Hostname lookup failures for Memetria

I'm getting `getaddrinfo: Name or service not known` when trying to connect to a Redis database.

on EC2: restarting the instance where your application runs or moving to a new instance will resolve the issue.

on Heroku: run `heroku ps:restart`. If you know which individual dyno is affected, run `heroku ps:restart [DYNO]`. To automatically detect and resolve this error condition on the platform, crash your application during startup with a script like this: check Heroku dyno connectivity.

on other platforms: a `restart` will resolve this error on most highly-available platforms. Check with your service provider for details or send us a note and let us know which platform you're on, and we'll point you in the right direction.

If you experience this error when trying to connect to Memetria for Redis™*, let us know so we can share additional information.

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