>

CHANGELOG.md

@@ -26,6 +26,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 
 - [#6698](https://github.com/thanos-io/thanos/pull/6608) Receive: Change write log level from warn to info.
 - [#6753](https://github.com/thanos-io/thanos/pull/6753) mixin(Rule): *breaking :warning:* Fixed the mixin rules with duplicate names and updated the promtool version from v0.37.0 to v0.47.0
+- [#6772](https://github.com/thanos-io/thanos/pull/6772) *: Bump prometheus to v0.47.1-0.20231002142425-1492031ef2e0
 
 ### Removed
 

cmd/thanos/downsample.go

@@ -361,7 +361,7 @@ func processDownsampling(
 	}
 	level.Info(logger).Log("msg", "downloaded block", "id", m.ULID, "duration", time.Since(begin), "duration_ms", time.Since(begin).Milliseconds())
 
-	if err := block.VerifyIndex(logger, filepath.Join(bdir, block.IndexFilename), m.MinTime, m.MaxTime); err != nil && !acceptMalformedIndex {
+	if err := block.VerifyIndex(ctx, logger, filepath.Join(bdir, block.IndexFilename), m.MinTime, m.MaxTime); err != nil && !acceptMalformedIndex {
 		return errors.Wrap(err, "input block index not valid")
 	}
 
@@ -380,7 +380,7 @@ func processDownsampling(
 	}
 	defer runutil.CloseWithLogOnErr(log.With(logger, "outcome", "potential left mmap file handlers left"), b, "tsdb reader")
 
-	id, err := downsample.Downsample(logger, m, b, dir, resolution)
+	id, err := downsample.Downsample(ctx, logger, m, b, dir, resolution)
 	if err != nil {
 		return errors.Wrapf(err, "downsample block %s to window %d", m.ULID, resolution)
 	}
@@ -391,7 +391,7 @@ func processDownsampling(
 		"from", m.ULID, "to", id, "duration", downsampleDuration, "duration_ms", downsampleDuration.Milliseconds())
 	metrics.downsampleDuration.WithLabelValues(m.Thanos.GroupKey()).Observe(downsampleDuration.Seconds())
 
-	stats, err := block.GatherIndexHealthStats(logger, filepath.Join(resdir, block.IndexFilename), m.MinTime, m.MaxTime)
+	stats, err := block.GatherIndexHealthStats(ctx, logger, filepath.Join(resdir, block.IndexFilename), m.MinTime, m.MaxTime)
 	if err == nil {
 		err = stats.AnyErr()
 	}

go.mod

@@ -56,17 +56,17 @@ require (
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/pkg/errors v0.9.1
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/prometheus/alertmanager v0.25.1
+	github.com/prometheus/alertmanager v0.26.0
 	github.com/prometheus/client_golang v1.16.0
 	github.com/prometheus/client_model v0.4.0
 	github.com/prometheus/common v0.44.0
 	github.com/prometheus/exporter-toolkit v0.10.0
 	// Prometheus maps version 2.x.y to tags v0.x.y.
-	github.com/prometheus/prometheus v0.46.1-0.20230818184859-4d8e380269da
+	github.com/prometheus/prometheus v0.47.1
 	github.com/sony/gobreaker v0.5.0
 	github.com/stretchr/testify v1.8.4
 	github.com/thanos-io/objstore v0.0.0-20230921130928-63a603e651ed
-	github.com/thanos-io/promql-engine v0.0.0-20230821193351-e1ae4275b96e
+	github.com/thanos-io/promql-engine v0.0.0-20231003153358-8605b6afba51
 	github.com/uber/jaeger-client-go v2.30.0+incompatible
 	github.com/uber/jaeger-lib v2.4.1+incompatible // indirect
 	github.com/vimeo/galaxycache v0.0.0-20210323154928-b7e5d71c067a
@@ -120,7 +120,7 @@ require (
 	github.com/onsi/gomega v1.27.10
 	go.opentelemetry.io/contrib/propagators/autoprop v0.38.0
 	go4.org/intern v0.0.0-20230525184215-6c62f75575cb
-	golang.org/x/exp v0.0.0-20230713183714-613f0c0eb8a1
+	golang.org/x/exp v0.0.0-20230801115018-d63ba01acd4b
 )
 
