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Independent Multipart Uploads (#15346)

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Do completely independent multipart uploads.

In distributed mode, a lock was held to merge each multipart 
upload as it was added. This lock was highly contested and 
retries are expensive (timewise) in distributed mode.

Instead, each part adds its metadata information uniquely. 
This eliminates the per object lock required for each to merge.
The metadata is read back and merged by "CompleteMultipartUpload" 
without locks when constructing final object.

Co-authored-by: Harshavardhana <harsha@minio.io>
This commit is contained in:
Klaus Post
2022-07-19 08:35:29 -07:00
committed by GitHub
parent 242d06274a
commit f939d1c183
17 changed files with 2134 additions and 931 deletions
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6
cmd/storage-interface.go
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@@ -98,6 +98,7 @@ type StorageAPI interface {
Delete(ctx context.Context, volume string, path string, deleteOpts DeleteOptions) (err error)
VerifyFile(ctx context.Context, volume, path string, fi FileInfo) error
StatInfoFile(ctx context.Context, volume, path string, glob bool) (stat []StatInfo, err error)
ReadMultiple(ctx context.Context, req ReadMultipleReq, resp chan<- ReadMultipleResp) error
// Write all data, syncs the data to disk.
// Should be used for smaller payloads.
@@ -273,3 +274,8 @@ func (p *unrecognizedDisk) ReadAll(ctx context.Context, volume string, path stri
func (p *unrecognizedDisk) StatInfoFile(ctx context.Context, volume, path string, glob bool) (stat []StatInfo, err error) {
return nil, errDiskNotFound
}
func (p *unrecognizedDisk) ReadMultiple(ctx context.Context, req ReadMultipleReq, resp chan<- ReadMultipleResp) error {
close(resp)
return errDiskNotFound
}