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Hi! I just heard about Seq and wanted to test it out before purchasing an API key. I am using .NetCore 3.1 and the Microsoft.Extensions.Logging library for logging to Seq. On my local development machine, it's working great. It's logging everything I need it to and I can see it all locally with Seq(through the browser). So now, I want to put the logging into production on a Windows Server 2016 IIS machine. So I installed Seq, and published. But nothing happens in Seq. I never see any messages or anything at all. I even stopped the website on IIS, deleted everything, and republished the whole site. But I still get no logs. Here is my logging info in startup.cs: public void ConfigureServices(IServiceCollection services) services.AddLogging(loggingBuilder => { loggingBuilder.AddSeq(); }); Here is my logging info for appsettings.json: "Logging": { "LogLevel": { "Default": "Debug", "System": "Information", "Microsoft": "Information" } } And this is what I put in my classes that need logging: using Microsoft.Extensions.Logging; Like I said, everything works fine on my locally development machine. But it never works on my production server on IIS. Is there some extra step I need to do on IIS or anything like that? Thanks!
Posted by Skye about 18 hours ago
It seems like the rendered Seq page is performing relative URLs for its dependencies (such as "styles.css"). This causes problems if we stick the app behind a rev proxy. Reason for this is that the browser is going to chop off the last part of the URL before appending the file to fetch (because its defined as a relative URL in the HTML fetched). If the URL I expose was "http://mydomain/dev/seq" in front of a rev proxy and that URL routes to a backend seq service set up on port 80, the browser will be able to call the initial page just fine. However, all of the dependent files defined within the main page will result in 404 because the last part of the URL route (in this example "/seq") is removed and the relative URL is applied (e.g. "http://mydomain/dev/styles.css") I ran into this problem while trying to set up a Kubernetes Ingress controller to allow a Seq service in Kubernetes to get exposed.
Posted by Mike Koziel 7 days ago
I recently used the HelmChart to install Seq into my hybrid Kubernetes cluster that contains both Linux and Windows nodes. Having run Seq on Windows as a server application (not container) in the past, I wasn't aware at first that the container version of Seq was Linux only. I spent a few hours trying to diagnose Persistent Volume issues when I finally realized that Kubernetes was defaulting the Seq pods onto my Windows nodes and that the image was a linux image. Once I figured that out, I added a nodeselector of "kubernetes.io/os" to target only Linux OS and everything started working. It would be nice to add this nodeselector to the HelmChart by default to save the next person from hours of trying to figure out oddball issues.
Posted by Mike Koziel 9 days ago
I have a message that is interfering with my log. It is spamming a lot and making it hard to trace through the relevant messages. This is in production so changing the code is not an option at the moment. I know that I could use regex, but is there a key word that can be used in the filter to express "Messages that do not contain 'THIS ERRONEOUS INFORMATION IS FLOODING THE LOG'"
Posted by Geoff Martin 9 days ago
I'd like to use Seq Logger with the Julia Programming Language. Currently, I am using a custom solution using the interface defined by https://docs.datalust.co/docs/posting-raw-events. Do you know about similar attempts/projects that are doing this? Thanks!
Posted by wueli 11 days ago
I have installed Seq on a windows machine known only by it's ip address. How do I use a browser to navigate to the console from outside the server? I installed using the default setting of http://localhost:5341/. Say the server's IP is 10.10.10.10. I tried http://10.10.10.10:5341, but nothing comes up.
Posted by John Livermore 14 days ago
Hi I cannot log to Seq when targeting .NET Core 3.1 in any type of application. Below is a sample Console application which illustrates the issue. class Program { static void Main(string[] args) { Log.Logger = new LoggerConfiguration() .WriteTo.Seq("http://localhost:5341") .WriteTo.Console() .AuditTo.Seq("http://localhost:5341") .CreateLogger(); Serilog.Debugging.SelfLog.Enable(Console.Error); Log.Information("Testing from Console"); try { Console.WriteLine("Hello World!"); } finally { Log.CloseAndFlush(); } } } [16:47:37 INF] Testing from Console 2020-10-14T06:47:37.2569282Z Exception while emitting periodic batch from Serilog.Sinks.Seq.SeqSink: Serilog.Debugging.LoggingFailedException: Received failed result NotFound when posting events to Seq at Serilog.Sinks.Seq.SeqSink.EmitBatchAsync(IEnumerable`1 events) at Serilog.Sinks.PeriodicBatching.PeriodicBatchingSink.OnTick() 2020-10-14T06:47:37.2569282Z Caught exception while emitting to sink Serilog.Sinks.Seq.Audit.SeqAuditSink: System.AggregateException: One or more errors occurred. (Received failed result NotFound when posting events to Seq) ---> Serilog.Debugging.LoggingFailedException: Received failed result NotFound when posting events to Seq at Serilog.Sinks.Seq.Audit.SeqAuditSink.EmitAsync(LogEvent logEvent) --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) at System.Threading.Tasks.Task.Wait() at Serilog.Sinks.Seq.Audit.SeqAuditSink.Emit(LogEvent logEvent) at Serilog.Core.Sinks.AggregateSink.Emit(LogEvent logEvent) Unhandled exception. System.AggregateException: Failed to emit a log event. (One or more errors occurred. (Received failed result NotFound when posting events to Seq)) ---> System.AggregateException: One or more errors occurred. (Received failed result NotFound when posting events to Seq) ---> Serilog.Debugging.LoggingFailedException: Received failed result NotFound when posting events to Seq at Serilog.Sinks.Seq.Audit.SeqAuditSink.EmitAsync(LogEvent logEvent) --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) at System.Threading.Tasks.Task.Wait() at Serilog.Sinks.Seq.Audit.SeqAuditSink.Emit(LogEvent logEvent) at Serilog.Core.Sinks.AggregateSink.Emit(LogEvent logEvent) --- End of inner