nezha/service/singleton/servicesentinel.go

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package singleton
import (
"cmp"
"fmt"
"iter"
"log"
"maps"
"slices"
"strings"
"sync"
"time"
"github.com/gin-gonic/gin"
"github.com/jinzhu/copier"
"golang.org/x/exp/constraints"
"github.com/nezhahq/nezha/model"
"github.com/nezhahq/nezha/pkg/utils"
pb "github.com/nezhahq/nezha/proto"
)
const (
_CurrentStatusSize = 30 // 统计 15 分钟内的数据为当前状态
)
type serviceResponseItem struct {
model.ServiceResponseItem
service *model.Service
}
type ReportData struct {
Data *pb.TaskResult
Reporter uint64
}
// _TodayStatsOfService 今日监控记录
type _TodayStatsOfService struct {
Up uint64 // 今日在线计数
Down uint64 // 今日离线计数
Delay float32 // 今日平均延迟
}
type serviceResponseData = _TodayStatsOfService
type serviceTaskStatus struct {
lastStatus uint8
t time.Time
result []*pb.TaskResult
}
type pingStore struct {
count int
ping float32
}
/*
使用缓存 channel处理上报的 Service 请求结果,然后判断是否需要报警
需要记录上一次的状态信息
加锁顺序serviceResponseDataStoreLock > monthlyStatusLock > servicesLock
*/
type ServiceSentinel struct {
// 服务监控任务上报通道
serviceReportChannel chan ReportData // 服务状态汇报管道
// 服务监控任务调度通道
dispatchBus chan<- *model.Service
serviceResponseDataStoreLock sync.RWMutex
serviceStatusToday map[uint64]*_TodayStatsOfService // [service_id] -> _TodayStatsOfService
serviceCurrentStatusData map[uint64]*serviceTaskStatus // 当前任务结果缓存
serviceResponseDataStore map[uint64]serviceResponseData // 当前数据
serviceResponsePing map[uint64]map[uint64]*pingStore // [service_id] -> ClientID -> delay
tlsCertCache map[uint64]string
servicesLock sync.RWMutex
serviceListLock sync.RWMutex
services map[uint64]*model.Service
serviceList []*model.Service
// 30天数据缓存
monthlyStatusLock sync.Mutex
monthlyStatus map[uint64]*serviceResponseItem
// references
serverc *ServerClass
notificationc *NotificationClass
crc *CronClass
}
// NewServiceSentinel 创建服务监控器
func NewServiceSentinel(serviceSentinelDispatchBus chan<- *model.Service, sc *ServerClass, nc *NotificationClass, crc *CronClass) (*ServiceSentinel, error) {
ss := &ServiceSentinel{
serviceReportChannel: make(chan ReportData, 200),
serviceStatusToday: make(map[uint64]*_TodayStatsOfService),
serviceCurrentStatusData: make(map[uint64]*serviceTaskStatus),
serviceResponseDataStore: make(map[uint64]serviceResponseData),
serviceResponsePing: make(map[uint64]map[uint64]*pingStore),
services: make(map[uint64]*model.Service),
tlsCertCache: make(map[uint64]string),
// 30天数据缓存
monthlyStatus: make(map[uint64]*serviceResponseItem),
dispatchBus: serviceSentinelDispatchBus,
serverc: sc,
notificationc: nc,
crc: crc,
}
// 加载历史记录
err := ss.loadServiceHistory()
if err != nil {
return nil, err
}
year, month, day := time.Now().Date()
today := time.Date(year, month, day, 0, 0, 0, 0, Loc)
var mhs []model.ServiceHistory
// 加载当日记录
DB.Where("created_at >= ?", today).Find(&mhs)
totalDelay := make(map[uint64]float32)
totalDelayCount := make(map[uint64]float32)
for _, mh := range mhs {
totalDelay[mh.ServiceID] += mh.AvgDelay
totalDelayCount[mh.ServiceID]++
ss.serviceStatusToday[mh.ServiceID].Up += mh.Up
ss.monthlyStatus[mh.ServiceID].TotalUp += mh.Up
