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scheduler.go
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scheduler.go
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/*
* Copyright 2020 The Dragonfly Authors
*
* 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 scheduler
import (
"context"
"d7y.io/dragonfly/v2/cmd/dependency"
logger "d7y.io/dragonfly/v2/internal/dflog"
"d7y.io/dragonfly/v2/internal/dynconfig"
"d7y.io/dragonfly/v2/pkg/rpc"
"d7y.io/dragonfly/v2/pkg/rpc/manager"
managerclient "d7y.io/dragonfly/v2/pkg/rpc/manager/client"
"d7y.io/dragonfly/v2/pkg/rpc/scheduler/server"
"d7y.io/dragonfly/v2/pkg/util/net/iputils"
"d7y.io/dragonfly/v2/scheduler/config"
"d7y.io/dragonfly/v2/scheduler/core"
"d7y.io/dragonfly/v2/scheduler/job"
"d7y.io/dragonfly/v2/scheduler/rpcserver"
"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
"google.golang.org/grpc"
)
type Server struct {
config *config.Config
schedulerServer server.SchedulerServer
schedulerService *core.SchedulerService
managerClient managerclient.Client
dynConfig config.DynconfigInterface
job job.Job
}
func New(cfg *config.Config) (*Server, error) {
s := &Server{config: cfg}
// Initialize manager client
if cfg.Manager.Addr != "" {
managerClient, err := managerclient.New(cfg.Manager.Addr)
if err != nil {
return nil, err
}
s.managerClient = managerClient
// Register to manager
if _, err := s.managerClient.UpdateScheduler(&manager.UpdateSchedulerRequest{
SourceType: manager.SourceType_SCHEDULER_SOURCE,
HostName: s.config.Server.Host,
Ip: s.config.Server.IP,
Port: int32(s.config.Server.Port),
Idc: s.config.Host.IDC,
Location: s.config.Host.Location,
SchedulerClusterId: uint64(s.config.Manager.SchedulerClusterID),
}); err != nil {
return nil, err
}
}
// Initialize dynconfig client
options := []dynconfig.Option{dynconfig.WithLocalConfigPath(dependency.GetConfigPath("scheduler"))}
if s.managerClient != nil && cfg.DynConfig.Type == dynconfig.ManagerSourceType {
options = append(options,
dynconfig.WithManagerClient(config.NewManagerClient(s.managerClient, cfg.Manager.SchedulerClusterID)),
dynconfig.WithCachePath(config.DefaultDynconfigCachePath),
dynconfig.WithExpireTime(cfg.DynConfig.ExpireTime),
)
}
dynConfig, err := config.NewDynconfig(cfg.DynConfig.Type, cfg.DynConfig.CDNDirPath, options...)
if err != nil {
return nil, err
}
s.dynConfig = dynConfig
// Initialize scheduler service
var openTel bool
if cfg.Options.Telemetry.Jaeger != "" {
openTel = true
}
schedulerService, err := core.NewSchedulerService(cfg.Scheduler, dynConfig, core.WithDisableCDN(cfg.DisableCDN), core.WithOpenTel(openTel))
if err != nil {
return nil, err
}
s.schedulerService = schedulerService
// Initialize grpc service
schedulerServer, err := rpcserver.NewSchedulerServer(schedulerService)
if err != nil {
return nil, err
}
s.schedulerServer = schedulerServer
// Initialize job service
if cfg.Job.Redis.Host != "" {
s.job, err = job.New(context.Background(), cfg.Job, iputils.HostName, s.schedulerService)
if err != nil {
return nil, err
}
}
return s, nil
}
func (s *Server) Serve() error {
// Serve dynConfig
go func() {
if err := s.dynConfig.Serve(); err != nil {
logger.Fatalf("dynconfig start failed %v", err)
}
logger.Info("dynconfig start successfully")
}()
// Serve schedulerService
go func() {
s.schedulerService.Serve()
logger.Info("scheduler service start successfully")
}()
// Serve Job
if s.job != nil {
go func() {
if err := s.job.Serve(); err != nil {
logger.Fatalf("job start failed %v", err)
}
logger.Info("job start successfully")
}()
}
// Serve Keepalive
if s.managerClient != nil {
go func() {
logger.Info("start keepalive to manager")
s.managerClient.KeepAlive(s.config.Manager.KeepAlive.Interval, &manager.KeepAliveRequest{
HostName: s.config.Server.Host,
SourceType: manager.SourceType_SCHEDULER_SOURCE,
ClusterId: uint64(s.config.Manager.SchedulerClusterID),
})
}()
}
// Serve GRPC
logger.Infof("start server at port %d", s.config.Server.Port)
var opts []grpc.ServerOption
if s.config.Options.Telemetry.Jaeger != "" {
opts = append(opts, grpc.ChainUnaryInterceptor(otelgrpc.UnaryServerInterceptor()), grpc.ChainStreamInterceptor(otelgrpc.StreamServerInterceptor()))
}
if err := rpc.StartTCPServer(
s.config.Server.Port,
s.config.Server.Port,
s.schedulerServer,
opts...,
); err != nil {
logger.Errorf("grpc start failed %v", err)
return err
}
return nil
}
func (s *Server) Stop() {
s.dynConfig.Stop()
logger.Info("dynconfig client closed")
if s.managerClient != nil {
s.managerClient.Close()
logger.Info("manager client closed")
}
s.schedulerService.Stop()
logger.Info("scheduler service closed")
rpc.StopServer()
logger.Info("grpc server closed under request")
}