login - rails,devise, heroku and multiple dynos -

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we have application running on heroku, has multiple dynos. let's application has 2 dynos, , when user logs in, he's being served first dyno. if reason, subsequent requests served second dyno, appears not being logged in.

the way fix ( tested ) seems setting session store cookie store. has else encountered problem before?

i think didn't have other session store configured properly.

did have cache service wired in memcached or redis, each dyno shared location finding session info?

heroku memcache ruby


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