ss.serviceStatusToday[mh.ServiceID].Down += mh.Down
ss.monthlyStatus[mh.ServiceID].TotalDown += mh.Down
}
for id, delay := range totalDelay {
ss.serviceStatusToday[id].Delay = delay / float32(totalDelayCount[id])
}
// 启动服务监控器
go ss.worker()
// 每日将游标往后推一天
_, err = crc.AddFunc("0 0 0 * * *", ss.refreshMonthlyServiceStatus)
if err != nil {
return nil, err
}
return ss, nil
}
func (ss *ServiceSentinel) refreshMonthlyServiceStatus() {
// 刷新数据防止无人访问
ss.LoadStats()
// 将数据往前刷一天
ss.serviceResponseDataStoreLock.Lock()
defer ss.serviceResponseDataStoreLock.Unlock()
ss.monthlyStatusLock.Lock()
defer ss.monthlyStatusLock.Unlock()
for k, v := range ss.monthlyStatus {
for i := range len(v.Up) - 1 {
if i == 0 {
// 30 天在线率减去已经出30天之外的数据
v.TotalDown -= v.Down[i]
v.TotalUp -= v.Up[i]
}
v.Up[i], v.Down[i], v.Delay[i] = v.Up[i+1], v.Down[i+1], v.Delay[i+1]
}
v.Up[29] = 0
v.Down[29] = 0
v.Delay[29] = 0
// 清理前一天数据
ss.serviceResponseDataStore[k] = serviceResponseData{}
ss.serviceStatusToday[k].Delay = 0
ss.serviceStatusToday[k].Up = 0
ss.serviceStatusToday[k].Down = 0
}
}
// Dispatch 将传入的 ReportData 传给 服务状态汇报管道
func (ss *ServiceSentinel) Dispatch(r ReportData) {
ss.serviceReportChannel <- r
}
func (ss *ServiceSentinel) UpdateServiceList() {
ss.servicesLock.RLock()
defer ss.servicesLock.RUnlock()
ss.serviceListLock.Lock()
defer ss.serviceListLock.Unlock()
ss.serviceList = utils.MapValuesToSlice(ss.services)
slices.SortFunc(ss.serviceList, func(a, b *model.Service) int {
return cmp.Compare(a.ID, b.ID)
})
}
// loadServiceHistory 加载服务监控器的历史状态信息
func (ss *ServiceSentinel) loadServiceHistory() error {
var services []*model.Service
err := DB.Find(&services).Error
if err != nil {
return err
}
for _, service := range services {
task := service
// 通过cron定时将服务监控任务传递给任务调度管道
service.CronJobID, err = ss.crc.AddFunc(task.CronSpec(), func() {
ss.dispatchBus <- task
})
if err != nil {
return err
}
ss.services[service.ID] = service
ss.serviceCurrentStatusData[service.ID] = new(serviceTaskStatus)
ss.serviceCurrentStatusData[service.ID].result = make([]*pb.TaskResult, 0, _CurrentStatusSize)
ss.serviceStatusToday[service.ID] = &_TodayStatsOfService{}
}
ss.serviceList = services
year, month, day := time.Now().Date()
today := time.Date(year, month, day, 0, 0, 0, 0, Loc)
for _, service := range services {
ss.monthlyStatus[service.ID] = &serviceResponseItem{
service: service,
ServiceResponseItem: model.ServiceResponseItem{
Delay: &[30]float32{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
Up: &[30]uint64{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
Down: &[30]uint64{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
},
}
}
// 加载服务监控历史记录
var mhs []model.ServiceHistory
DB.Where("created_at > ? AND created_at < ?", today.AddDate(0, 0, -29), today).Find(&mhs)
var delayCount = make(map[int]int)
for _, mh := range mhs {
dayIndex := 28 - (int(today.Sub(mh.CreatedAt).Hours()) / 24)
if dayIndex < 0 {
continue
}
ss.monthlyStatus[mh.ServiceID].Delay[dayIndex] = (ss.monthlyStatus[mh.ServiceID].Delay[dayIndex]*float32(delayCount[dayIndex]) + mh.AvgDelay) / float32(delayCount[dayIndex]+1)
