- 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.
  - `metric_computation_total`: Number of metric computations. ([#116326](https://github.com/kubernetes/kubernetes/pull/116326), [@sanposhiho](https://github.com/sanposhiho)) [SIG Apps, Autoscaling and Instrumentation]

    @Override
    public String getLoc() {
        return loc;
    }

    /**
     * Sets the location URL of this sitemap entry.
     * @param loc the location URL to set
     */
    public void setLoc(final String loc) {
        this.loc = loc;
    }

    /**
     * Returns the last modification date of this sitemap entry.
     * @return the last modification date
     */
    @Override

  public BigInteger bigIntegerValue() {
    BigInteger bigInt = BigInteger.valueOf(value & UNSIGNED_MASK);
    if (value < 0) {
      bigInt = bigInt.setBit(Long.SIZE - 1);
    }
    return bigInt;
  }

  @Override
  public int compareTo(UnsignedLong o) {
    checkNotNull(o);
    return UnsignedLongs.compare(value, o.value);
  }

  @Override

	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()
	}
	return metrics
}

// keep job metrics for some time after the job is completed
// in-case some one wants to look at the older results.

                RemoteRepository repo = selector.getMirror(RepositoryUtils.toRepo(repository));
                if (repo != null) {
                    Mirror mirror = new Mirror();
                    mirror.setId(repo.getId());
                    mirror.setUrl(repo.getUrl());
                    mirror.setLayout(repo.getContentType());
                    mirror.setBlocked(repo.isBlocked());
                    return mirror;

- Component owner can configure the allowlist of metric label with flag '--allow-metric-labels'. ([#99385](https://github.com/kubernetes/kubernetes/pull/99385), [@YoyinZyc](https://github.com/YoyinZyc)) [SIG API Machinery, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation and Release]

        final String index = fessConfig.getIndexDocumentUpdateIndex();
        for (final String id : ids) {
            bulkRequestBuilder.add(client.prepareUpdate()
                    .setIndex(index)
                    .setId(id)
                    .setScript(new Script(ScriptType.INLINE, scriptLang, scriptCode, params)));
        }
        if (bulkRequestBuilder.numberOfActions() > requestCacheSize) {
            flush();
        }

  /**
   * Returns the number of bytes required to encode these headers using HTTP/1.1. This is also the
   * approximate size of HTTP/2 headers before they are compressed with HPACK. This value is
   * intended to be used as a metric: smaller headers are more efficient to encode and transmit.
   */
  fun byteCount(): Long {
    // Each header name has 2 bytes of overhead for ': ' and every header value has 2 bytes of
    // overhead for '\r\n'.

- Fix etcd_object_counts metric reported by kube-apiserver ([#94818](https://github.com/kubernetes/kubernetes/pull/94818), [@tkashem](https://github.com/tkashem)) [SIG API Machinery]

  
  - `apiserver_authentication_config_controller_last_config_info` metric after successfully loading the authentication configuration file.
  - `apiserver_authorization_config_controller_last_config_info` metric after successfully loading the authorization configuration file.