var (
	memTotalMD     = NewGaugeMD(memTotal, "Total memory on the node")
	memUsedMD      = NewGaugeMD(memUsed, "Used memory on the node")
	memUsedPercMD  = NewGaugeMD(memUsedPerc, "Used memory percentage on the node")
	memFreeMD      = NewGaugeMD(memFree, "Free memory on the node")
	memBuffersMD   = NewGaugeMD(memBuffers, "Buffers memory on the node")
	memCacheMD     = NewGaugeMD(memCache, "Cache memory on the node")

		case <-r.qTimer.C:
			r.qCache.update()
		}
	}
}

// Delete deletes in-memory replication statistics for a bucket.
func (r *ReplicationStats) Delete(bucket string) {
	if r == nil {
		return
	}

	r.Lock()
	defer r.Unlock()
	delete(r.Cache, bucket)
}

// UpdateReplicaStat updates in-memory replica statistics with new values.
func (r *ReplicationStats) UpdateReplicaStat(bucket string, n int64) {

		total:             "Total memory on the node",
		memUsed:           "Used memory on the node",
		memUsedPerc:       "Used memory percentage on the node",
		memFree:           "Free memory on the node",
		memShared:         "Shared memory on the node",
		memBuffers:        "Buffers memory on the node",
		memCache:          "Cache memory on the node",
		memAvailable:      "Available memory on the node",

			maxLimit)
	}

	if err = sys.SetMaxOpenFileLimit(maxLimit, maxLimit); err != nil {
		return err
	}

	// Set max memory limit as current memory limit.
	if _, maxLimit, err = sys.GetMaxMemoryLimit(); err != nil {
		return err
	}

	// set debug memory limit instead of GOMEMLIMIT env
	_ = setDebugMemoryLimit(ctx)

	err = sys.SetMaxMemoryLimit(maxLimit, maxLimit)
	return err
}

		return err
	}

	// Goroutine to periodically save batch-expire job's in-memory state
	saverQuitCh := make(chan struct{})
	go func() {
		saveTicker := time.NewTicker(10 * time.Second)
		defer saveTicker.Stop()
		for {
			select {
			case <-saveTicker.C:
				// persist in-memory state to disk after every 10secs.
				batchLogIf(ctx, ri.updateAfter(ctx, api, 10*time.Second, job))

	Items []madmin.HealResultItem `json:"Items"`
}

// structure to hold state of all heal sequences in server memory
type allHealState struct {
	sync.RWMutex

	// map of heal path to heal sequence
	healSeqMap map[string]*healSequence // Indexed by endpoint
	// keep track of the healing status of disks in the memory
	//   false: the disk needs to be healed but no healing routine is started
	//    true: the disk is currently healing

	}

	cache := store.lock()
	defer store.unlock()

	// We should only update the in-memory cache if there were no changes
	// to the in-memory cache since the disk loading began. If there
	// were changes to the in-memory cache we should wait for the next
	// cycle until we can safely update the in-memory cache.
	//
	// An in-memory cache must be replaced only if we know for sure that the

	// Please write barrier, kick in soon.
	defer debug.SetGCPercent(debug.SetGCPercent(1))

	for i := 0; i < 10000; i++ {
		testCFNumberRef()
		testCFDateRef()
		testCFBooleanRef()
		// Allocate some memory, so eventually the write barrier is enabled
		// and it will see writes of bad pointers in the test* functions below.
		byteSliceSink = make([]byte, 1024)
	}
}

var byteSliceSink []byte

func testCFNumberRef() {

	bytesRead int
}

// Close is a no operation closer
func (r *RequestRecorder) Close() error {
	// no-op
	return nil
}

// Read reads from the internal reader and counts/save the body in the memory
func (r *RequestRecorder) Read(p []byte) (n int, err error) {
	n, err = r.Reader.Read(p)
	r.bytesRead += n

	if r.LogBody {
		r.buf.Write(p[:n])
	}
	if err != nil {
		return n, err
	}
	return n, err

		if len(dui.BucketsUsage) > 0 {
			internalLogOnceIf(GlobalContext, fmt.Errorf("unable to retrieve usage information for bucket: %s, relying on older value cached in-memory: err(%v)", bucket, err), "bucket-usage-cache-"+bucket)
		} else {