And it supports different styles and techniques of background job processing. Jobs are en-queued but it's not processing, https://user-images.githubusercontent.com/3822009/83284813-7b117a80-a19a-11ea-92f5-b4ab35b5fe81.png, https://github.com/notifications/unsubscribe-auth/AES6XSMQEWVO7BWFFF63GNLRT7R6JANCNFSM4FITZ2UQ. Have a question about this project? Now run the application & you should be below screen when you navigate to URL /Email, Lets look at how to implement each type of job in Hangfire in ASP.NET Core. The information available on the dashboard is as follows. EmailController into which we will inject IEmailService to call method SendEmail from service in controller action method SendEmail. Asking for help, clarification, or responding to other answers. ASP.NET Core Unit Testing Powered by Discourse, best viewed with JavaScript enabled. Already on GitHub? Update: I have reverted the version to 1.17.12 to see if it solve that. To place a job into a different queue, use the QueueAttribute class on your method: For example, the EnqueuedState handler adds jobs to their corresponding queue in storage. SF story, telepathic boy hunted as vampire (pre-1980). They simply sit in the queued jobs tab. ***> wrote: I'm having this issue, some jobs are not processing and have days in the queue, and these jobs last at least 15 seconds to complete. This creates a higher demand for all kinds of services. Seems like all jobs stopped around noon. the second job should execute provided that the first/parent job has executed correctly. We resolved the problem by Recurring Jobs List of all the jobs which have been scheduled as recurring jobs can be seen. Hangfire.Dashboard.Management 1.7.5 Hangfire.Core 1.7.7 It's almost impossible to find out what's happened without additional information, please see the following link and describe everything, including "ProTips" section. UPDATE Java Arrays Thanks for contributing an answer to Stack Overflow! What do I miss to send the email? The rest are 0's Looks like all of the processing jobs for the the git sync 881315 9.33 KB 879752 23.2 KB I have push only sync enabled. The problem still exist. Hangfire in ASP.NET Core even supports persistent storage like Microsoft SQL Server, Redis (as part of Hangfire Pro), etc. ASP.NET Core 5 The Dispose method is a blocking one, it waits until all the components prepare for shutdown (for example, workers will place back interrupted jobs to their queues). AddHangfire This adds Hangfire in ASP.NET Core to the dependency injection container and takes an Action delegate using which we have set the connection string for SQL Server database to use SQL Server database as the storage for Hangfire Implementation. Finally, I have modified the code in the SendMail action method in EmailController as shown below to demonstrate the execution pattern for each type of background job available in Hangfire in ASP.NET Core. Dashboard supports modifications too. Scheduled jobs enqueued but not processing question queues aFamilyOfTrees March 8, 2021, 5:14pm #1 I have a job that I scheduled to run yesterday and when I check the queue today I see that it is enqueued but not processing. There are a lot of reasons for blocking, and it's very important to avoid using a single GitHub issue for them. How to get List of all Hangfire Jobs using JobStorage in C#? Wondering if something is up with that so I disabled it. However it is better to control the exit points in your methods by using cancellation tokens. Each filter can operate on and change the job's behavior at that point in the pipeline. Implement Hangfire in ASP.NET Core i.e. Can you take a look in the hangfire dashboard to see if there is anything useful? We have to restart the service.. IIS The fix for this will be in our nightly build tonight. Restarting does not work, we must do a stop then start. What is the (tax) aquisition date for stocks aquired via merger? Hangfire Server part is responsible for background job processing. making the function static, does the job for me. Any support would be highly appreciated @odinserj. However I have updated my post. so you can see what I have done Just to rule things out, and because I have read that polling too frequently can cause issues, can you remove your custom polling and see if it executes? In this article, we learn about background jobs, Hangfire in ASP.NET Core & the implementation of different types of jobs available in Hangfire in ASP.NET Core. [image: image] https://user-images.githubusercontent.com/3822009/83284813-7b117a80-a19a-11ea-92f5-b4ab35b5fe81.png You are receiving this because you commented. Continuations are executed when its parent job has been finished. On Fri, 29 May 2020, 22:22 George Universe, ***@***. This processing pipeline has a number of stages that can be intercepted using job filters. Checked hangfire before rebooting and I have almost 3k jobs