minio/cmd/object-api-datatypes.go
Aditya Manthramurthy 30a3921d3e
[Tiering] Support remote tiers with object versioning (#12342)
- Adds versioning support for S3 based remote tiers that have versioning
enabled. This ensures that when reading or deleting we specify the specific
version ID of the object. In case of deletion, this is important to ensure that
the object version is actually deleted instead of simply being marked for
deletion.

- Stores the remote object's version id in the tier-journal. Tier-journal file
version is not bumped up as serializing the new struct version is
compatible with old journals without the remote object version id.

- `storageRESTVersion` is bumped up as FileInfo struct now includes a
`TransitionRemoteVersionID` member.

- Azure and GCS support for this feature will be added subsequently.

Co-authored-by: Krishnan Parthasarathi <krisis@users.noreply.github.com>
2021-06-03 14:26:51 -07:00

485 lines
14 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// 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 cmd
import (
"io"
"math"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/minio/madmin-go"
"github.com/minio/minio/internal/bucket/replication"
"github.com/minio/minio/internal/hash"
)
// BackendType - represents different backend types.
type BackendType int
// Enum for different backend types.
const (
Unknown = BackendType(madmin.Unknown)
// Filesystem backend.
BackendFS = BackendType(madmin.FS)
// Multi disk BackendErasure (single, distributed) backend.
BackendErasure = BackendType(madmin.Erasure)
// Gateway backend.
BackendGateway = BackendType(madmin.Gateway)
// Add your own backend.
)
// StorageInfo - represents total capacity of underlying storage.
type StorageInfo = madmin.StorageInfo
// objectHistogramInterval is an interval that will be
// used to report the histogram of objects data sizes
type objectHistogramInterval struct {
name string
start, end int64
}
const (
// dataUsageBucketLen must be length of ObjectsHistogramIntervals
dataUsageBucketLen = 7
)
// ObjectsHistogramIntervals is the list of all intervals
// of object sizes to be included in objects histogram.
var ObjectsHistogramIntervals = []objectHistogramInterval{
{"LESS_THAN_1024_B", 0, humanize.KiByte - 1},
{"BETWEEN_1024_B_AND_1_MB", humanize.KiByte, humanize.MiByte - 1},
{"BETWEEN_1_MB_AND_10_MB", humanize.MiByte, humanize.MiByte*10 - 1},
{"BETWEEN_10_MB_AND_64_MB", humanize.MiByte * 10, humanize.MiByte*64 - 1},
{"BETWEEN_64_MB_AND_128_MB", humanize.MiByte * 64, humanize.MiByte*128 - 1},
{"BETWEEN_128_MB_AND_512_MB", humanize.MiByte * 128, humanize.MiByte*512 - 1},
{"GREATER_THAN_512_MB", humanize.MiByte * 512, math.MaxInt64},
}
// BucketInfo - represents bucket metadata.
type BucketInfo struct {
// Name of the bucket.
Name string
// Date and time when the bucket was created.
Created time.Time
}
// ObjectInfo - represents object metadata.
type ObjectInfo struct {
// Name of the bucket.
Bucket string
// Name of the object.
Name string
// Date and time when the object was last modified.
ModTime time.Time
// Total object size.
Size int64
// IsDir indicates if the object is prefix.
IsDir bool
// Hex encoded unique entity tag of the object.
ETag string
// The ETag stored in the gateway backend
InnerETag string
// Version ID of this object.
VersionID string
// IsLatest indicates if this is the latest current version
// latest can be true for delete marker or a version.
IsLatest bool
// DeleteMarker indicates if the versionId corresponds
// to a delete marker on an object.
DeleteMarker bool
// TransitionStatus indicates if transition is complete/pending
TransitionStatus string
// Name of transitioned object on remote tier
transitionedObjName string
// VersionID on the the remote tier
transitionVersionID string
// Name of remote tier object has transitioned to
TransitionTier string
// RestoreExpires indicates date a restored object expires
RestoreExpires time.Time
// RestoreOngoing indicates if a restore is in progress
RestoreOngoing bool
// A standard MIME type describing the format of the object.
ContentType string
// Specifies what content encodings have been applied to the object and thus
// what decoding mechanisms must be applied to obtain the object referenced
// by the Content-Type header field.
ContentEncoding string
// Date and time at which the object is no longer able to be cached
Expires time.Time
// CacheStatus sets status of whether this is a cache hit/miss
CacheStatus CacheStatusType
// CacheLookupStatus sets whether a cacheable response is present in the cache
CacheLookupStatus CacheStatusType
// Specify object storage class
StorageClass string
ReplicationStatus replication.StatusType
// User-Defined metadata
UserDefined map[string]string
// User-Defined object tags
UserTags string
