mirror of https://github.com/ouqiang/gocron
增加gRPC连接池
ouqiang
parent
bbed4f4c20
commit
5a8c3391f5
11
README.md
11
README.md
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@ -10,9 +10,11 @@
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* 任务执行失败重试设置
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* 任务超时设置
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* 延时任务
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* 任务执行方式
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* RPC调用执行远程shell命令
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* HTTP-GET请求
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* 任务类型
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* shell任务
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> 在远程服务器上执行shell命令, 调度器与任务执行器保持长连接
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* HTTP任务
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> 访问指定的URL地址
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* 查看任务执行日志
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* 任务执行结果通知, 支持邮件、Slack
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@ -32,7 +34,7 @@
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* [Linux-64位](http://opns468ov.bkt.clouddn.com/gocron/gocron-linux-amd64.tar.gz)
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* [Mac OS-64位](http://opns468ov.bkt.clouddn.com/gocron/gocron-darwin-amd64.tar.gz)
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* [Windows-64位](http://opns468ov.bkt.clouddn.com/gocron/gocron-windows-amd64.zip)
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* 任务执行器(安装在远程主机上)
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* 任务执行器(安装在远程主机上, 执行shell命令需安装)
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* [Linux-64位](http://opns468ov.bkt.clouddn.com/gocron/gocron-node-linux-amd64.tar.gz)
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* [Mac OS-64位](http://opns468ov.bkt.clouddn.com/gocron/gocron-node-darwin-amd64.tar.gz)
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* [Windows-64位](http://opns468ov.bkt.clouddn.com/gocron/gocron-node-windows-amd64.zip)
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@ -76,6 +78,7 @@
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* ORM [Xorm](https://github.com/go-xorm/xorm)
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* UI框架 [Semantic UI](https://semantic-ui.com/)
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* 依赖管理(所有依赖包放入vendor目录) [Govendor](https://github.com/kardianos/govendor)
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* RPC框架 [gRPC](https://github.com/grpc/grpc)
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## 反馈
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提交[issue](https://github.com/ouqiang/gocron/issues/new)
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@ -36,7 +36,7 @@ func (host *Host) Update(id int, data CommonMap) (int64, error) {
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// 删除
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func (host *Host) Delete(id int) (int64, error) {
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return Db.Id(id).Delete(host)
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return Db.Id(id).Delete(new(Host))
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}
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func (host *Host) Find(id int) error {
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@ -7,7 +7,6 @@ import (
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"github.com/go-xorm/xorm"
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"gopkg.in/macaron.v1"
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"strings"
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"time"
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"github.com/ouqiang/gocron/modules/logger"
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"github.com/ouqiang/gocron/modules/app"
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)
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@ -82,8 +81,6 @@ func CreateDb() *xorm.Engine {
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engine.Logger().SetLevel(core.LOG_DEBUG)
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}
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go keepDbAlived(engine)
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return engine
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}
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@ -112,14 +109,6 @@ func getDbEngineDSN(engine string, config map[string]string) string {
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return dsn
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}
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// 定时ping, 防止因数据库超时设置连接被断开
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func keepDbAlived(engine *xorm.Engine) {
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t := time.Tick(180 * time.Second)
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for {
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<- t
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engine.Ping()
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}
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}
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// 获取数据库配置
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func getDbConfig() map[string]string {
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@ -1,21 +1,23 @@
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package client
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import (
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"google.golang.org/grpc"
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pb "github.com/ouqiang/gocron/modules/rpc/proto"
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"golang.org/x/net/context"
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"fmt"
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"time"
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"errors"
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"github.com/ouqiang/gocron/modules/rpc/grpcpool"
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)
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func Exec(ip string, port int, taskReq *pb.TaskRequest) (string, error) {
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addr := fmt.Sprintf("%s:%d", ip, port);
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conn, err := grpc.Dial(addr, grpc.WithInsecure())
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conn, err := grpcpool.Pool.Get(addr)
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if err != nil {
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return "", err
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}
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defer conn.Close()
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defer func() {
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grpcpool.Pool.Put(addr, conn)
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}()
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c := pb.NewTaskClient(conn)
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if taskReq.Timeout <= 0 || taskReq.Timeout > 86400 {
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taskReq.Timeout = 86400
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@ -0,0 +1,109 @@
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package grpcpool
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import (
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"github.com/silenceper/pool"
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"sync"
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"time"
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"google.golang.org/grpc"
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"errors"
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)
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var (
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Pool GRPCPool
