minio/cmd/metrics-v3-system-network.go
Aditya Manthramurthy b2c5b75efa
feat: Add Metrics V3 API (#19068)
Metrics v3 is mainly a reorganization of metrics into smaller groups of
metrics and the removal of internal aggregation of metrics received from
peer nodes in a MinIO cluster.

This change adds the endpoint `/minio/metrics/v3` as the top-level metrics
endpoint and under this, various sub-endpoints are implemented. These
are currently documented in `docs/metrics/v3.md`

The handler will serve metrics at any path
`/minio/metrics/v3/PATH`, as follows:

when PATH is a sub-endpoint listed above => serves the group of
metrics under that path; or when PATH is a (non-empty) parent 
directory of the sub-endpoints listed above => serves metrics
from each child sub-endpoint of PATH. otherwise, returns a no 
resource found error

All available metrics are listed in the `docs/metrics/v3.md`. More will
be added subsequently.
2024-03-10 01:15:15 -08:00

62 lines
2.4 KiB
Go

// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"github.com/minio/minio/internal/rest"
)
const (
internodeErrorsTotal MetricName = "errors_total"
internodeDialErrorsTotal MetricName = "dial_errors_total"
internodeDialAvgTimeNanos MetricName = "dial_avg_time_nanos"
internodeSentBytesTotal MetricName = "sent_bytes_total"
internodeRecvBytesTotal MetricName = "recv_bytes_total"
)
var (
internodeErrorsTotalMD = NewCounterMD(internodeErrorsTotal,
"Total number of failed internode calls")
internodeDialedErrorsTotalMD = NewCounterMD(internodeDialErrorsTotal,
"Total number of internode TCP dial timeouts and errors")
internodeDialAvgTimeNanosMD = NewGaugeMD(internodeDialAvgTimeNanos,
"Average dial time of internode TCP calls in nanoseconds")
internodeSentBytesTotalMD = NewCounterMD(internodeSentBytesTotal,
"Total number of bytes sent to other peer nodes")
internodeRecvBytesTotalMD = NewCounterMD(internodeRecvBytesTotal,
"Total number of bytes received from other peer nodes")
)
// loadNetworkInternodeMetrics - reads internode network metrics.
//
// This is a `MetricsLoaderFn`.
func loadNetworkInternodeMetrics(ctx context.Context, m MetricValues, _ *metricsCache) error {
connStats := globalConnStats.toServerConnStats()
rpcStats := rest.GetRPCStats()
if globalIsDistErasure {
m.Set(internodeErrorsTotal, float64(rpcStats.Errs))
m.Set(internodeDialErrorsTotal, float64(rpcStats.DialErrs))
m.Set(internodeDialAvgTimeNanos, float64(rpcStats.DialAvgDuration))
m.Set(internodeSentBytesTotal, float64(connStats.internodeOutputBytes))
m.Set(internodeRecvBytesTotal, float64(connStats.internodeInputBytes))
}
return nil
}