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feat: Add Metrics V3 API (#19068)

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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.
This commit is contained in:
Aditya Manthramurthy
2024-03-10 01:15:15 -08:00
committed by GitHub
parent 2dfa9adc5d
commit b2c5b75efa
24 changed files with 2920 additions and 755 deletions
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6
cmd/tier.go
View File

@@ -158,17 +158,17 @@ var (
}
)
func (t *tierMetrics) Report() []Metric {
func (t *tierMetrics) Report() []MetricV2 {
metrics := getHistogramMetrics(t.histogram, tierTTLBMD, true)
t.RLock()
defer t.RUnlock()
for tier, stat := range t.requestsCount {
metrics = append(metrics, Metric{
metrics = append(metrics, MetricV2{
Description: tierRequestsSuccessMD,
Value: float64(stat.success),
VariableLabels: map[string]string{"tier": tier},
})
metrics = append(metrics, Metric{
metrics = append(metrics, MetricV2{
Description: tierRequestsFailureMD,
Value: float64(stat.failure),
VariableLabels: map[string]string{"tier": tier},