| `minio_cluster_usage_version_total`          | Total number of versions (includes delete marker) in a cluster |
| `minio_cluster_usage_deletemarker_total`     | Total number of delete markers in a cluster                    |
| `minio_cluster_usage_total_bytes`            | Total cluster usage in bytes                                   |

It must be noted that if active-active replication is set up with delete marker replication, there is potential for duplicate delete markers to be created if both source and target concurrently set a Delete Marker or if one/both of the clusters went down at tandem before the replication event was synced.This is an unavoidable side-effect in active-active replication caused by allowing delete markers set on a object version with `REPLICA` status back to source.

					continue
				}

				// any object with only single DEL marker we don't need
				// to decommission, just skip it, this also includes
				// any other versions that have already expired.
				remainingVersions := len(fivs.Versions) - expired
				if version.Deleted && remainingVersions == 1 {
					decommissioned++
					stopFn(errors.New("DELETE marked object with no other non-current versions will be skipped"))
					continue

	const BatchSize = 250 // We process the objects in batches - 250 is a reasonable default.
	var (
		metadata = make([]map[string]string, 0, BatchSize)
		buckets  = make([]string, 0, BatchSize)
		names    = make([]string, 0, BatchSize)
	)
	for len(objects) > 0 {
		N := BatchSize
		if len(objects) < BatchSize {
			N = len(objects)
		}
		batch := objects[:N]

    requiring that modified versions of such material be marked in
    reasonable ways as different from the original version; or

    d) Limiting the use for publicity purposes of names of licensors or
    authors of the material; or

    e) Declining to grant rights under trademark law for use of some
    trade names, trademarks, or service marks; or

    f) Requiring indemnification of licensors and authors of that

		cancel()
		if err != nil {
			retry++
			continue
		}
		conn.Close()
		break
	}

	return host
}

// IsCompressed returns true if the object is marked as compressed.
func (o *ObjectInfo) IsCompressed() bool {
	_, ok := o.UserDefined[ReservedMetadataPrefix+"compression"]
	return ok
}

	}
	pool := &ReplicationPool{
		workers:         make([]chan ReplicationWorkerOperation, 0, workers),
		lrgworkers:      make([]chan ReplicationWorkerOperation, 0, LargeWorkerCount),
		mrfReplicaCh:    make(chan ReplicationWorkerOperation, 100000),
		mrfWorkerKillCh: make(chan struct{}, failedWorkers),
		resyncer:        newresyncer(),
		mrfSaveCh:       make(chan MRFReplicateEntry, 100000),

	if writer.HasWritten() {
		t.Error("WriteOnCloser must not be marked as HasWritten")
	}
	writer.Write(nil)
	if !writer.HasWritten() {
		t.Error("WriteOnCloser must be marked as HasWritten")
	}

	writer = WriteOnClose(io.Discard)
	writer.Close()
	if !writer.HasWritten() {
		t.Error("WriteOnCloser must be marked as HasWritten")
	}
}

// Test for AppendFile.
func TestAppendFile(t *testing.T) {

mkdir -p /tmp/data
for i in $(seq 1 10); do
	echo "T" >/tmp/data/file_${i}.txt
done

./mc mirror /tmp/data sitea/bucket/
./mc version enable sitea/bucket

./mc cp /tmp/data/file_1.txt sitea/bucket/marker
./mc rm sitea/bucket/marker

./mc mb siteb/bucket/
./mc version enable siteb/bucket/

echo "adding replication rule for site a -> site b"
./mc replicate add sitea/bucket/ \

				t.Log("ListObjectVersions, bucket:", testCase.bucketName, "prefix:",
					testCase.prefix, "marker:", testCase.marker, "delimiter:",
					testCase.delimiter, "maxkeys:", testCase.maxKeys)

				resultV, err = obj.ListObjectVersions(context.Background(), testCase.bucketName,
					testCase.prefix, testCase.marker, "", testCase.delimiter, testCase.maxKeys)
			} else {