Fatal Execution Engine Error when calling a WCF service in IIS

If you like nasty errors, this is one! It means more or less that the .NET framework itself has crashed. I have not seen this kind of errors a lot(luckily). Everytime we called a specific service, we succeeded in crashing the .NET framework. After some investigation, we started to suspect the usage of IEnumerable<T> in one of our services. And finding this MS Connect call confirmed this suspicion.

The fault could be found in the DataContractSerializer class. Microsoft indicated that the DataContractSerializer issue is fixed in .NET 4.0, but there is not a hotfix available for .NET 3.5sp1 at this time.
The workaround they proposed was to place all assemblies that contain types "T" used in contracts that have IEnumerable<T> into the GAC. (In other words, if your contract has IEnumerable<T> elements, then all types T have to be strong-named & in the GAC.)

Why does this work? The bug with DataContractSerializer apparently does not manifest itself when assemblies are loaded as "domain neutral" (shared across all appdomains.) You can force strong-named/GAC'd assemblies to be loaded as "domain neutral" by using the LoaderOptimization attribute. But if you're hosting in IIS, you are automatically getting LoaderOptimization(LoaderOptimization.MultiDomainHost) behavior for your application. If you're not hosting in IIS, this bug doesn't seem to appear at all.

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.

Kubernetes–Limit your environmental impact

Reducing the carbon footprint and CO2 emission of our (cloud) workloads, is a responsibility of all of us. If you are running a Kubernetes cluster, have a look at Kube-Green . kube-green is a simple Kubernetes operator that automatically shuts down (some of) your pods when you don't need them. A single pod produces about 11 Kg CO2eq per year( here the calculation). Reason enough to give it a try! Installing kube-green in your cluster The easiest way to install the operator in your cluster is through kubectl. We first need to install a cert-manager: kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.14.5/cert-manager.yaml Remark: Wait a minute before you continue as it can take some time before the cert-manager is up & running inside your cluster. Now we can install the kube-green operator: kubectl apply -f https://github.com/kube-green/kube-green/releases/latest/download/kube-green.yaml Now in the namespace where we want t

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

The art of simplicity

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