PoC: streaming response in ProxyResource - #857
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Add streaming output for response body in ProxyResource.
netwarex
commented
Aug 7, 2026
| } | ||
| return responseBuilder.entity(method.getResponseBodyAsStream()).build(); | ||
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| responseBuilder.header("X-Proxy-Streaming", "1"); |
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marker: lets callers verify the streaming patch is loaded
netwarex
commented
Aug 7, 2026
| return responseBuilder.build(); | ||
| } | ||
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| StreamingOutput streamingBody = output -> { |
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copy the upstream body chunk by chunk, flushing after every read so each chunk reaches the socket immediately instead of accumulating in the servlet output buffer until the upstream response completes.
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Add streaming output for response body in ProxyResource.
Change vs. stock: forward() returns a StreamingOutput that copies the upstream response with a flush() after every read instead of handing Jersey the raw InputStream (which is copied without any flush, so the bytes sit in Jetty's 32KB output buffer until the response completes). With jersey.config.server.contentLength.buffer=0 active, each flush goes straight to the socket, so proxied responses (GenAIx generations) stream live and nginx's proxy_read_timeout is reset per frame. Also releases the commons-httpclient connection when the copy ends (stock code leaked it) and adds an X-Proxy-Streaming marker header so the patch's presence is verifiable.