| `minio_api_requests_errors_total`              | `counter` | Total number of requests with (4xx and 5xx) errors      | `name,type,pool_index,server`    |
| `minio_api_requests_5xx_errors_total`          | `counter` | Total number of requests with 5xx errors                | `name,type,pool_index,server`    |

| `minio_s3_requests_rejected_header_total`     | Total number S3 requests rejected for invalid header.    |
| `minio_s3_requests_rejected_invalid_total`    | Total number S3 invalid requests.                        |
| `minio_s3_requests_rejected_timestamp_total`  | Total number S3 requests rejected for invalid timestamp. |

        requests.clear();

        PluginPrefixResult result = processResults(request, trace, results, requests);

        if (result != null) {
            return result;
        }

        // second try, refetch all (possibly outdated) metadata that wasn't updated in the first attempt

  private fun assertConnectionReused(vararg requests: Request?) {
    for (i in requests.indices) {
      val response = client.newCall(requests[i]!!).execute()
      response.body.string() // Discard the response body.
      assertThat(server.takeRequest().sequenceNumber).isEqualTo(i)
    }
  }

  private fun assertConnectionNotReused(vararg requests: Request?) {
    for (request in requests) {

// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member
// of namespaces matches the request's namespace.

// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member
// of namespaces matches the request's namespace.

```
KEY:
api  manage global HTTP API call specific features, such as throttling, authentication types, etc.

ARGS:
requests_max                    (number)    set the maximum number of concurrent requests (default: '0')
requests_deadline               (duration)  set the deadline for API requests waiting to be processed (default: '10s')
cluster_deadline                (duration)  set the deadline for cluster readiness check (default: '10s')

// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member
// of namespaces matches the request's namespace.

// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member
// of namespaces matches the request's namespace.

				}
				h.PutRequest(req)
				stream.Requests <- b
			}
		}()
	} else if stream.Requests != nil {
		xioutil.SafeClose(stream.Requests)
	}

	return &TypedStream[Req, Resp]{responses: stream, newResp: h.NewResponse, Requests: reqT}, nil