// List of individual parts, maximum size of upto 10,000
Parts []ObjectPartInfo `json:"-"`
// Implements writer and reader used by CopyObject API
Writer io.WriteCloser `json:"-"`
Reader *hash.Reader `json:"-"`
PutObjReader *PutObjReader `json:"-"`
metadataOnly bool
versionOnly bool // adds a new version, only used by CopyObject
keyRotation bool
// Date and time when the object was last accessed.
AccTime time.Time
Legacy bool // indicates object on disk is in legacy data format
// backendType indicates which backend filled this structure
backendType BackendType
VersionPurgeStatus VersionPurgeStatusType
// The total count of all versions of this object
NumVersions int
// The modtime of the successor object version if any
SuccessorModTime time.Time
}
// Clone - Returns a cloned copy of current objectInfo
func (o ObjectInfo) Clone() (cinfo ObjectInfo) {
cinfo = ObjectInfo{
Bucket: o.Bucket,
Name: o.Name,
ModTime: o.ModTime,
Size: o.Size,
IsDir: o.IsDir,
ETag: o.ETag,
InnerETag: o.InnerETag,
VersionID: o.VersionID,
IsLatest: o.IsLatest,
DeleteMarker: o.DeleteMarker,
TransitionStatus: o.TransitionStatus,
RestoreExpires: o.RestoreExpires,
RestoreOngoing: o.RestoreOngoing,
ContentType: o.ContentType,
ContentEncoding: o.ContentEncoding,
Expires: o.Expires,
CacheStatus: o.CacheStatus,
CacheLookupStatus: o.CacheLookupStatus,
StorageClass: o.StorageClass,
ReplicationStatus: o.ReplicationStatus,
UserTags: o.UserTags,
Parts: o.Parts,
Writer: o.Writer,
Reader: o.Reader,
PutObjReader: o.PutObjReader,
metadataOnly: o.metadataOnly,
versionOnly: o.versionOnly,
keyRotation: o.keyRotation,
backendType: o.backendType,
AccTime: o.AccTime,
Legacy: o.Legacy,
VersionPurgeStatus: o.VersionPurgeStatus,
NumVersions: o.NumVersions,
SuccessorModTime: o.SuccessorModTime,
}
cinfo.UserDefined = make(map[string]string, len(o.UserDefined))
for k, v := range o.UserDefined {
cinfo.UserDefined[k] = v
}
return cinfo
}
// ReplicateObjectInfo represents object info to be replicated
type ReplicateObjectInfo struct {
ObjectInfo
OpType replication.Type
RetryCount uint32
ResetID string
}
// MultipartInfo captures metadata information about the uploadId
// this data structure is used primarily for some internal purposes
// for verifying upload type such as was the upload
// - encrypted
// - compressed
type MultipartInfo struct {
// Name of the bucket.
Bucket string
// Name of the object.
Object string
// Upload ID identifying the multipart upload whose parts are being listed.
UploadID string
// Date and time at which the multipart upload was initiated.
Initiated time.Time
// Any metadata set during InitMultipartUpload, including encryption headers.
UserDefined map[string]string
}
// ListPartsInfo - represents list of all parts.
type ListPartsInfo struct {
// Name of the bucket.
Bucket string
// Name of the object.
Object string
// Upload ID identifying the multipart upload whose parts are being listed.
UploadID string
// The class of storage used to store the object.
StorageClass string
// Part number after which listing begins.
PartNumberMarker int
// When a list is truncated, this element specifies the last part in the list,
// as well as the value to use for the part-number-marker request parameter
// in a subsequent request.
NextPartNumberMarker int
// Maximum number of parts that were allowed in the response.
MaxParts int
// Indicates whether the returned list of parts is truncated.
IsTruncated bool
// List of all parts.
Parts []PartInfo
// Any metadata set during InitMultipartUpload, including encryption headers.
UserDefined map[string]string
}
// Lookup - returns if uploadID is valid
func (lm ListMultipartsInfo) Lookup(uploadID string) bool {
for _, upload := range lm.Uploads {
if upload.UploadID == uploadID {
return true
}
}
return false
}
// ListMultipartsInfo - represnets bucket resources for incomplete multipart uploads.
type ListMultipartsInfo struct {
// Together with upload-id-marker, this parameter specifies the multipart upload
// after which listing should begin.
KeyMarker string
// Together with key-marker, specifies the multipart upload after which listing
// should begin. If key-marker is not specified, the upload-id-marker parameter
// is ignored.
UploadIDMarker string
// When a list is truncated, this element specifies the value that should be
// used for the key-marker request parameter in a subsequent request.
NextKeyMarker string
// When a list is truncated, this element specifies the value that should be
// used for the upload-id-marker request parameter in a subsequent request.
NextUploadIDMarker string
// Maximum number of multipart uploads that could have been included in the
// response.
MaxUploads int
// Indicates whether the returned list of multipart uploads is truncated. A
