Unexpected reboots

[rbourgeon]

Hello,
Some of my LMs reboot unexpectedly. No error seem to happen in the Errors log. I have a KNX object that counts the restart of the LM and I can see that it restarts about 3 times a day. I have another object used for storing the value of 15-minute average CPU load, and I don't see this load growing abnormally before the unexpected restarts.

When I go into system config > Status > System logs, I can only see the system logs since the last restart, so I can't know what happened just before the restart.

Would there be any way to understand what caused the LM to reboot?

[Daniel]

What about memory?

[rbourgeon]

I don't know. I will try to write RAM usage into a KNX object at regular intervals and see if there are memory leaks happening. Thanks for the suggestion.

[admin]

If you have an unexpected reboot due to the out-of-memory condition then the system won't be able save last object values. If you have multiple LMs then you can monitor one LM from another by exchanging values via KNX/IP.

[Dré]

I have a simulair problem with a Wiser.
I don't see any high CPU or memory.
I sent me CPU load to Influx I have every day 1 higher load of 22% at 12am because for saving energy values.
But that is not the time of the problems.

my current value's
CPU/IO: 0.18 0.08 0.02, Memory: 22%, KNX/TP: OK

I have 2 Wiser @home.
first I was testing with 2 of the same programs, but I disabled all script at the 2nd Wiser, these didn't show any problem. (1st show restarts).
Then I run the 2nd Wiser with all scripts run and both show restarts (not at the same time, but simulair).
Now I'm so far it looks like it one of the script who run for raining and or wind.
But these scripts don't create a high CPU. (as far I see)

if it is desired, I could share the 5 scripts.

[pioneersteffen]

Hi @all,

I also experiencing system reboots every 10-15 days but I changed nothing in the setup or scripting. Load and memory is between 0.3-0.7 and 40% memory.
How can I find the reason for the restart? Is there a log file stored somewhere? In the fault logs nothing is being raised.

Many thanks for your help!

Best regards
Steffen

[Daniel]

Look for any errors, big amount of logs. It will be very hard to figure it out if it happens so rarely

[pioneersteffen]

Hi Daniel,

many thanks for your reply. I watching the memory usage and over the time it rises day by day slightly starting from 40% to 63% today within 7 days.

That's why I used the system load app to analyze the running processes regarding their memory use. And on top of it is the following resident script which is running every 60s and should use: 26880.00MB at least this is shown in the app. I have no idea why this is so memory consuming. Can you please give me your thoughts about it and ideas to improve?

Many thanks for your help!

Best Regards
Steffen 

Code:

