Skip to main content

Windows Azure announcement: Per Minute Billing and No Charge for Stopped VMs

I think the Windows Azure team never sleeps because they keep releasing new features at an incredible pace.

Last week Scott Guthrie announced some great enhancements to Windows Azure:

  • Dev/Test in the Cloud: MSDN Use Rights, Unbeatable MSDN Discount Rates, MSDN Monetary Credits
  • BizTalk Services: Great new service for Windows Azure that enables EDI and EAI integration in the cloud
  • Per-Minute Billing and No Charge for Stopped VMs: Now only get charged for the exact minutes of compute you use, no compute charges for stopped VMs
  • SSL Support with Web Sites: Support for both IP Address and SNI based SSL bindings on custom web-site domains
  • Active Directory: Updated directory sync utility, ability to manage Office 365 directory tenants from Windows Azure Management Portal
  • Free Trial: More flexible Free Trial offer

The one feature I liked the most(and my credit card will agree) is the Per Minute Billing and No Charge for Stopped VM's.  Before when you stopped a VM(without deleting it), Microsoft continued to bill you for the VM. With this update, when you stop a VM you are  longer charge you any compute time for it while it is stopped. And all deployment data and configuration is safely stored.

The other one is that the pricing model changed from per-hour to per-minute. Before when you ran a VM for 6 minutes, you would still be charged for a full hour of usage.  With the new pricing model, you only pay for the actual 6 minutes of compute usage.

Keep going guys!

Popular posts from this blog

Podman– Command execution failed with exit code 125

After updating WSL on one of the developer machines, Podman failed to work. When we took a look through Podman Desktop, we noticed that Podman had stopped running and returned the following error message: Error: Command execution failed with exit code 125 Here are the steps we tried to fix the issue: We started by running podman info to get some extra details on what could be wrong: >podman info OS: windows/amd64 provider: wsl version: 5.3.1 Cannot connect to Podman. Please verify your connection to the Linux system using `podman system connection list`, or try `podman machine init` and `podman machine start` to manage a new Linux VM Error: unable to connect to Podman socket: failed to connect: dial tcp 127.0.0.1:2655: connectex: No connection could be made because the target machine actively refused it. That makes sense as the podman VM was not running. Let’s check the VM: >podman machine list NAME         ...

Cache stampede: when our cache turned against us

While investigating some performance issues, we ran into an ASP.NET Core API that cached a fairly expensive aggregation query for 60 seconds. Under normal load, that was fine: one request rebuilds the cache, everyone else reads from it. Under peak load, dozens of requests would arrive in that same expiry window, all see a cache miss, and all fire the same expensive query in parallel. The database didn't like that. That was the moment when our caching layer stopped helping and started hurting. A burst of requests comes in at the same time, all miss the cache, and all go hammer the database or the downstream API at once. That's a cache stampede . The cache was supposed to protect our backend, and for a few hundred milliseconds it did the opposite. Why this happens IMemoryCache.GetOrCreate (and its async sibling) looks like it protects you, but it doesn't add any locking on its own. Look at the naive version: public async Task<Report> GetReportAsync(string key) ...

The role of ActivitySource in OpenTelemetry for .NET

While doing some pair programming to integrate OpenTelemetry tracing to a .NET application, we had a discussion on how to use the ActivitySource . It looks simple. You new one up, give it a name, start an activity, done. The discussion started when we added a second ActivitySource with the exact same name in a different class. This made us wonder: "Are we duplicating traces now? Is this a memory leak? Do we need a singleton?" So we decided to dig deeper. This post is what we learned… What ActivitySource actually is ActivitySource is part of System.Diagnostics , not part of the OpenTelemetry NuGet packages. Microsoft built tracing primitives directly into the BCL, and OpenTelemetry's .NET SDK simply listens to them. This is why you can add distributed tracing to a library without taking a dependency on OpenTelemetry at all. An ActivitySource is a factory for Activity objects, and an Activity is .NET's name for what OpenTelemetry calls a span.(don’t ask m...