minio/cmd/admin-rpc-server.go
Harshavardhana 556a51120c Deprecate ListLocks and ClearLocks (#6233)
No locks are ever left in memory, we also
have a periodic interval of clearing stale locks
anyways. The lock instrumentation was not complete
and was seldom used.

Deprecate this for now and bring it back later if
it is really needed. This also in-turn seems to improve
performance slightly.
2018-08-02 23:09:42 +05:30

113 lines
3.6 KiB
Go

/*
* Minio Cloud Storage, (C) 2016, 2017, 2018 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 cmd
import (
"context"
"path"
"github.com/gorilla/mux"
"github.com/minio/minio/cmd/logger"
xrpc "github.com/minio/minio/cmd/rpc"
)
const adminServiceName = "Admin"
const adminServiceSubPath = "/admin"
var adminServicePath = path.Join(minioReservedBucketPath, adminServiceSubPath)
// adminRPCReceiver - Admin RPC receiver for admin RPC server.
type adminRPCReceiver struct {
local *localAdminClient
}
// SignalServiceArgs - provides the signal argument to SignalService RPC
type SignalServiceArgs struct {
AuthArgs
Sig serviceSignal
}
// SignalService - Send a restart or stop signal to the service
func (receiver *adminRPCReceiver) SignalService(args *SignalServiceArgs, reply *VoidReply) error {
return receiver.local.SignalService(args.Sig)
}
// ServerInfo - returns the server info when object layer was initialized on this server.
func (receiver *adminRPCReceiver) ServerInfo(args *AuthArgs, reply *ServerInfoData) (err error) {
*reply, err = receiver.local.ServerInfo()
return err
}
// GetConfig - returns the config.json of this server.
func (receiver *adminRPCReceiver) GetConfig(args *AuthArgs, reply *[]byte) (err error) {
*reply, err = receiver.local.GetConfig()
return err
}
// ReInitFormatArgs - provides dry-run information to re-initialize format.json
type ReInitFormatArgs struct {
AuthArgs
DryRun bool
}
// ReInitFormat - re-init 'format.json'
func (receiver *adminRPCReceiver) ReInitFormat(args *ReInitFormatArgs, reply *VoidReply) error {
return receiver.local.ReInitFormat(args.DryRun)
}
// WriteConfigArgs - wraps the bytes to be written and temporary file name.
type WriteConfigArgs struct {
AuthArgs
TmpFileName string
Buf []byte
}
// WriteTmpConfig - writes the supplied config contents onto the
// supplied temporary file.
func (receiver *adminRPCReceiver) WriteTmpConfig(args *WriteConfigArgs, reply *VoidReply) error {
return receiver.local.WriteTmpConfig(args.TmpFileName, args.Buf)
}
// CommitConfigArgs - wraps the config file name that needs to be
// committed into config.json on this node.
type CommitConfigArgs struct {
AuthArgs
FileName string
}
// CommitConfig - Renames the temporary file into config.json on this node.
func (receiver *adminRPCReceiver) CommitConfig(args *CommitConfigArgs, reply *VoidReply) error {
return receiver.local.CommitConfig(args.FileName)
}
// NewAdminRPCServer - returns new admin RPC server.
func NewAdminRPCServer() (*xrpc.Server, error) {
rpcServer := xrpc.NewServer()
if err := rpcServer.RegisterName(adminServiceName, &adminRPCReceiver{&localAdminClient{}}); err != nil {
return nil, err
}
return rpcServer, nil
}
// registerAdminRPCRouter - creates and registers Admin RPC server and its router.
func registerAdminRPCRouter(router *mux.Router) {
rpcServer, err := NewAdminRPCServer()
logger.FatalIf(err, "Unable to initialize Lock RPC Server", context.Background())
subrouter := router.PathPrefix(minioReservedBucketPath).Subrouter()
subrouter.Path(adminServiceSubPath).Handler(rpcServer)
}