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XL/fs: initObjectLayer should cleanup tmpMetaPrefix in parallel. (#1752)

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Fixes #1747
This commit is contained in:
Harshavardhana
2016-05-25 01:33:39 -07:00
committed by Harshavardhana
parent ee6645f421
commit a9e778f460
4 changed files with 116 additions and 69 deletions
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xl-v1-object.go
+23 -26
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@@ -25,13 +25,19 @@ func (xl xlObjects) GetObject(bucket, object string, startOffset int64) (io.Read
if !IsValidObjectName(object) {
return nil, ObjectNameInvalid{Bucket: bucket, Object: object}
}
// Lock the object before reading.
nsMutex.RLock(bucket, object)
defer nsMutex.RUnlock(bucket, object)
fileReader, fileWriter := io.Pipe()
xlMeta, err := readXLMetadata(xl.getRandomDisk(), bucket, object)
// Read metadata associated with the object.
xlMeta, err := xl.readXLMetadata(bucket, object)
if err != nil {
return nil, toObjectErr(err, bucket, object)
}
// Get part index offset.
partIndex, offset, err := xlMeta.getPartIndexOffset(startOffset)
if err != nil {
return nil, toObjectErr(err, bucket, object)
@@ -90,33 +96,24 @@ func (xl xlObjects) GetObjectInfo(bucket, object string) (ObjectInfo, error) {
return info, nil
}
// getObjectInfo - get object info.
func (xl xlObjects) getObjectInfo(bucket, object string) (objInfo ObjectInfo, err error) {
// Count for errors encountered.
var xlJSONErrCount = 0
// Return the first success entry based on the selected random disk.
for xlJSONErrCount < len(xl.storageDisks) {
// Choose a random disk on each attempt, do not hit the same disk all the time.
disk := xl.getRandomDisk() // Pick a random disk.
var xlMeta xlMetaV1
xlMeta, err = readXLMetadata(disk, bucket, object)
if err == nil {
objInfo = ObjectInfo{}
objInfo.IsDir = false
objInfo.Bucket = bucket
objInfo.Name = object
objInfo.Size = xlMeta.Stat.Size
objInfo.ModTime = xlMeta.Stat.ModTime
objInfo.MD5Sum = xlMeta.Meta["md5Sum"]
objInfo.ContentType = xlMeta.Meta["content-type"]
objInfo.ContentEncoding = xlMeta.Meta["content-encoding"]
return objInfo, nil
}
xlJSONErrCount++ // Update error count.
var xlMeta xlMetaV1
xlMeta, err = xl.readXLMetadata(bucket, object)
if err != nil {
// Return error.
return ObjectInfo{}, err
}
// Return error at the end.
return ObjectInfo{}, err
objInfo = ObjectInfo{}
objInfo.IsDir = false
objInfo.Bucket = bucket
objInfo.Name = object
objInfo.Size = xlMeta.Stat.Size
objInfo.ModTime = xlMeta.Stat.ModTime
objInfo.MD5Sum = xlMeta.Meta["md5Sum"]
objInfo.ContentType = xlMeta.Meta["content-type"]
objInfo.ContentEncoding = xlMeta.Meta["content-encoding"]
return objInfo, nil
}
// renameObject - renaming all source objects to destination object across all disks.