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Heroku Blog: Routing Performance Update

blog.heroku.com

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Re: Heroku Blog: Routing Performance Update

#91

Post by jharsman »

neebz wrote: post #78
latchkey wrote: post #49

I'm watching all this debate with great interest. The company I'm consulting for has ~150 dynos, a paid support contract, etc. We're on Cedar... NodeJS latest (which just got upgraded to 0.8.19 after being ignored since October), with Mongo, Rabbit and Redis hosted by third party addon companies. After a ton of H12 errors, they helped us find out some slow points and optimize some things that were relatively slow. On…

150 dynos with Node.js and you are still getting H12 errors? The issue so far reported is that if we ever get multiple requests on a single dyno then we'll have a queuing delay because Rails is essentially single-threaded. But with Node.js I think it would be a fairly large amount of requests on a single dyno I suspect before we get any queuing delays

If your requests are CPU intensive, Node.js won't help since it doesn't support preemption.

And even if you're primarily IO-limited, a single request that consumes too much CPU will cause queuing.

Re: Heroku Blog: Routing Performance Update

#92

Post by j-kidd »

michaelfairley wrote: post #22

There's another large issue with queueing requests on the dyno: when the app restarts, all the requests currently queued up on that dyno get dropped and the client receives a 503.

Sad to know. `httpd -k restart` was available since the beginning of time.

Re: Heroku Blog: Routing Performance Update

#93

Post by Adirael »

antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

If your Ruby code deploys to X you should know X, if it's part of your stack it should be part of your toolbox.

"create software that makes managing Apache, Redis, PostgreSQL" Like Plesk, but better, faster and less resource hungry.

Re: Heroku Blog: Routing Performance Update

#94

Post by ig1 »

antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

The primary bottleneck for most startups isn't money, it's time.

Also for most startups (assuming you're not doing something CPU/bandwidth heavy) the actual cost of hosting is going to be a relatively small part of the budget. If your burn rate is a million dollars, reducing 10k of hosting costs to 1k isn't really worth the effort.

Re: Heroku Blog: Routing Performance Update

#95

Post by fauigerzigerk »

ig1 wrote: post #94
antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

The primary bottleneck for most startups isn't money, it's time. Also for most startups (assuming you're not doing something CPU/bandwidth heavy) the actual cost of hosting is going to be a relatively small part of the budget. If your burn rate is a million dollars, reducing 10k of hosting costs to 1k isn't really worth the effort.

Money can buy time in various forms. I think PaaS is one abstraction level too much to remain flexible and efficient as you grow.

Re: Heroku Blog: Routing Performance Update

#96

Post by raverbashing »

ig1 wrote: post #94
antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

The primary bottleneck for most startups isn't money, it's time. Also for most startups (assuming you're not doing something CPU/bandwidth heavy) the actual cost of hosting is going to be a relatively small part of the budget. If your burn rate is a million dollars, reducing 10k of hosting costs to 1k isn't really worth the effort.

Kind of depends

There's the "two guys in a dorm eating ramen" and there's the YC backed "startup" that already has a couple of hires

So if your monthly budget is of hundreds of dollars, using a VPS instead of Heroku makes sense

Re: Heroku Blog: Routing Performance Update

#97

Post by tijs »

antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

That business model is basically what Cloud66 seems to be doing: https://www.cloud66.com/

Looks pretty decent, would make sense to see something similar for other stacks.

Re: Heroku Blog: Routing Performance Update

#98

Post by sleepyhead »

antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

I run a startup that is hosted on Heroku. I write Ruby code but can't handle operations (I have and can set up servers but if shit hits the fan I wouldn't have a clue. Also I don't have the time). My startup is a one-man show. And you suggest I should grow up? By grow up you mean that I should watch my customers face days of downtime because I don't know how to fix the server, how to secure the server probably, how to scale or have money to hire someone who can?

Of the "ShitHNSays"-stuff I read here this surely takes the cake.

Re: Heroku Blog: Routing Performance Update

#99

Post by oellegaard »

antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

Definitely. This is possible with e.g. puppet already - where I work I've setup puppet modules for provisioning everything automatically for developers, they just need to enter the customer name and whether they need dev, stage and/or live for that customer - the rest is automated. We use http://www.hetzner.de/en/hosting/produktmatrix/rootserver-pr... for hosting - let me just say that I can buy an entire rack with 64 GB ram in each server, for the same cost as one amazon instance :D

Re: Heroku Blog: Routing Performance Update

#100

Post by oellegaard »

oellegaard wrote: post #99
antirez wrote: post #90

Come on startups, you should be technically skilled and able to optimize in order to spend little money . If you sum EC2 and Heroku you are going to pay like 10x what it takes to run the same machines power in a dedicated server, all this because you can't handle the operations? This is absurd IMHO. Also people that want to start a business, there is a huge opportunity here , create software that makes managing Apach…

Definitely. This is possible with e.g. puppet already - where I work I've setup puppet modules for provisioning everything automatically for developers, they just need to enter the customer name and whether they need dev, stage and/or live for that customer - the rest is automated. We use http://www.hetzner.de/en/hosting/produktmatrix/rootserver-pr... for hosting - let me just say that I can buy an entire rack with 6…

We're also looking into Cloud Foundry - basically Open Source Heroku - with support for buildpacks. If the installations gets easy enough, this could be the new thing.
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