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November 19th, 2018

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To start with, tran­sient query surges are no longer a prob­lem?

(written by lawrence krubner, however indented passages are often quotes). You can contact lawrence at: lawrence@krubner.com, or follow me on Twitter.

Tim Bray has an interesting article about the future of REST. However, I fail to understand this sentence:

To start with, tran­sient query surges are no longer a prob­lem

Why? The external world can still send unexpected surges of traffic, yes?

Anyway, this is worth reading:

Post-REST: Mes­sag­ing and Event­ing · This ap­proach is all over, and I mean all over, the cloud in­fras­truc­ture that I work on. The idea is you get a re­quest, you val­i­date it, maybe you do some com­pu­ta­tion on it, then you drop it on a queue (or bus, or stream, or what­ev­er you want to call it) and for­get about it, it’s not your prob­lem any more. ¶

The next stage of re­quest han­dling is im­ple­ment­ed by ser­vices that read the queue and ei­ther route an an­swer back to the orig­i­nal re­quester or pass­es it on to an­oth­er ser­vice stage. Now for this to work, the queues in ques­tion have to be fast (which the­se, days, they are), scal­able (which they are), and very, very durable (which they are).

There are a lot of wins here: To start with, tran­sient query surges are no longer a prob­lem. Al­so, once you’ve got a mes­sage stream you can do fan-out and fil­ter­ing and as­sem­bly and sub­set­ting and all sorts of oth­er use­ful stuff, with­out dis­turb­ing the op­er­a­tions of the up­stream mes­sage source.

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"I wish I could go back," said Anna. "I guess I thought it would always be there, and I could go back and learn more when I was older. But now I'm older and it's gone."

"All the great art scenes are like that," said Mariah. "Renoir's career was half over before the term Impressionism caught on. And Fitzgerald and Hemingway had given up on the Left Bank long before the place was overrun by talentless hacks who wanted to imitate the Lost Generation lifestyle. And the Beats had mostly left San Francisco before busloads of visitors started to do tours of the Haight-Ashbury. When Johnny Rotten couldn't work with the Sex Pistols anymore, he left and the London punk scene began to die. Later on, he said he regretted his decision to leave. Everyone thinks they can go away and come back later, but they never can. When Joan Didion and her husband left New York, she quipped that some other couples were staying too late at the party, but that gets it all backward. The party ends whether you want it to or not, and it takes an unusual arrogance to celebrate the end of an era that some people will remember as the best years of their life. Hemingway lived in Paris during his twenties, but he didn't write about his experience in Paris until he was in his sixties. No one ever knows they're part of an art movement; it's something you only see afterward."

"But if we only see it in retrospect, then how can we find the next great art scene?" asked Anna. "What do I look for?"




Also read this true story about a startup I worked at in 2015:




RECENT COMMENTS

1 COMMENT

November 19, 2018
5:13 pm

By Justin McGuire

I think the idea is that a surge in traffic results in more messages on the queue, which can be handled at a normal pace, instead of more work coming straight to the receivers and possibly DDOSing them.

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