Each metric endpoint may support multiple child endpoints. For example, the `/v3/system/` metric has multiple child groups as `/v3/system/<child>`. Querying the parent endpoint returns metrics for all child groups. Querying a child group returns only metrics for that child.

import (
	"encoding/json"
	"fmt"
	"net/http"
	"slices"
	"strings"
	"sync"

	"github.com/minio/minio/internal/config"
	"github.com/minio/minio/internal/mcontext"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/env"
	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/promhttp"
)

type promLogger struct{}

func (p promLogger) Println(v ...any) {

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"sync"
	"time"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/cachevalue"
)

// metricsCache - cache for metrics.
//
// When serving metrics, this cache is passed to the MetricsLoaderFn.
//

// `GetBucketCollector` method to get a `BucketCollector` that implements the
// prometheus.Collector interface.
type MetricsGroup struct {
	// Path (relative to the Metrics v3 base endpoint) at which this group of
	// metrics is served. This value is converted into a metric name prefix
	// using `.metricPrefix()` and is added to each metric returned.
	CollectorPath collectorPath

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"strconv"

	"github.com/minio/madmin-go/v3"
)

// label constants
const (
	driveL      = "drive"
	poolIndexL  = "pool_index"
	setIndexL   = "set_index"
	driveIndexL = "drive_index"

	apiL = "api"

	sectorSize = uint64(512)

Shubhendu <******@****.***> 1749069931 +0530

Klaus Post <******@****.***> 1739895955 -0800

	VORVV		V1, V2, V0, V3			// d7812028
	VORVX		X11, V2, V3			// d7c1252a
	VORVX		X11, V2, V0, V3			// d7c12528
	VORVI		$15, V2, V3			// d7b1272a
	VORVI		$15, V2, V0, V3			// d7b12728
	VXORVV		V1, V2, V3			// d781202e
	VXORVV		V1, V2, V0, V3			// d781202c
	VXORVX		X11, V2, V3			// d7c1252e
	VXORVX		X11, V2, V0, V3			// d7c1252c
	VXORVI		$15, V2, V3			// d7b1272e
	VXORVI		$15, V2, V0, V3			// d7b1272c

	VWCVTUXXV	V2, V1, V3			// ERROR "invalid vector mask register"
	VZEXTVF2	V2, V3, V4			// ERROR "invalid vector mask register"
	VSEXTVF2	V2, V3, V4			// ERROR "invalid vector mask register"
	VZEXTVF4	V2, V3, V4			// ERROR "invalid vector mask register"
	VSEXTVF4	V2, V3, V4			// ERROR "invalid vector mask register"
	VZEXTVF8	V2, V3, V4			// ERROR "invalid vector mask register"

    assertTrue(multimap().putAll(k0(), newArrayList(v3(), v4())::iterator));
    assertGet(k0(), v0(), v3(), v4());
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAllNonEmptyCollectionOnPresentKey() {
    assertTrue(multimap().putAll(k0(), newArrayList(v3(), v4())));
    assertGet(k0(), v0(), v3(), v4());
  }

  @MapFeature.Require(SUPPORTS_PUT)