[英]Logging the execution of a Hangfire RecurringJob in database?
我已經建立了遲發型我的ASP.NET項目,即11代遲發型表在我的數據庫中創建成功。 我在項目的Global.asax
的Application_Start()
中嘗試了以下命令:
namespace myAPI
{
public class WebApiApplication : System.Web.HttpApplication
{
protected void Application_Start(
{
System.Diagnostics.Debug.WriteLine("Recurring job will be set up.");
RecurringJob.AddOrUpdate(
"some-id",
() => System.Diagnostics.Debug.WriteLine("Job instance started at " +
DateTime.Now)),
"*/2 * * * 1-5");
}
}
}
遺憾的是,在 Visual Studio 的窗口輸出 > 調試中,我只看到Reccuring job will be set up.
之后就什么都沒有了。 但是,一個SELECT * FROM [myContext].[HangFire].[Set]
顯示了我
Key Score Value ExpireAt
recurring-jobs 1579116240 some-id NULL
到目前為止一切順利,這意味着該工作確實已建立。
但是,如何在每次執行 RecurringJob 時登錄我的數據庫? 我是否正確地假設 Hangfire 沒有開箱即用,我必須自己在箭頭函數中記錄它? 或者有更優雅的方式嗎?
附帶問題:為什么在我的重復作業中看不到System.Diagnostics.Debug.WriteLine
任何輸出?
Hangfire 包含一個作業過濾器的概念(類似於 ASP.NET MVC 的操作過濾器)。 對於您的用例,您將定義一個將寫入您的數據庫(根據您的需要進行調整):
using Hangfire.Common;
using Hangfire.Server;
class LogCompletionAttribute : JobFilterAttribute, IServerFilter
{
public void OnPerforming(PerformingContext filterContext)
{
// Code here if you care when the execution **has begun**
}
public void OnPerformed(PerformedContext context)
{
// Check that the job completed successfully
if (!context.Canceled && context.Exception != null)
{
// Here you would write to your database.
// Example with entity framework:
using (var ctx = new YourDatabaseContext())
{
ctx.Something.Add(/**/);
ctx.SaveChanges();
}
}
}
}
然后將過濾器應用於作業方法:
namespace myAPI
{
public class WebApiApplication : System.Web.HttpApplication
{
protected void Application_Start(
{
System.Diagnostics.Debug.WriteLine("Recurring job will be set up.");
RecurringJob.AddOrUpdate("some-id", () => MyJob(), "*/2 * * * 1-5");
}
[LogCompletion]
public static void MyJob()
{
System.Diagnostics.Debug.WriteLine("Job instance started at " + DateTime.Now)
}
}
}
文檔: https : //docs.hangfire.io/en/latest/extensibility/using-job-filters.html
您可以開箱即用地將SeriLog 與 Hangfire 結合使用。 Serilog 帶有不同的接收器,例如Serilog.Sinks.MSSqlServer
。 您可以在startup.cs
配置它:
using Serilog;
using Serilog.Sinks.MSSqlServer;
Log.Logger = new LoggerConfiguration()
.WriteTo
.MSSqlServer(
connectionString: hangfireConnectionString,
tableName: "Logs",
autoCreateSqlTable: true
).CreateLogger();
// will display any issues with Serilog config. comment out in prod.
Serilog.Debugging.SelfLog.Enable(msg => Debug.WriteLine(msg));
GlobalConfiguration.Configuration
.UseSqlServerStorage(hangfireConnectionString)
.UseSerilogLogProvider();
安排工作后,您可以使用
Log.Information(string.Format("Hanfire Job Scheduled at {0}", DateTime.Now));
因此, cron 設置為在從 Monday 到 Friday 的每一天的每 2 分鍾觸發一次。 我假設您正在等待作業執行並且它處於正確的時間窗口。
我在網上找到的大多數參考資料都表明您可以做到。
RecurringJob.AddOrUpdate(() => Console.WriteLine("This job will execute once in every minute"), Cron.Minutely);
也許你必須更好地排列這些點才能寫入 vs 控制台。
還有一個管理門戶,可以配置為查看開始運行的內容和時間。
我有以下設置。 Global.asax.cs
protected void Application_Start()
{
HangfireJobsConfig.Register();
}
public class HangfireJobsConfig
{
public static void Register()
{
if (App1Config.RunHangfireService)
{
JobStorage.Current = new SqlServerStorage(App1Config.DefaultConnectionStringName.Split('=').Last());
GlobalConfiguration.Configuration.UseConsole();
RecurringJob.AddOrUpdate("RunJob1", () => RunJob1(null), Cron.MinuteInterval(App1Config.RunJob1Interval));
RecurringJob.AddOrUpdate("RunJob2", () => RunJob2(null), Cron.MinuteInterval(App1Config.RunJob2Interval));
}
}
[AutomaticRetry(Attempts = 0, Order = 1)]
public static void RunJob1(PerformContext context)
{
//dostuff
}
[AutomaticRetry(Attempts = 0, Order = 2)]
public static void RunJob2(PerformContext context)
{
//do stuff
}
}
啟動文件
public partial class Startup
{
public void Configuration(IAppBuilder app)
{
ConfigureAuth(app);
ConfigureHangFire(app);
}
public void ConfigureHangFire(IAppBuilder app)
{
if (App1Config.RunHangfireService)
{
GlobalConfiguration.Configuration.UseSqlServerStorage(
AppiConfig.DefaultConnectionStringName.Split('=').Last());
GlobalConfiguration.Configuration.UseConsole();
app.UseHangfireServer();
var options = new DashboardOptions
{
AuthorizationFilters = new[]
{
new AuthorizationFilter { Roles = "Inventory" }
}
};
app.UseHangfireDashboard("/hangfire", options);
}
}
}
實際問題是一個非常微不足道的問題,實際后台服務器的初始化缺少BackgroundJobServer();
. 這里是功能齊全的代碼:
namespace myAPI
{
public class WebApiApplication : System.Web.HttpApplication
{
protected void Application_Start()
{
string connString = ConfigurationManager.ConnectionStrings["myContext"].ToString();
Hangfire.GlobalConfiguration.Configuration.UseConsole();
Hangfire.GlobalConfiguration.Configuration.UseSqlServerStorage(connString,
new SqlServerStorageOptions {
CommandBatchMaxTimeout = TimeSpan.FromMinutes(5),
SlidingInvisibilityTimeout = TimeSpan.FromMinutes(5),
QueuePollInterval = TimeSpan.Zero,
UseRecommendedIsolationLevel = true,
UsePageLocksOnDequeue = true,
DisableGlobalLocks = true
});
var bgndJS = new BackgroundJobServer(); // <--- this is essential!
RecurringJob.AddOrUpdate("myRecurringJob", () => HangfireRecurringJob(), "*/2 * * * 1-5");
System.Diagnostics.Debug.WriteLine("---> RecurringJob 'myHangfireJob' initated.");
}
public void HangfireRecurringJob() {
System.Diagnostics.Debug.WriteLine("---> HangfireRecurringJob() executed at" + DateTime.Now);
Console.Beep(); // <-- I was really happy to hear the beep
}
}
}
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