⚡️ pprof 性能调优 / 计划任务支持秒级

2025-01-22 12:48:14 -05:00 · 2021-09-29 19:58:02 +08:00 · 2021-09-29 19:58:02 +08:00 · 47dfa4777b
commit 47dfa4777b
parent 1f1e0b6db7
22 changed files with 149 additions and 105 deletions
--- a/.gitignore
+++ b/.gitignore
@ -10,8 +10,11 @@

 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
+*.pprof
 .idea
 /data
 /dist
 .DS_Store
 /main
+/cmd/agent/main
+/cmd/dashboard/main
--- a/README.md
+++ b/README.md
@ -4,7 +4,7 @@
  <br>
  <small><i>LOGO designed by <a href="https://xio.ng" target="_blank">熊大</a> .</i></small>
  <br><br>
-<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=Dash%20v0.10.1&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.7.0-brightgreen?style=for-the-badge&logo=linux">
+<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=Dash%20v0.10.2&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.7.0-brightgreen?style=for-the-badge&logo=linux">
  <br>
  <br>
  <p>:trollface: <b>哪吒监控</b> 一站式轻监控轻运维系统。支持系统状态、HTTP(SSL 证书变更、即将到期、到期)、TCP、Ping 监控报警，命令批量执行和计划任务。</p>
@ -14,9 +14,9 @@

 \>> [我们的用户](https://www.google.com/search?q="powered+by+哪吒监控"&filter=0) (Google)

-| 默认主题                                                | DayNight [@JackieSung](https://github.com/JackieSung4ev) | hotaru                                                                 |
-| ------------------------------------------------------- | -------------------------------------------------------- | ---------------------------------------------------------------------- |
-| ![首页截图1](https://s3.ax1x.com/2020/12/07/DvTCwD.jpg) | <img src="https://s3.ax1x.com/2021/01/20/sfJv2q.jpg"/>   | <img src="https://s3.ax1x.com/2020/12/09/rPF4xJ.png" width="1600px" /> |
+| 默认主题                                                    | DayNight [@JackieSung](https://github.com/JackieSung4ev)     | hotaru                                                                     |
+| ----------------------------------------------------------- | ------------------------------------------------------------ | -------------------------------------------------------------------------- |
+| ![默认主题](resource/template/theme-default/screenshot.png) | ![daynight](resource/template/theme-daynight/screenshot.png) | <img src="resource/template/theme-hotaru/screenshot.png" width="1600px" /> |

 ## 安装脚本

@ -36,11 +36,12 @@ CN=true sudo ./nezha.sh

 _\* 使用 WatchTower 可以自动更新面板，Windows 终端可以使用 nssm 配置自启动（见尾部教程）_

-### 特殊技能
+### 增强配置

 通过执行 `./nezha-agent --help` 查看支持的参数，如果你使用一键脚本，可以编辑 `/etc/systemd/system/nezha-agent.service`，在 `ExecStart=` 这一行的末尾加上

 - `--skip-conn` 不监控连接数，机场/连接密集型机器推荐设置，不然比较占 CPU([shirou/gopsutil/issues#220](https://github.com/shirou/gopsutil/issues/220))
+- `--skip-procs` 不监控进程数，也可以降低 agent 占用
 - `--disable-auto-update` 禁止 Agent 自动更新

 ## 功能说明
@ -230,7 +231,7 @@ URL 里面也可放置占位符，请求时会进行简单的字符串替换。
 </details>

 <details>
-    <summary>Agent 不断重启/无法启动 ？</summary>
+    <summary>Agent不上线不启动自检流程</summary>

 1. 直接执行 `/opt/nezha/agent/nezha-agent -s 面板IP或非CDN域名:面板RPC端口 -p Agent密钥 -d` 查看日志是否是 DNS 问题。
 2. `nc -v 域名/IP 面板RPC端口` 或者 `telnet 域名/IP 面板RPC端口` 检验是否是网络问题，检查本机与面板服务器出入站防火墙，如果单机无法判断可借助 <https://port.ping.pe/> 提供的端口检查工具进行检测。
@ -243,7 +244,7 @@ URL 里面也可放置占位符，请求时会进行简单的字符串替换。

 首先在 release 下载对应的二进制解压 tar.gz 包后放置到 `/root`，然后 `chmod +x /root/nezha-agent` 赋予执行权限，然后创建 `/etc/init.d/nezha-service`：