 require (
@@ -129,6 +129,7 @@ require (
 	github.com/huaweicloud/huaweicloud-sdk-go-obs v3.23.3+incompatible // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/onsi/ginkgo v1.16.5 // indirect
+	github.com/zhangyunhao116/umap v0.0.0-20221211160557-cb7705fafa39 // indirect
 	go.opentelemetry.io/collector/pdata v1.0.0-rcv0014 // indirect
 	go.opentelemetry.io/collector/semconv v0.81.0 // indirect
 	go.opentelemetry.io/contrib/propagators/ot v1.13.0 // indirect

go.sum

@@ -392,6 +392,7 @@ github.com/gogo/status v1.0.3/go.mod h1:SavQ51ycCLnc7dGyJxp8YAmudx8xqiVrRf+6IXRs
 github.com/gogo/status v1.1.1 h1:DuHXlSFHNKqTQ+/ACf5Vs6r4X/dH2EgIzR9Vr+H65kg=
 github.com/gogo/status v1.1.1/go.mod h1:jpG3dM5QPcqu19Hg8lkUhBFBa3TcLs1DG7+2Jqci7oU=
 github.com/golang-jwt/jwt v3.2.1+incompatible h1:73Z+4BJcrTC+KczS6WvTPvRGOp1WmfEP4Q1lOd9Z/+c=
+github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
 github.com/golang-jwt/jwt/v4 v4.5.0 h1:7cYmW1XlMY7h7ii7UhUyChSgS5wUJEnm9uZVTGqOWzg=
 github.com/golang-jwt/jwt/v5 v5.0.0 h1:1n1XNM9hk7O9mnQoNBGolZvzebBQ7p93ULHRc28XJUE=
 github.com/golang-jwt/jwt/v5 v5.0.0/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
@@ -437,7 +438,7 @@ github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/gnostic v0.6.9 h1:ZK/5VhkoX835RikCHpSUJV9a+S3e1zLh59YnyWeBW+0=
+github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
@@ -534,7 +535,7 @@ github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 h1:YBftPWNWd4WwGqtY2yeZL2ef8rH
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0/go.mod h1:YN5jB8ie0yfIUg6VvR9Kz84aCaG7AsGZnLjhHbUqwPg=
 github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645/go.mod h1:6iZfnjpejD4L/4DwD7NryNaJyCQdzwWwH2MWhCA90Kw=
 github.com/hashicorp/consul/api v1.3.0/go.mod h1:MmDNSzIMUjNpY/mQ398R4bk2FnqQLoPndWW5VkKPlCE=
-github.com/hashicorp/consul/api v1.22.0 h1:ydEvDooB/A0c/xpsBd8GSt7P2/zYPBui4KrNip0xGjE=
+github.com/hashicorp/consul/api v1.25.1 h1:CqrdhYzc8XZuPnhIYZWH45toM0LB9ZeYr/gvpLVI3PE=
 github.com/hashicorp/consul/sdk v0.3.0/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
 github.com/hashicorp/cronexpr v1.1.2 h1:wG/ZYIKT+RT3QkOdgYc+xsKWVRgnxJ1OJtjjy84fJ9A=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
@@ -779,8 +780,8 @@ github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndr
 github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c h1:ncq/mPwQF4JjgDlrVEn3C11VoGHZN7m8qihwgMEtzYw=
 github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
 github.com/prashantv/gostub v1.1.0 h1:BTyx3RfQjRHnUWaGF9oQos79AlQ5k8WNktv7VGvVH4g=
-github.com/prometheus/alertmanager v0.25.1 h1:LGBNMspOfv8h7brb+LWj2wnwBCg2ZuuKWTh6CAVw2/Y=
-github.com/prometheus/alertmanager v0.25.1/go.mod h1:MEZ3rFVHqKZsw7IcNS/m4AWZeXThmJhumpiWR4eHU/w=
