They're not brittle when running -- they're brittle if/when there's a failure. Bringing a Redis cluster back up is either "start each node in exactly the right

They're not brittle when running -- they're brittle if/when there's a failure. Bringing a Redis cluster back up is either "start each node in exactly the right order", "wait 10+ minutes", or "establish quorum yourself". Ten minutes can be a really long time in production.