-```
+```shell
 #!/bin/sh /etc/rc.common

 START=99
@ -272,8 +273,9 @@ restart() {
 </details>

 <details>
-    <summary>实时通道断开/终端连接失败</summary>
-使用反向代理时需要针对 `/ws` 路径的 WebSocket 进行特别配置以支持实时更新服务器状态。
+    <summary>实时通道断开/网页终端连接失败</summary>
+
+使用反向代理时需要针对 `/ws`,`/terminal` 路径的 WebSocket 进行特别配置以支持实时更新服务器状态和 **WebSSH**。

 - Nginx(宝塔)：在你的 nginx 配置文件中加入以下代码

@ -285,7 +287,6 @@ restart() {

      location ~ ^/(ws|terminal/.+)$  {
          proxy_pass http://ip:站点访问端口;
-          proxy_http_version 1.1;
          proxy_set_header Upgrade $http_upgrade;
          proxy_set_header Connection "Upgrade";
          proxy_set_header Host $host;
@ -295,6 +296,15 @@ restart() {
  }
  ```

+  如果非宝塔，还要在 `server{}` 中添加上这一段
+
+  ```nginx
+  location / {
+    proxy_pass http://ip:站点访问端口;
+    proxy_set_header Host $host;
+  }
+  ```
+
 - CaddyServer v1（v2 无需特别配置）

  ```Caddyfile
--- a/cmd/agent/main.go
+++ b/cmd/agent/main.go
@ -30,25 +30,21 @@ import (

 type AgentConfig struct {
 	SkipConnectionCount bool
+	SkipProcsCount      bool
 	DisableAutoUpdate   bool
 	Debug               bool
 	Server              string
 	ClientSecret        string
 }

-func init() {
-	http.DefaultClient.Timeout = time.Second * 5
-	flag.CommandLine.ParseErrorsWhitelist.UnknownFlags = true
-}
-
 var (
-	version   string
-	agentConf AgentConfig
+	version string
+	client  pb.NezhaServiceClient
+	inited  bool
 )

 var (
-	client     pb.NezhaServiceClient
-	inited     bool
+	agentConf  AgentConfig
 	updateCh   = make(chan struct{}) // Agent 自动更新间隔
 	httpClient = &http.Client{
 		CheckRedirect: func(req *http.Request, via []*http.Request) error {
@ -63,6 +59,11 @@ const (
 	networkTimeOut = time.Second * 5  // 普通网络超时
 )

+func init() {
+	http.DefaultClient.Timeout = time.Second * 5
+	flag.CommandLine.ParseErrorsWhitelist.UnknownFlags = true
+}
+
 func main() {
 	// 来自于 GoReleaser 的版本号
 	monitor.Version = version
@ -71,6 +72,7 @@ func main() {
 	flag.StringVarP(&agentConf.Server, "server", "s", "localhost:5555", "管理面板RPC端口")
 	flag.StringVarP(&agentConf.ClientSecret, "password", "p", "", "Agent连接Secret")
 	flag.BoolVar(&agentConf.SkipConnectionCount, "skip-conn", false, "不监控连接数")
+	flag.BoolVar(&agentConf.SkipProcsCount, "skip-procs", false, "不监控进程数")
 	flag.BoolVar(&agentConf.DisableAutoUpdate, "disable-auto-update", false, "禁用自动升级")
 	flag.Parse()

