Skip to main content

Project Orleans error: System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions

I’m currently experimenting with Orleans and trying to compare it with my experiences using Akka.NET and the Azure Service Fabric actors. So far I like the experience although I encountered some issues in the beginning.

image

I got my first problem when trying the “hello world” of actor model examples; https://dotnet.github.io/orleans/Tutorials/My-First-Orleans-Application.html. After following the tutorial, my Orleans host blew up with the following exception:

ERROR starting Orleans silo name=[MyMachineName] Exception=
Exc level 0: System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at Orleans.Runtime.SocketManager.GetAcceptingSocketForEndpoint(IPEndPoint address)
at Orleans.Runtime.Messaging.IncomingMessageAcceptor..ctor(MessageCenter msgCtr, IPEndPoint here, SocketDirection socketDirection)
at Orleans.Runtime.Messaging.MessageCenter.Initialize(IPEndPoint here, Int32 generation, IMessagingConfiguration config, ISiloPerformanceMetrics metrics)
at Orleans.Runtime.Silo..ctor(String name, SiloType siloType, ClusterConfiguration config, ILocalDataStore keyStore)
at Orleans.Runtime.Silo..ctor(String name, SiloType siloType, ClusterConfiguration config)
at Orleans.Runtime.Host.SiloHost.InitializeOrleansSilo()

Whoops! Not a great start for my first experience with Orleans. A netstat –o brought some insight into the root cause of this issue. The default port used by Orleans(port 22222) was already in use.  I removed the tool(RedGate Ants Profiler in my case) that was using the port and I was good to go!

Popular posts from this blog

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B

Help! I accidently enabled HSTS–on localhost

I ran into an issue after accidently enabling HSTS for a website on localhost. This was not an issue for the original website that was running in IIS and had a certificate configured. But when I tried to run an Angular app a little bit later on http://localhost:4200 the browser redirected me immediately to https://localhost . Whoops! That was not what I wanted in this case. To fix it, you need to go the network settings of your browser, there are available at: chrome://net-internals/#hsts edge://net-internals/#hsts brave://net-internals/#hsts Enter ‘localhost’ in the domain textbox under the Delete domain security policies section and hit Delete . That should do the trick…

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.