sitting enqueued. some internal construction detail of the EmailService type. Ive checked the db and I am able to connect to it and the Hangfire.Job table does show my job. Are you redis Or sql?? That is what tells Hangfire that it needs to do the executing - otherwise you're simply queuing as it expects something else to do the execution. Using a Counter to Select Range, Delete, and Shift Row Up, Strange fan/light switch wiring - what in the world am I looking at. Jobs got enqueued but never picked up to be processed. Can a county without an HOA or Covenants stop people from storing campers or building sheds? We have not restarted the api server at all and when viewing the hangfire dashboard a heart beat is shown as expected. Microservices It happens randomly. Polymorphism It's still happening for us, with Hangfire version 1.7.25 using redis storage with Hangfire Pro 2.8.10. @NeenuSunil, please provide any logs with exception stack traces, dashboard screenshots, configuration logic and output of the STDump to diagnose what happens. Sign in In the startup.cs I have written this: UPDATE 2 I have read the docs but its really unclear what to do to combat this. Seems like heartbeat is fine and jobs are enqueued but the processing part is not working. These jobs are executed immediately after the linked previous job has been successfully executed. The only security provided by Hangfire in ASP.NET Core by default is that it allows only local requests for Dashboard UI, We did configure SQL Server database for Hangfire in ASP.NET Core as part of the Hangfire configuration in the startup (AddHangfire). We had almost 3200 jobs enqueued overnight. Find centralized, trusted content and collaborate around the technologies you use most. In order for Hangfire dashboard to display the job being enqueued the enqueue call needs to be _hangfireServer.Enqueue<ISomeWorkerInterface> (x => x.Process (someIdentifier)); as opposed to _hangfireServer.Enqueue ( () => _someWorkerInterface.Process (someIdentifier)); The following versions are installed: Hangfire.Core 1.7.6 Then all of a sudden jobs are en-queued and not picked up for processing. Hangfire's UI is itself protected by an API key (a GUID which you define) and accessible from /hangfire if you have the API key. I do get errors in the console from time to time where git sync fails, but when I check in the settings the most recent git sync looks correct for the last time I saved something. Here are for example two enqueued jobs in the dashboard: and I can see them in the Redis storage with the proper *queue key: and here is an example, that the jobs get processed as soon as I click on the Requeue button (at this point both pending jobs were processed, although I clicked Requeue on just one of the pending one): Will send you next, during the day, the configuration code related to Hangfire. Well occasionally send you account related emails. IIS 8.5 Here's the output of running stdump on the server process: @sethsteenken, thanks for the stack trace. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Retries Jobs list which have been retried due to some failure during previous execution. I ran into this issue after deploying against a SQL Server instance with permissions locked down. Enqueued jobs are handled by a dedicated pool of worker threads. The rest are 0s, Looks like all of the processing jobs for the the git sync. Job storage access is fully abstracted and you can implement the support for your favorite storage. Probably the same issue with SQL Server here. An easy way to perform background processing in .NET and .NET Core applications. I see this over and over in the logs as well, not sure if it related? Using PostgreSQL, but before Memory and both have the same issues, I wouldn't say its DB related. Hangfire Ace packages are available under paid subscriptions. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. When I was running the app with IIS Express, the queued jobs successfully get processed after queued. .NET Core This one in particular caught my eye because it's apparently fixing some deadlocks. App has been upgraded to core 3.1. Hangfire An easy way to perform background processing in .NET and .NET Core applications. I had saved the logs back then, when I knew for sure that the process had stalled in the same hour. Is it possible to run the following command (where default is the queue name and hangfire: is the configured prefix)? you can configure multiple (parent-continuation job) background jobs that can be linked together based on completion of a parent job. You specify in the initial diagram that there are 2 asp web applications, one to queue jobs and one to fetch and consume jobs, but in the implementation its all in one web app? How would I go about explaining the science of a world where everything is made of fabrics and craft supplies? Do peer-reviewers ignore details