minio/cmd/object-api-datatypes.go
Poorna Krishnamoorthy 47c09a1e6f
Various improvements in replication (#11949)
- collect real time replication metrics for prometheus.
- add pending_count, failed_count metric for total pending/failed replication operations.

- add API to get replication metrics

- add MRF worker to handle spill-over replication operations

- multiple issues found with replication
- fixes an issue when client sends a bucket
 name with `/` at the end from SetRemoteTarget
 API call make sure to trim the bucket name to 
 avoid any extra `/`.

- hold write locks in GetObjectNInfo during replication
  to ensure that object version stack is not overwritten
  while reading the content.

- add additional protection during WriteMetadata() to
  ensure that we always write a valid FileInfo{} and avoid
  ever writing empty FileInfo{} to the lowest layers.

Co-authored-by: Poorna Krishnamoorthy <poorna@minio.io>
Co-authored-by: Harshavardhana <harsha@minio.io>
2021-04-03 09:03:42 -07:00

470 lines
14 KiB
Go

/*
* MinIO Cloud Storage, (C) 2016, 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"io"
"math"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/minio/minio/pkg/bucket/replication"
"github.com/minio/minio/pkg/hash"
"github.com/minio/minio/pkg/madmin"
)
// 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
// 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
}
// 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"`
}