delayCount[dayIndex]++
ss.monthlyStatus[mh.ServiceID].Up[dayIndex] += mh.Up
ss.monthlyStatus[mh.ServiceID].TotalUp += mh.Up
ss.monthlyStatus[mh.ServiceID].Down[dayIndex] += mh.Down
ss.monthlyStatus[mh.ServiceID].TotalDown += mh.Down
}
return nil
}
func (ss *ServiceSentinel) Update(m *model.Service) error {
ss.serviceResponseDataStoreLock.Lock()
defer ss.serviceResponseDataStoreLock.Unlock()
ss.monthlyStatusLock.Lock()
defer ss.monthlyStatusLock.Unlock()
ss.servicesLock.Lock()
defer ss.servicesLock.Unlock()
var err error
// 写入新任务
m.CronJobID, err = ss.crc.AddFunc(m.CronSpec(), func() {
ss.dispatchBus <- m
})
if err != nil {
return err
}
if ss.services[m.ID] != nil {
// 停掉旧任务
ss.crc.Remove(ss.services[m.ID].CronJobID)
} else {
// 新任务初始化数据
ss.monthlyStatus[m.ID] = &serviceResponseItem{
service: m,
ServiceResponseItem: model.ServiceResponseItem{
Delay: &[30]float32{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
Up: &[30]uint64{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
Down: &[30]uint64{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
},
}
if ss.serviceCurrentStatusData[m.ID] == nil {
ss.serviceCurrentStatusData[m.ID] = new(serviceTaskStatus)
}
ss.serviceCurrentStatusData[m.ID].result = make([]*pb.TaskResult, 0, _CurrentStatusSize)
ss.serviceStatusToday[m.ID] = &_TodayStatsOfService{}
}
// 更新这个任务
ss.services[m.ID] = m
return nil
}
func (ss *ServiceSentinel) Delete(ids []uint64) {
ss.serviceResponseDataStoreLock.Lock()
defer ss.serviceResponseDataStoreLock.Unlock()
ss.monthlyStatusLock.Lock()
defer ss.monthlyStatusLock.Unlock()
ss.servicesLock.Lock()
defer ss.servicesLock.Unlock()
for _, id := range ids {
delete(ss.serviceCurrentStatusData, id)
delete(ss.serviceResponseDataStore, id)
delete(ss.tlsCertCache, id)
delete(ss.serviceStatusToday, id)
// 停掉定时任务
ss.crc.Remove(ss.services[id].CronJobID)
delete(ss.services, id)
delete(ss.monthlyStatus, id)
}
}
func (ss *ServiceSentinel) LoadStats() map[uint64]*serviceResponseItem {
ss.servicesLock.RLock()
defer ss.servicesLock.RUnlock()
ss.serviceResponseDataStoreLock.RLock()
defer ss.serviceResponseDataStoreLock.RUnlock()
ss.monthlyStatusLock.Lock()
defer ss.monthlyStatusLock.Unlock()
// 刷新最新一天的数据
for k := range ss.services {
ss.monthlyStatus[k].service = ss.services[k]
v := ss.serviceStatusToday[k]
// 30 天在线率,
// |- 减去上次加的旧当天数据,防止出现重复计数
ss.monthlyStatus[k].TotalUp -= ss.monthlyStatus[k].Up[29]
ss.monthlyStatus[k].TotalDown -= ss.monthlyStatus[k].Down[29]
// |- 加上当日数据
ss.monthlyStatus[k].TotalUp += v.Up
ss.monthlyStatus[k].TotalDown += v.Down
ss.monthlyStatus[k].Up[29] = v.Up
ss.monthlyStatus[k].Down[29] = v.Down
ss.monthlyStatus[k].Delay[29] = v.Delay
}
// 最后 5 分钟的状态 与 service 对象填充
for k, v := range ss.serviceResponseDataStore {
ss.monthlyStatus[k].CurrentDown = v.Down
ss.monthlyStatus[k].CurrentUp = v.Up
}
return ss.monthlyStatus
}
func (ss *ServiceSentinel) CopyStats() map[uint64]model.ServiceResponseItem {
var stats map[uint64]*serviceResponseItem
copier.Copy(&stats, ss.LoadStats())
sri := make(map[uint64]model.ServiceResponseItem)
for k, service := range stats {
