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【Temporal】日志打印控制

article 2024/11/13 23:04:43

开启server日志级别

首先我们从代码出发看看应该怎么开启，进入到temporal server的启动入口：temporal/cmd/server/main.go

logger := log.NewZapLogger(log.BuildZapLogger(cfg.Log))
logger.Info("Build info.",
   tag.NewTimeTag("git-time", build.InfoData.GitTime),
   tag.NewStringTag("git-revision", build.InfoData.GitRevision),
   tag.NewBoolTag("git-modified", build.InfoData.GitModified),
   tag.NewStringTag("go-arch", build.InfoData.GoArch),
   tag.NewStringTag("go-os", build.InfoData.GoOs),
   tag.NewStringTag("go-version", build.InfoData.GoVersion),
   tag.NewBoolTag("cgo-enabled", build.InfoData.CgoEnabled),
   tag.NewStringTag("server-version", headers.ServerVersion),
   tag.NewBoolTag("debug-mode", debug.Enabled),
)


var dynamicConfigClient dynamicconfig.Client
if cfg.DynamicConfigClient != nil {
   dynamicConfigClient, err = dynamicconfig.NewFileBasedClient(cfg.DynamicConfigClient, logger, temporal.InterruptCh())
   if err != nil {
      return cli.Exit(fmt.Sprintf("Unable to create dynamic config client. Error: %v", err), 1)
   }
} else {
   dynamicConfigClient = dynamicconfig.NewNoopClient()
   logger.Info("Dynamic config client is not configured. Using noop client.")
}


authorizer, err := authorization.GetAuthorizerFromConfig(
   &cfg.Global.Authorization,
)
if err != nil {
   return cli.Exit(fmt.Sprintf("Unable to instantiate authorizer. Error: %v", err), 1)
}
if authorization.IsNoopAuthorizer(authorizer) && !allowNoAuth {
   logger.Warn(
      "Not using any authorizer and flag `--allow-no-auth` not detected. " +
         "Future versions will require using the flag `--allow-no-auth` " +
         "if you do not want to set an authorizer.",
   )
}


claimMapper, err := authorization.GetClaimMapperFromConfig(&cfg.Global.Authorization, logger)
if err != nil {
   return cli.Exit(fmt.Sprintf("Unable to instantiate claim mapper: %v.", err), 1)
}
s, err := temporal.NewServer(
   temporal.ForServices(services),
   temporal.WithConfig(cfg),
   temporal.WithDynamicConfigClient(dynamicConfigClient),
   temporal.WithLogger(logger),
   temporal.InterruptOn(temporal.InterruptCh()),
   temporal.WithAuthorizer(authorizer),
   temporal.WithClaimMapper(func(cfg *config.Config) authorization.ClaimMapper {
      return claimMapper
   }),
)
if err != nil {
   return cli.Exit(fmt.Sprintf("Unable to create server. Error: %v.", err), 1)
}


err = s.Start()
if err != nil {
   return cli.Exit(fmt.Sprintf("Unable to start server. Error: %v", err), 1)
}
return cli.Exit("All services are stopped.", 0)

上面是一部分的启动代码，可以看到，在构造server的时候传入了一个自定义的logger配置；我们看看这个logger配置，通过代码调用我们可以知道：

func parseZapLevel(level string) zapcore.Level {
   switch strings.ToLower(level) {
   case "debug":
      return zap.DebugLevel
   case "info":
      return zap.InfoLevel
   case "warn":
      return zap.WarnLevel
   case "error":
      return zap.ErrorLevel
   case "dpanic":
      return zap.DPanicLevel
   case "panic":
      return zap.PanicLevel
   case "fatal":
      return zap.FatalLevel
   default:
      return zap.InfoLevel
   }
}

