Cloud Design Patterns

https://msdn.microsoft.com/en-us/library/dn600223.aspx

by dnnrly • 10 years ago

163 41 10 years ago

msdn.microsoft.com

talles5• 10 years ago

What CQRS, an index table or simply "retry" (is this even a "pattern"?) has to do with "the cloud"?

Don't get me wrong, I think is a lovely page (bookmarked), but I fail to see how those techniques are necessarily tied to the cloud.

One thing is to put our services in the cloud, another is to put our concepts in it.

hudo• 10 years ago

Similar like they called new Core .net before, "cloud optimized" framework! It doesn't have absolutely nothing to do with cloud, but marketing department needs to push "cloud everything" because Satya said so. Useful and nice list though...

entitycontext2• 10 years ago

Actually, I don't see it as pure marketing fluff to call the new ASP and .NET Core "cloud optimized". Breaking the framework into smaller pay-for-play components to reduce deployment footprint and allowing for xcopy deployment of self-contained binaries without a globally installed .NET runtime really does help enable new scenarios for cloud containers and microservices.

Avalaxy4• 10 years ago

Not necessarily cloud, but a lot of these patterns have to do with asynchronous distributed systems design (for example leader election, all the queueing patterns, sharding, circuit-breaker). CQRS is part of that (eventual consistency, scalability, etc.). Distributed systems are not necessarily tied to the cloud, but it's a very good fit because of the flexibility the cloud offers.

talles5• 10 years ago

There's a lot of people out there doing distributed systems that are hosted "indoors" (Or should I say "on earth"? What's the opposite of "cloud"?). A lot.

Don't you agree that putting "cloud" on the title may be misleading?

ninjakeyboard• 10 years ago

What's going on over at microsoft? They've had a flurry of OSS announcements, a linux-for-switches fork, are posting relevant tech articles etc. This isn't the same microsoft I know. Is there some sort of change in the direction of leadership? I haven't seen any articles about changes in strategy in these directions but am seeing a lot of activity.

pm90• 10 years ago

They are heavily focused on the cloud. They recognized (correctly) that their time of living off revenues of Windows and Office were limited and thus they need to do other things as well. But yes, I am rather surprised at how well they are handling the change :).

72deluxe• 10 years ago

I have the "cloud to my butt" plugin installed. It changes all occurrences of "the cloud" to "my butt".

So you opening sentence made me laugh, thanks!

The announcement of SQL Server for Linux is very interesting; the other year when they released an ODBC driver for Linux I thought it was a significant change but it would be interesting to know how many people actually used it.

Oddly the focus on The Cloud seems to be also matched by the focus on telemetry gathering etc. I will wait to see how it pans out.

outside1234• 10 years ago

Satya is what happened. Microsoft finally has a CEO that gets it.

moron4hire2• 10 years ago

Most of these changes would have had to have gotten started under Balmer. Nadella has only been at the helm for two years. If anything, Nadella has been doubling down on a plan Balmer put into motion.

Avalaxy4• 10 years ago

This article is actually pretty old, I read it months ago. It's not new for Microsoft either, they have/had the Microsoft Patterns & Practices team which develops sample applications, books, websites and libraries to demonstrate various design patterns. This is just one of them.

UK-AL• 10 years ago

Microsoft Patterns & Practices have been doing these sorts of pages for years.

BinaryIdiot• 10 years ago

To be fair Microsoft has always posted relevant tech articles. Even 10 years ago when they were hard core only in their own development bubble they had excellent articles about architecture and scaling, etc. The MSDN has more than just simple documentation and it's always been quite an amazing resource.

an4rchy• 10 years ago

Interesting read. Although, I wasn't a fan of the banner asking for feedback at the bottom. I immediately clicked no without reading what it was (It was something to the extent of 'Is this page helpful?') Although, after dismissing it I wanted to say Yes but after submit I can't change my opinion.

Avalaxy4• 10 years ago

Same here, I did the same. Also: for me all MSDN pages became reeeeaaaally slow ever since I installed Ghostery. I just see a blank page for like 5 seconds before I can see the content. More people with this problem?

liamca2• 10 years ago

[Full disclosure, I work at Microsoft] @an4rchy, I think if you open the page in private mode it will most likely ask you again. If that does not work, feel free to contact me and I can pass on your comments (my email is my HN alias + microsoft.com).

@Avalaxy, it would be great when you click Yes or No, that you also try to add a comment about your issue or why you liked the page. I can not speak for every group, but most groups I know of review the voting and comments for all of their pages really carefully. For example, my team has a weekly discussion on this and what we plan to do to improve the pages. If a page gets a negative vote along with a comment why it poor, it is much easier to improve the page, however, if it simply has a negative vote we have to make guesses as to why it was poor.

babo• 10 years ago

For me that's an annoying experience. It's there at the bottom of each Azure page, pops in immediately, without a chance to digest the information first. Pretty bad UI.

bhvit• 10 years ago

Microsoft contributing to OSS is too much like a US Federal Tax return for my taste.

paulddraper• 10 years ago

Yeah, don't bother collecting tax returns.

(Actually, there's several hundred million in unclaimed returns from 2012 that are about to expire.)

hire_charts• 10 years ago

Cache-Aside is an Antipattern. It forces you to define your caching logic at the application layer, and suddenly the app must care about--and actually implement--your caching strategy. This is very difficult to scale correctly and is a common source of stale data and race conditions.

Better to treat caching as part of your overall database infrastructure. If caching "hot" data is really important for your app, make sure your data layer supports read-through and write-through caching. Or use the "CQRS" Pattern and read from a different source than your writes (allowing your writes to transparently apply whatever underlying caching strategy you need to support the reads).

The MSDN article on CQRS actually has some good advice on combining it with Materialized Views and handling consistency issues. Worth reading if you're interested in solving your caching problems.

novaleaf2• 10 years ago

i just finished implementing a similar pattern: atomic-cache (cache+eventually consistent modifications) and while it's debatable whether the pattern belongs in your "database" layer or "app" layer, you certainly do need this pattern somewhere.

For me, my orm layer is in my app, and my database is just google datastore. I have ideas for eventually writing a db caching layer as you suggest but it's rather a lot more complexity beyond the "get it working and move on" principle.

alooPotato• 10 years ago

Are you using something like Objectify with the google datastore?

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