// so they should be replaced atomically and not appended to, etc.
// Data is not persisted to disk.
func (sys *BucketMetadataSys) Set(bucket string, meta BucketMetadata) {
	if !isMinioMetaBucketName(bucket) {
		sys.Lock()
		sys.metadataMap[bucket] = meta
		sys.Unlock()
	}
}

			UUID:     "",
			Endpoint: localDrives[i].Endpoint().String(),
			State:    beforeState[i],
		})
	}

	// check dangling and delete bucket only if its not a meta bucket
	if !isMinioMetaBucketName(bucket) && !isAllBucketsNotFound(errs) && opts.Remove {
		g := errgroup.WithNErrs(len(localDrives))
		for index := range localDrives {
			g.Go(func() error {
				if localDrives[index] == nil {

func getKeySeparator() string {
	if runtime.GOOS == globalWindowsOSName {
		return "_"
	}
	return ":"
}

// isMinioBucket returns true if given bucket is a MinIO internal
// bucket and false otherwise.
func isMinioMetaBucketName(bucket string) bool {
	return strings.HasPrefix(bucket, minioMetaBucket)
}

// IsValidBucketName verifies that a bucket name is in accordance with

		{
			bucket: minioMetaTmpBucket,
			result: true,
		},
		// Normal bucket
		{
			bucket: "mybucket",
			result: false,
		},
	}

	for i, test := range testCases {
		actual := isMinioMetaBucketName(test.bucket)
		if actual != test.result {
			t.Errorf("Test %d - expected %v but received %v",
				i+1, test.result, actual)
		}
	}
}

	// Wait for the go routines.
	g.Wait()

	for i, zinfo := range storageInfos {
		if zinfo == nil {
			serverPools[i] = poolAvailableSpace{Index: i}
			continue
		}
		var available uint64
		if !isMinioMetaBucketName(bucket) {
			if avail, err := hasSpaceFor(zinfo, size); err != nil || !avail {
				serverPools[i] = poolAvailableSpace{Index: i}
				continue
			}
		}
		var maxUsedPct int
		for _, disk := range zinfo {