kestrel | simple , distributed message queue system

 by   twitter-archive Scala Version: org=net.lag,name=kestrel,version=2.4.1 License: Non-SPDX

kandi X-RAY | kestrel Summary

kandi X-RAY | kestrel Summary

kestrel is a Scala library. kestrel has no bugs, it has no vulnerabilities and it has medium support. However kestrel has a Non-SPDX License. You can download it from GitHub.

Kestrel is based on Blaine Cook’s "starling" simple, distributed message queue, with added features and bulletproofing, as well as the scalability offered by actors and the JVM. Each server handles a set of reliable, ordered message queues. When you put a cluster of these servers together, with no cross communication, and pick a server at random whenever you do a set or get, you end up with a reliable, loosely ordered message queue.

            kandi-support Support

              kestrel has a medium active ecosystem.
              It has 2783 star(s) with 325 fork(s). There are 246 watchers for this library.
              It had no major release in the last 6 months.
              There are 24 open issues and 83 have been closed. On average issues are closed in 283 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of kestrel is org=net.lag,name=kestrel,version=2.4.1

            kandi-Quality Quality

              kestrel has 0 bugs and 0 code smells.

            kandi-Security Security

              kestrel has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              kestrel code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              kestrel has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              kestrel releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.
              It has 10567 lines of code, 567 functions and 60 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            kestrel Key Features

            No Key Features are available at this moment for kestrel.

            kestrel Examples and Code Snippets

            No Code Snippets are available at this moment for kestrel.

            Community Discussions


            Configure ListenOptions.UseHttps with .pem file rather than .pfx in ASP.NET 6.0 app
            Asked 2022-Mar-22 at 05:39

            I have an ASP.NET web app on ubuntu 20.04, and I am using SSL certificate in .pfx format, which works fine. However, I want to learn how to do the same with the .pem file.

            I know it can be done in appsettings.json like this and through the HttpsFromPem key:



            Answered 2022-Mar-22 at 04:43

            You can just load it in using



            Do browsers block POST requests if POST isn’t in the Access-Control-Allow-Methods value of the preflight OPTIONS response?
            Asked 2022-Mar-21 at 11:28

            I think I understand CORS pretty well, but I'm still a bit puzzled about the browser's behavior when it comes to the preflight requests.

            Let's say the browser issues this preflight request:



            Answered 2022-Mar-21 at 11:28

            No, the browser doesn't require the server to explicitly allow the POST method, because the latter, as a so-called CORS-safelisted method, gets a free pass.

            More details What the spec says

            The answer, as always, lies in the Fetch standard (section 4.8), which specifies how CORS works:

            1. Let methods be the result of extracting header list values given Access-Control-Allow-Methods and response’s header list.

            And further down:

            1. If request’s method is not in methods, request’s method is not a CORS-safelisted method, and request’s credentials mode is "include" or methods does not contain *, then return a network error.

            (my emphasis)

            What is a CORS-safelisted method? The term is defined in section 2.2.1:

            A CORS-safelisted method is a method that is GET, HEAD, or POST.


            If the method of the CORS request is one of GET, HEAD, or POST, the browser doesn't require the server to explicitly list that method in the Access-Control-Allow-Methods header for CORS preflight to succeed.


            I've found Jake Archibald's CORS playground useful for testing my (mis)understanding of CORS. Running this particular instance in your browser may convince you that the POST method doesn't need to be explicitly allowed for CORS preflight to succeed.



            Report Server authentication in .net core 2.1 linux container
            Asked 2022-Feb-02 at 14:28

            I am migrating a .net core 2.1 app from windows server to linux container. It uses SQL Server 2008 report server.

            The old app version is running on IIS (windows server), application pool with identity configured (active directory user). The new app version is running on an alpine container using kestrel .net core server standalone, no identity configured.

            When the app tries to reach SQL Server 2008 report server there is an error: LoadReport error: One or more errors occured. (NTLM authentication is not possible with default credentials on this platform.)

            How can I configure credentials (username and password)(same one set in my old application pool) in my new app based on linux container?

            Part of my appsettings.json:



            Answered 2022-Feb-02 at 14:28

            Microsoft don't provide support for .NET Core/.NET 5, since the SSRS library is intricately linked with WebForms, which are no longer supported.

            Refer this link

            Usually, we use NetworkCredential option to pass username and password while in ASP.NET MVC.

            You can able to supply report server's username and password to ReportSettings.Credential as shown in below.




            Pandas .agg() convert to list but skip nans
            Asked 2022-Jan-10 at 10:16

            How do I consolidate/reduce a DataFrame so that it merges rows by custom column 'id' and puts values into a list if they are not Nan. So far I came up with this but it doesn't remove Nans:



            Answered 2022-Jan-10 at 10:16

            Use Series.dropna for remove NaNs and Nones:



            Understanding ASP.NET Core with Apache
            Asked 2022-Jan-09 at 07:22

            In IIS we had an aspnet_isapi extension that handles the request, it then spawns a process w3wp.exe, w3wp.exe then loads and starts the CLR and then CLR does its job.