// value of true indicates that the list was truncated. The list can be truncated
// if the number of multipart uploads exceeds the limit allowed or specified
// by max uploads.
IsTruncated bool
// List of all pending uploads.
Uploads []MultipartInfo
// When a prefix is provided in the request, The result contains only keys
// starting with the specified prefix.
Prefix string
// A character used to truncate the object prefixes.
// NOTE: only supported delimiter is '/'.
Delimiter string
// CommonPrefixes contains all (if there are any) keys between Prefix and the
// next occurrence of the string specified by delimiter.
CommonPrefixes []string
EncodingType string // Not supported yet.
}
// DeletedObjectInfo - container for list objects versions deleted objects.
type DeletedObjectInfo struct {
// Name of the bucket.
Bucket string
// Name of the object.
Name string
// Date and time when the object was last modified.
ModTime time.Time
// Version ID of this object.
VersionID string
// Indicates the deleted marker is latest
IsLatest bool
}
// ListObjectVersionsInfo - container for list objects versions.
type ListObjectVersionsInfo struct {
// Indicates whether the returned list objects response is truncated. A
// value of true indicates that the list was truncated. The list can be truncated
// if the number of objects exceeds the limit allowed or specified
// by max keys.
IsTruncated bool
// When response is truncated (the IsTruncated element value in the response is true),
// you can use the key name in this field as marker in the subsequent
// request to get next set of objects.
//
// NOTE: AWS S3 returns NextMarker only if you have delimiter request parameter specified,
// MinIO always returns NextMarker.
NextMarker string
// NextVersionIDMarker may be set of IsTruncated is true
NextVersionIDMarker string
// List of objects info for this request.
Objects []ObjectInfo
// List of prefixes for this request.
Prefixes []string
}
// ListObjectsInfo - container for list objects.
type ListObjectsInfo struct {
// Indicates whether the returned list objects response is truncated. A
// value of true indicates that the list was truncated. The list can be truncated
// if the number of objects exceeds the limit allowed or specified
// by max keys.
IsTruncated bool
// When response is truncated (the IsTruncated element value in the response is true),
// you can use the key name in this field as marker in the subsequent
// request to get next set of objects.
//
// NOTE: AWS S3 returns NextMarker only if you have delimiter request parameter specified,
// MinIO always returns NextMarker.
NextMarker string
// List of objects info for this request.
Objects []ObjectInfo
// List of prefixes for this request.
Prefixes []string
}
// ListObjectsV2Info - container for list objects version 2.
type ListObjectsV2Info struct {
// Indicates whether the returned list objects response is truncated. A
// value of true indicates that the list was truncated. The list can be truncated
// if the number of objects exceeds the limit allowed or specified
// by max keys.
IsTruncated bool
// When response is truncated (the IsTruncated element value in the response
// is true), you can use the key name in this field as marker in the subsequent
// request to get next set of objects.
//
// NOTE: This element is returned only if you have delimiter request parameter
// specified.
ContinuationToken string
NextContinuationToken string
// List of objects info for this request.
Objects []ObjectInfo
// List of prefixes for this request.
Prefixes []string
}
// PartInfo - represents individual part metadata.
type PartInfo struct {
// Part number that identifies the part. This is a positive integer between
// 1 and 10,000.
PartNumber int
// Date and time at which the part was uploaded.
LastModified time.Time
// Entity tag returned when the part was initially uploaded.
ETag string
// Size in bytes of the part.
Size int64
// Decompressed Size.
ActualSize int64
}
// CompletePart - represents the part that was completed, this is sent by the client
// during CompleteMultipartUpload request.
type CompletePart struct {
// Part number identifying the part. This is a positive integer between 1 and
// 10,000
PartNumber int
// Entity tag returned when the part was uploaded.
ETag string
}
// CompletedParts - is a collection satisfying sort.Interface.
type CompletedParts []CompletePart
func (a CompletedParts) Len() int { return len(a) }
func (a CompletedParts) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a CompletedParts) Less(i, j int) bool { return a[i].PartNumber < a[j].PartNumber }
// CompleteMultipartUpload - represents list of parts which are completed, this is sent by the
// client during CompleteMultipartUpload request.
type CompleteMultipartUpload struct {
Parts []CompletePart `xml:"Part"`
}