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yup daemon

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Status Dependency Status

This is the small daemon to forward HTTP requests when response is known or unimportant.

When a http request is arrived the yup daemon (yupd), it answers 200 OK (customizable). Then the yupd forwards the http request to the specified host and retries if a timeout error was happend.

Non-persistent queue

By default, no persistence is used and forwarded requests is not serialized. A limit (the option –watermark) at which new concurrent requests will be dropped.

Persistent queue

If you want use persistent queue you need to specify the option –persistent with uri.

One of use cases

For example we can have a rails app which send exceptions to an Errbit by the gem airbrake. We know the errbit can be not available by network issues or some else reasons, but we do not want to lose exceptions. To resolve this problem we can start yupd on the same host with the rails app:

yupd --listen localhost:8081 --status-code 201 --persistent bdb:///var/db/yupd-errbit errbit.host.somewhere

Or if you have Redis:

yupd --listen localhost:8081 --status-code 201 --persistent redis://localhost/yupd-errbit errbit.host.somewhere

Reconfiguration of airbrake gem is very ease:

Airbrake.configure do |config|
  config.host    = "localhost"  # yupd host
  config.port    = 8081         # yupd port
  config.api_key = "api_key_for_your_app"
end

Now problem of availability errbit is assigned to the yupd.

Contributing to yup

Feel free to contribute.

Credits

Yup is maintained and funded by Denis Sukhonin.

Thank you to all the contributors!

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