c.Assert(err, nil)
	c.Assert(n, int64(len([]byte("hello world"))))
	// asserted the contents of the fetched object with the expected result.
	c.Assert(true, bytes.Equal(buffer2.Bytes(), []byte("hello world")))

	// Test the response when object name ends with a slash.
	// This is a special case with size as '0' and object ends with
	// a slash separator, we treat it like a valid operation and
	// return success.

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"archive/tar"
	"bytes"
	"context"
	"encoding/hex"
	"encoding/xml"
	"errors"
	"fmt"
	"io"
	"net/http"

		Name:      errorsTotal,
		Help:      "Total number of S3 requests with (4xx and 5xx) errors",
		Type:      counterMetric,
	}
}

func getS3Requests4xxErrorsMD() MetricDescription {
	return MetricDescription{
		Namespace: s3MetricNamespace,
		Subsystem: requestsSubsystem,
		Name:      "4xx_" + errorsTotal,
		Help:      "Total number of S3 requests with (4xx) errors",
		Type:      counterMetric,
	}
}

		p.mu.RUnlock()
		switch prio {
		case "fast":
			replLogOnceIf(GlobalContext, fmt.Errorf("Unable to keep up with incoming traffic"), string(replicationSubsystem), logger.WarningKind)
		case "slow":
			replLogOnceIf(GlobalContext, fmt.Errorf("Unable to keep up with incoming traffic - we recommend increasing replication priority with `mc admin config set api replication_priority=auto`"), string(replicationSubsystem), logger.WarningKind)
		default:

			peerAddErr = errSRPeerResp(fmt.Errorf("unable to link with peer %s: %w", v.Name, err))
			break
		}
		addedCount++
	}

	if peerAddErr != nil {
		if addedCount == 0 {
			return madmin.ReplicateAddStatus{}, peerAddErr
		}
		// In this case, it means at least one cluster was added
		// successfully, we need to send a response to the client with
		// some details - FIXME: the disks on this cluster would need to

			adminLogIf(ctx, fmt.Errorf("server update failed with %w", err))
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
	}

	err = verifyBinary(u, sha256Sum, releaseInfo, mode, bytes.NewReader(bin))
	if err != nil {
		adminLogIf(ctx, fmt.Errorf("server update failed with %w", err))
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

					if test.expectedErr.Code != errXML.Code {
						t.Errorf("%s, Expected to fail with %s but received %s",
							reqType, test.expectedErr.Code, errXML.Code)
					}
					// in case error is not expected response status should be 200OK.
				} else if rec.Code != http.StatusOK {
					t.Errorf("%s, Expected to succeed with response HTTP status 200OK, but failed with HTTP status code %d.", reqType, rec.Code)
				}
			}
		})
	}