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"Communication itself isn't free, after all"

Off topic, but that's my problem with microservices, devs seem to be totally unaware of this.

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That's a decade old take. I don't think people are doing microservices and more.
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oh yeah definitely glad we have no more microservices in prod anywhere, that would be a mess
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More than two decades, folks were grumbling about this in the SOA days.
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I think the clearest example of that is that people think Redis can only function as a cache that loses data on crash or shutdown.

I think that’s because people replaced Memcached with Redis, and expect the same from it.

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AOF at scale causes failures, so you turn it off. Still makes a great cache though.
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