Designing Events-First Microservices

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Jonas Bonér explores the nature of events, what it means to be event-driven, and how to unleash the power of events and commands by applying an events-first domain-driven design to microservices-based architectures.
This presentation was recorded at QCon New York 2018: bit.ly/2JFHitG
#Microservices #EventDrivenArchitecture #Events #InfoQ #QCon #QConNewYork

Пікірлер: 53

@sidekick3rida 3 жыл бұрын

Thank you for… broadcasting this event ;)

@mohamedfouad1309 Ай бұрын

Wow, great presentation

@rhazen35 4 жыл бұрын

This is a very nice talk, thank you for transmitting the experience!

@rcosta551 4 жыл бұрын

The best talk about I have ever seen

@mikemyers6530 5 жыл бұрын

Great talk, good explanations, good references. Well done!

@aammssaamm 4 жыл бұрын

Managing events is a very powerful approach. Basically development converts into simple configuration.This is related to Actor model by Carl Hewitt.

@420_gunna 4 жыл бұрын

Awesome talk!

@easycollabDotNet 4 жыл бұрын

Really clear and concise talk. Thank you very much for the effort.

@karsynmack2874 3 жыл бұрын

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@Karsyn Mack instablaster =)

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@karsynmack2874 3 жыл бұрын

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@barsvelioglu2276 3 жыл бұрын

Really good!

@aammssaamm 4 жыл бұрын

Brilliant.

@karlitoo40 4 жыл бұрын

Great talk

@rrr00bb1 5 жыл бұрын

there has to be an exception made for deletions: holding on to a request to delete a fact, and then perform the delete when we find the fact to be deleted; knowing the fact can't be recreated (because of unique ids). GDPR is a great example.

@aammssaamm 4 жыл бұрын

Why would you need to delete a fact? You can always ignore it or not even receive it.

@gigiduru125 3 жыл бұрын

There are databases like cockroachdb and faunadb, diatributed databases which offer serializable isolation level and can scale to 100k+ tps. I don't think eventual consistency is something you want to deal with unless you need to scale to 3 continents on the same database shard or somehing.

@LeviRamsey Жыл бұрын

In practice, with both of those DBs, in order to get serializable isolation *and* 100k+ tps you end up having to eliminate transaction contention and doing so is in practice very close to what you would do when designing an eventually consistent CQRS/ES system (Fauna's docs specifically recommend CQRS/ES and thus eventual consistency as the approach to take).

@MarcelToma 5 жыл бұрын

Seems to me that the future of microservices will use a lot of blockchain concepts

@mohamedfouad6492 2 жыл бұрын

OK, whats the difference between event driven services and a multi agent system !?

@joebowbeer 4 жыл бұрын

37:35 event based persistence

@easyappscompany 5 жыл бұрын

(y) manuel silva . best regards

@MarcusNielsen82 5 жыл бұрын

At kzfaq.info/get/bejne/Z86nqLqesrS4ZJc.html Jonas says that the DB table and the event bus both succeed or fail atomically. Can't that be eventually succeeds or fails instead of atomically? If I use google pub/sub and postgresql, can't I log that I'm inserting the event into the DB, and then when I'm done sending it over pub/sub, log that I'm done with the event?

@r448191 4 жыл бұрын

This talk has some glaring errors in trying to strictly define things. For example, a command does not always have a single receiver. You can send a command to n receivers and that's actually extremely useful, for the same reasons he likes events so much.

@alejandrojumilla834 5 жыл бұрын

Distribute for Availability not scalability if you are going to do this understanding this is basic

@PiyushChauhan2011 3 жыл бұрын

I already gave up after "You know part" because I don't know

@meditating010 3 жыл бұрын

I posit that there is only now.

@souravkabiraj5060 4 жыл бұрын

25:14 how to get joined data in a CRUD microservice system? thanks in advance

@f135ta 2 жыл бұрын

You dont - (between services). Your joined data is specific to an individual microservice - its not split across multiple services. Make your microservice return what its concerned with nothing more

@shubitoxX 2 жыл бұрын

CQRS projections?

@chessmaster856 2 жыл бұрын

We have to probably build 1 more database which is equivalent of a MATERIALIZED view and keep syncing it. There is adhoc where criteria but no adhoc join on the fly. We can only query this MATERIALIZED view or what they call CQRS. HUGE data duplication with latency.MATERIALIZED view is dinosaur. call it CQRS.

@f135ta 2 жыл бұрын

I think he was trying to say something useful/valuable - but I really struggled to sift through the waffle.. Points were laboured FAR too much for my liking.. Good try though :-)

@sowenzhang 5 жыл бұрын

generally, Jonas is a good speaker, but this one he didn't seem to be well prepared... I believe he knows all of those stuff because I have seen him talking about those things before, but did he change a set of new slides the night before this talk?

@jcb3883 5 жыл бұрын

Sounded like Jeff Goldblum. 😁 no disrespect. This is a great talk 🤘

@Jack-yx2zh 5 жыл бұрын

Good content but the stuttering is tough to take.

@GabrielGunderson 3 жыл бұрын

Really tough to be you. Sorry you had to hear that while getting access to all of this great free content.

@Jack-yx2zh 3 жыл бұрын

@@GabrielGunderson Content was OK, definitely not great.

@hichemdebbech7894 3 жыл бұрын

Don't focus on the nuns !

@hotplugin 5 жыл бұрын

How about an example project to go with the talk, all these buzz words are just marketing gimmicks.

@Bryanerayner 5 жыл бұрын

Him explaining what he thinks events are is a marketing gimmick?

@justintolentino9222 5 жыл бұрын

Most experts (in any industry) actually have the same problem. They either oversimplify/overexplain the concepts OR they go full-on deep-dive, technical jargon. That's why there's only one Carl Sagan. I actually liked his explanation he didn't spoon-feed his own implementation. He gave a basic, albeit long, introduction to Events in MS Architecture since, as an architect, you can formulate your own implementation and then cross-reference it to how others implementing it.

@aammssaamm 4 жыл бұрын

@@justintolentino9222 Most likely not everybody understands this enough to make their own implementations.

@chessmaster856 2 жыл бұрын

Get put post delete are verbs. So we focus on nouns. Where did ver s come back again? Intent can only be insert update delete select. When events are produced there is no choice but consume event producer is obliged to produce and consumer is obliged yo consume if application has to work. Events are finally crud. What is crud less system. We need some code to look at. How event looks like , how message looks like how rdbms looked. How it looked after events. How much delay happened. How cars looks like how materialized view looks like. I would not present something without examples. This assumes that e eryone knows everything. Like taking to yourself not really for audience.

@chessmaster856 2 жыл бұрын

What can we choose? Not consume message and get out of sync? You have to consume if the application hS to work. Where is the choice

@einfacherkerl3279 4 жыл бұрын

10:04 and and and try to understad the facts. i'll i'll i'll get the commands quite soon. but but but trying to find the co co cozal... between your your your components and the service. and and and and the service

@GabrielGunderson 3 жыл бұрын

Are you a jerk in real life? Or just on KZfaq?

@einfacherkerl3279 3 жыл бұрын

@@GabrielGunderson isn't that what you hear in video?

@GabrielGunderson 3 жыл бұрын

@@einfacherkerl3279 That's exactly what I hear. Would you say that to his face? Have some manners.

@einfacherkerl3279 3 жыл бұрын

@@GabrielGunderson it's not about manners. It's about right person for the right job. He may be arristotle or plato but he isn't suitable for delivering speeches and presentations. That's it.

@shubitoxX 2 жыл бұрын

@@einfacherkerl3279 no he just needs to slow down a bit