Twenty database connections on Postgres, and a panel that does not cry wolf (#199, #200)

The Database connections panel drew idle connections as their own line, which
sits on the max for ten minutes after any burst and read as the pool maxing out,
while at most two were ever in use. It now draws in use against the max, with
open dashed behind them. The pool itself goes from sqlx's ten to twenty: the
server allows 100 and had about 13 open across every app.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
2026-10-11 20:27:21 +00:00
parent 8dc6dd4ce6
commit c28accb8e4
4 changed files with 16 additions and 10 deletions

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@@ -172,7 +172,7 @@ a count says something happened, the lines and traces say why.
$Q prom 'max(max_over_time(ipx_deadair_busy_seconds{job="ipx"}[$range]))' 24h
```
`up` 0 means Prometheus cannot reach the port: the container is down or `metrics_bind` is
unset. Connections in use at the pool's max (10 on Postgres) means something is waiting for
unset. Connections in use at the pool's max (20 on Postgres) means something is waiting for
one: find the slow requests or scan of that time in check 3 and 5. A worker queue that only
grows means downloads are not keeping up, or the worker is stuck on one job. A runtime queue
above 0 for more than a scrape or two means every thread is busy: something is blocking a