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#1640 Docs: document auto-raise of open-file limit in swamp serve reference

Opened by stack72 · 8/13/2026· Shipped 8/13/2026

PR #2137 added automatic raising of the open-file soft limit at serve startup via libc setrlimit. The swamp-serve reference docs should describe this behavior:

  • serve auto-raises the soft limit to 8192 when the hard limit allows it
  • logs an info message when the raise succeeds
  • falls back to a warning with instructions when the hard limit is too low
  • no user action needed on stock macOS (soft=256, hard=unlimited) — serve fixes it automatically
  • users only need ulimit -Sn 8192 or LimitNOFILE=8192 when the hard limit is also restricted

This should go in the swamp-serve reference page under a "Resource Limits" or "Prerequisites" section.

02Bog Flow
OPENTRIAGEDIN PROGRESSSHIPPED+ 1 MOREASSIGNED+ 2 MOREREVIEW+ 3 MOREPR_MERGED+ 1 MORENOTIFICATION_SKIPPED

Shipped

8/13/2026, 11:12:30 PM

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03Sludge Pulse
stack72 assigned stack728/13/2026, 9:25:45 PM

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