@ -88,7 +90,6 @@ func run() {
 	}

 	go pty.DownloadDependency()
-
 	// 上报服务器信息
 	go reportState()
 	// 更新IP信息
@ -168,8 +169,8 @@ func receiveTasks(tasks pb.NezhaService_RequestTaskClient) error {
 		}
 		go func() {
 			defer func() {
-				if recover() != nil {
-					println("task panic", task)
+				if err := recover(); err != nil {
+					println("task panic", task, err)
 				}
 			}()
 			doTask(task)
@ -209,7 +210,7 @@ func reportState() {
 		if client != nil && inited {
 			monitor.TrackNetworkSpeed()
 			timeOutCtx, cancel := context.WithTimeout(context.Background(), networkTimeOut)
-			_, err = client.ReportSystemState(timeOutCtx, monitor.GetState(agentConf.SkipConnectionCount).PB())
+			_, err = client.ReportSystemState(timeOutCtx, monitor.GetState(agentConf.SkipConnectionCount, agentConf.SkipProcsCount).PB())
 			cancel()
 			if err != nil {
 				println("reportState error", err)
@ -229,7 +230,7 @@ func doSelfUpdate() {
 	println("检查更新：", v)
 	latest, err := selfupdate.UpdateSelf(v, "naiba/nezha")
 	if err != nil {
-		println("自动更新失败：", err)
+		println("更新失败：", err)
 		return
 	}
 	if !latest.Version.Equals(v) {
@ -282,7 +283,7 @@ func handleHttpGetTask(task *pb.Task, result *pb.TaskResult) {
 	}
 	if err == nil {
 		// 检查 SSL 证书信息
-		if len(resp.TLS.PeerCertificates) > 0 {
+		if resp.TLS != nil && len(resp.TLS.PeerCertificates) > 0 {
 			c := resp.TLS.PeerCertificates[0]
 			result.Data = c.Issuer.CommonName + "|" + c.NotAfter.In(time.Local).String()
 		}
--- a/cmd/agent/monitor/monitor.go
+++ b/cmd/agent/monitor/monitor.go
@ -5,7 +5,6 @@ import (
 	"regexp"
 	"runtime"
 	"strings"
-	"sync/atomic"
 	"syscall"
 	"time"

@ -15,20 +14,27 @@ import (
 	"github.com/shirou/gopsutil/v3/load"
 	"github.com/shirou/gopsutil/v3/mem"
 	"github.com/shirou/gopsutil/v3/net"
+	"github.com/shirou/gopsutil/v3/process"

 	"github.com/naiba/nezha/model"
 )

-var Version string = "debug"
-var netInSpeed, netOutSpeed, netInTransfer, netOutTransfer, lastUpdate uint64
-var expectDiskFsTypes = []string{
-	"apfs", "ext4", "ext3", "ext2", "f2fs", "reiserfs", "jfs", "btrfs",
-	"fuseblk", "zfs", "simfs", "ntfs", "fat32", "exfat", "xfs", "fuse.rclone",
-}
-var excludeNetInterfaces = []string{
-	"lo", "tun", "docker", "veth", "br-", "vmbr", "vnet", "kube",
-}
-var getMacDiskNo = regexp.MustCompile(`\/dev\/disk(\d)s.*`)
+var (
+	Version           string = "debug"
+	expectDiskFsTypes        = []string{
+		"apfs", "ext4", "ext3", "ext2", "f2fs", "reiserfs", "jfs", "btrfs",
+		"fuseblk", "zfs", "simfs", "ntfs", "fat32", "exfat", "xfs", "fuse.rclone",
+	}
+	excludeNetInterfaces = []string{
+		"lo", "tun", "docker", "veth", "br-", "vmbr", "vnet", "kube",
+	}
+	getMacDiskNo = regexp.MustCompile(`\/dev\/disk(\d)s.*`)
+)
+
+var (
+	netInSpeed, netOutSpeed, netInTransfer, netOutTransfer, lastUpdateNetStats uint64
+	cachedBootTime                                                             time.Time
+)

 func GetHost() *model.Host {
 	hi, _ := host.Info()
@ -58,6 +64,8 @@ func GetHost() *model.Host {
 		swapMemTotal = mv.SwapTotal
 	}

+	cachedBootTime = time.Now().Add(time.Duration(-1 * int64(hi.BootTime*1000)))
+
 	return &model.Host{
 		Platform:        hi.OS,
 		PlatformVersion: hi.PlatformVersion,
@ -74,8 +82,12 @@ func GetHost() *model.Host {
 	}
 }

