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Add a 'canceled' metrics attribute to separate context errors #3566

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Merged
merged 2 commits into from
Oct 29, 2025
Merged

Add a 'canceled' metrics attribute to separate context errors #3566

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29c86b2
Add a 'error_type' metrics attribute to separate context errors
Oct 25, 2025
75ebf3d
Merge branch 'master' into add_canceled_metrics-attr
pvragov Oct 29, 2025
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23 changes: 20 additions & 3 deletions extra/redisotel/metrics.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package redisotel

import (
"context"
"errors"
"fmt"
"net"
"sync"
Expand Down Expand Up @@ -271,9 +272,10 @@ func (mh *metricsHook) DialHook(hook redis.DialHook) redis.DialHook {

dur := time.Since(start)

attrs := make([]attribute.KeyValue, 0, len(mh.attrs)+1)
attrs := make([]attribute.KeyValue, 0, len(mh.attrs)+2)
attrs = append(attrs, mh.attrs...)
attrs = append(attrs, statusAttr(err))
attrs = append(attrs, errorTypeAttribute(err))

mh.createTime.Record(ctx, milliseconds(dur), metric.WithAttributeSet(attribute.NewSet(attrs...)))
return conn, err
Expand All @@ -288,10 +290,11 @@ func (mh *metricsHook) ProcessHook(hook redis.ProcessHook) redis.ProcessHook {

dur := time.Since(start)

attrs := make([]attribute.KeyValue, 0, len(mh.attrs)+2)
attrs := make([]attribute.KeyValue, 0, len(mh.attrs)+3)
attrs = append(attrs, mh.attrs...)
attrs = append(attrs, attribute.String("type", "command"))
attrs = append(attrs, statusAttr(err))
attrs = append(attrs, errorTypeAttribute(err))

mh.useTime.Record(ctx, milliseconds(dur), metric.WithAttributeSet(attribute.NewSet(attrs...)))

Expand All @@ -309,10 +312,11 @@ func (mh *metricsHook) ProcessPipelineHook(

dur := time.Since(start)

attrs := make([]attribute.KeyValue, 0, len(mh.attrs)+2)
attrs := make([]attribute.KeyValue, 0, len(mh.attrs)+3)
attrs = append(attrs, mh.attrs...)
attrs = append(attrs, attribute.String("type", "pipeline"))
attrs = append(attrs, statusAttr(err))
attrs = append(attrs, errorTypeAttribute(err))

mh.useTime.Record(ctx, milliseconds(dur), metric.WithAttributeSet(attribute.NewSet(attrs...)))

Expand All @@ -330,3 +334,16 @@ func statusAttr(err error) attribute.KeyValue {
}
return attribute.String("status", "ok")
}

func errorTypeAttribute(err error) attribute.KeyValue {
switch {
case err == nil:
return attribute.String("error_type", "none")
case errors.Is(err, context.Canceled):
return attribute.String("error_type", "context_canceled")
case errors.Is(err, context.DeadlineExceeded):
return attribute.String("error_type", "context_timeout")
default:
return attribute.String("error_type", "other")
}
}
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