Lifecycle transition functionality provided in [bucket lifecycle guide](https://github.com/minio/minio/master/docs/bucket/lifecycle/README.md) allows tiering of content from MinIO object store to public clouds or other MinIO clusters.

Transition tiers can be added to MinIO using `mc admin tier add` command to associate a `gcs`, `s3` or `azure` bucket or prefix path on a bucket to the tier name.

		return
	}

	for bucket, usageInfo := range dataUsageInfo.BucketsUsage {
		stat := globalReplicationStats.Load().getLatestReplicationStats(bucket)
		// Total space used by bucket
		ch <- prometheus.MustNewConstMetric(
			prometheus.NewDesc(
				prometheus.BuildFQName(bucketNamespace, "usage", "size"),
				"Total bucket size",
				[]string{"bucket"}, nil),
			prometheus.GaugeValue,

```yaml
replicate:
  apiVersion: v1
  # source of the objects to be replicated
  source:
	type: TYPE # valid values are "minio"
	bucket: BUCKET
	prefix: PREFIX
	# NOTE: if source is remote then target must be "local"
	# endpoint: ENDPOINT
	# credentials:
	#   accessKey: ACCESS-KEY
	#   secretKey: SECRET-KEY

	// Bucket operations.
	MakeBucket(ctx context.Context, bucket string, opts MakeBucketOptions) error
	GetBucketInfo(ctx context.Context, bucket string, opts BucketOptions) (bucketInfo BucketInfo, err error)
	ListBuckets(ctx context.Context, opts BucketOptions) (buckets []BucketInfo, err error)
	DeleteBucket(ctx context.Context, bucket string, opts DeleteBucketOptions) error

	}
	return *resp, nil
}

// LoadBucketMetadata - load bucket metadata
func (client *peerRESTClient) LoadBucketMetadata(ctx context.Context, bucket string) error {
	_, err := loadBucketMetadataRPC.Call(ctx, client.gridConn(), grid.NewMSSWith(map[string]string{
		peerRESTBucket: bucket,
	}))
	return err
}

// DeleteBucketMetadata - Delete bucket metadata

			if !ok {
				return
			}

			// We might land at .metacache, .trash, .multipart
			// no need to heal them skip, only when bucket
			// is '.minio.sys'
			if u.Bucket == minioMetaBucket {
				// No MRF needed for temporary objects
				if wildcard.Match("buckets/*/.metacache/*", u.Object) {
					continue
				}
				if wildcard.Match("tmp/*", u.Object) {
					continue
				}

                <artifactId>exec-maven-plugin</artifactId>
                <version>3.6.3</version>
                <executions>
                    <execution>
                        <id>update-test-buckets</id>
                        <goals>
                            <goal>java</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>

func newPostPolicyBytesV4(credential, bucketName, objectKey string, expiration time.Time) []byte {
	t := UTCNow()
	// Add the expiration date.
	expirationStr := fmt.Sprintf(`"expiration": "%s"`, expiration.Format(iso8601TimeFormat))
	// Add the bucket condition, only accept buckets equal to the one passed.
	bucketConditionStr := fmt.Sprintf(`["eq", "$bucket", "%s"]`, bucketName)

  int allocArrays() {
    Preconditions.checkState(needsAllocArrays(), "Arrays already allocated");

    int expectedSize = metadata;
    int buckets = CompactHashing.tableSize(expectedSize);
    this.table = CompactHashing.createTable(buckets);
    setHashTableMask(buckets - 1);

    this.entries = new int[expectedSize];
    this.keys = new Object[expectedSize];
    this.values = new Object[expectedSize];

	return r.calculateBucketReplicationStats(bucket, bucketStats)
}

func (r *ReplicationStats) incQ(bucket string, sz int64, isDeleteRepl bool, opType replication.Type) {
	r.qCache.Lock()
	defer r.qCache.Unlock()
	v, ok := r.qCache.bucketStats[bucket]
	if !ok {
		v = newInQueueStats(r.registry, bucket)
	}
	atomic.AddInt64(&v.nowBytes, sz)
	atomic.AddInt64(&v.nowCount, 1)