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29 changes: 29 additions & 0 deletions changelog/24.0/24.0.0/summary.md
Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,9 @@
- [QueryThrottler Event-Driven Configuration Updates](#vttablet-querythrottler-config-watch)
- [New `in_order_completion_pending_count` field in OnlineDDL outputs](#vttablet-onlineddl-in-order-completion-count)
- [Tablet Shutdown Tracking and Connection Validation](#vttablet-tablet-shutdown-validation)
- **[Tracing](#minor-changes-tracing)**
- [OpenTelemetry tracing support](#tracing-opentelemetry)
- [Deprecation of OpenTracing-based tracing backends](#tracing-opentracing-deprecation)
- **[VTOrc](#minor-changes-vtorc)**
- [New `--cell` Flag](#vtorc-cell-flag)
- [Improved VTOrc Discovery Logging](#vtorc-improved-discovery-logging)
Expand Down Expand Up @@ -215,6 +218,32 @@ Vitess now tracks when tablets cleanly shut down and validates tablet records be

**Note**: This is a best-effort mechanism. Tablets that are killed or crash may not have the opportunity to set this field, in which case components will continue to attempt connections as they did in v23 and earlier.

### <a id="minor-changes-tracing"/>Tracing</a>

#### <a id="tracing-opentelemetry"/>OpenTelemetry tracing support</a>

Vitess now supports [OpenTelemetry](https://opentelemetry.io/) as a tracing backend. To use it, set `--tracer opentelemetry` on any Vitess binary. Traces are exported via OTLP/gRPC, configurable with the following flags:

- `--otel-endpoint` (default `localhost:4317`): OpenTelemetry collector endpoint.
- `--otel-insecure` (default `true`): use insecure connection to the collector.
- `--tracing-sampling-rate` (default `0.1`): sampling rate for traces (shared across all tracing backends).

Any OTLP-compatible backend (Jaeger v1.35+, Grafana Tempo, Datadog Agent, etc.) can receive these traces.

#### <a id="tracing-opentracing-deprecation"/>Deprecation of OpenTracing-based tracing backends</a>

The following tracing backends are deprecated as of v24 and will be removed in v25:

- `opentracing-jaeger` — Uses the [Jaeger client-go](https://github.com/uber/jaeger-client-go) library, which has been archived. The Jaeger project [recommends migrating to OpenTelemetry](https://www.jaegertracing.io/docs/next-release/getting-started/#migrating-from-jaeger-clients-to-opentelemetry-sdk). Users should migrate to `--tracer opentelemetry` with an OTLP-compatible Jaeger endpoint (v1.35+).
- `opentracing-datadog` — Uses the OpenTracing bridge in `dd-trace-go`. Users should migrate to `--tracer opentelemetry` with the Datadog Agent's OTLP ingestion endpoint.

The `--tracer opentracing-jaeger` and `--tracer opentracing-datadog` options continue to work in v24 but will log a deprecation warning at startup. The following Jaeger-specific flags are also deprecated and will be removed in v25:

- `--jaeger-agent-host`
- `--tracing-sampling-type`

**Migration**: Replace `--tracer opentracing-jaeger` with `--tracer opentelemetry` and `--jaeger-agent-host host:port` with `--otel-endpoint host:4317`. Ensure your Jaeger deployment accepts OTLP (Jaeger v1.35+ listens on port 4317 by default).

