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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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2
cmd/erasure-healing_test.go
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@@ -580,7 +580,7 @@ func TestHealCorrectQuorum(t *testing.T) {
_, err = objLayer.CompleteMultipartUpload(ctx, bucket, object, uploadID, uploadedParts, ObjectOptions{})
if err != nil {
t.Fatalf("Failed to complete multipart upload - %v", err)
t.Fatalf("Failed to complete multipart upload - got: %v", err)
}
cfgFile := pathJoin(bucketMetaPrefix, bucket, ".test.bin")