Walmart launched its Spark Driver service in 2018, as it pushed to make its online ordering and delivering services more competitive.
Role: Google Senior Staff Engineer
。关于这个话题，safew官方版本下载提供了深入分析
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Stream implementations can and do ignore backpressure; and some spec-defined features explicitly break backpressure. tee(), for instance, creates two branches from a single stream. If one branch reads faster than the other, data accumulates in an internal buffer with no limit. A fast consumer can cause unbounded memory growth while the slow consumer catches up — and there's no way to configure this or opt out beyond canceling the slower branch.
Which it probably doesn’t. But I can’t shake that feeling.