### <a id="minor-changes-vtorc"/>VTOrc</a>

#### <a id="vtorc-cell-flag"/>New `--cell` Flag</a>
Expand Down
23 changes: 13 additions & 10 deletions go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ require (
go.uber.org/mock v0.6.0
golang.org/x/crypto v0.48.0 // indirect
golang.org/x/mod v0.33.0 // indirect
golang.org/x/net v0.50.0
golang.org/x/net v0.51.0
golang.org/x/oauth2 v0.35.0
golang.org/x/sys v0.41.0
golang.org/x/term v0.40.0
Expand All @@ -77,7 +77,7 @@ require (
golang.org/x/tools v0.42.0
google.golang.org/api v0.268.0
google.golang.org/genproto v0.0.0-20260128011058-8636f8732409 // indirect
google.golang.org/grpc v1.79.1
google.golang.org/grpc v1.79.2
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.6.1
google.golang.org/grpc/examples v0.0.0-20250407062114-b368379ef8f6
google.golang.org/protobuf v1.36.11
Expand Down Expand Up @@ -110,6 +110,8 @@ require (
github.com/spf13/afero v1.15.0
github.com/spf13/jwalterweatherman v1.1.0
github.com/xlab/treeprint v1.2.0
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0
go.uber.org/goleak v1.3.0
golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546
golang.org/x/sync v0.19.0
Expand Down Expand Up @@ -148,7 +150,7 @@ require (
github.com/godbus/dbus/v5 v5.1.0 // indirect
github.com/google/btree v1.1.3 // indirect
github.com/google/pprof v0.0.0-20250820193118-f64d9cf942d6 // indirect
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 // indirect
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/moby/sys/userns v0.1.0 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
Expand All @@ -169,6 +171,7 @@ require (
go.opentelemetry.io/collector/pdata v1.42.0 // indirect
go.opentelemetry.io/contrib/bridges/otelzap v0.13.0 // indirect
go.opentelemetry.io/otel/log v0.14.0 // indirect
go.opentelemetry.io/proto/otlp v1.9.0 // indirect
go.yaml.in/yaml/v2 v2.4.3 // indirect
go.yaml.in/yaml/v3 v3.0.4 // indirect
gotest.tools/gotestsum v1.13.0 // indirect
Expand Down Expand Up @@ -265,17 +268,17 @@ require (
go.opentelemetry.io/contrib/detectors/gcp v1.39.0 // indirect
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.63.0 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0 // indirect
go.opentelemetry.io/otel v1.40.0 // indirect
go.opentelemetry.io/otel/metric v1.40.0 // indirect
go.opentelemetry.io/otel/sdk v1.40.0 // indirect
go.opentelemetry.io/otel/sdk/metric v1.40.0 // indirect
go.opentelemetry.io/otel/trace v1.40.0 // indirect
go.opentelemetry.io/otel v1.42.0
go.opentelemetry.io/otel/metric v1.42.0 // indirect
go.opentelemetry.io/otel/sdk v1.42.0
go.opentelemetry.io/otel/sdk/metric v1.42.0 // indirect
go.opentelemetry.io/otel/trace v1.42.0
go.uber.org/atomic v1.11.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
go.uber.org/zap v1.27.0 // indirect
golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20 // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20260209200024-4cfbd4190f57 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20260209200024-4cfbd4190f57 // indirect
gopkg.in/ini.v1 v1.67.0 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
modernc.org/libc v1.67.6 // indirect
Expand Down
46 changes: 26 additions & 20 deletions go.sum
Original file line number Diff line number Diff line change
Expand Up @@ -329,8 +329,8 @@ github.com/grpc-ecosystem/go-grpc-middleware v1.4.0 h1:UH//fgunKIs4JdUbpDl1VZCDa
