Improve Heroku experience about rapns

[mihar]

Isn't it working OK, if you run it as a separate process on the Cedar stack?

[thrillcall]

Is it safe to run multiple rapns workers on Heroku? Or will they compete with each other for reads and writes to the notification and feedback tables, or try to send multiple copies of the same notification to Apple?

[ileitch]

Yes it'll likely send multiple notifications. Are you wanting to send to multiple apps?

Sent from my iPhone

On 06/03/2012, at 9:05 PM, [email protected] wrote:

Is it safe to run multiple rapns workers on Heroku? Or will they compete with each other for reads and writes to the notification and feedback tables, or try to send multiple copies of the same notification to Apple?

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Reply to this email directly or view it on GitHub:
#33 (comment)

[thrillcall]

No, a single app, but we just wanted to verify what the behavior would
be if we ran 'heroku scale rapns=2'. Thanks.

Yes it'll likely send multiple notifications. Are you wanting to send to multiple apps?

[ileitch]

ah ok. If you're concerned about throughput, there is a connections config option that controls the number of worker threads. If that isn't enough please open another issue, I've a few ideas for improving throughput.

[EpicDraws]

I believe this is resolved. Been running on Heroku Cedar for some time without issues, also with 2.0.

[ileitch]

Good to hear.

[neebz]

@EpicDraws can you give pointers how were you able to run the rapns daemon on Cedar?

Simply running heroku run bundle exec rapns production doesn't work for me.

[ileitch]

@neebz trying adding this to your Procfile: rapns: bundle exec rapns $RACK_ENV -f

[vlucas]

@EpicDraws Can you describe the web dynos vs worker dynos required to get it working properly? Does it all run okay on the free tier with just a single dyno?

[ileitch]

I've just written a quick Heroku guide: https://github.com/ileitch/rapns/wiki/Heroku

[vlucas]

I get this error every time, and I'm not quite sure what to do. I get this both on Heroku and locally. Any ideas?

vlucasmbp:myrailsproject vlucas$ bundle exec rails console
Loading development environment (Rails 3.2.3)
1.9.2p0 :001 > app = Rapns::App.new
NameError: uninitialized constant Rapns::App

[ileitch]

Have you added rapns to your Gemfile and ran 'bundle install?'

[vlucas]

Yes, of course - and Heroku does that each deploy as well.

[ileitch]

I was under the impression you may be new to Rails.

That is pretty odd then. Does the Rapns constant exist?

Can you check rapns is even in the load path:

irb(main):006:0> $:.any?{|s|s=~/rapns/}
=> true

What version of bundler do you have?

[ileitch]

Oh, and you are using rapns >= 2.0.0 right?

[vlucas]

Ah, looks like it was 1.0.7 - I will upgrade and get back to you. The Rapns constant existed, just not the Rapns::App class/module.

[vlucas]

Okay, looks like that did it. I upgraded to 2.0.1, ran rails g rapns and rake db:migrate again, and then it worked. Thanks for all the hard work on this awesome gem. Cheers.

[Deddiekoel]

For Rapns to work properly you need a Worker dyno on Heroku. But the free tier does not support this. Is there any other way to get Rapns to send out notifications? For instance each time a notification is created?