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XL: Implement strided erasure distribution. (#1772)

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Strided erasure distribution uses a new randomized
block distribution for each Put operation. This
information is captured inside `xl.json` for subsequent
Get operations.
This commit is contained in:
Harshavardhana
2016-05-26 19:55:48 -07:00
committed by Harshavardhana
parent 6dc8323684
commit d65101a8c8
7 changed files with 36 additions and 18 deletions
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tree-walk-xl.go
+1 -1
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@@ -82,7 +82,7 @@ func (xl xlObjects) listDir(bucket, prefixDir string, filter func(entry string)
// getRandomDisk - gives a random disk at any point in time from the
// available pool of disks.
func (xl xlObjects) getRandomDisk() (disk StorageAPI) {
rand.Seed(time.Now().UTC().UnixNano())
rand.Seed(time.Now().UTC().UnixNano()) // Seed with current time.
randIndex := rand.Intn(len(xl.storageDisks) - 1)
disk = xl.storageDisks[randIndex] // Pick a random disk.
return disk