if (Constants.CRAWLER_STATUS.equals(key)) {
                    statusMap.put(key, value);
                }
            }

            @Override
            public Map<String, String> getInfoMap(String sessionId) {
                Map<String, String> result = new HashMap<>(infoMap);
                result.putAll(statusMap);
                return result;
            }
        };

type VersionPurgeStatusType = replication.VersionPurgeStatusType

type replicationResyncer struct {
	// map of bucket to their resync status
	statusMap      map[string]BucketReplicationResyncStatus
	workerSize     int
	resyncCancelCh chan struct{}
	workerCh       chan struct{}
	sync.RWMutex
}

const (
	replicationDir      = ".replication"