# Automatic Site Replication

This feature allows multiple independent MinIO sites (or clusters) that are using the same external IDentity Provider (IDP) to be configured as replicas. In this situation the set of replica sites are referred to as peer sites or just sites. When site-replication is enabled on a set of sites, the following changes are replicated to all other sites:

- Creation and deletion of buckets and objects

	if !c.enabled {
		return info, nil
	}

	info.Enabled = true
	info.Name = c.state.Name
	info.Sites = make([]madmin.PeerInfo, 0, len(c.state.Peers))
	for _, peer := range c.state.Peers {
		info.Sites = append(info.Sites, peer)
	}
	sort.Slice(info.Sites, func(i, j int) bool {
		return info.Sites[i].Name < info.Sites[j].Name
	})

	info.ServiceAccountAccessKey = c.state.ServiceAccountAccessKey
	return info, nil
}

./mc ilm rule list sitea/bucket

## Check ilm expiry flag
./mc admin replicate info sitea --json
flag1=$(./mc admin replicate info sitea --json | jq '.sites[0]."replicate-ilm-expiry"')
flag2=$(./mc admin replicate info sitea --json | jq '.sites[1]."replicate-ilm-expiry"')
if [ "$flag1" != "true" ]; then
	echo "BUG: Expected ILM expiry replication not set for 'sitea'"
	exit 1
fi
if [ "$flag2" != "true" ]; then

	if objectAPI == nil {
		return
	}

	var sites []madmin.PeerSite
	if err := parseJSONBody(ctx, r.Body, &sites, cred.SecretKey); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	opts := getSRAddOptions(r)
	status, err := globalSiteReplicationSys.AddPeerClusters(ctx, sites, opts)
	if err != nil {
		adminLogIf(ctx, err)

failover occurs on `GET/HEAD` operations if object or object version requested qualifies for replication and is missing on one site, but present on the other. This allows the applications to take full advantage of two-way replication even before the two sites get fully synced.

In the case of multi destination replication, the replication status shows `COMPLETED` only after the replication operation succeeds on each of the targets specified in the replication configuration. If multiple targets are...

 * This form extends CreateForm to include fields necessary for updating existing web config entries,
 * including tracking information for optimistic locking and audit trails.
 * Web configs define how to crawl and index web sites and web applications.
 *
 */
public class EditForm extends CreateForm {

    /**
     * Creates a new EditForm instance.
     */
    public EditForm() {
        super();
    }

    /**

  ).int()
    .default(DEFAULT_TIMEOUT)

  val followRedirects: Boolean by option("-L", "--location").help("Follow redirects").flag()

  val allowInsecure: Boolean by option("-k", "--insecure").help("Allow connections to SSL sites without certs").flag()

  val showHeaders: Boolean by option("-i", "--include").help("Include protocol headers in the output").flag()

  val showHttp2Frames: Boolean by option("--frames").help("Log HTTP/2 frames to STDERR").flag()

  // PEM files for root certificates of Comodo and Entrust. These two CAs are sufficient to view
  // https://publicobject.com (Comodo) and https://squareup.com (Entrust). But they aren't
  // sufficient to connect to most HTTPS sites including https://godaddy.com and https://visa.com.
  // Typically developers will need to get a PEM file from their organization's TLS administrator.
  val comodoRsaCertificationAuthority =
    """
    -----BEGIN CERTIFICATE-----

test-replication: install-race test-replication-2site test-replication-3site test-delete-replication test-sio-error test-delete-marker-proxying ## verify multi site replication
	@echo "Running tests for replicating three sites"

test-site-replication-ldap: install-race ## verify automatic site replication
	@echo "Running tests for automatic site replication of IAM (with LDAP)"
	@(env bash $(PWD)/docs/site-replication/run-multi-site-ldap.sh)

replication_max_workers         (number)    set the maximum number of replication workers (default: '500')
replication_max_lrg_workers     (number)    set the maximum number of replication workers MinIO uses to replicate large objects between sites. (default: '10')
transition_workers              (number)    set the number of transition workers (default: '100')
stale_uploads_expiry            (duration)  set to expire stale multipart uploads older than this values (default: '24h')