-func GetState(skipConnectionCount bool) *model.HostState {
-	hi, _ := host.Info()
+func GetState(skipConnectionCount bool, skipProcsCount bool) *model.HostState {
+	var procs []int32
+	if !skipProcsCount {
+		procs, _ = process.Pids()
+	}
+
 	mv, _ := mem.VirtualMemory()

 	var swapMemUsed uint64
@ -92,11 +104,11 @@ func GetState(skipConnectionCount bool) *model.HostState {
 	if err == nil {
 		cpuPercent = cp[0]
 	}
+
 	_, diskUsed := getDiskTotalAndUsed()
 	loadStat, _ := load.Avg()

 	var tcpConnCount, udpConnCount uint64
-
 	if !skipConnectionCount {
 		conns, _ := net.Connections("all")
 		for i := 0; i < len(conns); i++ {
@ -114,17 +126,17 @@ func GetState(skipConnectionCount bool) *model.HostState {
 		MemUsed:        mv.Total - mv.Available,
 		SwapUsed:       swapMemUsed,
 		DiskUsed:       diskUsed,
-		NetInTransfer:  atomic.LoadUint64(&netInTransfer),
-		NetOutTransfer: atomic.LoadUint64(&netOutTransfer),
-		NetInSpeed:     atomic.LoadUint64(&netInSpeed),
-		NetOutSpeed:    atomic.LoadUint64(&netOutSpeed),
-		Uptime:         hi.Uptime,
+		NetInTransfer:  netInTransfer,
+		NetOutTransfer: netOutTransfer,
+		NetInSpeed:     netInSpeed,
+		NetOutSpeed:    netOutSpeed,
+		Uptime:         uint64(time.Since(cachedBootTime).Seconds()),
 		Load1:          loadStat.Load1,
 		Load5:          loadStat.Load5,
 		Load15:         loadStat.Load15,
 		TcpConnCount:   tcpConnCount,
 		UdpConnCount:   udpConnCount,
-		ProcessCount:   hi.Procs,
+		ProcessCount:   uint64(len(procs)),
 	}
 }

@ -140,14 +152,14 @@ func TrackNetworkSpeed() {
 			innerNetOutTransfer += v.BytesSent
 		}
 		now := uint64(time.Now().Unix())
-		diff := now - atomic.LoadUint64(&lastUpdate)
+		diff := now - lastUpdateNetStats
 		if diff > 0 {
-			atomic.StoreUint64(&netInSpeed, (innerNetInTransfer-atomic.LoadUint64(&netInTransfer))/diff)
-			atomic.StoreUint64(&netOutSpeed, (innerNetOutTransfer-atomic.LoadUint64(&netOutTransfer))/diff)
+			netInSpeed = (innerNetInTransfer - netInTransfer) / diff
+			netOutSpeed = (innerNetOutTransfer - netOutTransfer) / diff
 		}
-		atomic.StoreUint64(&netInTransfer, innerNetInTransfer)
-		atomic.StoreUint64(&netOutTransfer, innerNetOutTransfer)
-		atomic.StoreUint64(&lastUpdate, now)
+		netInTransfer = innerNetInTransfer
+		netOutTransfer = innerNetOutTransfer
+		lastUpdateNetStats = now
 	}
 }

--- a/cmd/agent/monitor/myip.go
+++ b/cmd/agent/monitor/myip.go
@ -35,13 +35,21 @@ func UpdateIP() {
 	for {
 		ipv4 := fetchGeoIP(geoIPApiList, false)
 		ipv6 := fetchGeoIP(geoIPApiList, true)
-		cachedIP = fmt.Sprintf("ip(v4:%s,v6:[%s])", ipv4.IP, ipv6.IP)
+		if ipv4.IP == "" && ipv6.IP == "" {
+			time.Sleep(time.Minute)
+			continue
+		}
+		if ipv4.IP == "" || ipv6.IP == "" {
+			cachedIP = fmt.Sprintf("%s%s", ipv4.IP, ipv6.IP)
+		} else {
+			cachedIP = fmt.Sprintf("%s/%s", ipv4.IP, ipv6.IP)
+		}
 		if ipv4.CountryCode != "" {
 			cachedCountry = ipv4.CountryCode
 		} else if ipv6.CountryCode != "" {
 			cachedCountry = ipv6.CountryCode
 		}
-		time.Sleep(time.Minute * 10)
+		time.Sleep(time.Minute * 30)
 	}
 }

