Increase Nginx limits for internal responses #3504
Merged
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The recent "Ops Review" revealed a mysterious behavior around the "inner" Nginx proxy: whenever we had a request timeout, we immediately had a second failure which returned a
413
response to the client. We initially thought that this was a configuration problem in the "outer" proxy, but that proved to be unfounded. Then I stumbled onto this explanation: because theclient_max_body_size
is increased only for the Pbench Server API routes, when the request times out and is redirected to the internal50X.html
page, the maximum request size changes back to the default, and the redirected request fails with a413
instead of the appropriate504
.This PR adds
client_max_body_size
to the two internal routes, to allow them to function properly in the face of large request sizes. (We don't make theclient_max_body_size
definition global, because there is no reason to tolerate large request sizes for the other routes.)