9531cddb06
Two handlers are added to admin API to enable profiling and disable
profiling of a server in a standalone mode, or all nodes in the
distributed mode.
/minio/admin/profiling/start/{cpu,block,mem}:
- Start profiling and return starting JSON results, e.g. one
node is offline.
/minio/admin/profiling/download:
- Stop the on-going profiling task
- Stream a zip file which contains all profiling files that can
be later inspected by go tool pprof
105 lines
3.4 KiB
Go
105 lines
3.4 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016, 2017, 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"path"
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"github.com/gorilla/mux"
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"github.com/minio/minio/cmd/logger"
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xrpc "github.com/minio/minio/cmd/rpc"
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)
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const adminServiceName = "Admin"
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const adminServiceSubPath = "/admin"
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var adminServicePath = path.Join(minioReservedBucketPath, adminServiceSubPath)
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// adminRPCReceiver - Admin RPC receiver for admin RPC server.
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type adminRPCReceiver struct {
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local *localAdminClient
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}
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// SignalServiceArgs - provides the signal argument to SignalService RPC
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type SignalServiceArgs struct {
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AuthArgs
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Sig serviceSignal
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}
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// SignalService - Send a restart or stop signal to the service
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func (receiver *adminRPCReceiver) SignalService(args *SignalServiceArgs, reply *VoidReply) error {
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return receiver.local.SignalService(args.Sig)
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}
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// ServerInfo - returns the server info when object layer was initialized on this server.
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func (receiver *adminRPCReceiver) ServerInfo(args *AuthArgs, reply *ServerInfoData) (err error) {
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*reply, err = receiver.local.ServerInfo()
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return err
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}
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// StartProfilingArgs - holds the RPC argument for StartingProfiling RPC call
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type StartProfilingArgs struct {
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AuthArgs
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Profiler string
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}
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// StartProfiling - starts profiling of this server
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func (receiver *adminRPCReceiver) StartProfiling(args *StartProfilingArgs, reply *VoidReply) error {
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return receiver.local.StartProfiling(args.Profiler)
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}
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// DownloadProfilingData - stops and returns profiling data of this server
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func (receiver *adminRPCReceiver) DownloadProfilingData(args *AuthArgs, reply *[]byte) (err error) {
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*reply, err = receiver.local.DownloadProfilingData()
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return
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}
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// GetConfig - returns the config.json of this server.
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func (receiver *adminRPCReceiver) GetConfig(args *AuthArgs, reply *[]byte) (err error) {
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*reply, err = receiver.local.GetConfig()
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return err
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}
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// ReInitFormatArgs - provides dry-run information to re-initialize format.json
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type ReInitFormatArgs struct {
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AuthArgs
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DryRun bool
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}
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// ReInitFormat - re-init 'format.json'
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func (receiver *adminRPCReceiver) ReInitFormat(args *ReInitFormatArgs, reply *VoidReply) error {
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return receiver.local.ReInitFormat(args.DryRun)
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}
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// NewAdminRPCServer - returns new admin RPC server.
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func NewAdminRPCServer() (*xrpc.Server, error) {
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rpcServer := xrpc.NewServer()
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if err := rpcServer.RegisterName(adminServiceName, &adminRPCReceiver{&localAdminClient{}}); err != nil {
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return nil, err
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}
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return rpcServer, nil
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}
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// registerAdminRPCRouter - creates and registers Admin RPC server and its router.
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func registerAdminRPCRouter(router *mux.Router) {
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rpcServer, err := NewAdminRPCServer()
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logger.FatalIf(err, "Unable to initialize Lock RPC Server", context.Background())
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subrouter := router.PathPrefix(minioReservedBucketPath).Subrouter()
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subrouter.Path(adminServiceSubPath).HandlerFunc(httpTraceHdrs(rpcServer.ServeHTTP))
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}
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