# Bucket Metrics

MinIO collects the following metrics at the bucket level.
Each metric includes the ``bucket`` label to identify the corresponding bucket.
Metrics may include one or more additional labels, such as the server that calculated that metric.

These metrics can be obtained from any MinIO server once per collection by using the following URL:

      - [Scheduling](#scheduling)
      - [Storage](#storage)
      - [Windows](#windows)
  - [Deprecations and Removals](#deprecations-and-removals)
  - [Metrics Changes](#metrics-changes)
    - [Added metrics](#added-metrics)
    - [Deprecated/changed metrics](#deprecatedchanged-metrics)
  - [Notable Features](#notable-features)
    - [Stable](#stable)
    - [Beta](#beta)
    - [CLI Improvements](#cli-improvements)

- A new kubelet metric `image_pull_duration_seconds` was added. The metric tracks the duration (in seconds) it takes for an image to be pulled, including the time spent in the waiting queue of image puller. The metric is broken down by bucketed image size. ([#121719](https://github.com/kubernetes/kubernetes/pull/121719), [@ruiwen-zhao](https://github.com/ruiwen-zhao))

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.

### Per-bucket Metrics

- Introduced new apiserver metric `apiserver_flowcontrol_current_inqueue_seats`. This metric is analogous to `apiserver_flowcontrol_current_inqueue_requests`, but tracks the total number of seats, as each request can take more than one seat. ([#119385](https://github.com/kubernetes/kubernetes/pull/119385), [@andrewsykim](https://github.com/andrewsykim))

`,
		Example: `  # Retrieve workload metrics for productpage-v1 workload
  istioctl experimental metrics productpage-v1

  # Retrieve workload metrics for various services with custom duration
  istioctl experimental metrics productpage-v1 -d 2m

  # Retrieve workload metrics for various services in the different namespaces
  istioctl experimental metrics productpage-v1.foo reviews-v1.bar ratings-v1.baz`,

	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.31.0
	go.opentelemetry.io/otel/exporters/prometheus v0.53.0
	go.opentelemetry.io/otel/metric v1.31.0
	go.opentelemetry.io/otel/sdk v1.31.0
	go.opentelemetry.io/otel/sdk/metric v1.31.0
	go.opentelemetry.io/otel/trace v1.31.0
	go.opentelemetry.io/proto/otlp v1.3.1
	go.uber.org/atomic v1.11.0
	go.uber.org/zap v1.27.0
	golang.org/x/net v0.30.0

func (m *batchJobMetrics) report(jobID string) (metrics *madmin.BatchJobMetrics) {
	metrics = &madmin.BatchJobMetrics{CollectedAt: time.Now(), Jobs: make(map[string]madmin.JobMetric)}
	m.RLock()
	defer m.RUnlock()

	if jobID != "" {
		if job, ok := m.metrics[jobID]; ok {
			metrics.Jobs[jobID] = job.metric()
		}
		return metrics
	}

	for id, job := range m.metrics {
		metrics.Jobs[id] = job.metric()
	}

)

// loadAPIRequestsHTTPMetrics - reads S3 HTTP metrics.
//
// This is a `MetricsLoaderFn`.
//
// This includes node level S3 HTTP metrics.
//
// This function currently ignores `opts`.
func loadAPIRequestsHTTPMetrics(ctx context.Context, m MetricValues, _ *metricsCache) error {
	// Collect node level S3 HTTP metrics.
	httpStats := globalHTTPStats.toServerHTTPStats(false)

- HPA controller exposes the following metrics from the kube-controller-manager. 
  - `metric_computation_duration_seconds`: The time(seconds) that the HPA controller takes to calculate one metric.