The repo with the same name was the dead app
I spent a couple of hours one afternoon making changes to what I thought was the current iOS source tree for a side project, running builds, watching…
Read →TOPIC 0x7D·DEBUGGING
Category
debugging
22 posts tagged debugging.
Routing 24 silent catches to a real error bus
The "blocked on solo dev constraint" note in my own bug log was wrong. The work wasn't blocked, I just hadn't done it. Enumerating the silent catches in…
Read →A dashboard deadlock from missing per-task timeouts
My homelab home page started returning 504 for its /api/dashboard route. Nothing else was obviously broken. The page just hung.
Read →Recovering orphaned jobs after a worker restart
A backup service kept getting into a state where the worker queue showed "running" jobs that nobody was actually working on. The in-memory job queue was…
Read →Five cron jobs sharing one atomic-rename temp file
Five Python pollers, one per messaging source, all on *. Each one writes a shared cursors file to remember where it left off. The dashboard showed…
Read →qBittorrent was deleting files before Sonarr could import them
Sonarr's queue kept stalling. Episodes would show up as grabbed, sit in the queue, and then quietly fail to import. Re-grabbing the same release didn't…
Read →OneDrive sync was reverting my backend edits
Every few days my backend would lose a recent fix. The change would work, restart the service, work for hours, then vanish. Git showed the old code back…
Read →Route files were losing the immutable bit
I set chattr +i on my backend's main.py after a sync bug kept silently overwriting it. Months later, the iOS app started losing connectivity on a…
Read →The arr-stack disk-full trap
The home media pipeline went quiet. Nothing new was finishing. CPU on the torrent boxes was high but throughput was zero. Time to actually look at why.
Read →The CT-is-running-but-the-app-is-dead 502 pattern
Recurring failure mode on the homelab: the assistant's domain returns 502 from every browser, but pct list says the LXC is running and systemctl status…
Read →Two flags for one boolean, drifted apart
A user of a side-project reported that the "Set up 2FA in mobile app" link in their settings did nothing — and there was no way to move 2FA to a new…
Read →Disabled the schedule. Got paged anyway.
I disabled a stuck check-in schedule at 09:05. At 09:33 my phone buzzed with "Chester Frazier hasn't responded to their check-in." The schedule was…
Read →Auditing 22 references to GSIs that don't exist
A pre-release audit pass on a backend I run turned up 22 places where the code passed IndexName: foo-index to a DynamoDB query on a table where foo-index…
Read →Updating a DynamoDB row by the wrong key shape, for a year
A pre-release endpoint sweep on a backend I run turned up two 500s on the check-in respond and snooze endpoints. The cause was old: a composite-key table…
Read →PHP loose comparison turned an empty endpoint into a 500
A backend I run was returning 500s on GET /api.php with no endpoint= query param. Should obviously be a 400. Tracking it down landed me on one of those…
Read →Why the sleep-window learner kept collapsing to the wrong four hours
The v1 sleep-window learner for a side-project safety app produced a sleep window of 01:00–05:00 for me. My actual sleep is more like 23:00–07:00. The…
Read →Sonarr was dead because of a Cyrillic filename
Sonarr's web UI was unresponsive. systemd said the service was active (running). The process was using 100% of multiple cores. Load average on the…
Read →94% SpO2 is not an emergency
I got a high-severity SMS from my own safety app: "may be at risk. Factors: Low blood oxygen: 94%." 94% is normal. Consumer pulse oximeters have a ±2%…
Read →The arr stack wasn't crashing, qBittorrent was thrashing
I caught a "Sonarr's down again" frustration from a household user. The actual problem wasn't Sonarr at all — Sonarr was fine. It just had a download…
Read →MIME bodies disguised as attachments
My mail reader was showing "(no text body)" for a chunk of messages, including basically everything from iCloud. The body was right there in the raw…
Read →Sensor Offline alerts while traveling, twice
A safety app I run pinged me every hour with "Sensor Offline — no data from IFTTT in the last 24 hours" while I was on a trip. That sensor is the motion…
Read →Two weeks of silent torrent failures from one chown
Nothing new had landed in my movie library since the 4th of the month. Radarr looked healthy, the queue was just stuck at 321 items. Most of them showed…
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