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Change lock name to include names instead of hash. (#6886)

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Previously lockname included the hash of the bucket, object
and uploadid.

This is a part of fix required to list oldest locks on the server.
This commit is contained in:
kannappanr 2018-12-19 13:57:51 -08:00 committed by Harshavardhana
parent 9bb88e610e
commit 8c32311b80
1 changed files with 16 additions and 5 deletions
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21
cmd/xl-v1-multipart.go
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@ -34,6 +34,14 @@ func (xl xlObjects) getUploadIDDir(bucket, object, uploadID string) string {
return pathJoin(xl.getMultipartSHADir(bucket, object), uploadID)
}
// getUploadIDLockPath returns the name of the Lock in the form of
// bucket/object/uploadID. For locking, the path bucket/object/uploadID
// is locked instead of multipart-sha256-Dir/uploadID as it is more
// readable in the list-locks output which helps in debugging.
func (xl xlObjects) getUploadIDLockPath(bucket, object, uploadID string) string {
return pathJoin(bucket, object, uploadID)
}
func (xl xlObjects) getMultipartSHADir(bucket, object string) string {
return getSHA256Hash([]byte(pathJoin(bucket, object)))
}
@ -290,9 +298,10 @@ func (xl xlObjects) PutObjectPart(ctx context.Context, bucket, object, uploadID
var partsMetadata []xlMetaV1
var errs []error
uploadIDPath := xl.getUploadIDDir(bucket, object, uploadID)
uploadIDLockPath := xl.getUploadIDLockPath(bucket, object, uploadID)
// pre-check upload id lock.
preUploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
preUploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDLockPath)
if err := preUploadIDLock.GetRLock(globalOperationTimeout); err != nil {
return pi, err
}
@ -398,7 +407,7 @@ func (xl xlObjects) PutObjectPart(ctx context.Context, bucket, object, uploadID
}
// post-upload check (write) lock
postUploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
postUploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDLockPath)
if err = postUploadIDLock.GetLock(globalOperationTimeout); err != nil {
return pi, err
}
@ -491,7 +500,7 @@ func (xl xlObjects) ListObjectParts(ctx context.Context, bucket, object, uploadI
// Hold lock so that there is no competing
// abort-multipart-upload or complete-multipart-upload.
uploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket,
xl.getUploadIDDir(bucket, object, uploadID))
xl.getUploadIDLockPath(bucket, object, uploadID))
if err := uploadIDLock.GetLock(globalListingTimeout); err != nil {
return result, err
}
@ -579,6 +588,7 @@ func (xl xlObjects) CompleteMultipartUpload(ctx context.Context, bucket string,
defer destLock.Unlock()
uploadIDPath := xl.getUploadIDDir(bucket, object, uploadID)
uploadIDLockPath := xl.getUploadIDLockPath(bucket, object, uploadID)
// Hold lock so that
//
@ -586,7 +596,7 @@ func (xl xlObjects) CompleteMultipartUpload(ctx context.Context, bucket string,
//
// 2) no one does a parallel complete-multipart-upload on this
// multipart upload
uploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
uploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDLockPath)
if err := uploadIDLock.GetLock(globalOperationTimeout); err != nil {
return oi, err
}
@ -785,9 +795,10 @@ func (xl xlObjects) AbortMultipartUpload(ctx context.Context, bucket, object, up
}
// Construct uploadIDPath.
uploadIDPath := xl.getUploadIDDir(bucket, object, uploadID)
uploadIDLockPath := xl.getUploadIDLockPath(bucket, object, uploadID)
// Hold lock so that there is no competing
// complete-multipart-upload or put-object-part.
uploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDPath)
uploadIDLock := xl.nsMutex.NewNSLock(minioMetaMultipartBucket, uploadIDLockPath)
if err := uploadIDLock.GetLock(globalOperationTimeout); err != nil {
return err
}