if !service.service.EnableShowInService {
delete(stats, k)
continue
}
service.ServiceName = service.service.Name
sri[k] = service.ServiceResponseItem
}
return sri
}
func (ss *ServiceSentinel) Get(id uint64) (s *model.Service, ok bool) {
ss.servicesLock.RLock()
defer ss.servicesLock.RUnlock()
s, ok = ss.services[id]
return
}
func (ss *ServiceSentinel) GetList() map[uint64]*model.Service {
ss.servicesLock.RLock()
defer ss.servicesLock.RUnlock()
return maps.Clone(ss.services)
}
func (ss *ServiceSentinel) GetSortedList() []*model.Service {
ss.serviceListLock.RLock()
defer ss.serviceListLock.RUnlock()
return slices.Clone(ss.serviceList)
}
func (ss *ServiceSentinel) CheckPermission(c *gin.Context, idList iter.Seq[uint64]) bool {
ss.servicesLock.RLock()
defer ss.servicesLock.RUnlock()
for id := range idList {
if s, ok := ss.services[id]; ok {
if !s.HasPermission(c) {
return false
}
}
}
return true
}
// worker 服务监控的实际工作流程
func (ss *ServiceSentinel) worker() {
// 从服务状态汇报管道获取汇报的服务数据
for r := range ss.serviceReportChannel {
css, _ := ss.Get(r.Data.GetId())
if css == nil || css.ID == 0 {
log.Printf("NEZHA>> Incorrect service monitor report %+v", r)
continue
}
css = nil
mh := r.Data
if mh.Type == model.TaskTypeTCPPing || mh.Type == model.TaskTypeICMPPing {
serviceTcpMap, ok := ss.serviceResponsePing[mh.GetId()]
if !ok {
serviceTcpMap = make(map[uint64]*pingStore)
ss.serviceResponsePing[mh.GetId()] = serviceTcpMap
}
ts, ok := serviceTcpMap[r.Reporter]
if !ok {
ts = &pingStore{}
}
ts.count++
ts.ping = (ts.ping*float32(ts.count-1) + mh.Delay) / float32(ts.count)
if ts.count == Conf.AvgPingCount {
ts.count = 0
if err := DB.Create(&model.ServiceHistory{
ServiceID: mh.GetId(),
AvgDelay: ts.ping,
Data: mh.Data,
ServerID: r.Reporter,
}).Error; err != nil {
log.Printf("NEZHA>> Failed to save service monitor metrics: %v", err)
}
ts.ping = mh.Delay
}
serviceTcpMap[r.Reporter] = ts
}
ss.serviceResponseDataStoreLock.Lock()
// 写入当天状态
if mh.Successful {
ss.serviceStatusToday[mh.GetId()].Delay = (ss.serviceStatusToday[mh.
GetId()].Delay*float32(ss.serviceStatusToday[mh.GetId()].Up) +
mh.Delay) / float32(ss.serviceStatusToday[mh.GetId()].Up+1)
ss.serviceStatusToday[mh.GetId()].Up++
} else {
ss.serviceStatusToday[mh.GetId()].Down++
}
currentTime := time.Now()
if ss.serviceCurrentStatusData[mh.GetId()].t.IsZero() {
ss.serviceCurrentStatusData[mh.GetId()].t = currentTime
}
// 写入当前数据
if ss.serviceCurrentStatusData[mh.GetId()].t.Before(currentTime) {
ss.serviceCurrentStatusData[mh.GetId()].t = currentTime.Add(30 * time.Second)
ss.serviceCurrentStatusData[mh.GetId()].result = append(ss.serviceCurrentStatusData[mh.GetId()].result, mh)
}
// 更新当前状态
ss.serviceResponseDataStore[mh.GetId()] = serviceResponseData{}
// 永远是最新的 30 个数据的状态 [01:00, 02:00, 03:00] -> [04:00, 02:00, 03: 00]
for _, cs := range ss.serviceCurrentStatusData[mh.GetId()].result {
if cs.GetId() > 0 {
rd := ss.serviceResponseDataStore[mh.GetId()]
if cs.Successful {
rd.Up++
rd.Delay = (rd.Delay*float32(rd.Up-1) + cs.Delay) / float32(rd.Up)
} else {
rd.Down++
}
ss.serviceResponseDataStore[mh.GetId()] = rd
}
}
// 计算在线率,
var stateCode uint8
{
