Krishnan Parthasarathi e55926e8cf distribute: Make server work with multiple remote disks
This change initializes rpc servers associated with disks that are
local. It makes object layer initialization on demand, namely on the
first request to the object layer.

Also adds lock RPC service vendorized minio/dsync
2016-09-13 21:18:30 -07:00

57 lines
1.5 KiB
Go

/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dsync
import (
"errors"
"net/rpc"
)
const RpcPath = "/dsync"
const DebugPath = "/debug"
const DefaultPath = "/rpc/dsync"
var n int
var nodes []string
var rpcPath string
func closeClients(clients []*rpc.Client) {
for _, clnt := range clients {
clnt.Close()
}
}
// Same as SetNodes, but takes a path argument different from the package-level default.
func SetNodesWithPath(nodeList []string, path string) (err error) {
// Validate if number of nodes is within allowable range.
if n != 0 {
return errors.New("Cannot reinitialize dsync package")
} else if len(nodeList) < 4 {
return errors.New("Dsync not designed for less than 4 nodes")
} else if len(nodeList) > 16 {
return errors.New("Dsync not designed for more than 16 nodes")
}
nodes = make([]string, len(nodeList))
copy(nodes, nodeList[:])
rpcPath = path
n = len(nodes)
return nil
}