--- a/cmd/dashboard/controller/controller.go
+++ b/cmd/dashboard/controller/controller.go
@ -112,7 +112,7 @@ func ServeWeb(port uint) *http.Server {
 		},
 	})
 	r.Static("/static", "resource/static")
-	r.LoadHTMLGlob("resource/template/**/*")
+	r.LoadHTMLGlob("resource/template/**/*.html")
 	routers(r)

 	page404 := func(c *gin.Context) {
--- a/cmd/dashboard/controller/member_api.go
+++ b/cmd/dashboard/controller/member_api.go
@ -267,19 +267,22 @@ func (ma *memberAPI) addOrEditCron(c *gin.Context) {
 		cr.Cover = cf.Cover
 		err = json.Unmarshal([]byte(cf.ServersRaw), &cr.Servers)
 	}
-	if err == nil {
-		_, err = cron.ParseStandard(cr.Scheduler)
-	}
+	tx := dao.DB.Begin()
 	if err == nil {
 		if cf.ID == 0 {
-			err = dao.DB.Create(&cr).Error
+			err = tx.Create(&cr).Error
 		} else {
-			err = dao.DB.Save(&cr).Error
+			err = tx.Save(&cr).Error
 		}
 	}
 	if err == nil {
 		cr.CronID, err = dao.Cron.AddFunc(cr.Scheduler, dao.CronTrigger(cr))
 	}
+	if err == nil {
+		err = tx.Commit().Error
+	} else {
+		tx.Rollback()
+	}
 	if err != nil {
 		c.JSON(http.StatusOK, model.Response{
 			Code:    http.StatusBadRequest,
--- a/cmd/dashboard/main.go
+++ b/cmd/dashboard/main.go
@ -25,7 +25,7 @@ func init() {

 	// 初始化 dao 包
 	dao.Conf = &model.Config{}
-	dao.Cron = cron.New(cron.WithLocation(shanghai))
+	dao.Cron = cron.New(cron.WithSeconds(), cron.WithLocation(shanghai))
 	dao.Crons = make(map[uint64]*model.Cron)
 	dao.ServerList = make(map[uint64]*model.Server)
 	dao.SecretToID = make(map[string]uint64)
@ -60,13 +60,13 @@ func initSystem() {
 	loadCrons()   //加载计划任务

 	// 清理 服务请求记录 和 流量记录 的旧数据
-	_, err := dao.Cron.AddFunc("30 3 * * *", cleanMonitorHistory)
+	_, err := dao.Cron.AddFunc("0 30 3 * * *", cleanMonitorHistory)
 	if err != nil {
 		panic(err)
 	}

 	// 流量记录打点
-	_, err = dao.Cron.AddFunc("0 * * * *", recordTransferHourlyUsage)
+	_, err = dao.Cron.AddFunc("0 0 * * * *", recordTransferHourlyUsage)
 	if err != nil {
 		panic(err)
 	}
@ -162,10 +162,11 @@ func loadCrons() {
 		}

 		cr.CronID, err = dao.Cron.AddFunc(cr.Scheduler, dao.CronTrigger(cr))
-		if err != nil {
-			panic(err)
+		if err == nil {
+			dao.Crons[cr.ID] = &cr
+		} else {
+			log.Println("NEZHA>> 计划任务调度失败", cr, err)
 		}
-		dao.Crons[cr.ID] = &cr
 	}
 	dao.Cron.Start()
 }
--- a/cmd/playground/main.go
+++ b/cmd/playground/main.go
@ -1,7 +1,25 @@
 package main

-import "github.com/naiba/nezha/cmd/agent/pty"
+import (
+	"log"
+
+	"github.com/robfig/cron/v3"
+)

