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machines/starkstrom: widen h2 stream window for ipfs uploads
With proxy_request_buffering off, nginx sizes the HTTP/2 per-stream flow
control window to max(client_body_buffer_size, http2_body_preread_size).
The 64 KiB default capped uploads at 64 KiB / 55 ms RTT = 1.2 MB/s while the
backend read slower than the client sent. Set client_body_buffer_size 8m for
the upload location; streaming (no disk spool) and timeouts are unchanged.
author
lassulus
date
(Sep 6, 2026, 5:51 PM CEST)
commit
452d0fff
452d0fff0e10d6d9009ba9db6224f3302ca3c49f
parent
afb34bfd
afb34bfd269290c395d3cedd8a234a66e7d9ad62
+9
+9
machines/starkstrom/ipfs-endpoint.nix
+9
machines/starkstrom/ipfs-endpoint.nix
···
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locations."/".extraConfig = ''
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proxy_pass http://127.0.0.1:8090;
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client_max_body_size 8g;
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# Stream multi-GB bodies straight through instead of spooling to disk.
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proxy_request_buffering off;
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# With unbuffered proxying over HTTP/2, nginx sizes the per-stream flow
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# control window to max(client_body_buffer_size, http2_body_preread_size)
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# (ngx_http_v2_read_request_body). The 64 KiB default capped uploads at
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# 64 KiB / RTT (~1.2 MB/s at 55 ms) whenever the backend read slower than
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# the client sent. 8 MiB in-flight per upload lifts the ceiling to
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# ~150 MB/s at that RTT.
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client_body_buffer_size 8m;
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# The backend hashes/pins for minutes before answering.
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proxy_read_timeout 3600s;
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proxy_send_timeout 3600s;
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'';