upPercent := uint64(0)
rd := ss.serviceResponseDataStore[mh.GetId()]
if rd.Down+rd.Up > 0 {
upPercent = rd.Up * 100 / (rd.Down + rd.Up)
}
stateCode = GetStatusCode(upPercent)
}
// 数据持久化
if len(ss.serviceCurrentStatusData[mh.GetId()].result) == _CurrentStatusSize {
ss.serviceCurrentStatusData[mh.GetId()].t = currentTime
rd := ss.serviceResponseDataStore[mh.GetId()]
if err := DB.Create(&model.ServiceHistory{
ServiceID: mh.GetId(),
AvgDelay: rd.Delay,
Data: mh.Data,
Up: rd.Up,
Down: rd.Down,
}).Error; err != nil {
log.Printf("NEZHA>> Failed to save service monitor metrics: %v", err)
}
clear(ss.serviceCurrentStatusData[mh.GetId()].result)
ss.serviceCurrentStatusData[mh.GetId()].result = ss.serviceCurrentStatusData[mh.GetId()].result[:0]
}
cs, _ := ss.Get(mh.GetId())
m := ss.serverc.GetList()
// 延迟报警
if mh.Delay > 0 {
delayCheck(&r, ss.notificationc, m, cs, mh)
}
// 状态变更报警+触发任务执行
if stateCode == StatusDown || stateCode != ss.serviceCurrentStatusData[mh.GetId()].lastStatus {
lastStatus := ss.serviceCurrentStatusData[mh.GetId()].lastStatus
// 存储新的状态值
ss.serviceCurrentStatusData[mh.GetId()].lastStatus = stateCode
notifyCheck(&r, ss.notificationc, ss.crc, m, cs, mh, lastStatus, stateCode)
}
ss.serviceResponseDataStoreLock.Unlock()
// TLS 证书报警
var errMsg string
if strings.HasPrefix(mh.Data, "SSL证书错误") {
// i/o timeout、connection timeout、EOF 错误
if !strings.HasSuffix(mh.Data, "timeout") &&
!strings.HasSuffix(mh.Data, "EOF") &&
!strings.HasSuffix(mh.Data, "timed out") {
errMsg = mh.Data
if cs.Notify {
muteLabel := NotificationMuteLabel.ServiceTLS(mh.GetId(), "network")
go ss.notificationc.SendNotification(cs.NotificationGroupID, Localizer.Tf("[TLS] Fetch cert info failed, Reporter: %s, Error: %s", cs.Name, errMsg), muteLabel)
}
}
} else {
// 清除网络错误静音缓存
ss.notificationc.UnMuteNotification(cs.NotificationGroupID, NotificationMuteLabel.ServiceTLS(mh.GetId(), "network"))
var newCert = strings.Split(mh.Data, "|")
if len(newCert) > 1 {
enableNotify := cs.Notify
// 首次获取证书信息时,缓存证书信息
if ss.tlsCertCache[mh.GetId()] == "" {
ss.tlsCertCache[mh.GetId()] = mh.Data
}
oldCert := strings.Split(ss.tlsCertCache[mh.GetId()], "|")
isCertChanged := false
expiresOld, _ := time.Parse("2006-01-02 15:04:05 -0700 MST", oldCert[1])
expiresNew, _ := time.Parse("2006-01-02 15:04:05 -0700 MST", newCert[1])
// 证书变更时,更新缓存
if oldCert[0] != newCert[0] && !expiresNew.Equal(expiresOld) {
isCertChanged = true
ss.tlsCertCache[mh.GetId()] = mh.Data
}
notificationGroupID := cs.NotificationGroupID
serviceName := cs.Name
// 需要发送提醒
if enableNotify {
// 证书过期提醒
if expiresNew.Before(time.Now().AddDate(0, 0, 7)) {
expiresTimeStr := expiresNew.Format("2006-01-02 15:04:05")
errMsg = Localizer.Tf(
"The TLS certificate will expire within seven days. Expiration time: %s",
expiresTimeStr,
)
// 静音规则: 服务id+证书过期时间
// 用于避免多个监测点对相同证书同时报警
muteLabel := NotificationMuteLabel.ServiceTLS(mh.GetId(), fmt.Sprintf("expire_%s", expiresTimeStr))
go ss.notificationc.SendNotification(notificationGroupID, fmt.Sprintf("[TLS] %s %s", serviceName, errMsg), muteLabel)
}
// 证书变更提醒
if isCertChanged {
errMsg = Localizer.Tf(
