propagate spans to tasks spawned by Hyper #550
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Previously, in the `futures` 0.1 version of the proxy, we provided `hyper` with a custom executor to propagate `tracing` spans to tasks spawned by `hyper`. In the process of updating the proxy to `std::future`, this was removed, meaning that any tasks spawned by hyper are missing their spans. This makes events recorded by `h2` and so on hard to debug, especially when many connections are open. This branch fixes this by adding an implementation of `hyper::Executor` that propagates the current span when spawning a task. Signed-off-by: Eliza Weisman <eliza@buoyant.io>
olix0r
approved these changes
Jun 8, 2020
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Previously, in the
futures0.1 version of the proxy, we providedhyperwith a custom executor to propagatetracingspans to tasksspawned by
hyper. In the process of updating the proxy tostd::future, this was removed, meaning that any tasks spawned by hyperare missing their spans. This makes events recorded by
h2and so onhard to debug, especially when many connections are open.
This branch fixes this by adding an implementation of
hyper::Executorthat propagates the current span when spawning a task.
Signed-off-by: Eliza Weisman eliza@buoyant.io