in complicated mathematical computations and theorems? This is where background jobs come into the picture its like running the remaining of the activities in the background like on a different thread so that the main thread has been released for a user to perform other activities. It looks like background server is not firing the job at all. I don't know why' maybe you are running an older state of the file? Jobs get stuck in "Enqueued" state after some days of server uptime. Background method calls and their arguments are serialized and may overcome the process boundaries. To learn more, see our tips on writing great answers. Now register this service in the application dependency injection container so that it can be injected into the controller. I'll try it whenever I'll have time to. rev2023.1.18.43176. Now lets run the code to check execution pattern of different type of jobs available in Hangfire in ASP.NET Core. Already on GitHub? Granting the following to the database user the web application was connecting with addressed the issue: Found an answerI posted to the same topic I created in Hangfire forum: http://discuss.hangfire.io/t/hangfire-does-not-process-jobs-when-deployed-in-iis-7-5/386/2. At first I had some access problems but when adding the ApplicationPoolIdentity (IIS APPPOOL\ {application pool name}) with full access that was solved. Hangfire Job Is Enqueued Details About Hangfire Job Is Enqueued As our standard of living keeps evaluating, so hangfire job is enqueued needs often increase. Should I re-enable the git sync before getting a memory dump? Hangfire can process multiple queues. These can be daily or weekly jobs to generate data dumps or reports. Batch is a group of background jobs that is created atomically and considered as a single entity. privacy statement. I checked the client that enqueues the jobs now and figured it out where the problem is: , . schedule background jobs in .NET Core, Create jobs with Hangfire in ASP.NET Core, https://github.com/procodeguide/ProCodeGuide.Samples.Hangfire, Analyze ASP.NET Application Issues with Accuracy, IIS Logs Fields, IIS Logs Location & Analyze IIS Logs Ultimate Guide, Upload File using C# ASP.NET FileUpload Control, Custom Identity User Management in ASP.NET Core Detailed Guide, Broken Access Control in ASP.NET Core OWASP Top 10, Singleton Design Pattern in C# .NET Core Creational Design Pattern, Bookmark these 10 Essential NuGet Libraries for ASP.NET Core, Select Create a new project on the initial screen as shown below. But in background, all the configured job types should get created and triggered as per their execution pattern. It seems to me that the git sync jobs are hanging for some reason and then hangfire is not starting new jobs. If I try to manually run a job in this state it sits in the Queued status and never runs. Hangfire documentation is licensed under the, // Add the processing server as IHostedService, Making ASP.NET Application Always Running, Sending Mail in Background with ASP.NET MVC. But there's a problem. This may be caused by user code that throws the ThreadAbortException or by something more serious. Cloud Storage Hangfire can process multiple queues. Hi. For ASP.NET Core, define the queues array with services.AddHangfireServer in Startup.cs: Please use Hangfire Forum for long questions or questions with source code. Schedule Method (Expression < Action >, TimeSpan) Creates a new background job based on a specified static method call expression and schedules it to be enqueued after a given delay. No Windows Service or separate process required. Now that we have integrated Hangfire in ASP.NET Core application lets run the application & check the dashboard for Hangfire. Easy to set up, easy to use. I am thinking, over the weekend traffic almost comes to a stand still and perhaps pool recycles and hangfire cant recover? Hangfire Ace is a set of extension packages that bring advanced features for background job processing in business applications. Fire-and-forget jobs are executed only once and almost immediately after creation. If possible, could you please take a memory dump of the process and upload it here? Learn Python I was using 2005. Never email yourself a file again! @odinserj I had a brief chat with the lads over on the hangfire postgres repo and they raised the issue may lie with hangfire itself misbehaving with a website hosted in azure that isn't receiving any traffic fir a set period of time. To demonstrate different types of jobs in Hangfire in ASP.NET Core first lets create a dummy service i.e. I have faced the above issue with Hangfire.Core 1.6 as well as 1.7.6 but i have noticed that my prefix names have hypens. I have for sure to investigate more, no time now so I revert to the old version of hangfire (1.17.12) to see if it solve the issue. The choice of queue is not stamped on the job, but stored as a property