 func main() {
-	pty.DownloadDependency()
+	c := cron.New(cron.WithSeconds())
+	_, err := c.AddFunc("* * * * * *", func() {
+		log.Println("bingo second")
+	})
+	if err != nil {
+		panic(err)
+	}
+	_, err = c.AddFunc("* * * * *", func() {
+		log.Println("bingo minute")
+	})
+	if err != nil {
+		panic(err)
+	}
+	c.Start()
+	select {}
 }
--- a/go.mod
+++ b/go.mod
@ -7,7 +7,7 @@ require (
 	github.com/artdarek/go-unzip v1.0.0
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/creack/pty v1.1.14
-	github.com/fsnotify/fsnotify v1.4.9
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/gin-contrib/pprof v1.3.0
 	github.com/gin-gonic/gin v1.7.0
 	github.com/go-ping/ping v0.0.0-20210407214646-e4e642a95741
@ -23,13 +23,14 @@ require (
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/robfig/cron/v3 v3.0.1
-	github.com/shirou/gopsutil/v3 v3.21.7
+	github.com/shirou/gopsutil/v3 v3.21.8
 	github.com/spf13/pflag v1.0.3
 	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.7.0
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
 	golang.org/x/net v0.0.0-20210423184538-5f58ad60dda6 // indirect
 	golang.org/x/oauth2 v0.0.0-20200902213428-5d25da1a8d43
+	golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6 // indirect
 	google.golang.org/grpc v1.33.1
 	google.golang.org/protobuf v1.25.0
 	gopkg.in/yaml.v2 v2.2.8
--- a/go.sum
+++ b/go.sum
@ -290,8 +290,8 @@ github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6So
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
-github.com/shirou/gopsutil/v3 v3.21.7 h1:PnTqQamUjwEDSgn+nBGu0qSDV/CfvyiR/gwTH3i7HTU=
-github.com/shirou/gopsutil/v3 v3.21.7/go.mod h1:RGl11Y7XMTQPmHh8F0ayC6haKNBgH4PXMJuTAcMOlz4=
+github.com/shirou/gopsutil/v3 v3.21.8 h1:nKct+uP0TV8DjjNiHanKf8SAuub+GNsbrOtM9Nl9biA=
+github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
@ -320,10 +320,10 @@ github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
 github.com/tcnksm/go-gitconfig v0.1.2 h1:iiDhRitByXAEyjgBqsKi9QU4o2TNtv9kPP3RgPgXBPw=
 github.com/tcnksm/go-gitconfig v0.1.2/go.mod h1:/8EhP4H7oJZdIPyT+/UIsG87kTzrzM4UsLGSItWYCpE=
-github.com/tklauser/go-sysconf v0.3.7 h1:HT7h4+536gjqeq1ZIJPgOl1rg1XFatQGVZWp7Py53eg=
-github.com/tklauser/go-sysconf v0.3.7/go.mod h1:JZIdXh4RmBvZDBZ41ld2bGxRV3n4daiiqA3skYhAoQ4=
-github.com/tklauser/numcpus v0.2.3 h1:nQ0QYpiritP6ViFhrKYsiv6VVxOpum2Gks5GhnJbS/8=
-github.com/tklauser/numcpus v0.2.3/go.mod h1:vpEPS/JC+oZGGQ/My/vJnNsvMDQL6PwOqt8dsCw5j+E=
+github.com/tklauser/go-sysconf v0.3.9 h1:JeUVdAOWhhxVcU6Eqr/ATFHgXk/mmiItdKeJPev3vTo=
+github.com/tklauser/go-sysconf v0.3.9/go.mod h1:11DU/5sG7UexIrp/O6g35hrWzu0JxlwQ3LSFUzyeuhs=
+github.com/tklauser/numcpus v0.3.0 h1:ILuRUQBtssgnxw0XXIjKUC56fgnOrFoQQ/4+DeU2biQ=
+github.com/tklauser/numcpus v0.3.0/go.mod h1:yFGUr7TUHQRAhyqBcEg0Ge34zDBAsIvJJcyE6boqnA8=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
@ -469,8 +469,9 @@ golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210816074244-15123e1e1f71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6 h1:foEbQz/B0Oz6YIqu/69kfXPYeFQAuuMYFkjaqXzl5Wo=
+golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
--- a/model/config.go
+++ b/model/config.go
@ -1,13 +1,11 @@
 package model

 import (
-	"fmt"
 	"io/ioutil"
 	"os"
 	"strconv"
 	"strings"

-	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/viper"
 	"gopkg.in/yaml.v2"
 )
@ -68,13 +66,6 @@ func (c *Config) Read(path string) error {
 	}

 	c.updateIgnoredIPNotificationID()
-
-	c.v.OnConfigChange(func(in fsnotify.Event) {
-		c.v.Unmarshal(c)
-		fmt.Println("配置文件更新，重载配置", c)
-	})
-
-	go c.v.WatchConfig()
 	return nil
 }

