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fix: survive command exceptions; TV DHCP-reserved so pairing key stays valid

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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Mortdecai
2026-10-23 00:28:00 -04:00
parent df0ae875de
commit f7422c9d74
2 changed files with 11 additions and 0 deletions
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DECISIONS.md
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@@ -49,6 +49,8 @@ Format: `YYYY-MM-DD: <decision> — <why>`
- 2026-10-22: HA VM 706 pinned to 192.168.0.146 twice over — Omada DHCP reservation (MAC BC:24:11:3F:DC:7B) AND HAOS static IPv4 (`ha network update enp0s18 --ipv4-method static`) — HA had silently lost its IPv4 lease (~Aug 2026; IPv6-only, uptime 57d), cutting it off from MQTT/Caddy/Google: the "TV hasn't worked in months" outage. Static removes the DHCP dependency; reservation keeps the router from handing .146 to anyone else. - 2026-10-22: HA VM 706 pinned to 192.168.0.146 twice over — Omada DHCP reservation (MAC BC:24:11:3F:DC:7B) AND HAOS static IPv4 (`ha network update enp0s18 --ipv4-method static`) — HA had silently lost its IPv4 lease (~Aug 2026; IPv6-only, uptime 57d), cutting it off from MQTT/Caddy/Google: the "TV hasn't worked in months" outage. Static removes the DHCP dependency; reservation keeps the router from handing .146 to anyone else.
- 2026-10-23: TV DHCP-reserved at 192.168.0.20 (Omada) — bscpylgtv keys pairings by IP, so every DHCP drift (7 IPs so far) re-triggered the on-TV auth prompt, and a missed prompt hung `off` past the 60s timeout. New IP seeded with the newest stored key (.31) so no re-prompt. Also: on_message now catches all exceptions — one escaping killed paho's thread while the poll loop kept the process alive (silent zombie).
## Deferred / Rejected ## Deferred / Rejected
- **DHCP reservation for the TV (static IP):** not done — Pi-hole doesn't run - **DHCP reservation for the TV (static IP):** not done — Pi-hole doesn't run
DHCP (router does), so it's Seth's action on the router. The cached-IP probe DHCP (router does), so it's Seth's action on the router. The cached-IP probe
lgtv_mqtt.py
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@@ -110,6 +110,15 @@ def on_connect(client, userdata, flags, rc):
def on_message(client, userdata, msg): def on_message(client, userdata, msg):
# An exception escaping a paho callback kills the network thread while the
# poll loop keeps the process alive — a silent zombie systemd never restarts.
try:
handle_command(client, msg)
except Exception:
log.exception("command handling failed")
def handle_command(client, msg):
command = msg.payload.decode().strip().upper() command = msg.payload.decode().strip().upper()
log.info(f"Received command: {command}") log.info(f"Received command: {command}")