            Now, Kestrel is configured inside the Main() method, so first the Main() should execute, so who starts the Core CLR ? is it IIS for windows and Apache for Linux? Do IIS and Apache know how to search and start Core CLR?

            What I know is, when a .NET application is executed at that time the control will go to the operating system, the OS creates a process to load CLR.

            The program used by the operating system for loading CLR is called runtime host, which are different depending upon the type of application that is desktop or web-based application i.e.

            The runtime host for desktop applications is an API function called CorbinToRuntime.

            The runtime host for web-based applications is the ASP.NET worker process (aspnet-wp.exe).

            So, how is it possible that first the Main() method will execute and then the CLR, i am not able to digest it, please help.



            Answered 2021-Sep-13 at 07:17

            Forget about everything you know about IIS.

            For Apache or nginx, just run your ASP.NET Core console application (who initializes Core CLR) at a local port (http://localhost:5000 for example), and then set up reverse proxy rules to forward external traffic to that port.

            That's roughly what Microsoft documented in this article

            Such reverse proxy setup is common, as other web stacks (Node.js, Python, Go) are using the same approach.

            Because of this specific setup, Linux launches your .NET Core console app by analyzing the COFF envelope (of dotnet executable, or your own executable for self contained deployment) to locate the native entry (not your managed Main).

            Apache/nginx is not involved in anyway.

            Calling into this entry triggers CoreCLR initialization, and in turn your managed assemblies are loaded and managed Main is called.

            You might find articles like this helpful.



            NET5 JWT Bearer Authentication not recognizing SSL certificate
            Asked 2021-Dec-12 at 15:34

            I have a .NET 5 WebApi using Grpc and an IdentityServer4 running behind a YARP reverse proxy. The reverse proxy is using a valid Let's Encrypt certificate and is routing requests to the other two which are listening on localhost:port and using a self signed certificate. They are running on Linux Mint 20.1 and I created the self signed certificate with OpenSSL and added it to /usr/local/share/ca-certificates/extra and ran update-ca-certificates to update the certificate store.

            Everything runs fine, YARP recognizes the sefl signed certificate for routing the request but requests to the WebApi that require authorization throw this exception:



            Answered 2021-Dec-12 at 15:34

            I managed to track down the cause and fix it.

            The Cause
            1. Microsoft.AspNetCore.Authentication.JwtBearer actually makes not 1 but 2 calls to IdentityServer4: one to /.well-known/openid-configuration to get the configuration and then a call to the endpoint returned in jwks_uriof the previous response. The first call was to a localhost:port endpoint using the self signed certificate and working normally but the 2nd was to a realdomain endpoint using the Let's Encrypt certificate and failing with the error in the OP.
            2. The Let's Encrypt certificate had an expired certificate in the chain: it was using DST Root CA X3 instead of ISRG Root X1 (more info here:
            Fix for calls using different domains Option 1 - fixing it in IdentityServer4

            This can be achieved by changing the IdentityServer4 origin in Startup.cs:



            Single File ASP.NET Core 5 web app does not load static resources
            Asked 2021-Dec-01 at 17:09

            I'm trying to create a single file core 5 web app. Goal is to have a single .exe file, run the Kestrel server by executing this exe file and load the page in the browser.

            I created an ASP.NET Core 5 template app in VS 2019. Then using cli I run this command:



            Answered 2021-Nov-29 at 21:46

            I tried to reproduce your problem on new asp net core empty project and it works fine.

            Perhaps Startup is missing some configuration.

            Here's what I did.




            Configuring Kestrel Server Options in .NET 6 Startup
            Asked 2021-Nov-09 at 22:04

            I am migrating a WebApi from .net5 to .net6. It's going fairly well, but have run into the problem of how to configure Kestrel during startup. The following code is from the Main method of the Program.cs file:



            Answered 2021-Nov-09 at 20:10

            The migration guide's code examples cover that. You should use UseKestrel on the builder's WebHost:



            Can't connect from the Docker container with ASP.NET Core to SQL Server container
            Asked 2021-Oct-31 at 03:58

            I have a container deploying a WEB API in ASP.NET Core trying to connect to the SQL Server database. I am running Windows 10 with Docker Desktop.

            I can successfully connect to the Docker container with SQL Server from SQL Server Management Studio and my ASP.NET Core app (without container).

            But when I run my ASP.NET Core inside the container, I've got an error:



            Answered 2021-Oct-30 at 10:33

            Sorry, It was my fail:(
            I just forgot that docker-compose up -d command doesn't rebuild Docker images.
            I removed all images, and run the command again.
            With the configurations above it works fine for me!



            Could not load file or assembly Newtonsoft.Json when running app from the dotnet publish output folder
            Asked 2021-Oct-28 at 10:07

            I am finding a problem with Newtonsoft.Json library throwing a



            Answered 2021-Oct-01 at 16:29

            Just use the version that MassTransit depends upon, which is much earlier than v13. Upgrading past that without the proper assembly redirects is likely causing your issue.


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install kestrel

            You can download it from GitHub.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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