The 🐳 Workspace (ubuntu:latest) job on main (run 38879556215, 1b36ef6120)
failed test-unit-python in the hook's second make test:
AssertionError: Regex didn't match: '^ localhost=ok/\d+ms$'
not found in ' localhost=ok/-1612931482679767779ms'
ubuntu:latest is Ubuntu 26.04, whose date is uutils coreutils. uutils
0.7.0 ignores the field width in %3N and prints all nine nanosecond
digits, so `date +%s%3N` yields a 19-digit value instead of epoch
milliseconds. Against main's sampler, uutils 0.7.0 date reports
localhost=ok/7081859ms, and an unpadded nanosecond value turns the
difference negative.
answer_once now takes both timestamps from /proc/uptime, which the
kernel prints with two decimals whatever date the image ships. The
sampler already reads /proc/net/udp, so it was Linux-only before. The
resolution is 10 ms; the same probe reports 10 to 20 ms with uutils
date on PATH.
The new test puts a date on PATH that does not understand %3N; main's
sampler dies on it, the fixed one does not call date for the latency.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
d14354e892 added both probes reading only /etc/dnsmasq.conf, but svc-net-tor writes its onion zone to /etc/dnsmasq.d/tor-onion.conf and leaves the main file with nothing but a conf-dir pointer. Every Tor host of run 33698844864 therefore captured resolve-inzone.txt as '[no output, exit 2]' and all 471 sampler lines as inzone=unconfigured: during the resolver outage that ended Gitea#0, nobody ever asked dnsmasq for an onion name, and two investigations went without the one measurement that would have settled them.
Both probes now follow the conf-dir pointer, main file first so a lab node with its zone in the main config answers as before. Each is exercised by a test that runs it against real files rather than comparing its text, which the rescue constant had no test for at all.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Run 32118850138 lost the :53 listener, so the sampler counts listeners.
Run 32538854067 lost DNS with the listener still bound: sockets-udp.txt
showed dnsmasq holding 0.0.0.0:53 while every forwarded query timed out,
and the sampler reported that hour as healthy.
Each tick now also records what a glibc caller gets back — for the zone
this resolver owns, derived from its own address= line, and for one name
it must forward — with the latency that caller paid. The rescue collector
probes the in-zone name too: probing external names alone cannot separate
"forwarding is gone" from "dnsmasq is gone".
The sampler now also runs on the swarm lab DNS nodes; it only ever ran in
the compose path, which is why the Magento artifact carried no sampler log
at all. Its location comes from group_vars FILE_DNS53_SAMPLER_LOG and is
required at every call site, so a run cannot quietly collect nothing.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Run 32118850138 left a dnsmasq that was alive with zero sockets,
nothing logged, and a 6m39s death window between two host DNS
consumers. Capture each dnsmasq's fd table and rlimits in the rescue
snapshot (closed listeners vs exhausted fd table vs lost netlink
watch), and sample the :53 listener set every 10s inside the DiD
container so the next occurrence is bounded to one bucket.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5.5