XL/metadata: use new hashOrder algorithm for newXLMeta. (#2147)

.travis.yml

@@ -4,9 +4,9 @@ language: go
 
 os:
 - linux
-## Turning off for now.
-# - osx
-# osx_image: xcode7.2
+- osx
+
+osx_image: xcode7.2
 
 env:
 - ARCH=x86_64

xl-v1-metadata.go

@@ -107,9 +107,8 @@ type xlMetaV1 struct {
 	Parts []objectPartInfo `json:"parts,omitempty"`
 }
 
-// newXLMetaV1 - initializes new xlMetaV1, adds version, allocates a
-// fresh erasure info.
-func newXLMetaV1(dataBlocks, parityBlocks int) (xlMeta xlMetaV1) {
+// newXLMetaV1 - initializes new xlMetaV1, adds version, allocates a fresh erasure info.
+func newXLMetaV1(object string, dataBlocks, parityBlocks int) (xlMeta xlMetaV1) {
 	xlMeta = xlMetaV1{}
 	xlMeta.Version = "1.0.0"
 	xlMeta.Format = "xl"
@@ -119,7 +118,7 @@ func newXLMetaV1(dataBlocks, parityBlocks int) (xlMeta xlMetaV1) {
 		DataBlocks:   dataBlocks,
 		ParityBlocks: parityBlocks,
 		BlockSize:    blockSizeV1,
-		Distribution: hashOrder(time.Now().UTC().String(), dataBlocks+parityBlocks),
+		Distribution: hashOrder(object, dataBlocks+parityBlocks),
 	}
 	return xlMeta
 }

xl-v1-metadata_test.go

@@ -39,7 +39,7 @@ func TestXLMetaV1(t *testing.T) {
 	}
 
 	// Create a XLMetaV1 structure to test on.
-	meta := newXLMetaV1(8, 8)
+	meta := newXLMetaV1("minio", 8, 8)
 
 	// Add 5 parts.
 	for _, test := range testCases {

xl-v1-multipart.go

@@ -252,7 +252,7 @@ func (xl xlObjects) ListMultipartUploads(bucket, prefix, keyMarker, uploadIDMark
 // all the disks. `uploads.json` carries metadata regarding on going
 // multipart operation on the object.
 func (xl xlObjects) newMultipartUpload(bucket string, object string, meta map[string]string) (uploadID string, err error) {
-	xlMeta := newXLMetaV1(xl.dataBlocks, xl.parityBlocks)
+	xlMeta := newXLMetaV1(object, xl.dataBlocks, xl.parityBlocks)
 	// If not set default to "application/octet-stream"
 	if meta["content-type"] == "" {
 		contentType := "application/octet-stream"

xl-v1-object.go

@@ -368,7 +368,7 @@ func (xl xlObjects) PutObject(bucket string, object string, size int64, data io.
 	tempObj := uniqueID
 
 	// Initialize xl meta.
-	xlMeta := newXLMetaV1(xl.dataBlocks, xl.parityBlocks)
+	xlMeta := newXLMetaV1(object, xl.dataBlocks, xl.parityBlocks)
 
 	// Read metadata associated with the object from all disks.
 	partsMetadata, errs := xl.readAllXLMetadata(bucket, object)