Replying to @pointous
@pointous @taylorleese It is mostly Scala in the Tweet-servicing service graph, but Python is too slow and hard to scale.
Ian Brown @igb
@pointous @taylorleese And there is Node on the web front-ends.
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@pointous @taylorleese It’s worth noting that we have our own fork of OpenJDK that we have optimized for Scala performance.