inside the state object representing the Enqueued state. Any help would be greatly appreciated. the call to HostingEnvironment.MapPath(), or. Hangfire documentation is licensed under the. Jobs All the jobs stored in the database will be visible here under different status as Scheduled, Enqueued, Processing, Succeeded, Failed, Deleted & Awaiting. If you want to prioritize your jobs, or split the processing across your servers (some processes for the archive queue, others for the images queue, etc), you can tell Hangfire about your decisions. While Hangfire comes with a lot of great features , Posted: (5 days ago) Another core feature of Hangfire's architecture is the chain-of-responsibility pipeline. Can I change which outlet on a circuit has the GFCI reset switch? You can use Hangfire on different machines to get more processing power with no configuration synchronization is performed automatically. You can safely restart your application and use Hangfire with ASP.NET without worrying about application pool recycles. The frequency of these jobs can be configured which can vary from milliseconds to years. The Server does not depend on ASP.NET and can be started anywhere, from a console application to Microsoft Azure Worker Role. Packages Hangfire.Throttling Limited storage support Provides static methods for creating fire-and-forget, delayed jobs and continuations as well as re-queue and delete existing background jobs. 'I cannot debug the NotifyRegistration method. Problem After 10 days of leaving our webserver running (no restarts), enqueued jobs no longer process. It might not prevent the git sync from hanging but it will fix the issue where the jobs stop running and you have like 40 git syncs happening. All I am also having same problem, Jobs are en-queued but it's not processing, Using following version 5 stars. We used to be on Windows App Service and no issues. You are free to throw unhandled exceptions or terminate your application background jobs will be re-tried automatically. Recurring jobs fire many times on the specified CRON schedule. There might be some web requests which take lots of time for execution like generating a report on successful insertion or sending email/SMS as acknowledgment for the transaction completion. How Intuit improves security, latency, and development velocity with a Site Maintenance - Friday, January 20, 2023 02:00 - 05:00 UTC (Thursday, Jan Were bringing advertisements for technology courses to Stack Overflow, Queuing BankgroundJob with Hangfire within an async action in ASP.NET MVC freeze the application, Roles Create New DataBase When I Add a user to a role in MVC 5. To add DummyEmailService to the container add the following line of code in Method ConfigureServices in Startup.cs file. Background checks for UK/US government research jobs, and mental health difficulties. Hangfire.Throttling provides the following primitives, all of them are implemented as regular state changing filters that run when a worker is starting or completing a background job. How many grandchildren does Joe Biden have? Restarting the windows service (which runs the Hangfire service) fixes the issue for a while, even a couple days. Hangfire version: 1.7.11. After that enter name for the project\solution as ProCodeGuide.Samples.Hangfire, provide a path of the project where it will be saved on the local disk & click on create button as shown below, 5. Have attached screen shots of server and jobs. Add interface Services/IEmailService.cs that has function SendEmail which will be implemented in dummy service DummyEmailService to write to console that email has been sent. - Hangfire Discussion Enqueued jobs won't start processing bug? Try to collect some logging messages they should show the exception and its stack trace. Christian Science Monitor: a socially acceptable source among conservative Christians? Finally select .NET Core Framework as ASP.NET Core 5.0, application type as ASP.NET Core Web API, Enable OpenAPI Support for testing purpose & click on Create button as shown below, This will create the project and load the same in Visual Studio 2019 as shown in below screenshot. The Server does not depend on ASP.NET and can be started anywhere, from a console application to Microsoft Azure Worker Role. Is it realistic for an actor to act in four movies in six months? Stack trace from the original message clearly shows the problem relates to Npgsql and a closed connection. Christian Science Monitor: a socially acceptable source among conservative Christians? I'm having this issue, some jobs are not processing and have days in the Azure Storage I am using Postal, so EmailService is not my implementation. The only workaround for it that I've found is to completely restart the dotnet process every 8 hours or so, which is a real PITA. I am running Hangfire 1.7.19 and have my SqlServerStorageOptions set up as described