logger.Info("IAM expired STS purge took %.2fs", took)
				}
			}

			// The following actions are performed about once in 4 times that
			// IAM is refreshed:
			if r.Intn(4) == 0 {
				// Poll and remove accounts for those users who were removed
				// from LDAP/OpenID.
				if sys.LDAPConfig.Enabled() {
					sys.purgeExpiredCredentialsForLDAP(ctx)
					sys.updateGroupMembershipsForLDAP(ctx)
				}

		cacheInterval:    1 * time.Minute,
		metricsGroupOpts: opts,
	}
	mg.RegisterRead(func(_ context.Context) []MetricV2 {
		ml := []MetricV2{}

		// metrics pertinent to site replication - overall roll up.
		if globalSiteReplicationSys.isEnabled() {
			m, err := globalSiteReplicationSys.getSiteMetrics(GlobalContext)
			if err != nil {
				metricsLogIf(GlobalContext, err)
				return ml
			}

	LastOnline    time.Time          `json:"lastOnline"`
	Online        bool               `json:"isOnline"`
	Latency       madmin.LatencyStat `json:"latency"`

	// replication metrics across buckets roll up
	ReplicatedSize int64 `json:"replicatedSize"`
	// Total number of completed operations
	ReplicatedCount int64 `json:"replicatedCount"`
	// Failed captures replication errors in various time windows

						continue
					}

					if err = Rename(pathJoin(currentDataPath, entry), pathJoin(legacyDataPath, entry)); err != nil {
						// Any failed rename calls un-roll previous transaction.
						s.deleteFile(dstVolumeDir, legacyDataPath, true, false)

						return res, osErrToFileErr(err)
					}
				}
			}
		}
	}