updateMetacacheListingRPC      = grid.NewSingleHandler[*metacache, *metacache](grid.HandlerUpdateMetacacheListing, func() *metacache { return &metacache{} }, func() *metacache { return &metacache{} })
	cleanupUploadIDCacheMetaRPC    = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerClearUploadID, grid.NewMSS, grid.NewNoPayload)

	// STREAMS

			return
		case u, ok := <-m.opCh:
			if !ok {
				return
			}

			// We might land at .metacache, .trash, .multipart
			// no need to heal them skip, only when bucket
			// is '.minio.sys'
			if u.Bucket == minioMetaBucket {
				// No MRF needed for temporary objects
				if wildcard.Match("buckets/*/.metacache/*", u.Object) {
					continue
				}
				if wildcard.Match("tmp/*", u.Object) {
					continue
				}

			}
			if entry.isDir() {
				// ignore healing entry.name's with `/` suffix.
				return
			}

			// We might land at .metacache, .trash, .multipart
			// no need to heal them skip, only when bucket
			// is '.minio.sys'
			if bucket == minioMetaBucket {
				if wildcard.Match("buckets/*/.metacache/*", entry.name) {
					return
				}
				if wildcard.Match("tmp/.trash/*", entry.name) {
					return
				}

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"testing"
	"time"
)

var metaCacheTestsetTimestamp = time.Now()

var metaCacheTestset = []metacache{
	0: {
		id:           "case-1-normal",
		bucket:       "bucket",
		root:         "folder/prefix",
		recursive:    false,
		status:       scanStateSuccess,
		fileNotFound: false,
		error:        "",

	StatVol(ctx context.Context, volume string) (vol VolInfo, err error)
	DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error)

	// WalkDir will walk a directory on disk and return a metacache stream on wr.
	WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) error

	// Metadata operations
	DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) error

	}

	// Remove the entire folder in case there are leftovers that didn't get cleaned up before restart.
	go removeAll(pathJoin(diskPath, minioMetaTmpBucket+"-old"))

	// Renames and schedules for purging all bucket metacache.
	go renameAllBucketMetacache(diskPath)
}

// Following error message is added to fix a regression in release
// RELEASE.2018-03-16T22-52-12Z after migrating v1 to v2 to v3. This

		if entry.isDir() {
			return nil
		}
		// We might land at .metacache, .trash, .multipart
		// no need to heal them skip, only when bucket
		// is '.minio.sys'
		if bucket == minioMetaBucket {
			if wildcard.Match("buckets/*/.metacache/*", entry.name) {
				return nil
			}
			if wildcard.Match("tmp/*", entry.name) {
				return nil
			}

package cmd

import (
	"context"
)

const (
	memTotal     = "total"
	memUsed      = "used"
	memFree      = "free"
	memBuffers   = "buffers"
	memCache     = "cache"
	memUsedPerc  = "used_perc"
	memShared    = "shared"
	memAvailable = "available"
)

var (
	memTotalMD     = NewGaugeMD(memTotal, "Total memory on the node")

	mg.descriptorMap = make(map[MetricName]MetricDescriptor, len(mg.Descriptors))
	for _, desc := range mg.Descriptors {
		mg.descriptorMap[desc.Name] = desc
	}
}

// SetCache is a helper to initialize MetricsGroup. It sets the cache object.
func (mg *MetricsGroup) SetCache(c *metricsCache) {
	mg.cache = c

		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",
		readsPerSec:       "Reads per second on a drive",
		writesPerSec:      "Writes per second on a drive",