"TLS certificate changed, old: issuer %s, expires at %s; new: issuer %s, expires at %s",
oldCert[0], expiresOld.Format("2006-01-02 15:04:05"), newCert[0], expiresNew.Format("2006-01-02 15:04:05"))
// 证书变更后会自动更新缓存,所以不需要静音
go ss.notificationc.SendNotification(notificationGroupID, fmt.Sprintf("[TLS] %s %s", serviceName, errMsg), "")
}
}
}
}
}
}
func delayCheck(r *ReportData, nc *NotificationClass, m map[uint64]*model.Server, ss *model.Service, mh *pb.TaskResult) {
if !ss.LatencyNotify {
return
}
notificationGroupID := ss.NotificationGroupID
minMuteLabel := NotificationMuteLabel.ServiceLatencyMin(mh.GetId())
maxMuteLabel := NotificationMuteLabel.ServiceLatencyMax(mh.GetId())
if mh.Delay > ss.MaxLatency {
// 延迟超过最大值
reporterServer := m[r.Reporter]
msg := Localizer.Tf("[Latency] %s %2f > %2f, Reporter: %s", ss.Name, mh.Delay, ss.MaxLatency, reporterServer.Name)
go nc.SendNotification(notificationGroupID, msg, minMuteLabel)
} else if mh.Delay < ss.MinLatency {
// 延迟低于最小值
reporterServer := m[r.Reporter]
msg := Localizer.Tf("[Latency] %s %2f < %2f, Reporter: %s", ss.Name, mh.Delay, ss.MinLatency, reporterServer.Name)
go nc.SendNotification(notificationGroupID, msg, maxMuteLabel)
} else {
// 正常延迟, 清除静音缓存
nc.UnMuteNotification(notificationGroupID, minMuteLabel)
nc.UnMuteNotification(notificationGroupID, maxMuteLabel)
}
}
func notifyCheck(r *ReportData, nc *NotificationClass, crc *CronClass, m map[uint64]*model.Server,
ss *model.Service, mh *pb.TaskResult, lastStatus, stateCode uint8) {
// 判断是否需要发送通知
isNeedSendNotification := ss.Notify && (lastStatus != 0 || stateCode == StatusDown)
if isNeedSendNotification {
reporterServer := m[r.Reporter]
notificationGroupID := ss.NotificationGroupID
notificationMsg := Localizer.Tf("[%s] %s Reporter: %s, Error: %s", StatusCodeToString(stateCode), ss.Name, reporterServer.Name, mh.Data)
muteLabel := NotificationMuteLabel.ServiceStateChanged(mh.GetId())
// 状态变更时,清除静音缓存
if stateCode != lastStatus {
nc.UnMuteNotification(notificationGroupID, muteLabel)
}
go nc.SendNotification(notificationGroupID, notificationMsg, muteLabel)
}
// 判断是否需要触发任务
isNeedTriggerTask := ss.EnableTriggerTask && lastStatus != 0
if isNeedTriggerTask {
reporterServer := m[r.Reporter]
if stateCode == StatusGood && lastStatus != stateCode {
// 当前状态正常 前序状态非正常时 触发恢复任务
go crc.SendTriggerTasks(ss.RecoverTriggerTasks, reporterServer.ID)
} else if lastStatus == StatusGood && lastStatus != stateCode {
// 前序状态正常 当前状态非正常时 触发失败任务
go crc.SendTriggerTasks(ss.FailTriggerTasks, reporterServer.ID)
}
}
}
const (
_ = iota
StatusNoData
StatusGood
StatusLowAvailability
StatusDown
)
func GetStatusCode[T constraints.Float | constraints.Integer](percent T) uint8 {
if percent == 0 {
return StatusNoData
}
if percent > 95 {
return StatusGood
}
if percent > 80 {
return StatusLowAvailability
}
return StatusDown
}
func StatusCodeToString(statusCode uint8) string {
switch statusCode {
case StatusNoData:
return Localizer.T("No Data")
case StatusGood:
return Localizer.T("Good")
case StatusLowAvailability:
return Localizer.T("Low Availability")
case StatusDown:
return Localizer.T("Down")
default:
return ""
}
}