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)
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var (
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ErrInvalidConn = errors.New("invalid connection")
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)
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func init() {
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Pool = GRPCPool{
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make(map[string]pool.Pool),
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sync.RWMutex{},
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}
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}
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type GRPCPool struct {
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// map key格式 ip:port
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conns map[string]pool.Pool
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sync.RWMutex
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}
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func (p *GRPCPool) Get(addr string) (*grpc.ClientConn, error) {
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p.RLock()
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p.RUnlock()
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pool, ok := p.conns[addr]
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if !ok {
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err := p.newCommonPool(addr)
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if err != nil {
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return nil, err
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}
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}
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pool = p.conns[addr]
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conn, err := pool.Get()
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if err != nil {
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return nil, err
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}
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return conn.(*grpc.ClientConn), nil
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}
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func (p *GRPCPool) Put(addr string, conn *grpc.ClientConn) error {
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p.RLock()
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defer p.RUnlock()
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pool, ok := p.conns[addr]
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if ok {
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return pool.Put(conn)
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}
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return ErrInvalidConn
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}
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// 释放连接池
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func (p *GRPCPool) Release(addr string) {
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p.Lock()
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defer p.Unlock()
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pool, ok := p.conns[addr]
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if !ok {
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return
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}
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pool.Release()
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delete(p.conns, addr)
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}
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// 初始化底层连接池
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func (p *GRPCPool) newCommonPool(addr string) (error) {
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p.Lock()
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defer p.Unlock()
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commonPool, ok := p.conns[addr]
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if ok {
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return nil
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}
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poolConfig := &pool.PoolConfig{
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InitialCap: 1,
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MaxCap: 30,
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Factory: func() (interface{}, error) {
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return grpc.Dial(addr, grpc.WithInsecure())
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},
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Close: func(v interface{}) error {
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conn, ok := v.(*grpc.ClientConn)
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if ok && conn != nil {
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return conn.Close()
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}
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return ErrInvalidConn
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},
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IdleTimeout: 5 * time.Minute,
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}
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commonPool, err := pool.NewChannelPool(poolConfig)
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if err != nil {
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return err
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}
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p.conns[addr] = commonPool
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return nil
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}
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@ -12,6 +12,8 @@ import (
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"html/template"
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"github.com/ouqiang/gocron/routers/base"
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"github.com/go-macaron/binding"
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"github.com/ouqiang/gocron/modules/rpc/grpcpool"
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"strings"
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)
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func Index(ctx *macaron.Context) {
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@ -85,11 +87,17 @@ func Store(ctx *macaron.Context, form HostForm) string {
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return json.CommonFailure("主机名已存在")
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}
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hostModel.Name = form.Name
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hostModel.Alias = form.Alias
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hostModel.Name = strings.TrimSpace(form.Name)
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hostModel.Alias = strings.TrimSpace(form.Alias)
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hostModel.Port = form.Port
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hostModel.Remark = form.Remark
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hostModel.Remark = strings.TrimSpace(form.Remark)
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isCreate := false
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oldHostModel := new(models.Host)
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err = oldHostModel.Find(int(id))
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if err != nil {
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return json.CommonFailure("主机不存在")
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}
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if id > 0 {
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_, err = hostModel.UpdateBean(id)
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} else {
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return json.CommonFailure("保存失败", err)
