staleWriters[i] = newBitrotWriter(disk, "", "testbucket", "testobject", erasure.ShardFileSize(test.size), test.algorithm, erasure.ShardSize())
		}

		// test case setup is complete - now call Heal()
		err = erasure.Heal(context.Background(), staleWriters, readers, test.size, nil)
		closeBitrotReaders(readers)
		closeBitrotWriters(staleWriters)
		if err != nil && !test.shouldFail {

		rm -s -f
	docker volume prune -f
}

verify_checksum_after_heal() {
	local sum1
	sum1=$(curl -s "$2" | sha256sum)
	mc admin heal --json -r "$1" >/dev/null # test after healing
	local sum1_heal
	sum1_heal=$(curl -s "$2" | sha256sum)

	if [ "${sum1_heal}" != "${sum1}" ]; then
		echo "mismatch expected ${sum1_heal}, got ${sum1}"
		exit 1
	fi
}

verify_checksum_mc() {
	local expected

	for {
		select {
		case <-GlobalContext.Done():
			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
				}

	errMissingInternalSealAlgorithm = Errorf("The object metadata is missing the internal seal algorithm")

	errInvalidInternalIV            = Errorf("The internal encryption IV is malformed")
	errInvalidInternalSealAlgorithm = Errorf("The internal seal algorithm is invalid and not supported")
)

// errOutOfEntropy indicates that the a source of randomness (PRNG) wasn't able

			// If we have successfully written all the content that was asked
			// by the client, but we still see an error - this would mean
			// that we have some parts or data blocks missing or corrupted
			// - attempt a heal to successfully heal them for future calls.
			if written == partLength {
				var scan madmin.HealScanMode
				switch {
				case errors.Is(err, errFileNotFound):
					scan = madmin.HealNormalScan

			t.Errorf("Test %d: sealed KMS data mismatch: got '%v' - want '%v'", i, kmsKey, test.SealedDataKey)
		}
		if sealedKey.Algorithm != test.SealedKey.Algorithm {
			t.Errorf("Test %d: seal algorithm mismatch: got '%s' - want '%s'", i, sealedKey.Algorithm, test.SealedKey.Algorithm)
		}
		if !bytes.Equal(sealedKey.IV[:], test.SealedKey.IV[:]) {

	fi

	sleep 1
	if pgrep minio; then
		# forcibly killing, to proceed further properly.
		if ! pkill -9 minio; then
			echo "no minio process running anymore, proceed."
		fi
	fi
}

function check_heal() {
	if ! grep -q 'Status:' ${WORK_DIR}/dist-minio-*.log; then
		return 1
	fi

	for ((i = 0; i < 20; i++)); do
		test -f ${WORK_DIR}/$1/1/.minio.sys/format.json
		v1=$?

		},
		[]string{
			// current version
			"version",
			// commit-id of the current version
			"commit",
		},
	)
)

const (
	healMetricsNamespace = "self_heal"
	cacheNamespace       = "cache"
	s3Namespace          = "s3"
	bucketNamespace      = "bucket"
	minioNamespace       = "minio"
	diskNamespace        = "disk"
	interNodeNamespace   = "internode"
)

func init() {

				if err != nil { // Mostly not found error
					// Check if there is a parent device:
					//   e.g. if the mount is based on /dev/nvme0n1p1, let's calculate the
					//        real device name (nvme0n1) to get its sysfs information
					parentDevPath, e := os.Readlink("/sys/class/block/" + devName)
					if e == nil {
						parentDev := filepath.Base(filepath.Dir(parentDevPath))

```
commit 886262e58af77ebc7c836ef587c08544e9a0c271
Author: Harshavardhana <******@****.***>
Date:   Wed Nov 17 15:49:12 2021 -0800

    heal legacy objects when versioning is enabled after upgrade (#13671)
```