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Support bucket versioning (#9377)

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- Implement a new xl.json 2.0.0 format to support,
  this moves the entire marshaling logic to POSIX
  layer, top layer always consumes a common FileInfo
  construct which simplifies the metadata reads.
- Implement list object versions
- Migrate to siphash from crchash for new deployments
  for object placements.

Fixes #2111
This commit is contained in:
Harshavardhana
2020-06-12 20:04:01 -07:00
committed by GitHub
parent 43d6e3ae06
commit 4915433bd2
203 changed files with 13833 additions and 6919 deletions
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docs/zh_CN/backend/README.md
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## 后端
Minio目前支持两种类型的后端。
| MinIO | FS | Erasure | Stability |
|:-----------:|:----:|:----:|:---:|
| Standalone | x | x | Stable |
| Distributed | x | x | Stable |
docs/zh_CN/backend/fs/README.md
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### Backend format `fs.json`
```go
// ObjectPartInfo Info of each part kept in the multipart metadata
// file after CompleteMultipartUpload() is called.
type ObjectPartInfo struct {
Number int `json:"number"`
Name string `json:"name"`
ETag string `json:"etag"`
Size int64 `json:"size"`
}
// A fsMetaV1 represents a metadata header mapping keys to sets of values.
type fsMetaV1 struct {
Version string `json:"version"`
Format string `json:"format"`
MinIO struct {
Release string `json:"release"`
} `json:"minio"`
// Metadata map for current object `fs.json`.
Meta map[string]string `json:"meta,omitempty"`
Parts []ObjectPartInfo `json:"parts,omitempty"`
}
```
docs/zh_CN/backend/xl/README.md
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### Backend format `xl.json`
```go
// ObjectPartInfo Info of each part kept in the multipart metadata
// file after CompleteMultipartUpload() is called.
type ObjectPartInfo struct {
Number int `json:"number"`
Name string `json:"name"`
ETag string `json:"etag"`
Size int64 `json:"size"`
}
// checkSumInfo - carries checksums of individual scattered parts per disk.
type checkSumInfo struct {
Name string `json:"name"`
Algorithm string `json:"algorithm"`
Hash string `json:"hash"`
}
// erasureInfo - carries erasure coding related information, block
// distribution and checksums.
type erasureInfo struct {
Algorithm string `json:"algorithm"`
DataBlocks int `json:"data"`
ParityBlocks int `json:"parity"`
BlockSize int64 `json:"blockSize"`
Index int `json:"index"`
Distribution []int `json:"distribution"`
Checksum []checkSumInfo `json:"checksum,omitempty"`
}
// statInfo - carries stat information of the object.
type statInfo struct {
Size int64 `json:"size"` // Size of the object `xl.json`.
ModTime time.Time `json:"modTime"` // ModTime of the object `xl.json`.
}
// A xlMetaV1 represents `xl.json` metadata header.
type xlMetaV1 struct {
Version string `json:"version"` // Version of the current `xl.json`.
Format string `json:"format"` // Format of the current `xl.json`.
Stat statInfo `json:"stat"` // Stat of the current object `xl.json`.
// Erasure coded info for the current object `xl.json`.
Erasure erasureInfo `json:"erasure"`
// MinIO release tag for current object `xl.json`.
MinIO struct {
Release string `json:"release"`
} `json:"minio"`
// Metadata map for current object `xl.json`.
Meta map[string]string `json:"meta,omitempty"`
// Captures all the individual object `xl.json`.
Parts []ObjectPartInfo `json:"parts,omitempty"`
}
```