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Add x-amz-storage-class support (#5295)

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This adds configurable data and parity options on a per object
basis. To use variable parity

- Users can set environment variables to cofigure variable
parity

- Then add header x-amz-storage-class to putobject requests
with relevant storage class values

Fixes #4997
This commit is contained in:
Nitish Tiwari
2017-12-22 16:58:13 +05:30
committed by GitHub
parent f1355da72e
commit 1a3dbbc9dd
25 changed files with 1237 additions and 129 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
cmd/server-startup-msg.go
View File

@@ -47,6 +47,16 @@ func printStartupMessage(apiEndPoints []string) {
strippedAPIEndpoints := stripStandardPorts(apiEndPoints)
// Object layer is initialized then print StorageInfo.
objAPI := newObjectLayerFn()
if objAPI != nil {
printStorageInfo(objAPI.StorageInfo())
// Storage class info only printed for Erasure backend
if objAPI.StorageInfo().Backend.Type == Erasure {
printStorageClassInfoMsg(objAPI.StorageInfo())
}
}
// Prints credential, region and browser access.
printServerCommonMsg(strippedAPIEndpoints)
@@ -57,12 +67,6 @@ func printStartupMessage(apiEndPoints []string) {
// Prints documentation message.
printObjectAPIMsg()
// Object layer is initialized then print StorageInfo.
objAPI := newObjectLayerFn()
if objAPI != nil {
printStorageInfo(objAPI.StorageInfo())
}
// SSL is configured reads certification chain, prints
// authority and expiry.
if globalIsSSL {
@@ -173,18 +177,42 @@ func getStorageInfoMsg(storageInfo StorageInfo) string {
humanize.IBytes(uint64(storageInfo.Total)))
if storageInfo.Backend.Type == Erasure {
diskInfo := fmt.Sprintf(" %d Online, %d Offline. ", storageInfo.Backend.OnlineDisks, storageInfo.Backend.OfflineDisks)
if maxDiskFailures := storageInfo.Backend.ReadQuorum - storageInfo.Backend.OfflineDisks; maxDiskFailures >= 0 {
diskInfo += fmt.Sprintf("We can withstand [%d] drive failure(s).", maxDiskFailures)
}
msg += colorBlue("\nStatus:") + fmt.Sprintf(getFormatStr(len(diskInfo), 8), diskInfo)
}
return msg
}
func printStorageClassInfoMsg(storageInfo StorageInfo) {
standardClassMsg := getStandardStorageClassInfoMsg(storageInfo)
rrsClassMsg := getRRSStorageClassInfoMsg(storageInfo)
storageClassMsg := fmt.Sprintf(getFormatStr(len(standardClassMsg), 3), standardClassMsg) + fmt.Sprintf(getFormatStr(len(rrsClassMsg), 3), rrsClassMsg)
// Print storage class section only if data is present
if storageClassMsg != "" {
log.Println(colorBlue("Storage Class:"))
log.Println(storageClassMsg)
}
}
func getStandardStorageClassInfoMsg(storageInfo StorageInfo) string {
var msg string
if maxDiskFailures := storageInfo.Backend.standardSCParity - storageInfo.Backend.OfflineDisks; maxDiskFailures >= 0 {
msg += fmt.Sprintf("Objects with Standard class can withstand [%d] drive failure(s).\n", maxDiskFailures)
}
return msg
}
func getRRSStorageClassInfoMsg(storageInfo StorageInfo) string {
var msg string
if maxDiskFailures := storageInfo.Backend.rrSCParity - storageInfo.Backend.OfflineDisks; maxDiskFailures >= 0 {
msg += fmt.Sprintf("Objects with Reduced Redundancy class can withstand [%d] drive failure(s).\n", maxDiskFailures)
}
return msg
}
// Prints startup message of storage capacity and erasure information.
func printStorageInfo(storageInfo StorageInfo) {
log.Println()
log.Println(getStorageInfoMsg(storageInfo))
log.Println()
}
// Prints certificate expiry date warning