这个日志级别可以通过配置文件的log.level字段来控制。

如果我们是通过temporal提供的k8s集群场景下安装命令来默认安装的话，会自动生成各个组件的configMap，我们找到这个configMap，可以看到是这样的：

log:
  stdout: true
  level: "debug"


persistence:
  defaultStore: default
  visibilityStore: visibility
  numHistoryShards: 512
  datastores:
    default:
      sql:
        pluginName: "mysql"
        driverName: "mysql"
        databaseName: "temporal"
        connectAddr: "11.141.232.141:3306"
        connectProtocol: "tcp"
        user: root
        password: "{{ .Env.TEMPORAL_STORE_PASSWORD }}"
        maxConnLifetime: 1h
        maxConns: 20
        secretName: ""
    visibility:
      sql:
        pluginName: "mysql"
        driverName: "mysql"
        databaseName: "temporal_visibility"
        connectAddr: "11.141.232.141:3306"
        connectProtocol: "tcp"
        user: "root"
        password: "{{ .Env.TEMPORAL_VISIBILITY_STORE_PASSWORD }}"
        maxConnLifetime: 1h
        maxConns: 20
        secretName: ""


global:
  membership:
    name: temporal
    maxJoinDuration: 30s
    broadcastAddress: {{ default .Env.POD_IP "0.0.0.0" }}


  pprof:
    port: 7936


  metrics:
    tags:
      type: history
    prometheus:
      timerType: histogram
      listenAddress: "0.0.0.0:9090"


services:
  frontend:
    rpc:
      grpcPort: 7233
      membershipPort: 6933
      bindOnIP: "0.0.0.0"


  history:
    rpc:
      grpcPort: 7234
      membershipPort: 6934
      bindOnIP: "0.0.0.0"


  matching:
    rpc:
      grpcPort: 7235
      membershipPort: 6935
      bindOnIP: "0.0.0.0"


  worker:
    rpc:
      grpcPort: 7239
      membershipPort: 6939
      bindOnIP: "0.0.0.0"
clusterMetadata:
  enableGlobalDomain: false
  failoverVersionIncrement: 10
  masterClusterName: "active"
  currentClusterName: "active"
  clusterInformation:
    active:
      enabled: true
      initialFailoverVersion: 1
      rpcName: "temporal-frontend"
      rpcAddress: "127.0.0.1:7933"
dcRedirectionPolicy:
  policy: "noop"
  toDC: ""
archival:
  status: "disabled"


publicClient:
  hostPort: "temporal-frontend:7233"


dynamicConfigClient:
  filepath: "/etc/temporal/dynamic_config/dynamic_config.yaml"
  pollInterval: "10s"

可以看到配置文件这里可以设置level。

开启SDK日志

在我们代码引入temporal的-go sdk，启动worker的时候，sdk代码里面有部分日志默认是不打印的，比如：

traceLog(func() {
   var firstEventID int64 = -1
   if response.History != nil && len(response.History.Events) > 0 {
      firstEventID = response.History.Events[0].GetEventId()
   }
   wtp.logger.Debug("workflowTaskPoller::Poll Succeed",
      "StartedEventID", response.GetStartedEventId(),
      "Attempt", response.GetAttempt(),
      "FirstEventID", firstEventID,
      "IsQueryTask", response.Query != nil)
})

我们进入这个traceLog方法：

func traceLog(fn func()) {
   if enableVerboseLogging {
      fn()
   }
}
var enableVerboseLogging = false


// EnableVerboseLogging enable or disable verbose logging. This is for internal use only.
func EnableVerboseLogging(enable bool) {
   enableVerboseLogging = enable
}

我们可以看到，这些日志时通过一个全局变量来控制的，默认时false，不打印。
并且我们可以看到，sdk提供了一个接口来调用设置这个变量。因此我们可以通过在启动worker的时候，设置这个变量为true。

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w := worker.New(*c, taskQueue, worker.Options{
   MaxConcurrentWorkflowTaskPollers:   100,
   MaxConcurrentActivityTaskPollers:   100,
   MaxConcurrentActivityExecutionSize: 1000,
   DeadlockDetectionTimeout:           time.Second * 60,
   EnableLoggingInReplay:              true,
})
worker.EnableVerboseLogging(true)

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