+github.com/prometheus/alertmanager v0.26.0 h1:uOMJWfIwJguc3NaM3appWNbbrh6G/OjvaHMk22aBBYc=
+github.com/prometheus/alertmanager v0.26.0/go.mod h1:rVcnARltVjavgVaNnmevxK7kOn7IZavyf0KNgHkbEpU=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3-0.20190127221311-3c4408c8b829/go.mod h1:p2iRAGwDERtqlqzRXnrOVns+ignqQo//hLXqYxZYVNs=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
@@ -826,8 +827,10 @@ github.com/prometheus/procfs v0.7.3/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1
 github.com/prometheus/procfs v0.8.0/go.mod h1:z7EfXMXOkbkqb9IINtpCn86r/to3BnA0uaxHdg830/4=
 github.com/prometheus/procfs v0.11.1 h1:xRC8Iq1yyca5ypa9n1EZnWZkt7dwcoRPQwX/5gwaUuI=
 github.com/prometheus/procfs v0.11.1/go.mod h1:eesXgaPo1q7lBpVMoMy0ZOFTth9hBn4W/y0/p/ScXhY=
-github.com/prometheus/prometheus v0.46.1-0.20230818184859-4d8e380269da h1:D5uk+FEdNjQs9ly/wkb/pXkoWc60GcV9RVsMUpg/BIE=
-github.com/prometheus/prometheus v0.46.1-0.20230818184859-4d8e380269da/go.mod h1:uvQsz/zwlfb8TRuWjK7L7ofV5ycAYq8dorvNf2iOBN4=
+github.com/prometheus/prometheus v0.47.1-0.20231002142425-1492031ef2e0 h1:hwaGXm+Cmz3s6YFBxLaEVORpeoxvEHd6H4anoIhCMVM=
+github.com/prometheus/prometheus v0.47.1-0.20231002142425-1492031ef2e0/go.mod h1:UC0TwJiF90m2T3iYPQBKnGu8gv3s55dF/EgpTq8gyvo=
+github.com/prometheus/prometheus v0.47.1 h1:bd2LiZyxzHn9Oo2Ei4eK2D86vz/L/OiqR1qYo0XmMBo=
+github.com/prometheus/prometheus v0.47.1/go.mod h1:J/bmOSjgH7lFxz2gZhrWEZs2i64vMS+HIuZfmYNhJ/M=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/redis/rueidis v1.0.14-go1.18 h1:dGir5z8w8X1ex7JWO/Zx2FMBrZgQ8Yjm+lw9fPLSNGw=
 github.com/redis/rueidis v1.0.14-go1.18/go.mod h1:HGekzV3HbmzFmRK6j0xic8Z9119+ECoGMjeN1TV1NYU=
@@ -904,8 +907,8 @@ github.com/thanos-community/galaxycache v0.0.0-20211122094458-3a32041a1f1e h1:f1
 github.com/thanos-community/galaxycache v0.0.0-20211122094458-3a32041a1f1e/go.mod h1:jXcofnrSln/cLI6/dhlBxPQZEEQHVPCcFaH75M+nSzM=
 github.com/thanos-io/objstore v0.0.0-20230921130928-63a603e651ed h1:iWQdY3S6DpWjelVvKKSKgS7LeLkhK4VaEnQfphB9ZXA=
 github.com/thanos-io/objstore v0.0.0-20230921130928-63a603e651ed/go.mod h1:oJ82xgcBDzGJrEgUsjlTj6n01+ZWUMMUR8BlZzX5xDE=
-github.com/thanos-io/promql-engine v0.0.0-20230821193351-e1ae4275b96e h1:kwsFCU8eSkZehbrAN3nXPw5RdMHi/Bok/y8l2C4M+gk=
-github.com/thanos-io/promql-engine v0.0.0-20230821193351-e1ae4275b96e/go.mod h1:+T/ZYNCGybT6eTsGGvVtGb63nT1cvUmH6MjqRrcQoKw=
+github.com/thanos-io/promql-engine v0.0.0-20231003153358-8605b6afba51 h1:Av62ac0O9wRbLI6xvtm51BBZnxHyEgLXV/YmiJpdogc=
+github.com/thanos-io/promql-engine v0.0.0-20231003153358-8605b6afba51/go.mod h1:vfXJv1JXNdLfHnjsHsLLJl5tyI7KblF76Wo5lZ9YC4Q=
