* Docker Compose
* Docker in Swarm Mode
* Systemd
* Supervisor
* Handled internally by a cloud provider as part of their services
* Others...

## Replication - Processes and Memory { #replication-processes-and-memory }

With a FastAPI application, using a server program like the `fastapi` command that runs Uvicorn, running it once in **one process** can serve multiple clients concurrently.

sleep 5

./mc admin user info minio2 "uid=dillon,ou=people,ou=swengg,dc=min,dc=io"
./mc admin user info minio3 "uid=dillon,ou=people,ou=swengg,dc=min,dc=io"
./mc admin policy create minio1 rw ./docs/site-replication/rw.json

sleep 5
./mc admin policy info minio2 rw >/dev/null 2>&1
./mc admin policy info minio3 rw >/dev/null 2>&1

./mc admin policy remove minio3 rw

sleep 10
./mc admin policy info minio1 rw

		return
	}

	if globalSiteReplicationSys.isEnabled() && !v.Enabled() {
		writeErrorResponse(ctx, w, APIError{
			Code:           "InvalidBucketState",
			Description:    "Cluster replication is enabled on this site, versioning cannot be suspended on bucket.",
			HTTPStatusCode: http.StatusBadRequest,
		}, r.URL)
		return
	}

Without using containers, making applications run on startup and with restarts can be cumbersome and difficult. But when **working with containers** in most cases that functionality is included by default. ✨

## Replication - Number of Processes { #replication-number-of-processes }

- Replicate objects between buckets on multiple sites

Upcoming Jobs

- Copy objects from NAS to MinIO
- Copy objects from HDFS to MinIO

## Replication Job
To perform replication via batch jobs, you create a job. The job consists of a job description YAML that describes

- Source location from where the objects must be copied from
- Target location from where the objects must be copied to

ը�PartASizes��	ը�Size�	ը�MTime�����çMetaSys��x-minio-internal-replica-status�REPLICA�"x-minio-internal-replica-timestamp�2022-03-20T15:15:01.584169645Z�MetaUsr��etag� 9587ddd31fead633830366f45d221d56�content-type�application/octet-stream�x-amz-storage-class�STANDARD�X-Amz-Replication-Status�REPLICA�sCݲ...

func (opts Config) ExpirationWait() time.Duration {
	configMu.RLock()
	defer configMu.RUnlock()

	return opts.ExpirationWorkersWait
}

// ReplicationWait returns the duration for which a batch replication worker
// would wait before working on next object.
func (opts Config) ReplicationWait() time.Duration {
	configMu.RLock()
	defer configMu.RUnlock()

	return opts.ReplicationWorkersWait
}

	}
	return meta.quotaConfig, meta.QuotaConfigUpdatedAt, nil
}

// GetReplicationConfig returns configured bucket replication config
// The returned object may not be modified.
func (sys *BucketMetadataSys) GetReplicationConfig(ctx context.Context, bucket string) (*replication.Config, time.Time, error) {
	meta, reloaded, err := sys.GetConfig(ctx, bucket)
	if err != nil {
		if errors.Is(err, errConfigNotFound) {

	})
	return mg
}

// replication metrics for site replication
func getReplicationSiteMetrics(opts MetricsGroupOpts) *MetricsGroupV2 {
	mg := &MetricsGroupV2{
		cacheInterval:    1 * time.Minute,
		metricsGroupOpts: opts,
	}
	mg.RegisterRead(func(_ context.Context) []MetricV2 {
		ml := []MetricV2{}

		// metrics pertinent to site replication - overall roll up.

./mc ls minioadm/
if [ $? -ne 0 ]; then
	echo "listing failed, 'minioadmin' should be enabled"
	exit 1
fi

killall -9 minio

rm -rf /tmp/multisitea/
rm -rf /tmp/multisiteb/

echo "Setup site-replication and then disable root credentials"

minio server --address 127.0.0.1:9001 "http://127.0.0.1:9001/tmp/multisitea/data/disterasure/xl{1...4}" \