--- a/resource/template/common/menu.html
+++ b/resource/template/common/menu.html
@ -5,7 +5,7 @@
            <img src="/static/logo.svg?v20210804">
        </div>
        {{if .IsAdminPage}}
-        <a class='item{{if eq .MatchedPath "/server"}} active{{end}}' href="/server"><i class="server icon"></i>资产</a>
+        <a class='item{{if eq .MatchedPath "/server"}} active{{end}}' href="/server"><i class="server icon"></i>主机</a>
        <a class='item{{if eq .MatchedPath "/monitor"}} active{{end}}' href="/monitor"><i class="rss icon"></i>服务</a>
        <a class='item{{if eq .MatchedPath "/cron"}} active{{end}}' href="/cron"><i class="clock icon"></i>任务</a>
        <a class='item{{if eq .MatchedPath "/notification"}} active{{end}}' href="/notification"><i class="bell icon"></i>报警</a>
--- a/resource/template/component/cron.html
+++ b/resource/template/component/cron.html
@ -10,7 +10,7 @@
            </div>
            <div class="field">
                <label>计划</label>
-                <input type="text" name="Scheduler" placeholder="0 3 * * *（每天3点）">
+                <input type="text" name="Scheduler" placeholder="0 0 3 * * *（每天3点）">
            </div>
            <div class="field">
                <label>命令</label>
@ -41,7 +41,7 @@
        </form>
        <div class="ui warning message">
            <p>
-                计划的格式为：<code>* * * * *</code> 分 时 天 月 星期，详情见 <a
+                计划的格式为：<code>* * * * * *</code>&nbsp;秒 分 时 天 月 星期，详情见 <a
                    href="https://pkg.go.dev/github.com/robfig/cron/v3#hdr-CRON_Expression_Format"
                    target="_blank">计划表达式格式</a><br>
                命令：就像写 shell/bat 脚本一样，但是不推荐换行，多个命令使用 <code>&&</code>/<code>&</code> 连接，如果遇到 xxx 命令找不到，可能是
--- a/resource/template/dashboard/monitor.html
+++ b/resource/template/dashboard/monitor.html
@ -5,7 +5,7 @@
    <div class="ui grid">
      <div class="right floated right aligned twelve wide column">
        <button class="ui right labeled nezha-primary-btn icon button" onclick="addOrEditMonitor()">
-          <i class="add icon"></i> 添加监控
+          <i class="add icon"></i> 添加服务
        </button>
      </div>
    </div>
@ -43,7 +43,7 @@
                <i class="edit icon"></i>
              </button>
              <button class="ui button"
-                onclick="showConfirm('删除监控','确认删除此监控？',deleteRequest,'/api/monitor/'+{{$monitor.ID}})">
+                onclick="showConfirm('删除服务','确认删除此服务？',deleteRequest,'/api/monitor/'+{{$monitor.ID}})">
                <i class="trash alternate outline icon"></i>
              </button>
            </div>
--- a/resource/template/dashboard/server.html
+++ b/resource/template/dashboard/server.html
@ -6,7 +6,7 @@
        <div class="ui grid">
            <div class="right floated right aligned twelve wide column">
                <button class="ui right labeled nezha-primary-btn icon button" onclick="addOrEditServer()"><i
-                        class="add icon"></i> 添加服务器
+                        class="add icon"></i> 添加主机
                </button>
            </div>
        </div>
@ -56,7 +56,7 @@
                                <i class="edit icon"></i>
                            </button>
                            <button class="ui button"
-                                onclick="showConfirm('删除节点','确认删除此监控节点？',deleteRequest,'/api/server/'+{{$server.ID}})">
+                                onclick="showConfirm('删除主机','确认删除此主机？',deleteRequest,'/api/server/'+{{$server.ID}})">
                                <i class="trash alternate outline icon"></i>
                            </button>
                        </div>
--- a/resource/template/theme-daynight/screenshot.png
+++ b/resource/template/theme-daynight/screenshot.png
--- a/resource/template/theme-default/README.md
+++ b/resource/template/theme-default/README.md
@ -1 +0,0 @@
-# 默认主题
--- a/resource/template/theme-default/screenshot.png
+++ b/resource/template/theme-default/screenshot.png
--- a/resource/template/theme-hotaru/screenshot.png
+++ b/resource/template/theme-hotaru/screenshot.png
--- a/service/dao/dao.go
+++ b/service/dao/dao.go
@ -13,7 +13,7 @@ import (
 	pb "github.com/naiba/nezha/proto"
 )