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}
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taskModel := new(models.TaskHost)
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tasks, err := taskModel.ActiveListByHostId(id)
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if err != nil {
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return json.CommonFailure("刷新任务主机信息失败", err)
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}
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if !isCreate && len(tasks) > 0 {
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if !isCreate {
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oldAddr := fmt.Sprintf("%s:%d", oldHostModel.Name, oldHostModel.Port)
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newAddr := fmt.Sprintf("%s:%d", hostModel.Name, hostModel.Port)
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if oldAddr != newAddr {
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grpcpool.Pool.Release(oldAddr)
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}
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taskModel := new(models.TaskHost)
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tasks, err := taskModel.ActiveListByHostId(id)
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if err != nil {
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return json.CommonFailure("刷新任务主机信息失败", err)
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}
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serviceTask := new(service.Task)
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serviceTask.BatchAdd(tasks)
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}
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@ -129,11 +143,20 @@ func Remove(ctx *macaron.Context) string {
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}
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hostModel := new(models.Host)
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err = hostModel.Find(int(id))
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if err != nil {
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return json.CommonFailure("主机不存在")
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}
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_, err =hostModel.Delete(id)
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if err != nil {
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return json.CommonFailure("操作失败", err)
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}
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addr := fmt.Sprintf("%s:%d", hostModel.Name, hostModel.Port)
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grpcpool.Pool.Release(addr)
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return json.Success("操作成功", nil)
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}
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@ -33,7 +33,7 @@
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<div class="field">
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<select name="protocol" id="protocol">
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<option value="0">执行方式</option>
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<option value="2" {{{if eq .Params.Protocol 2}}}selected{{{end}}} data-match="host_id" data-validate-type="selectProtocol">RPC</option>
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<option value="2" {{{if eq .Params.Protocol 2}}}selected{{{end}}} data-match="host_id" data-validate-type="selectProtocol">SHELL</option>
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<option value="1" {{{if eq .Params.Protocol 1}}}selected{{{end}}}>HTTP</option>
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</select>
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</div>
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@ -70,7 +70,7 @@
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<td>{{{.Id}}}</td>
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<td>{{{.Task.Name}}}</td>
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<td>{{{.Spec}}}</td>
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<td>{{{if eq .Protocol 1}}} HTTP {{{else if eq .Protocol 2}}} RPC {{{end}}}</td>
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<td>{{{if eq .Protocol 1}}} HTTP {{{else if eq .Protocol 2}}} SHELL {{{end}}}</td>
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<td>{{{if eq .Timeout -1}}}后台运行{{{else if gt .Timeout 0}}}{{{.Timeout}}}秒{{{else}}}不限制{{{end}}}</td>
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<td>{{{.RetryTimes}}}</td>
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<td>{{{if gt .Multi 0}}}否{{{else}}}是{{{end}}}</td>
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@ -30,7 +30,7 @@
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<div class="field">
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<select name="protocol" id="protocol">
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<option value="0">执行方式</option>
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<option value="2" {{{if eq .Params.Protocol 2}}}selected{{{end}}} data-match="host_id" data-validate-type="selectProtocol">RPC</option>
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<option value="2" {{{if eq .Params.Protocol 2}}}selected{{{end}}} data-match="host_id" data-validate-type="selectProtocol">SHELL</option>
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<option value="1" {{{if eq .Params.Protocol 1}}}selected{{{end}}}>HTTP</option>
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</select>
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</div>
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@ -68,7 +68,7 @@
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<td><a href="/task?id={{{.TaskId}}}">{{{.TaskId}}}</a></td>
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<td>{{{.Name}}}</td>
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<td>{{{.Spec}}}</td>
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<td>{{{if eq .Protocol 1}}} HTTP {{{else if eq .Protocol 2}}} RPC {{{end}}}</td>
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<td>{{{if eq .Protocol 1}}} HTTP {{{else if eq .Protocol 2}}} SHELL {{{end}}}</td>
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<td>{{{.RetryTimes}}}</td>
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<td>{{{.Hostname}}}</td>
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<td>
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@ -39,7 +39,7 @@
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<div class="field">
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<label>执行方式</label>
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<select name="protocol" id="protocol">
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<option value="2" {{{if .Task}}} {{{if eq .Task.Protocol 2}}}selected{{{end}}} {{{end}}} data-match="host_id" data-validate-type="selectProtocol">RPC</option>
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<option value="2" {{{if .Task}}} {{{if eq .Task.Protocol 2}}}selected{{{end}}} {{{end}}} data-match="host_id" data-validate-type="selectProtocol">SHELL</option>
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<option value="1" {{{if .Task}}} {{{if eq .Task.Protocol 1}}}selected{{{end}}} {{{end}}}>HTTP</option>
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</select>
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</div>
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@ -0,0 +1,21 @@
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MIT License
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Copyright (c) 2016 nestgo
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
|
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furnished to do so, subject to the following conditions:
|
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|
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
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SOFTWARE.
