distributed-XL: Support to run one minio process per export even on the same machine. (#2999)

fixes #2983

cmd/s3-peer-client.go

@@ -23,8 +23,6 @@ import (
 	"path"
 	"sync"
 	"time"
-
-	"github.com/minio/minio-go/pkg/set"
 )
 
 type s3Peers struct {
@@ -38,9 +36,9 @@ type s3Peers struct {
 	peers []string
 }
 
-func initGlobalS3Peers(disks []string) {
+func initGlobalS3Peers(eps []storageEndPoint) {
 	// Get list of de-duplicated peers.
-	peers := getAllPeers(disks)
+	peers := getAllPeers(eps)
 
 	// Initialize global state.
 	globalS3Peers = s3Peers{
@@ -112,23 +110,10 @@ func (s3p *s3Peers) Close() error {
 
 // returns the network addresses of all Minio servers in the cluster
 // in `host:port` format.
-func getAllPeers(disks []string) []string {
+func getAllPeers(eps []storageEndPoint) []string {
 	res := []string{}
-	// use set to de-duplicate
-	sset := set.NewStringSet()
-	for _, disk := range disks {
-		netAddr, _, err := splitNetPath(disk)
-		if err != nil || netAddr == "" {
-			errorIf(err, "Unexpected error - most likely a bug.")
-			continue
-		}
-		if !sset.Contains(netAddr) {
-			res = append(
-				res,
-				fmt.Sprintf("%s:%d", netAddr, globalMinioPort),
-			)
-			sset.Add(netAddr)
-		}
+	for _, ep := range eps {
+		res = append(res, fmt.Sprintf("%s:%d", ep.host, ep.port))
 	}
 	return res
 }