## Upgrading MinIO

Upgrades require zero downtime in MinIO, all upgrades are non-disruptive, all transactions on MinIO are atomic. So upgrading all the servers simultaneously is the recommended way to upgrade MinIO.

import (
	"github.com/minio/minio/internal/bucket/replication"
	"github.com/tinylib/msgp/msgp"
)

// MarshalMsg implements msgp.Marshaler
func (z BackendType) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	o = msgp.AppendInt(o, int(z))
	return
}

// UnmarshalMsg implements msgp.Unmarshaler
func (z *BackendType) UnmarshalMsg(bts []byte) (o []byte, err error) {
	{
		var zb0001 int

// Code generated by github.com/tinylib/msgp DO NOT EDIT.

import (
	"github.com/tinylib/msgp/msgp"
)

// MarshalMsg implements msgp.Marshaler
func (z BucketOptions) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 2
	// string "Deleted"
	o = append(o, 0x82, 0xa7, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x64)
	o = msgp.AppendBool(o, z.Deleted)
	// string "Cached"

		err = msgp.WrapError(err, "LastUpdate")
		return
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z *BucketReplicationResyncStatus) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 4
	// string "v"
	o = append(o, 0x84, 0xa1, 0x76)
	o = msgp.AppendInt(o, z.Version)
	// string "brs"
	o = append(o, 0xa3, 0x62, 0x72, 0x73)

	if err != nil {
		err = msgp.WrapError(err, "N")
		return
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z AccElem) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 3
	// string "Total"
	o = append(o, 0x83, 0xa5, 0x54, 0x6f, 0x74, 0x61, 0x6c)
	o = msgp.AppendInt64(o, z.Total)
	// string "Size"
	o = append(o, 0xa4, 0x53, 0x69, 0x7a, 0x65)

			err = msgp.WrapError(err, "Rules", za0001)
			return
		}
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z *BatchJobExpire) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 6
	// string "APIVersion"
	o = append(o, 0x86, 0xaa, 0x41, 0x50, 0x49, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e)
	o = msgp.AppendString(o, z.APIVersion)
	// string "Bucket"

| *Required*           | *Yes*                                          |

### Version

Indicates STS API version information, the only supported value is '2011-06-15'.  This value is borrowed from AWS STS API documentation for compatibility reasons.

| Params     | Value    |
| :--        | :--      |
| *Type*     | *String* |
| *Required* | *Yes*    |

### DurationSeconds

		err = msgp.WrapError(err, "Context")
		return
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z BatchJobKeyRotateEncryption) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 3
	// string "Type"
	o = append(o, 0x83, 0xa4, 0x54, 0x79, 0x70, 0x65)
	o = msgp.AppendString(o, string(z.Type))
	// string "Key"
	o = append(o, 0xa3, 0x4b, 0x65, 0x79)

			err = msgp.WrapError(err, "MinioEnv", za0002)
			return
		}
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z *ServerSystemConfig) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 3
	// string "NEndpoints"
	o = append(o, 0x83, 0xaa, 0x4e, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x73)
	o = msgp.AppendInt(o, z.NEndpoints)
	// string "CmdLines"

workloads typically interact with object stores in the same way they do with HDFS. These workloads rely on HDFS atomic rename functionality to complete writing data to the datastore. Object storage operations are atomic by nature and they do not require/implement rename API. The default S3A committer emulates renames through copy and delete APIs. This interaction pattern causes significant loss of performance because of the write amplification. _Netflix_, for example, developed two new staging committers...