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Caleb Olin
May 22, 2014, 2:53:46 PM5/22/14
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Hello all!
I'm building an app that gets Redis login information from an external API. Is it possible to configure the connection post-startup? I know I can pass config changes in via actionhero.start, but I won't have access to the connection info until I've made that external request.
Evan Tahler
May 22, 2014, 5:40:30 PM5/22/14
to Caleb Olin, action...@googlegroups.com
No, unfortunately that's a bit of a catch-22. A number of internal actionhero processes require a redis connection (faye, cache, stats, etc), and won't boot without being able to connect.
I would suggest writing another script (outside of actionhero) to get that connection info and build the config/redis.js file first.
On Thu, May 22, 2014 at 11:53 AM, Caleb Olin <caleb...@gmail.com> wrote:
Hello all!I'm building an app that gets Redis login information from an external API. Is it possible to configure the connection post-startup? I know I can pass config changes in via actionhero.start, but I won't have access to the connection info until I've made that external request.
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Caleb Olin
May 23, 2014, 9:15:04 AM5/23/14
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Could I boot with fakeredis:true, then reset api.config.redis and api.redis later, after retrieving the connection info? Or will that get me into trouble with the internal processes?
Evan Tahler
May 23, 2014, 12:52:01 PM5/23/14
to Caleb Olin, action...@googlegroups.com
It might work for some use cases but I can't recommend it.
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You'll run into race conditions where maybe you get a client request before you have fully swapped redis connections, or a task worker is mid-job. You'll also have to re-init the Faye connection and the worker startup behavior, as they both read state from redis at boot.
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Caleb Olin
May 30, 2014, 5:17:15 PM5/30/14
to action...@googlegroups.com, caleb...@gmail.com
We ended up writing a standalone cache module that mimics AH's api.cache, but has some extra sugar to manage multiple connections. We left api.cache alone so we won't mess with internal processes.
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