VictoriaMetrics/app/vmagent/native/request_handler.go
Nikolay 0c0efc7781
vmctl verify-blocks command (#2390)
* lib/protoparser: changes ParseStream for native format
uses reader instead of http.Request
updates app/vmagent and app/vmagent method usage

* app/vmctl: add verify-block subcommand
it allows to check exported from VictoriaMetrics data block in native format
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2362

Update app/vmctl/README.md

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
2022-04-05 16:01:32 +02:00

93 lines
3.0 KiB
Go

package native
import (
"net/http"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
parserCommon "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/native"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/writeconcurrencylimiter"
"github.com/VictoriaMetrics/metrics"
)
var (
rowsInserted = metrics.NewCounter(`vmagent_rows_inserted_total{type="native"}`)
rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="native"}`)
rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="native"}`)
)
// InsertHandler processes `/api/v1/import` request.
//
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6
func InsertHandler(at *auth.Token, req *http.Request) error {
extraLabels, err := parserCommon.GetExtraLabels(req)
if err != nil {
return err
}
isGzip := req.Header.Get("Content-Encoding") == "gzip"
return writeconcurrencylimiter.Do(func() error {
return parser.ParseStream(req.Body, isGzip, func(block *parser.Block) error {
return insertRows(at, block, extraLabels)
})
})
}
func insertRows(at *auth.Token, block *parser.Block, extraLabels []prompbmarshal.Label) error {
ctx := common.GetPushCtx()
defer common.PutPushCtx(ctx)
// Update rowsInserted and rowsPerInsert before actual inserting,
// since relabeling can prevent from inserting the rows.
rowsLen := len(block.Values)
rowsInserted.Add(rowsLen)
if at != nil {
rowsTenantInserted.Get(at).Add(rowsLen)
}
rowsPerInsert.Update(float64(rowsLen))
tssDst := ctx.WriteRequest.Timeseries[:0]
labels := ctx.Labels[:0]
samples := ctx.Samples[:0]
mn := &block.MetricName
labelsLen := len(labels)
labels = append(labels, prompbmarshal.Label{
Name: "__name__",
Value: bytesutil.ToUnsafeString(mn.MetricGroup),
})
for j := range mn.Tags {
tag := &mn.Tags[j]
labels = append(labels, prompbmarshal.Label{
Name: bytesutil.ToUnsafeString(tag.Key),
Value: bytesutil.ToUnsafeString(tag.Value),
})
}
labels = append(labels, extraLabels...)
values := block.Values
timestamps := block.Timestamps
if len(timestamps) != len(values) {
logger.Panicf("BUG: len(timestamps)=%d must match len(values)=%d", len(timestamps), len(values))
}
samplesLen := len(samples)
for j, value := range values {
samples = append(samples, prompbmarshal.Sample{
Value: value,
Timestamp: timestamps[j],
})
}
tssDst = append(tssDst, prompbmarshal.TimeSeries{
Labels: labels[labelsLen:],
Samples: samples[samplesLen:],
})
ctx.WriteRequest.Timeseries = tssDst
ctx.Labels = labels
ctx.Samples = samples
remotewrite.PushWithAuthToken(at, &ctx.WriteRequest)
return nil
}