 github.com/themihai/gomemcache v0.0.0-20180902122335-24332e2d58ab h1:7ZR3hmisBWw77ZpO1/o86g+JV3VKlk3d48jopJxzTjU=
 github.com/themihai/gomemcache v0.0.0-20180902122335-24332e2d58ab/go.mod h1:eheTFp954zcWZXCU8d0AT76ftsQOTo4DTqkN/h3k1MY=
 github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
@@ -948,6 +951,8 @@ github.com/yuin/gopher-lua v0.0.0-20210529063254-f4c35e4016d9 h1:k/gmLsJDWwWqbLC
 github.com/yuin/gopher-lua v0.0.0-20210529063254-f4c35e4016d9/go.mod h1:E1AXubJBdNmFERAOucpDIxNzeGfLzg0mYh+UfMWdChA=
 github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
+github.com/zhangyunhao116/umap v0.0.0-20221211160557-cb7705fafa39 h1:D3ltj0b2c2FgUacKrB1pWGgwrUyCESY9W8XYYQ5sqY8=
+github.com/zhangyunhao116/umap v0.0.0-20221211160557-cb7705fafa39/go.mod h1:r86X1CnsDRrOeLtJlqRWdELPWpkcf933GTlojQlifQw=
 go.elastic.co/apm v1.11.0 h1:uJyt6nCW9880sZhfl1tB//Jy/5TadNoAd8edRUtgb3w=
 go.elastic.co/apm v1.11.0/go.mod h1:qoOSi09pnzJDh5fKnfY7bPmQgl8yl2tULdOu03xhui0=
 go.elastic.co/apm/module/apmhttp v1.11.0 h1:k/MjK0y2aLOXumoM8jcWXqxvIFlMS4U8Bn9cMUPdVX0=
@@ -1062,8 +1067,8 @@ golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0
 golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
-golang.org/x/exp v0.0.0-20230713183714-613f0c0eb8a1 h1:MGwJjxBy0HJshjDNfLsYO8xppfqWlA5ZT9OhtUUhTNw=
-golang.org/x/exp v0.0.0-20230713183714-613f0c0eb8a1/go.mod h1:FXUEEKJgO7OQYeo8N01OfiKP8RXMtf6e8aTskBGqWdc=
+golang.org/x/exp v0.0.0-20230801115018-d63ba01acd4b h1:r+vk0EmXNmekl0S0BascoeeoHk/L7wmaW2QF90K+kYI=
+golang.org/x/exp v0.0.0-20230801115018-d63ba01acd4b/go.mod h1:FXUEEKJgO7OQYeo8N01OfiKP8RXMtf6e8aTskBGqWdc=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
@@ -1593,10 +1598,10 @@ honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 howett.net/plist v0.0.0-20181124034731-591f970eefbb h1:jhnBjNi9UFpfpl8YZhA9CrOqpnJdvzuiHsl/dnxl11M=
 howett.net/plist v0.0.0-20181124034731-591f970eefbb/go.mod h1:vMygbs4qMhSZSc4lCUl2OEE+rDiIIJAIdR4m7MiMcm0=
-k8s.io/api v0.27.3 h1:yR6oQXXnUEBWEWcvPWS0jQL575KoAboQPfJAuKNrw5Y=
-k8s.io/apimachinery v0.27.3 h1:Ubye8oBufD04l9QnNtW05idcOe9Z3GQN8+7PqmuVcUM=
-k8s.io/client-go v0.27.3 h1:7dnEGHZEJld3lYwxvLl7WoehK6lAq7GvgjxpA3nv1E8=
-k8s.io/kube-openapi v0.0.0-20230525220651-2546d827e515 h1:OmK1d0WrkD3IPfkskvroRykOulHVHf0s0ZIFRjyt+UI=
+k8s.io/api v0.28.1 h1:i+0O8k2NPBCPYaMB+uCkseEbawEt/eFaiRqUx8aB108=
+k8s.io/apimachinery v0.28.1 h1:EJD40og3GizBSV3mkIoXQBsws32okPOy+MkRyzh6nPY=
+k8s.io/client-go v0.28.1 h1:pRhMzB8HyLfVwpngWKE8hDcXRqifh1ga2Z/PU9SXVK8=
+k8s.io/kube-openapi v0.0.0-20230717233707-2695361300d9 h1:LyMgNKD2P8Wn1iAwQU5OhxCKlKJy0sHc+PcDwFB24dQ=
 k8s.io/utils v0.0.0-20230711102312-30195339c3c7 h1:ZgnF1KZsYxWIifwSNZFZgNtWE89WI5yiP5WwlfDoIyc=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=