github.com/grpc-ecosystem/go-grpc-middleware v1.4.0/go.mod h1:g5qyo/la0ALbONm6Vbp88Yd8NsDy6rZz+RcrMPxvld8=
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 h1:Ovs26xHkKqVztRpIrF/92BcuyuQ/YW4NSIpoGtfXNho=
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 h1:HWRh5R2+9EifMyIHV7ZV+MIZqgz+PMpZ14Jynv3O2Zs=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0/go.mod h1:JfhWUomR1baixubs02l85lZYYOm7LV6om4ceouMv45c=
github.com/hashicorp/consul/api v1.33.3 h1:6ttDO8Os/lqwaus7nJxJaeiUw2o7GWKoQ1jexAFPdEQ=
github.com/hashicorp/consul/api v1.33.3/go.mod h1:1HoAkxkKpC8A9lsUYs7QCMfSSKiz6+vlfrI1J3PUEeI=
github.com/hashicorp/consul/sdk v0.17.1 h1:LumAh8larSXmXw2wvw/lK5ZALkJ2wK8VRwWMLVV5M5c=
Expand Down Expand Up @@ -681,22 +681,28 @@ go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.6
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.63.0/go.mod h1:fvPi2qXDqFs8M4B4fmJhE92TyQs9Ydjlg3RvfUp+NbQ=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0 h1:RbKq8BG0FI8OiXhBfcRtqqHcZcka+gU3cskNuf05R18=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0/go.mod h1:h06DGIukJOevXaj/xrNjhi/2098RZzcLTbc0jDAUbsg=
go.opentelemetry.io/otel v1.40.0 h1:oA5YeOcpRTXq6NN7frwmwFR0Cn3RhTVZvXsP4duvCms=
go.opentelemetry.io/otel v1.40.0/go.mod h1:IMb+uXZUKkMXdPddhwAHm6UfOwJyh4ct1ybIlV14J0g=
go.opentelemetry.io/otel v1.42.0 h1:lSQGzTgVR3+sgJDAU/7/ZMjN9Z+vUip7leaqBKy4sho=
go.opentelemetry.io/otel v1.42.0/go.mod h1:lJNsdRMxCUIWuMlVJWzecSMuNjE7dOYyWlqOXWkdqCc=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 h1:THuZiwpQZuHPul65w4WcwEnkX2QIuMT+UFoOrygtoJw=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0/go.mod h1:J2pvYM5NGHofZ2/Ru6zw/TNWnEQp5crgyDeSrYpXkAw=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 h1:zWWrB1U6nqhS/k6zYB74CjRpuiitRtLLi68VcgmOEto=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0/go.mod h1:2qXPNBX1OVRC0IwOnfo1ljoid+RD0QK3443EaqVlsOU=
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0 h1:5gn2urDL/FBnK8OkCfD1j3/ER79rUuTYmCvlXBKeYL8=
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0/go.mod h1:0fBG6ZJxhqByfFZDwSwpZGzJU671HkwpWaNe2t4VUPI=
go.opentelemetry.io/otel/log v0.14.0 h1:2rzJ+pOAZ8qmZ3DDHg73NEKzSZkhkGIua9gXtxNGgrM=
go.opentelemetry.io/otel/log v0.14.0/go.mod h1:5jRG92fEAgx0SU/vFPxmJvhIuDU9E1SUnEQrMlJpOno=
go.opentelemetry.io/otel/log/logtest v0.14.0 h1:BGTqNeluJDK2uIHAY8lRqxjVAYfqgcaTbVk1n3MWe5A=
go.opentelemetry.io/otel/log/logtest v0.14.0/go.mod h1:IuguGt8XVP4XA4d2oEEDMVDBBCesMg8/tSGWDjuKfoA=
go.opentelemetry.io/otel/metric v1.40.0 h1:rcZe317KPftE2rstWIBitCdVp89A2HqjkxR3c11+p9g=
go.opentelemetry.io/otel/metric v1.40.0/go.mod h1:ib/crwQH7N3r5kfiBZQbwrTge743UDc7DTFVZrrXnqc=
go.opentelemetry.io/otel/sdk v1.40.0 h1:KHW/jUzgo6wsPh9At46+h4upjtccTmuZCFAc9OJ71f8=
go.opentelemetry.io/otel/sdk v1.40.0/go.mod h1:Ph7EFdYvxq72Y8Li9q8KebuYUr2KoeyHx0DRMKrYBUE=
go.opentelemetry.io/otel/sdk/metric v1.40.0 h1:mtmdVqgQkeRxHgRv4qhyJduP3fYJRMX4AtAlbuWdCYw=
go.opentelemetry.io/otel/sdk/metric v1.40.0/go.mod h1:4Z2bGMf0KSK3uRjlczMOeMhKU2rhUqdWNoKcYrtcBPg=
go.opentelemetry.io/otel/trace v1.40.0 h1:WA4etStDttCSYuhwvEa8OP8I5EWu24lkOzp+ZYblVjw=
go.opentelemetry.io/otel/trace v1.40.0/go.mod h1:zeAhriXecNGP/s2SEG3+Y8X9ujcJOTqQ5RgdEJcawiA=
go.opentelemetry.io/otel/metric v1.42.0 h1:2jXG+3oZLNXEPfNmnpxKDeZsFI5o4J+nz6xUlaFdF/4=
go.opentelemetry.io/otel/metric v1.42.0/go.mod h1:RlUN/7vTU7Ao/diDkEpQpnz3/92J9ko05BIwxYa2SSI=
go.opentelemetry.io/otel/sdk v1.42.0 h1:LyC8+jqk6UJwdrI/8VydAq/hvkFKNHZVIWuslJXYsDo=