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@ -0,0 +1,62 @@
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# pool
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[](http://godoc.org/github.com/silenceper/pool)
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Golang 实现的连接池
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##功能：
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- 连接池中连接类型为`interface{}`，使得更加通用
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- 链接的最大空闲时间，超时的链接将关闭丢弃，可避免空闲时链接自动失效问题
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- 使用channel处理池中的链接，高效
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## 基本用法
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```go
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//factory 创建连接的方法
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factory := func() (interface{}, error) { return net.Dial("tcp", "127.0.0.1:4000") }
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//close 关闭链接的方法
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close := func(v interface{}) error { return v.(net.Conn).Close() }
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//创建一个连接池： 初始化5，最大链接30
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poolConfig := &pool.PoolConfig{
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InitialCap: 5,
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MaxCap: 30,
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Factory: factory,
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Close: close,
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//链接最大空闲时间，超过该时间的链接 将会关闭，可避免空闲时链接EOF，自动失效的问题
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IdleTimeout: 15 * time.Second,
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}
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p, err := pool.NewChannelPool(poolConfig)
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if err != nil {
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fmt.Println("err=", err)
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}
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//从连接池中取得一个链接
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v, err := p.Get()
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//do something
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//conn=v.(net.Conn)
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//将链接放回连接池中
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p.Put(v)
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//释放连接池中的所有链接
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p.Release()
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//查看当前链接中的数量
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current := p.Len()
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```
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####注:
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该连接池参考 [https://github.com/fatih/pool](https://github.com/fatih/pool) 实现，改变以及增加原有的一些功能。
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## License
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The MIT License (MIT) - see LICENSE for more details
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@ -0,0 +1,156 @@
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package pool
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import (
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"errors"
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"fmt"
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"sync"
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"time"
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)
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//PoolConfig 连接池相关配置
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type PoolConfig struct {
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//连接池中拥有的最小连接数
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InitialCap int
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//连接池中拥有的最大的连接数
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MaxCap int
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//生成连接的方法
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Factory func() (interface{}, error)
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//关闭链接的方法
