Mark Smith's Journal

Branch: refs/heads/main Home: https://github.com/dreamwidth/dreamwidth Commit: 4b5bcf8ad5cda83928da05e87508127b1fdd3a46 https://github.com/dreamwidth/dreamwidth/commit/4b5bcf8ad5cda83928da05e87508127b1fdd3a46 Author: Mark Smith mark@dreamwidth.org Date: 2026-03-12 (Thu, 12 Mar 2026)

Changed paths: M app.psgi A cgi-bin/Plack/Middleware/DW/WriteTimeout.pm A t/plack-write-timeout.t

Log Message:

Add SO_SNDTIMEO middleware to prevent Starman workers blocking on dead connections

When the ALB closes a connection before Starman finishes writing a response (e.g. due to idle timeout), the worker's write() blocks for 15-30 minutes waiting for TCP retransmits to exhaust. With 10 workers, this quickly deadlocks the entire server.

The new DW::WriteTimeout middleware sets SO_SNDTIMEO on the client socket via psgix.io so that blocked writes fail in seconds instead of minutes, freeing the worker to handle new requests.

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

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Branch: refs/heads/main Home: https://github.com/dreamwidth/dreamwidth Commit: 453fa0142c344ae33d3d208067f110e33d7d48d5 https://github.com/dreamwidth/dreamwidth/commit/453fa0142c344ae33d3d208067f110e33d7d48d5 Author: Mark Smith mark@dreamwidth.org Date: 2026-03-12 (Thu, 12 Mar 2026)

Changed paths: M src/dwtool/internal/ui/app.go M src/dwtool/internal/ui/logs.go

Log Message:

Update dwtool log filtering to be more useful

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Branch: refs/heads/main Home: https://github.com/dreamwidth/dreamwidth Commit: 11c40353c19cc0d986a932efe41668023117b3c6 https://github.com/dreamwidth/dreamwidth/commit/11c40353c19cc0d986a932efe41668023117b3c6 Author: Mark Smith mark@dreamwidth.org Date: 2026-03-11 (Wed, 11 Mar 2026)

Changed paths: M cgi-bin/LJ/SynSuck.pm M cgi-bin/ljlib.pl

Log Message:

Fix feed fetching on Ubuntu 22.04+ and reduce backoff aggressiveness

Force HTTP/1.1 via SSL_alpn_protocols in LJ::get_useragent. LWP does not support HTTP/2, but IO::Socket::SSL on 22.04+ advertises h2 via ALPN by default, causing servers like Tumblr to respond with HTTP/2 which LWP can't parse ("500 Server closed connection").

Also reduce exponential backoff cap from 30 days to 48 hours (max multiplier 2^4=16 instead of 2^7=128) and replace fixed 0-4 minute jitter with proportional jitter (up to 10% of delay) so retries stagger more effectively.

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

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Branch: refs/heads/main Home: https://github.com/dreamwidth/dreamwidth Commit: 7e2581ef4c63b5fd84be3771093348bb9b65fded https://github.com/dreamwidth/dreamwidth/commit/7e2581ef4c63b5fd84be3771093348bb9b65fded Author: Mark Smith mark@dreamwidth.org Date: 2026-03-09 (Mon, 09 Mar 2026)

Changed paths: M cgi-bin/DW/Request/Plack.pm M t/plack-request.t

Log Message:

Fix Plack print() dropping all arguments after the first

DW::Request::Plack::print() only captured $_[1], silently discarding any subsequent arguments. This broke callers that pass multiple args — notably DW::Controller::Interface::Flat which uses $r->print($key, "\n", $val, "\n"), causing the flat client protocol to return keys with no newlines or values.

The Apache2 implementation correctly forwards all args via $self->{r}->print(@). Match that behavior by joining @ before appending to the response body.

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

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