go.opentelemetry.io/otel/sdk v1.42.0/go.mod h1:rGHCAxd9DAph0joO4W6OPwxjNTYWghRWmkHuGbayMts=
go.opentelemetry.io/otel/sdk/metric v1.42.0 h1:D/1QR46Clz6ajyZ3G8SgNlTJKBdGp84q9RKCAZ3YGuA=
go.opentelemetry.io/otel/sdk/metric v1.42.0/go.mod h1:Ua6AAlDKdZ7tdvaQKfSmnFTdHx37+J4ba8MwVCYM5hc=
go.opentelemetry.io/otel/trace v1.42.0 h1:OUCgIPt+mzOnaUTpOQcBiM/PLQ/Op7oq6g4LenLmOYY=
go.opentelemetry.io/otel/trace v1.42.0/go.mod h1:f3K9S+IFqnumBkKhRJMeaZeNk9epyhnCmQh/EysQCdc=
go.opentelemetry.io/proto/otlp v1.9.0 h1:l706jCMITVouPOqEnii2fIAuO3IVGBRPV5ICjceRb/A=
go.opentelemetry.io/proto/otlp v1.9.0/go.mod h1:xE+Cx5E/eEHw+ISFkwPLwCZefwVjY+pqKg1qcK03+/4=
go.opentelemetry.io/proto/slim/otlp v1.8.0 h1:afcLwp2XOeCbGrjufT1qWyruFt+6C9g5SOuymrSPUXQ=
go.opentelemetry.io/proto/slim/otlp v1.8.0/go.mod h1:Yaa5fjYm1SMCq0hG0x/87wV1MP9H5xDuG/1+AhvBcsI=
go.opentelemetry.io/proto/slim/otlp/collector/profiles/v1development v0.1.0 h1:Uc+elixz922LHx5colXGi1ORbsW8DTIGM+gg+D9V7HE=
Expand Down Expand Up @@ -758,8 +764,8 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/net v0.0.0-20210610132358-84b48f89b13b/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
golang.org/x/net v0.51.0 h1:94R/GTO7mt3/4wIKpcR5gkGmRLOuE/2hNGeWq/GBIFo=
golang.org/x/net v0.51.0/go.mod h1:aamm+2QF5ogm02fjy5Bb7CQ0WMt1/WVM7FtyaTLlA9Y=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.35.0 h1:Mv2mzuHuZuY2+bkyWXIHMfhNdJAdwW3FuWeCPYN5GVQ=
Expand Down Expand Up @@ -850,17 +856,17 @@ google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98
google.golang.org/genproto v0.0.0-20200423170343-7949de9c1215/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20260128011058-8636f8732409 h1:VQZ/yAbAtjkHgH80teYd2em3xtIkkHd7ZhqfH2N9CsM=
google.golang.org/genproto v0.0.0-20260128011058-8636f8732409/go.mod h1:rxKD3IEILWEu3P44seeNOAwZN4SaoKaQ/2eTg4mM6EM=
google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20 h1:7ei4lp52gK1uSejlA8AZl5AJjeLUOHBQscRQZUgAcu0=
google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20/go.mod h1:ZdbssH/1SOVnjnDlXzxDHK2MCidiqXtbYccJNzNYPEE=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20 h1:Jr5R2J6F6qWyzINc+4AM8t5pfUz6beZpHp678GNrMbE=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
google.golang.org/genproto/googleapis/api v0.0.0-20260209200024-4cfbd4190f57 h1:JLQynH/LBHfCTSbDWl+py8C+Rg/k1OVH3xfcaiANuF0=
google.golang.org/genproto/googleapis/api v0.0.0-20260209200024-4cfbd4190f57/go.mod h1:kSJwQxqmFXeo79zOmbrALdflXQeAYcUbgS7PbpMknCY=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260209200024-4cfbd4190f57 h1:mWPCjDEyshlQYzBpMNHaEof6UX1PmHcaUODUywQ0uac=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260209200024-4cfbd4190f57/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.79.1 h1:zGhSi45ODB9/p3VAawt9a+O/MULLl9dpizzNNpq7flY=
google.golang.org/grpc v1.79.1/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
google.golang.org/grpc v1.79.2 h1:fRMD94s2tITpyJGtBBn7MkMseNpOZU8ZxgC3MMBaXRU=
google.golang.org/grpc v1.79.2/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.6.1 h1:/WILD1UcXj/ujCxgoL/DvRgt2CP3txG8+FwkUbb9110=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.6.1/go.mod h1:YNKnb2OAApgYn2oYY47Rn7alMr1zWjb2U8Q0aoGWiNc=
google.golang.org/grpc/examples v0.0.0-20250407062114-b368379ef8f6 h1:ExN12ndbJ608cboPYflpTny6mXSzPrDLh0iTaVrRrds=
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