VictoriaMetrics/app/vmselect/prometheus/query_response.qtpl
Aliaksandr Valialkin ae9b4c94bc
app/vmselect: return stats.seriesFetched as string instead of number
vmalert expects string value for stats.seriesFetched, so it is impossible
switching to number without breaking compatibility with old vmalert releases :(

It is still unclear why stats.seriesFetched has string type in the first place...
2023-11-01 17:49:28 +01:00

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{% import (
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/netstorage"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/promql"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
) %}
{% stripspace %}
QueryResponse generates response for /api/v1/query.
See https://prometheus.io/docs/prometheus/latest/querying/api/#instant-queries
{% func QueryResponse(isPartial bool, rs []netstorage.Result, qt *querytracer.Tracer, qtDone func(), qs *promql.QueryStats) %}
{
{% code seriesCount := len(rs) %}
"status":"success",
"isPartial":{% if isPartial %}true{% else %}false{% endif %},
"data":{
"resultType":"vector",
"result":[
{% if len(rs) > 0 %}
{
"metric": {%= metricNameObject(&rs[0].MetricName) %},
"value": {%= metricRow(rs[0].Timestamps[0], rs[0].Values[0]) %}
}
{% code rs = rs[1:] %}
{% for i := range rs %}
{% code r := &rs[i] %}
,{
"metric": {%= metricNameObject(&r.MetricName) %},
"value": {%= metricRow(r.Timestamps[0], r.Values[0]) %}
}
{% endfor %}
{% endif %}
]
},
"stats":{
{% code
// seriesFetched is string instead of int because of historical reasons.
// It cannot be converted to int without breaking backwards compatibility at vmalert :(
%}
"seriesFetched": "{%dl qs.SeriesFetched %}",
"executionTimeMsec": {%dl qs.ExecutionTimeMsec %}
}
{% code
qt.Printf("generate /api/v1/query response for series=%d", seriesCount)
qtDone()
%}
{%= dumpQueryTrace(qt) %}
}
{% endfunc %}
{% endstripspace %}