here. Would you like me try and collect any additional logs by some means? This can be used for jobs that can be run outside the peak load window. services.AddHangfire(config => { config.UseStorage( new MySqlStorage("***connection string***", new MySqlStorageOptions { PrepareSchemaIfNecessary = false })); }); app.UseHangfireServer( new BackgroundJobServerOptions { WorkerCount = 1 }); { "@t": "2021-03-29T12:56:43.0892847Z", "@mt": "{State:l}", "@r": [ "Error occurred during execution of 'Worker #8a90b7c0' process. IIS Logs SELECT, INSERT, UPDATE, DELETE on the Hangfire schema in the application database. On Fri, 29 May 2020, 22:22 George Universe, @. Single API for all applications is exposed through the BackgroundJobServer class: Call the Dispose method whenever possible to have graceful shutdown features working. Instantly get notified about my new articles in your mailbox by subscribing via email. The dashboard even allows you to manually run the jobs visible in the dashboard. I will be using Visual Studio 2019 community edition along with .NET Core 5 to create a new Web API project, 3. Continuations will be enqueued immediately. Dashboard (on separate web app) says the Hangfire server is live and connected and good heartbeat, etc. 1.Updated Hangfire to 1.7.3 When using Hangfire.Pro.Redis package, array index is important and queues with a lower index will be processed first. July 19, 2021. Fork the project and make contributions on GitHub. .NET Core Logging Which Hangfire Version are you using? Hangfire Quick Start BackgroundJob.Enqueue ( () => Console.WriteLine ("Fire-and-forget")); Hangfire HostingEnvironment.QueueBackgroundWorkItem ( here) void If you are using redis, is it cluster mode enabled?? Backed by persistent storage. Hangfire.SqlServer 1.7.7, The problem is only when I deploy it on azure app service linux, not on my local machine. Powered by Discourse, best viewed with JavaScript enabled, Scheduled jobs enqueued but not processing. .NET 6 How many grandchildren does Joe Biden have? I identified an issue that would cause the hangfire jobs to hang like this if one of the git syncs hangs. Next select ASP.NET Core Web Application from the displayed project types template list and click on the Next button as shown in the screenshot below, 4. Though the user has been unblocked before the completion of long-running activities completion of these activities is also important as those are part of request business logic. If you dont want to process background jobs in a specific application instance, just dont create an instance of the BackgroundJobServer class. Monolithic v/s Microservices No Windows Service or separate process required. If it returns an empty list then it's either key name is misspelled or background job identifier is not in the queue. Sergey, I currently have the same problem, although Hangfire user to work succressfully for 2 years and without any problems. Backed by persistent storage. Strange fan/light switch wiring - what in the world am I looking at. If you want to prioritize your jobs, or split the processing across your servers (some processes for the archive queue, others for the images queue, etc), you can tell Hangfire about your decisions. Ps: when hangfire was blocked dashboard works correctly but shows all jobs queued, server count is corrected also, and no running job. It is worth noting the server we stop/start after 10 days is not the server that actually calls BackgroundProcess.Enqueue, please see details below along with a simple diagram of what is going on. You don't need to perform manual storage clean-up Hangfire keeps it as clean as possible and removes old records automatically. EXECUTE on sp_getapplock and sp_releaseapplock in the master database. Here is the quick & short video to implement Hangfire in ASP.NET Core. With a maximum of 20. Running on .net core 3.0 When a background job is ready to be enqueued, it is simply moved from ScheduledState to the EnqueuedState by using IBackgroundJobStateChanger. Well occasionally send you account related emails. We use Hangfire at Assetbots to manage and coordinate all our background processing and event handling. Are you redis Or sql?? You signed in with another tab or window. "State": "Error occurred during execution of 'Worker #8a90b7c0' process. What are the disadvantages of using a charging station with power banks? I was using 2005. The registration works properly, but the job I run remain enqueued and I not receive any email. They will now time out and be released back to the pool so other jobs can continue. The UI was still working, the jobs were just stuck in the enqueued state. Enqueued jobs not running, 10 days after server restart, https://app.lucidchart.com/invitations/accept/0d6b7469-6243-4fa5-9174-f573cb6ae3e9, new jobs are placed on the queue but not processed after 9/10 days (2 days of no activity), 1 app service hosted in Azure exposes a front end to the client, 1 app service hosted in Azure exposes an api which when triggered queues a background job, this server does the enqueuing of the jobs. We will add calls to the extension method AddHangfire & AddHangfireServer on the IServiceCollection in ConfigureServices method in class Startup. