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")
	memUsedMD      = NewGaugeMD(memUsed, "Used memory on the node")

and furthermore provides reuse of the structs used for the request and response.

Note that Responses sent for serialization are automatically reused for similar requests.
If the response contains shared data it will cause issues, since each unique response is reused.
To disable this behavior, use `(SingleHandler).WithSharedResponse()` to disable it.

## Streaming Requests

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package mcontext

// Share a common context information between different
// packages in github.com/minio/minio

import (
	xhttp "github.com/minio/minio/internal/http"
)

// ContextTraceType represents the type of golang Context key

	"hash"
	"io"
)

// Implementation to calculate bitrot for the whole file.
type wholeBitrotWriter struct {
	disk      StorageAPI
	volume    string
	filePath  string
	shardSize int64 // This is the shard size of the erasure logic
	hash.Hash       // For bitrot hash
}

func (b *wholeBitrotWriter) Write(p []byte) (int, error) {
	err := b.disk.AppendFile(context.TODO(), b.volume, b.filePath, p)
	if err != nil {

		purge "${MC_BUILD_DIR}"
		exit 1
	fi

	(cd "${MC_BUILD_DIR}" && go build -o "$WORK_DIR/mc")

	# remove mc source.
	purge "${MC_BUILD_DIR}"

	shred -n 1 -s 1M - 1>"$FILE_1_MB" 2>/dev/null
	shred -n 1 -s 65M - 1>"$FILE_65_MB" 2>/dev/null

	## version is purposefully set to '3' for minio to migrate configuration file

	switch {
	case flag&syscall.O_CREAT == syscall.O_CREAT:
		createflag = syscall.OPEN_ALWAYS
	default:
		createflag = syscall.OPEN_EXISTING
	}

	shareflag := uint32(syscall.FILE_SHARE_READ | syscall.FILE_SHARE_WRITE | syscall.FILE_SHARE_DELETE)
	accessAttr := uint32(syscall.FILE_ATTRIBUTE_NORMAL | 0x80000000)

	fd, err := syscall.CreateFile(pathp, access, shareflag, nil, createflag, accessAttr, 0)
	if err != nil {

## What is Erasure Code?

Erasure code is a mathematical algorithm to reconstruct missing or corrupted data. MinIO uses Reed-Solomon code to shard objects into variable data and parity blocks. For example, in a 12 drive setup, an object can be sharded to a variable number of data and parity blocks across all the drives - ranging from six data and six parity blocks to ten data and two parity blocks.

			Description: `namespace prefix to isolate tenants` + defaultHelpPostfix(PathPrefix),
			Optional:    true,
			Type:        "path",
		},
		config.HelpKV{
			Key:         CoreDNSPath,
			Description: `shared bucket DNS records` + defaultHelpPostfix(CoreDNSPath),
			Optional:    true,
			Type:        "path",
		},
		config.HelpKV{
			Key:         ClientCert,

			if test.reconstructParity {
				for j := range decoded {
					if decoded[j] == nil {
						t.Errorf("Test %d: failed to reconstruct shard %d", i, j)
					}
				}
			} else {
				for j := range decoded[:test.dataBlocks] {
					if decoded[j] == nil {
						t.Errorf("Test %d: failed to reconstruct data shard %d", i, j)
					}
				}
			}

			decodedData := new(bytes.Buffer)

echo -n "Preparing test data ..."
mkdir -p /tmp/data
echo "Hello world" >/tmp/data/plainfile
echo "Hello from encrypted world" >/tmp/data/encrypted
touch /tmp/data/defpartsize
shred -s 500M /tmp/data/defpartsize
touch /tmp/data/custpartsize
shred -s 500M /tmp/data/custpartsize
echo "done"

# Add replication site
./mc admin replicate add minio1 minio2 --insecure
# sleep for replication to complete
sleep 30