const (
	siteResyncPrefix = bucketMetaPrefix + "/site-replication/resync"
)

type resyncState struct {
	resyncID  string
	LastSaved time.Time
}

//msgp:ignore siteResyncMetrics
type siteResyncMetrics struct {
	sync.RWMutex
	// resyncStatus maps resync ID to resync status for peer
	resyncStatus map[string]SiteResyncStatus
	// map peer deployment ID to resync ID
	peerResyncMap map[string]resyncState
}

	arn          string
	resyncID     string
	resyncBefore time.Time
}

// ResyncStatusType status of resync operation
type ResyncStatusType int

const (
	// NoResync - no resync in progress
	NoResync ResyncStatusType = iota
	// ResyncPending - resync pending
	ResyncPending
	// ResyncCanceled - resync canceled
	ResyncCanceled
	// ResyncStarted -  resync in progress
	ResyncStarted

		}

		p.resyncer.Lock()
		p.resyncer.statusMap[bucket] = meta
		p.resyncer.Unlock()

		tgts := meta.cloneTgtStats()
		for arn, st := range tgts {
			switch st.ResyncStatus {
			case ResyncFailed, ResyncStarted, ResyncPending:
				go p.resyncer.resyncBucket(ctx, objAPI, true, resyncOpts{
					bucket:       bucket,
					arn:          arn,
					resyncID:     st.ResyncID,

		OpType:   "start",
		ResyncID: rs.ResyncID,
		Buckets:  res.Buckets,
	}
	if len(res.Buckets) > 0 {
		res.ErrDetail = "partial failure in starting site resync"
	}
	if len(buckets) != 0 && len(res.Buckets) == len(buckets) {
		return res, fmt.Errorf("all buckets resync failed")
	}
	return res, nil
}

// cancelResync stops an ongoing site level resync for the peer specified.

replicate objects one at a time so as not to impede server load. Ideally, resync should not be initiated for multiple buckets simultaneously - progress of the syncing can be monitored by looking at `mc replicate resync status alias/bucket --remote-bucket <arn>`. In the event that resync operation failed to replicate some versions, they would be picked up by the healing mechanism in-built as part of the scanner. If the resync operation reports a failed status or in the event of a cluster restart while...

replicated objects to the DR cluster need to be re-replicated, `mc replicate resync start alias/bucket --remote-bucket <arn>` can be used to initiate a reset. This would initiate a re-sync between the two clusters by walking the bucket namespace and replicating eligible objects that satisfy the existing objects replication rule specified in the replication config. The status of the resync operation can be viewed with `mc replicate resync status alias/bucket --remote-bucket <arn>`.

Note that Ex...

		adminLogIf(ctx, err)
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}
}

// SiteReplicationResyncOp - PUT /minio/admin/v3/site-replication/resync/op
func (a adminAPIHandlers) SiteReplicationResyncOp(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.SiteReplicationResyncAction)
	if objectAPI == nil {

            }

            /* out of phase maybe? */
            /* inch forward 1 byte and try again */
            for (int i = 0; i < 35; i++) {
                log.warn("Possibly out of phase, trying to resync " + Hexdump.toHexString(this.sbuf, 0, 16));
                this.sbuf[i] = this.sbuf[i + 1];
            }
            int b = this.in.read();
            if (b == -1) {
                return null;
            }

  a bug in the transforming informer during the Resync operation, 
  by making the transforming function idempotent. ([#124352](https://github.com/kubernetes/kubernetes/pull/124352), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Scheduling]