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backend/fs: Refactor multipart upload

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This patch modifies multipart upload related functions as below

* New multipart upload call creates file
  EXPORT_DIR/.minio/BUCKET/PATH/TO/OBJECT/UPLOAD_ID.uploadid

* Put object part call creates file
  EXPORT_DIR/.minio/BUCKET/PATH/TO/OBJECT/UPLOAD_ID.PART_NUMBER.MD5SUM_STRING

* Abort multipart call removes all files matching
  EXPORT_DIR/.minio/BUCKET/PATH/TO/OBJECT/UPLOAD_ID.*

* Complete multipart call does
  1. creates a staging file
  EXPORT_DIR/.minio/BUCKET/PATH/TO/OBJECT/UPLOAD_ID.complete.TEMP_NAME
  then renames to
  EXPORT_DIR/.minio/BUCKET/PATH/TO/OBJECT/UPLOAD_ID.complete
  2. rename staging file
  EXPORT_DIR/.minio/BUCKET/PATH/TO/OBJECT/UPLOAD_ID.complete
  to EXPORT_DIR/BUCKET/PATH/TO/OBJECT
This commit is contained in:
Bala.FA
2016-03-28 22:22:09 +05:30
parent c69fdf0cf2
commit 083e4e9479
7 changed files with 1304 additions and 536 deletions
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fs-bucket-listobjects.go
+9 -4
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@@ -31,12 +31,17 @@ const (
)
// isDirExist - returns whether given directory is exist or not.
func isDirExist(dirname string) (status bool, err error) {
func isDirExist(dirname string) (bool, error) {
fi, err := os.Lstat(dirname)
if err == nil {
status = fi.IsDir()
if err != nil {
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
return
return fi.IsDir(), nil
}
func (fs *Filesystem) saveTreeWalk(params listObjectParams, walker *treeWalker) {