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remove checkBucketExist check entirely to avoid fan-out calls (#18917)

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Each Put, List, Multipart operations heavily rely on making
GetBucketInfo() call to verify if bucket exists or not on
a regular basis. This has a large performance cost when there
are tons of servers involved.

We did optimize this part by vectorizing the bucket calls,
however its not enough, beyond 100 nodes and this becomes
fairly visible in terms of performance.
This commit is contained in:
Harshavardhana
2024-01-30 12:43:25 -08:00
committed by GitHub
parent a669946357
commit 80ca120088
38 changed files with 408 additions and 291 deletions
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12
cmd/erasure-healing.go
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@@ -230,7 +230,7 @@ func (er *erasureObjects) healObject(ctx context.Context, bucket string, object
}
// Re-read when we have lock...
partsMetadata, errs := readAllFileInfo(ctx, storageDisks, bucket, object, versionID, true, true)
partsMetadata, errs := readAllFileInfo(ctx, storageDisks, "", bucket, object, versionID, true, true)
if isAllNotFound(errs) {
err := errFileNotFound
if versionID != "" {
@@ -518,7 +518,7 @@ func (er *erasureObjects) healObject(ctx context.Context, bucket string, object
inlineBuffers[i] = bytes.NewBuffer(make([]byte, 0, erasure.ShardFileSize(latestMeta.Size)+32))
writers[i] = newStreamingBitrotWriterBuffer(inlineBuffers[i], DefaultBitrotAlgorithm, erasure.ShardSize())
} else {
writers[i] = newBitrotWriter(disk, minioMetaTmpBucket, partPath,
writers[i] = newBitrotWriter(disk, bucket, minioMetaTmpBucket, partPath,
tillOffset, DefaultBitrotAlgorithm, erasure.ShardSize())
}
}
@@ -796,7 +796,7 @@ func statAllDirs(ctx context.Context, storageDisks []StorageAPI, bucket, prefix
}
index := index
g.Go(func() error {
entries, err := storageDisks[index].ListDir(ctx, bucket, prefix, 1)
entries, err := storageDisks[index].ListDir(ctx, "", bucket, prefix, 1)
if err != nil {
return err
}
@@ -810,6 +810,10 @@ func statAllDirs(ctx context.Context, storageDisks []StorageAPI, bucket, prefix
return g.Wait()
}
func isAllVolumeNotFound(errs []error) bool {
return countErrs(errs, errVolumeNotFound) == len(errs)
}
// isAllNotFound will return if any element of the error slice is not
// errFileNotFound, errFileVersionNotFound or errVolumeNotFound.
// A 0 length slice will always return false.
@@ -993,7 +997,7 @@ func (er erasureObjects) HealObject(ctx context.Context, bucket, object, version
// Perform quick read without lock.
// This allows to quickly check if all is ok or all are missing.
_, errs := readAllFileInfo(healCtx, storageDisks, bucket, object, versionID, false, false)
_, errs := readAllFileInfo(healCtx, storageDisks, "", bucket, object, versionID, false, false)
if isAllNotFound(errs) {
err := errFileNotFound
if versionID != "" {