-var Version = "v0.10.1" // ！！记得修改 README 中的 badge 版本！！
+var Version = "v0.10.2" // ！！记得修改 README 中的 badge 版本！！

 var (
 	Conf  *model.Config
--- a/service/dao/servicesentinel.go
+++ b/service/dao/servicesentinel.go
@ -10,7 +10,6 @@ import (

 	"github.com/naiba/nezha/model"
 	pb "github.com/naiba/nezha/proto"
-	"github.com/robfig/cron/v3"
 )

 const _CurrentStatusSize = 30 // 统计 15 分钟内的数据为当前状态
@ -42,11 +41,9 @@ func NewServiceSentinel(serviceSentinelDispatchBus chan<- model.Monitor) {
 		sslCertCache:                        make(map[uint64]string),
 		// 30天数据缓存
 		monthlyStatus: make(map[uint64]*model.ServiceItemResponse),
-		dispatchCron:  cron.New(cron.WithSeconds()),
 		dispatchBus:   serviceSentinelDispatchBus,
 	}
 	ServiceSentinelShared.loadMonitorHistory()
-	ServiceSentinelShared.dispatchCron.Start()

 	year, month, day := time.Now().Date()
 	today := time.Date(year, month, day, 0, 0, 0, 0, time.Local)
@ -75,7 +72,7 @@ func NewServiceSentinel(serviceSentinelDispatchBus chan<- model.Monitor) {
 	go ServiceSentinelShared.worker()

 	// 每日将游标往后推一天
-	_, err := Cron.AddFunc("0 0 * * *", ServiceSentinelShared.refreshMonthlyServiceStatus)
+	_, err := Cron.AddFunc("0 0 0 * * *", ServiceSentinelShared.refreshMonthlyServiceStatus)
 	if err != nil {
 		panic(err)
 	}
@ -102,8 +99,7 @@ type ServiceSentinel struct {
 	monthlyStatusLock sync.Mutex
 	monthlyStatus     map[uint64]*model.ServiceItemResponse
 	// 服务监控调度计划任务
-	dispatchCron *cron.Cron
-	dispatchBus  chan<- model.Monitor
+	dispatchBus chan<- model.Monitor
 }

 func (ss *ServiceSentinel) refreshMonthlyServiceStatus() {
@ -147,7 +143,7 @@ func (ss *ServiceSentinel) loadMonitorHistory() {
 	ss.monitors = make(map[uint64]*model.Monitor)
 	for i := 0; i < len(monitors); i++ {
 		task := *monitors[i]
-		monitors[i].CronJobID, err = ss.dispatchCron.AddFunc(task.CronSpec(), func() {
+		monitors[i].CronJobID, err = Cron.AddFunc(task.CronSpec(), func() {
 			ss.dispatchBus <- task
 		})
 		log.Println("NEZHA>> 服务监控任务", monitors[i].ID, monitors[i].Name, monitors[i].CronJobID)
@ -194,7 +190,7 @@ func (ss *ServiceSentinel) OnMonitorUpdate(m model.Monitor) error {
 	defer ss.monitorsLock.Unlock()
 	var err error
 	// 写入新任务
-	m.CronJobID, err = ss.dispatchCron.AddFunc(m.CronSpec(), func() {
+	m.CronJobID, err = Cron.AddFunc(m.CronSpec(), func() {
 		ss.dispatchBus <- m
 	})
 	if err != nil {
@ -202,7 +198,7 @@ func (ss *ServiceSentinel) OnMonitorUpdate(m model.Monitor) error {
 	}
 	if ss.monitors[m.ID] != nil {
 		// 停掉旧任务
-		ss.dispatchCron.Remove(ss.monitors[m.ID].CronJobID)
+		Cron.Remove(ss.monitors[m.ID].CronJobID)
 	} else {
 		// 新任务初始化数据
 		ss.monthlyStatusLock.Lock()
@ -236,7 +232,7 @@ func (ss *ServiceSentinel) OnMonitorDelete(id uint64) {
 	ss.monitorsLock.Lock()
 	defer ss.monitorsLock.Unlock()
 	// 停掉定时任务
-	ss.dispatchCron.Remove(ss.monitors[id].CronJobID)
+	Cron.Remove(ss.monitors[id].CronJobID)
 	delete(ss.monitors, id)
 	ss.monthlyStatusLock.Lock()
 	defer ss.monthlyStatusLock.Unlock()