|
||||
Close func(interface{}) error
|
||||
//链接最大空闲时间，超过该事件则将失效
|
||||
IdleTimeout time.Duration
|
||||
}
|
||||
|
||||
//channelPool 存放链接信息
|
||||
type channelPool struct {
|
||||
mu sync.Mutex
|
||||
conns chan *idleConn
|
||||
factory func() (interface{}, error)
|
||||
close func(interface{}) error
|
||||
idleTimeout time.Duration
|
||||
}
|
||||
|
||||
type idleConn struct {
|
||||
conn interface{}
|
||||
t time.Time
|
||||
}
|
||||
|
||||
//NewChannelPool 初始化链接
|
||||
func NewChannelPool(poolConfig *PoolConfig) (Pool, error) {
|
||||
if poolConfig.InitialCap < 0 || poolConfig.MaxCap <= 0 || poolConfig.InitialCap > poolConfig.MaxCap {
|
||||
return nil, errors.New("invalid capacity settings")
|
||||
}
|
||||
|
||||
c := &channelPool{
|
||||
conns: make(chan *idleConn, poolConfig.MaxCap),
|
||||
factory: poolConfig.Factory,
|
||||
close: poolConfig.Close,
|
||||
idleTimeout: poolConfig.IdleTimeout,
|
||||
}
|
||||
|
||||
for i := 0; i < poolConfig.InitialCap; i++ {
|
||||
conn, err := c.factory()
|
||||
if err != nil {
|
||||
c.Release()
|
||||
return nil, fmt.Errorf("factory is not able to fill the pool: %s", err)
|
||||
}
|
||||
c.conns <- &idleConn{conn: conn, t: time.Now()}
|
||||
}
|
||||
|
||||
return c, nil
|
||||
}
|
||||
|
||||
//getConns 获取所有连接
|
||||
func (c *channelPool) getConns() chan *idleConn {
|
||||
c.mu.Lock()
|
||||
conns := c.conns
|
||||
c.mu.Unlock()
|
||||
return conns
|
||||
}
|
||||
|
||||
//Get 从pool中取一个连接
|
||||
func (c *channelPool) Get() (interface{}, error) {
|
||||
conns := c.getConns()
|
||||
if conns == nil {
|
||||
return nil, ErrClosed
|
||||
}
|
||||
for {
|
||||
select {
|
||||
case wrapConn := <-conns:
|
||||
if wrapConn == nil {
|
||||
return nil, ErrClosed
|
||||
}
|
||||
//判断是否超时，超时则丢弃
|
||||
if timeout := c.idleTimeout; timeout > 0 {
|
||||
if wrapConn.t.Add(timeout).Before(time.Now()) {
|
||||
//丢弃并关闭该链接
|
||||
c.Close(wrapConn.conn)
|
||||
continue
|
||||
}
|
||||
}
|
||||
return wrapConn.conn, nil
|
||||
default:
|
||||
conn, err := c.factory()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return conn, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//Put 将连接放回pool中
|
||||
func (c *channelPool) Put(conn interface{}) error {
|
||||
if conn == nil {
|
||||
return errors.New("connection is nil. rejecting")
|
||||
}
|
||||
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
if c.conns == nil {
|
||||
return c.Close(conn)
|
||||
}
|
||||
|
||||
select {
|
||||
case c.conns <- &idleConn{conn: conn, t: time.Now()}:
|
||||
return nil
|
||||
default:
|
||||
//连接池已满，直接关闭该链接
|
||||
return c.Close(conn)
|
||||
}
|
||||
}
|
||||
|
||||
//Close 关闭单条连接
|
||||
func (c *channelPool) Close(conn interface{}) error {
|
||||
if conn == nil {
|
||||
return errors.New("connection is nil. rejecting")
|
||||
}
|
||||
return c.close(conn)
|
||||
}
|
||||
|
||||
//Release 释放连接池中所有链接
|
||||
func (c *channelPool) Release() {
|
||||
c.mu.Lock()
|
||||
conns := c.conns
|
||||
c.conns = nil
|
||||
c.factory = nil
|
||||
closeFun := c.close
|
||||
c.close = nil
|
||||
c.mu.Unlock()
|
||||
|
||||
if conns == nil {
|
||||
return
|
||||
}
|
||||
|
||||
close(conns)
|
||||
for wrapConn := range conns {
|
||||
closeFun(wrapConn.conn)
|
||||
}
|
||||
}
|
||||
|
||||
//Len 连接池中已有的连接
|
||||
func (c *channelPool) Len() int {
|
||||
return len(c.getConns())
|
||||
}
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
package pool
|
||||
|
||||
import "errors"
|
||||
|
||||
var (
|
||||
//ErrClosed 连接池已经关闭Error
|
||||
ErrClosed = errors.New("pool is closed")
|
||||
)
|
||||
|
||||
//Pool 基本方法
|
||||
type Pool interface {
|
||||
Get() (interface{}, error)
|
||||
|
||||
Put(interface{}) error
|
||||
|
||||
Close(interface{}) error
|
||||
|
||||
Release()
|
||||
|
||||
Len() int
|
||||
}
|
||||
|
|
@ -148,6 +148,12 @@
|
|||
"revision": "c28ec761087c32fd75ad7514db2a4988d5c872d9",
|
||||
"revisionTime": "2017-05-14T12:16:09Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "cVGA2CJTJsCAVa5VKTM8k/ma/BU=",
|
||||
"path": "github.com/silenceper/pool",
|
||||
"revision": "e4c4536403d9765c8ea74cda2ee49dcb0848bc7a",
|
||||
"revisionTime": "2016-11-14T14:21:55Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "1keN4Q9F8uHk/Gt5YXG0oCEecKM=",
|
||||
"path": "github.com/urfave/cli",
|
||||
|
|
|
|||
Loading…
Reference in New Issue