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log endpoint: hint to reverse-proxy not to buffer

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As discussed in #88, nginx will buffer the chunked transfer-encoding
unless the proxy_buffering directive is disabled, or the
X-Accel-Buffering header is set to no. Do the latter to reduce
configuration burden on frontend reverse-proxy setups.
This commit is contained in:
Oliver Giles 2019-03-29 22:39:41 +03:00
parent 303fe7c6ae
commit 210787a352
1 changed files with 2 additions and 0 deletions
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src/server.cpp
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@ -415,6 +415,8 @@ private:
if(laminar.handleLogRequest(name, num, output, complete)) { if(laminar.handleLogRequest(name, num, output, complete)) {
responseHeaders.set(kj::HttpHeaderId::CONTENT_TYPE, "text/plain; charset=utf-8"); responseHeaders.set(kj::HttpHeaderId::CONTENT_TYPE, "text/plain; charset=utf-8");
responseHeaders.add("Content-Transfer-Encoding", "binary"); responseHeaders.add("Content-Transfer-Encoding", "binary");
// Disables nginx reverse-proxy's buffering. Necessary for dynamic log output.
responseHeaders.add("X-Accel-Buffering", "no");
auto stream = response.send(200, "OK", responseHeaders, nullptr); auto stream = response.send(200, "OK", responseHeaders, nullptr);
laminar.registerClient(cc.get()); laminar.registerClient(cc.get());
return stream->write(output.data(), output.size()).then([=,s=stream.get(),c=cc.get()]{ return stream->write(output.data(), output.size()).then([=,s=stream.get(),c=cc.get()]{