internal/cortex/querier/series/series_set.go

@@ -27,6 +27,7 @@ import (
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/storage"
 	"github.com/prometheus/prometheus/tsdb/chunkenc"
+	"github.com/prometheus/prometheus/util/annotations"
 )
 
 // ConcreteSeriesSet implements storage.SeriesSet.
@@ -62,7 +63,7 @@ func (c *ConcreteSeriesSet) Err() error {
 }
 
 // Warnings implements storage.SeriesSet.
-func (c *ConcreteSeriesSet) Warnings() storage.Warnings {
+func (c *ConcreteSeriesSet) Warnings() annotations.Annotations {
 	return nil
 }
 

pkg/api/api.go

@@ -34,6 +34,7 @@ import (
 	"github.com/prometheus/common/route"
 	"github.com/prometheus/common/version"
 
+	"github.com/thanos-io/thanos/pkg/extannotations"
 	extpromhttp "github.com/thanos-io/thanos/pkg/extprom/http"
 	"github.com/thanos-io/thanos/pkg/logging"
 	"github.com/thanos-io/thanos/pkg/server/http/middleware"
@@ -233,9 +234,19 @@ func GetInstr(
 	return instr
 }
 
+func shouldNotCacheBecauseOfWarnings(warnings []error) bool {
+	for _, w := range warnings {
+		// PromQL warnings should not prevent caching
+		if !extannotations.IsPromQLAnnotation(w.Error()) {
+			return true
+		}
+	}
+	return false
+}
+
 func Respond(w http.ResponseWriter, data interface{}, warnings []error) {
 	w.Header().Set("Content-Type", "application/json")
-	if len(warnings) > 0 {
+	if shouldNotCacheBecauseOfWarnings(warnings) {
 		w.Header().Set("Cache-Control", "no-store")
 	}
 	w.WriteHeader(http.StatusOK)

pkg/api/query/grpc.go

@@ -129,7 +129,7 @@ func (g *GRPCAPI) Query(request *querypb.QueryRequest, server querypb.Query_Quer
 	}
 
 	if len(result.Warnings) != 0 {
-		if err := server.Send(querypb.NewQueryWarningsResponse(result.Warnings...)); err != nil {
+		if err := server.Send(querypb.NewQueryWarningsResponse(result.Warnings.AsErrors()...)); err != nil {
 			return err
 		}
 	}
@@ -231,7 +231,7 @@ func (g *GRPCAPI) QueryRange(request *querypb.QueryRangeRequest, srv querypb.Que
 	}
 
 	if len(result.Warnings) != 0 {
-		if err := srv.Send(querypb.NewQueryRangeWarningsResponse(result.Warnings...)); err != nil {
+		if err := srv.Send(querypb.NewQueryRangeWarningsResponse(result.Warnings.AsErrors()...)); err != nil {
 			return err
 		}
 	}

pkg/api/query/grpc_test.go

@@ -14,6 +14,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/prometheus/promql"
 	"github.com/prometheus/prometheus/storage"
+	"github.com/prometheus/prometheus/util/annotations"
 	v1 "github.com/prometheus/prometheus/web/api/v1"
 
 	"github.com/thanos-io/thanos/pkg/api/query/querypb"
@@ -41,7 +42,7 @@ func TestGRPCQueryAPIErrorHandling(t *testing.T) {
 		{
 			name: "error response",
 			engine: &engineStub{
-				warns: []error{errors.New("warn stub")},
+				warns: annotations.New().Add(errors.New("warn stub")),
 			},
 		},
 	}
@@ -68,7 +69,7 @@ func TestGRPCQueryAPIErrorHandling(t *testing.T) {
 			if len(test.engine.warns) > 0 {
 				testutil.Ok(t, err)
 				for i, resp := range srv.responses {
-					testutil.Equals(t, test.engine.warns[i].Error(), resp.GetWarnings())
+					testutil.Equals(t, test.engine.warns.AsErrors()[i].Error(), resp.GetWarnings())
 				}
 			}
 		})
@@ -87,7 +88,7 @@ func TestGRPCQueryAPIErrorHandling(t *testing.T) {
 			if len(test.engine.warns) > 0 {
 				testutil.Ok(t, err)
 				for i, resp := range srv.responses {
-					testutil.Equals(t, test.engine.warns[i].Error(), resp.GetWarnings())
+					testutil.Equals(t, test.engine.warns.AsErrors()[i].Error(), resp.GetWarnings())
 				}
 			}
 		})
@@ -97,7 +98,7 @@ func TestGRPCQueryAPIErrorHandling(t *testing.T) {
 type engineStub struct {
 	v1.QueryEngine
 	err   error
-	warns []error
+	warns annotations.Annotations
 }
 
 func (e engineStub) NewInstantQuery(_ context.Context, q storage.Queryable, opts promql.QueryOpts, qs string, ts time.Time) (promql.Query, error) {
@@ -111,7 +112,7 @@ func (e engineStub) NewRangeQuery(_ context.Context, q storage.Queryable, opts p
 type queryStub struct {
 	promql.Query
 	err   error
-	warns []error
+	warns annotations.Annotations
 }
 
 func (q queryStub) Close() {}