exception stack trace --- at Serilog.Core.Sinks.AggregateSink.Emit(LogEvent logEvent) at Serilog.Core.Logger.Dispatch(LogEvent logEvent) at Serilog.Core.Logger.Write(LogEventLevel level, Exception exception, String messageTemplate, Object[] propertyValues) at Serilog.Core.Logger.Write(LogEventLevel level, String messageTemplate, Object[] propertyValues) at Serilog.Core.Logger.Write(LogEventLevel level, String messageTemplate) at Serilog.Log.Write(LogEventLevel level, String messageTemplate) at Serilog.Log.Information(String messageTemplate) at TestSEQ_VS2019_Console.Program.Main(String[] args) in C:\Code\Mine\Testing\C# Testing\TestSEQ_VS2019_Console\TestSEQ_VS2019_Console\Program.cs:line 20 There seems to be a common issue of "Not Found" error but I cannot glean any further details. My Seq instance is working and from a browser I can navigate to http://localhost:5341 ok I am using v4.2.1113 as I am on Windows 7. The output shows the Console sink works fine (and i've also successfully tried File too). If I change the target framework to .NET Core 2.1 it works fine. Can you point me to any issue or help me know where to possibly find where the issue is? Thanks
Posted by Jason 15 days ago
I'm looking at building some management services and a number of these would benefit significantly from a log host, however these services need to be fronted by a single web page. I'd like to embed a log view with a specific query or set of signals into this web page so I can see specific data sets from our management page. While I could use Seq.NET's API to request and render the data, that requires that I build an entire log view for this purpose. Is there any way to embed only the log view of the Seq.NET website, and if not would it be possible to provide some url parameters that would allow rendering of only the Events listing instead of the entire application?
Posted by James 16 days ago
Hi! We're building out a custom private Seq App for ourselves and are thinking it would be nice if Seq supported App upgrades a little more nicely. Specifically, I'm thinking it might be nice if each instance of the App was bound to a particular version of the App it would allow us to iterate the App a little better. Currently when we deploy a new version of the App - all instances of the App start using the new version immediately.
Posted by Jason Hess 20 days ago
Hi I have set up a api key and set the level to error. And in application I have the following code var levelSwitch = new LoggingLevelSwitch(); Log.Logger = new LoggerConfiguration() .MinimumLevel.ControlledBy(levelSwitch) .Enrich.WithExceptionDetails() .WriteTo.Seq("http://localhost:5341", apiKey: "...", controlLevelSwitch: levelSwitch) .CreateLogger(); Log.Logger.Verbose("TEST!!!"); Even though my api key is set to error,it logs all the information. If I set the level switch as below var levelSwitch = new LoggingLevelSwitch(LogEventLevel.Error); from code, it logs only error. As far I know, it should be driven by API key. API key in seq is not overriding log levels Please help
Posted by Rajiv Kumar 22 days ago
How can it be done? If I read the settings in C:\ProgramData\Seq correctly, I gather the default is for MSSQL? And a follow on question, trying to configure from the client side for usage, and nothing is getting through to the server, or so it seems. I do not even have any SelfLog debugging callbacks happening. So something is falling over well before. It is not an issue with Serilog itself; I can reconfigure it under test for the xUnit ITestOutputHelper, and that works just fine.
Posted by Michael 26 days ago
Hey I'm having some issues trying to restore a backup from a Seq (ver 5.1.3118) running on a windows environment to a docker environment. I'm getting the following, when running my "/bin/seq-server/Seq restore/bin/seq-server/Seq restore" command: Could not restore backup: One or more errors occurred. (Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Version' because the type requires a JSON string value to deserialize correctly. I can't find this value anywhere in Seq.json or any other JSON file to check what's going on with this value. Is windows > docker restore not supported?
Posted by Thomas 29 days ago
Hi, I tried to do something- finally SEQ is not responding. I don't know if the steps described below are related to each other, you tell me please. 1. I made a query of 2 custom fields out of the event (select...) over one full day range. I set the 'limit' to 100000 but it covered only little slices of the day. For more than 100000 I got timeout error. 2. I came to the conclusion it's impossible to get a big amount of results of few fields (why?). So I moved to a basic query and downloaded the json results in order to manipulate it as text. The file downloaded was as big as 5Gb! and took some long minutes to download. But it did the job. But then some strange things occurred: 3. SEQ refused any query for the same date range. The result was an excpetion with a token. Only queries for later dates returned results. 4. Then it was found that for a certain app logging to SEQ, ERROR logs are not found though errors were detected by other tools (Dynatrace). INFO logs appeared, no errors. 5. Finally, today SEQ is not responding. not showing anything, just a white screen. I fear that big file did something bad. Is it possible? Anyway, what should I do now?
Posted by Amitai Shaveh about a month ago
Hi, since the team at datalust is also developing in Rust, I was wondering if there were plans to prove a Seq client for Rust. We are in the process of migrating some of our older services from .Net to Rust, and would like to continue sending our logs to Seq. For now, we are planning on using the HTTP method, but if would be best if we could do it through a logging library like we used to in .Net (Serilog). Thanks!
Posted by Enrique R about a month ago
Hi team, Our application works in a PC and it's oftern taken to the field for a few days where it has no connection to the SEQ server. We were wondering if it's possible for Serilog to save the data locally and upload when it's back in the office? We know about the Serilog.Sinks.File, but the point is to get the data back on the SEQ server. Thanks. Alex
Posted by Alex about a month ago