mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
package opentsdbhttp
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import (
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"fmt"
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"net/http"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/common"
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parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdbhttp"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/writeconcurrencylimiter"
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"github.com/VictoriaMetrics/metrics"
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)
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var (
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rowsInserted = metrics.NewCounter(`vm_rows_inserted_total{type="opentsdbhttp"}`)
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rowsPerInsert = metrics.NewHistogram(`vm_rows_per_insert{type="opentsdbhttp"}`)
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)
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// InsertHandler processes HTTP OpenTSDB put requests.
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// See http://opentsdb.net/docs/build/html/api_http/put.html
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func InsertHandler(req *http.Request) error {
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path := req.URL.Path
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switch path {
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case "/api/put":
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return writeconcurrencylimiter.Do(func() error {
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return parser.ParseStream(req, insertRows)
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})
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default:
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return fmt.Errorf("unexpected path requested on HTTP OpenTSDB server: %q", path)
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}
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}
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func insertRows(rows []parser.Row) error {
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ctx := common.GetInsertCtx()
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defer common.PutInsertCtx(ctx)
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ctx.Reset(len(rows))
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for i := range rows {
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r := &rows[i]
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ctx.Labels = ctx.Labels[:0]
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ctx.AddLabel("", r.Metric)
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for j := range r.Tags {
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tag := &r.Tags[j]
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ctx.AddLabel(tag.Key, tag.Value)
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}
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ctx.ApplyRelabeling()
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if len(ctx.Labels) == 0 {
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// Skip metric without labels.
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continue
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}
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ctx.WriteDataPoint(nil, ctx.Labels, r.Timestamp, r.Value)
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}
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rowsInserted.Add(len(rows))
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rowsPerInsert.Update(float64(len(rows)))
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return ctx.FlushBufs()
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}
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