The session db fixture now disposes the engine before deleting the file, since a
module under a no-op db (tests/sdk, tests/flow) may have connected first; the
sdk import tests forget the study packages they import; the supervision tests
keep the real quarantine length so it cannot expire mid-assertion.
A house's inverter broker dropped at 04:27 and the power flow was quarantined
20 seconds later. Quarantine was terminal — the supervised task returned and
only a publish or an engine restart could bring it back — so five hours of
power and battery readings are missing, and what ended it was an unrelated
`git pull` restarting uvicorn.
Two changes, both in that path:
- the failure budget is per task, not per flow. `power` runs an MQTT subscriber
and a Victron keepalive publisher against the same broker; they died together
and spent one shared budget in 41s, giving up before the 60s backoff step was
ever reached.
- quarantine is now a rest. The task sits out 5min, then 15, then an hour, and
each time gets its budget back and tries again, so a broker that comes back
is picked up without anyone watching. `quarantined` reads from whichever
tasks are currently resting.
The alert for it says when it will try again.
A wheel whose top-level module is `app` collides with anything else in a
user's venv, so the package that is about to be published takes the name
it is published under. Only the Python package moves; the repo, the
Docker WORKDIR and the compose project keep theirs.
A node's subscription, schedule or poll loop was a bare asyncio task: one
that raised outside its own retry handling was simply gone, and the node
went on being listed as running while nothing listened any more.
Those loops now run under a supervisor that restarts them with a growing
delay and quarantines a flow that burns through five restarts in five
minutes — a flow crash-looping every second is worse than one that is
visibly stopped, and the dashboard can now say which.
The MQTT subscription loses its private five-second reconnect in the
process: one backoff policy per socket, and it belongs to the supervisor.
stroblme
root