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fix message monitor #104

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merged 3 commits into from
Apr 2, 2024
Merged

fix message monitor #104

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27bab41
fix message monitor
kx1t Mar 25, 2024
ffc16fa
Restart When Stale set to default-TRUE
kx1t Mar 25, 2024
e789668
Restart When Stale is default `true`
kx1t Mar 25, 2024
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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -278,7 +278,7 @@ You should now be feeding ADSB-ES & UAT to the "new" aggregators, FlightAware, a
| `LAT` | Latitude of your receiver. Only required if you want range statistics for InfluxDB, Prometheus, or tar1090/ultrafeeder graphs. | Unset |
| `LON` | Longitude of your receiver. Only required if you want range statistics for InfluxDB, Prometheus, or tar1090/ultrafeeder graphs. | Unset |
| `DUMP978_MSG_MONITOR_INTERVAL` | Interval between runs of the Message Monitor that checks if new messages are received. Format of value is anything that is accepted by the Linux `sleep` command | Unset (30 minutes) |
| `DUMP978_MSG_MONITOR_RESTART_WHEN_STALE` | If set to `true`/`on`/`yes`/`1`, the receiver process is restarted when no messages are received during the monitoring interval | Unset (`false`) |
| `DUMP978_MSG_MONITOR_RESTART_WHEN_STALE` | If set to `true`/`on`/`yes`/`1`, the receiver process is restarted when no messages are received during the monitoring interval | `true` |
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Is this change reflected in the Dockerfile? I suspect the default already is true, but I’m not sure.

Also, I’m not sure I’m a fan of making it the default behavior. It is going to cause a lot of log spam in this container, as well as any other container that also plugs in and grabs UAT data if it is restarting with some frequency. Basically, what I think I’m ultimately saying is that the odds there is an actual reception issue are really low, and restarting the decoder isn’t really beneficial. That said, if the feeling among everyone is this is the better way, then I’m fine with it.


### `dump978-fa` General Options

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15 changes: 11 additions & 4 deletions rootfs/etc/s6-overlay/scripts/message-monitor
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Expand Up @@ -4,8 +4,13 @@
source /scripts/common
mkdir -p /run/stats
s6wrap=(s6wrap --quiet --prepend="$(basename "$0")" --timestamps --args)

# Adjustment Timeframe is the same as used for AutoGain, with a default of 0800-1800 "container time" if omitted
READSB_AUTOGAIN_ADJUSTMENT_TIMEFRAME="${DUMP978_AUTOGAIN_ADJUSTMENT_TIMEFRAME:-${READSB_AUTOGAIN_ADJUSTMENT_TIMEFRAME:-0800-1800}}"

# Restart When Stale is default-TRUE. This is acceptable - worst case, we'd restart the dump978 s6 service once every 30 minutes
DUMP978_MSG_MONITOR_RESTART_WHEN_STALE="${DUMP978_MSG_MONITOR_RESTART_WHEN_STALE:-true}"

while :
do
# Make sure we're receiving messages from the SDR
Expand Down Expand Up @@ -35,14 +40,16 @@ do
"${s6wrap[@]}" echo "[STARTING] Receiver starting: No messages have been received as the container is still starting"
new_msg_count=0
elif (( new_msg_count == old_msg_count )); then
# only print and restart if we're within the adjustment timeframe
if (( $(date +%s) < $(date -d "${READSB_AUTOGAIN_ADJUSTMENT_TIMEFRAME%%-*} today" +%s) )); then
"${s6wrap[@]}" echo "[WARNING] Receiver appears stale: No messages received since last run of the Messages Monitor ($secs_since_last_check secs ago)"

"${s6wrap[@]}" echo "[WARNING] Receiver appears stale: No messages received since last run of the Messages Monitor ($secs_since_last_check secs ago)"
# only restart if we're within the adjustment timeframe
if (( $(date +%s) >= $(date -d "${READSB_AUTOGAIN_ADJUSTMENT_TIMEFRAME%%-*} today" +%s) )) \
&& (( $(date +%s) <= $(date -d "${READSB_AUTOGAIN_ADJUSTMENT_TIMEFRAME##*-} today" +%s) )); then
if chk_enabled "$DUMP978_MSG_MONITOR_RESTART_WHEN_STALE"; then
"${s6wrap[@]}" echo "[WARNING] Restarting the dump978 service..."
s6-svc -r /run/service/dump978 2>/dev/null || true
fi
else
"${s6wrap[@]}" echo " No action is taken since we're outside the Adjustment Timeframe of ${READSB_AUTOGAIN_ADJUSTMENT_TIMEFRAME}"
fi
elif (( new_msg_count > old_msg_count )); then
"${s6wrap[@]}" echo "[INFO] Receiver is OK: $(( new_msg_count - old_msg_count )) messages received since last run of the Messages Monitor ($secs_since_last_check secs ago)"
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