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. These jobs are created with a delay and are executed when the configured delay time has been elapsed. @minajevs this can happen due to background jobs themselves. Does the email get sent if you move the call out of the hangfire job? I don't see any worker threads, and without the logs it's hard to say what happened. wait time is configurable and is queued upon creation. https://discuss.hangfire.io/t/jobs-in-enqueue-state-most-never-run/2367/4. Now lets add a new API controller i.e. After 10 days of leaving our webserver running(no restarts), enqueued jobs no longer process. After purchase, you receive binaries, access to the private NuGet feed and private repository on GitHub. As the name suggests these jobs are executed after some delay. Now after navigating to URL /Hangfire you should be able to see the dashboard for Hangfire in ASP.NET Core as shown below. Debug ASP.NET Errors Supported database is 2008R2 and later: http://docs.hangfire.io/en/latest/configuration/using-sql-server.html, The method NotifyRegistration must be static: ---> MySqlConnector.MySqlException (0x80004005): The Command Timeout expired before the operation completed.\n at MySqlConnector.Protocol.Serialization.BufferedByteReader.ReadBytesAsync(IByteHandler byteHandler, ArraySegment1 buffer, Int32 totalBytesToRead, IOBehavior ioBehavior) in //src/MySqlConnector/Protocol/Serialization/BufferedByteReader.cs:line 36\n at MySqlConnector.Protocol.Serialization.ProtocolUtility.ReadPacketAsync(BufferedByteReader bufferedByteReader, IByteHandler byteHandler, Func1 getNextSequenceNumber, ProtocolErrorBehavior protocolErrorBehavior, IOBehavior ioBehavior) in /_/src/MySqlConnector/Protocol/Serialization/ProtocolUtility.cs:line 408\n at MySqlConnector.Protocol.Serialization.ProtocolUtility.DoReadPayloadAsync(BufferedByteReader bufferedByteReader, IByteHandler byteHandler, Func1 getNextSequenceNumber, ArraySegmentHolder1 previousPayloads, ProtocolErrorBehavior protocolErrorBehavior, IOBehavior ioBehavior) in /_/src/MySqlConnector/Protocol/Serialization/ProtocolUtility.cs:line 466\n at MySqlConnector.Protocol.Serialization.StandardPayloadHandler.ReadPayloadAsync(ArraySegmentHolder1 cache, ProtocolErrorBehavior protocolErrorBehavior, IOBehavior ioBehavior) in //src/MySqlConnector/Protocol/Serialization/StandardPayloadHandler.cs:line 42\n at MySqlConnector.Core.ServerSession.ReceiveReplyAsync(IOBehavior ioBehavior, CancellationToken cancellationToken) in //src/MySqlConnector/Core/ServerSession.cs:line 765\n--- End of stack trace from previous location where exception was thrown ---\n at MySqlConnector.Core.ServerSession.ReceiveReplyAsyncAwaited(ValueTask1 task) in /_/src/MySqlConnector/Core/ServerSession.cs:line 793\n at MySqlConnector.Core.ResultSet.ReadResultSetHeaderAsync(IOBehavior ioBehavior) in /_/src/MySqlConnector/Core/ResultSet.cs:line 49\n at MySqlConnector.MySqlDataReader.ActivateResultSet() in /_/src/MySqlConnector/MySqlDataReader.cs:line 115\n at MySqlConnector.MySqlDataReader.CreateAsync(CommandListPosition commandListPosition, ICommandPayloadCreator payloadCreator, IDictionary2 cachedProcedures, IMySqlCommand command, CommandBehavior behavior, IOBehavior ioBehavior, CancellationToken cancellationToken) in //src/MySqlConnector/MySqlDataReader.cs:line 422\n at MySqlConnector.Core.CommandExecutor.ExecuteReaderAsync(IReadOnlyList1 commands, ICommandPayloadCreator payloadCreator, CommandBehavior behavior, IOBehavior ioBehavior, CancellationToken cancellationToken) in /_/src/MySqlConnector/Core/CommandExecutor.cs:line 61\n at MySqlConnector.MySqlCommand.ExecuteNonQueryAsync(IOBehavior ioBehavior, CancellationToken cancellationToken) in /_/src/MySqlConnector/MySqlCommand.cs:line 263\n at MySqlConnector.MySqlCommand.ExecuteNonQuery() in /_/src/MySqlConnector/MySqlCommand.cs:line 100\n at Dapper.SqlMapper.ExecuteCommand(IDbConnection cnn, CommandDefinition& command, Action2 paramReader) in C:\projects\dapper\Dapper\SqlMapper.cs:line 2827\n at Dapper.SqlMapper.ExecuteImpl(IDbConnection cnn, CommandDefinition& command) in C:\projects\dapper\Dapper\SqlMapper.cs:line 570\n at Hangfire.MySql.JobQueue.MySqlJobQueue.Dequeue(String[] queues, CancellationToken cancellationToken)\n at Hangfire.MySql.MySqlStorageConnection.FetchNextJob(String[] queues, CancellationToken cancellationToken)\n at Hangfire.Server.Worker.Execute(BackgroundProcessContext context)\n at Hangfire.Server.AutomaticRetryProcess.Execute(BackgroundProcessContext context)",

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