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b09272ccac
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1. Avoid storing the last evaluation results outside of rules, check for stale time series as soon as possible; 2. remove duplicated template `Clone()`. This pull request is primarily reducing memory usage when rules produce large volumes of results, as seen in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6894. The CPU time spent on garbage collection remains high and may be addressed in a separate PR.
62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
package datasource
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import (
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"fmt"
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"net/http"
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"time"
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)
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func (c *Client) setVLogsInstantReqParams(r *http.Request, query string, timestamp time.Time) {
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// there is no type path prefix in victorialogs APIs right now, ignore appendTypePrefix.
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if !*disablePathAppend {
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r.URL.Path += "/select/logsql/stats_query"
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}
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q := r.URL.Query()
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// set `time` param explicitly, it will be used as the timestamp of query results.
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q.Set("time", timestamp.Format(time.RFC3339))
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// set the `start` and `end` params if applyIntervalAsTimeFilter is enabled(time filter is missing in the rule expr),
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// so the query will be executed in time range [timestamp - evaluationInterval, timestamp].
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if c.applyIntervalAsTimeFilter && c.evaluationInterval > 0 {
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q.Set("start", timestamp.Add(-c.evaluationInterval).Format(time.RFC3339))
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q.Set("end", timestamp.Format(time.RFC3339))
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}
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r.URL.RawQuery = q.Encode()
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c.setReqParams(r, query)
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}
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func (c *Client) setVLogsRangeReqParams(r *http.Request, query string, start, end time.Time) {
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// there is no type path prefix in victorialogs APIs right now, ignore appendTypePrefix.
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if !*disablePathAppend {
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r.URL.Path += "/select/logsql/stats_query_range"
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}
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q := r.URL.Query()
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q.Add("start", start.Format(time.RFC3339))
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q.Add("end", end.Format(time.RFC3339))
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// set step as evaluationInterval by default
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if c.evaluationInterval > 0 {
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q.Set("step", fmt.Sprintf("%ds", int(c.evaluationInterval.Seconds())))
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}
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r.URL.RawQuery = q.Encode()
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c.setReqParams(r, query)
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}
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func parseVLogsResponse(req *http.Request, resp *http.Response) (res Result, err error) {
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res, err = parsePrometheusResponse(req, resp)
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if err != nil {
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return Result{}, err
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}
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for i := range res.Data {
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m := &res.Data[i]
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for j := range m.Labels {
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// reserve the stats func result name with a new label `stats_result` instead of dropping it,
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// since there could be multiple stats results in a single query, for instance:
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// _time:5m | stats quantile(0.5, request_duration_seconds) p50, quantile(0.9, request_duration_seconds) p90
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if m.Labels[j].Name == "__name__" {
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m.Labels[j].Name = "stats_result"
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break
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}
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}
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}
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return
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}
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