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vmalert: prodvide more details on duplicates (#3136)

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Now vmalert will print the following messages on dupliсates:
```
"recording rule \"record\"; expr: \"up == 1\"; labels: summary={{ value|query }}" is a duplicate within the group "test"
"alerting rule \"alert\"; expr: \"up == 1\"; labels: description={{ value|query }}" is a duplicate within the group "test"
```

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3127
Signed-off-by: hagen1778 <roman@victoriametrics.com>
This commit is contained in:
Roman Khavronenko 2022-09-20 12:52:46 +02:00 committed by Aliaksandr Valialkin
parent 336007182c
commit 74e81d31a7
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1 changed files with 27 additions and 1 deletions
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28
app/vmalert/config/config.go
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@ -77,7 +77,7 @@ func (g *Group) Validate(validateTplFn ValidateTplFn, validateExpressions bool)
ruleName = r.Alert
}
if _, ok := uniqueRules[r.ID]; ok {
return fmt.Errorf("rule %q duplicate", ruleName)
return fmt.Errorf("%q is a duplicate within the group %q", r.String(), g.Name)
}
uniqueRules[r.ID] = struct{}{}
if err := r.Validate(); err != nil {
@ -137,6 +137,32 @@ func (r *Rule) Name() string {
return r.Alert
}
// String implements Stringer interface
func (r *Rule) String() string {
ruleType := "recording"
if r.Alert != "" {
ruleType = "alerting"
}
b := strings.Builder{}
b.WriteString(fmt.Sprintf("%s rule %q", ruleType, r.Name()))
b.WriteString(fmt.Sprintf("; expr: %q", r.Expr))
kv := sortMap(r.Labels)
for i := range kv {
if i == 0 {
b.WriteString("; labels:")
}
b.WriteString(" ")
b.WriteString(kv[i].key)
b.WriteString("=")
b.WriteString(kv[i].value)
if i < len(kv)-1 {
b.WriteString(",")
}
}
return b.String()
}
// HashRule hashes significant Rule fields into
// unique hash that supposed to define Rule uniqueness
func HashRule(r Rule) uint64 {