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-- API Doku: https://github.com/evcc-io/evcc/blob/master/api/api.go --https://jsonformatter.org/json-parser require('user.round') http = require('socket.http') ltn12 = require('ltn12') require('json') --- Abfrage Health Check EVCC OK = alles in Ordnung res, code = http.request({   url = 'http://192.168.178.96:7070/api/health',   method = 'GET', }) if code == 200     then             evcc_health_status = 1 -- i.O.     -- Abfrage Stati             res, code = http.request({               url = 'http://192.168.178.96:7070/api/state',               method = 'GET',             }) --log(res)             data = json.pdecode(res)                          --Carport             mode2 = data.result.loadpoints[1].mode --Lademodus "off"/"now"/"minpv"/"pv"             charging_state2 = data.result.loadpoints[1].charging -- Ladevorgang aktiv             plug_connected2 = data.result.loadpoints[1].connected -- Ladekabel verbunden             charging_plan_activ2 = data.result.loadpoints[1].planActive -- Ladetimer gesetzt             charging_power2 = data.result.loadpoints[1].chargePower -- aktuelle Ladeleistung             charged_energy2 = data.result.loadpoints[1].chargedEnergy -- geladende Energiemenge             car_soc2 = data.result.loadpoints[1].vehicleSoc -- Fahrzeug SOC                 if car_soc2 == nil then car_soc2 = 0 end             vehicleRange2 = data.result.loadpoints[1].vehicleRange -- Fahrzeug Reichweite             chargePower2 = data.result.loadpoints[1].chargePower -- Ladeleistung             chargedEnergy2 = data.result.loadpoints[1].chargedEnergy -- Energie letzte Ladung                          zaehler = grp.getvalue('12/2/4')             grp.checkupdate('12/2/2', chargePower2)                         grp.checkupdate('12/2/3', chargedEnergy2)             zaehler = zaehler + chargePower2/60             grp.checkupdate('12/2/4', zaehler) --minPV einschalten um frühzeitig anfangen zu laden               pvleistung = grp.getvalue ('43/3/1')       pvprognose = grp.getvalue ('43/4/26')        -- log(pvleistung, pvprognose, mode2, plug_connected2)         if     mode2 ~= "now" and         plug_connected2 == true and         pvleistung > 5000 and         pvprognose > 20 then                 grp.checkwrite('12/0/4', true)                res, code = http.request({                 url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/minpv',                 method = 'POST',                 })     elseif         mode2 ~= "now" and         pvprognose < 12 then                          res, code = http.request({                 url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/pv',                 method = 'POST',                 })             end                    -- Wallboxen Testeinschalten um Kabel gesteckt zu erkennen und ggf. Mindestreichweite herzustellen             now = os.date('*t')             hour = now.hour                             -- Carport             if                 (hour == 6 and minute == 1) or                 charging_plan_activ2 == true                     then                 --grp.checkwrite('12/0/4', true)                       --  res, code = http.request({               --  url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/pv',                -- method = 'POST',                -- })                                end     -- Wallboxen einschalten um 14:00 Uhr wegen Nachhausekommen             now = os.date('*t')             hour = now.hour                             -- Carport             if                 (hour == 14 and minute == 1)                         then             --    grp.checkwrite('12/0/4', true)                                --  res, code = http.request({                -- url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/pv',                -- method = 'POST',                -- })               end     -- Wallboxen einschalten wenn wir nach Hause kommen             p_handy_steffen = grp.getvalue ('44/1/8')             p_handy_andrea = grp.getvalue ('44/1/9')                             -- Carport             if                 p_handy_steffen == true or                 p_handy_andrea == true                        then             --    grp.checkwrite('12/0/4', true)                       --  res, code = http.request({                -- url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/pv',                -- method = 'POST',                -- })                                end     -- Herstellen Mindestreichweite von 80 km             notladen_wb2 = grp.getvalue ('12/3/1')             -- Carport             if                 plug_connected2 == true and                 car_soc2 > 1 and                 vehicleRange2 < 90             then             --    res, code = http.request({              --   url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/now',                -- method = 'POST',                -- })                         grp.checkwrite('12/3/1', true) -- Notladen aktivieren             elseif                 plug_connected2 == true and                 car_soc2 > 1 and                 vehicleRange2 > 80 and                 notladen_wb2 == true                         then             --    res, code = http.request({              --   url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/pv',               --  method = 'POST',                -- })                                 grp.checkwrite('12/3/1', false) -- Notladem deaktivieren             end     -- Wallboxen ausschalten             now = os.date('*t')             hour = now.hour             minute = now.min             solar_forecast_today = grp.getvalue ('43/4/26')             st_wb_carport = grp.getvalue('12/0/5')                -- Carport             if                 (charging_plan_activ2 == false and -- Ausschalten wenn nicht gesteckt und keine Ladetimer gesetzt                 plug_connected2 == false and                 (hour >= 19 or hour == 7 ))                 or                 (charging_state2 == true and                 car_soc2 == 100) -- Ausschalten wenn Auto voll geladen ist                 or                 (charging_state2 == false and                 solar_forecast_today < 4) and                 st_wb_carport == true                                      then             --    res, code = http.request({             --    url = 'http://192.168.178.96:7070/api/loadpoints/1/mode/off',             --    method = 'POST',            --     })                        -- os.sleep(55)                  --    grp.checkwrite('12/0/4', false)               end         else             evcc_health_status = 0 -- n.i.O.         --grp.checkwrite('12/0/4', false) --Wallbox ausschalten      --   grp.checkwrite('12/0/0', false) --Wallbox ausschalten         grp.checkwrite('12/2/1', 'evcc Fehler')         grp.checkwrite('12/2/0', 'evcc Fehler')     end -- Status für die Schalter Küche aufbereiten und senden   --Carport:         if plug_connected2 == true then plug_connected2 = "y" else plug_connected2 = "n" end             st_schalter_wallbox = mode2.."/"..plug_connected2.."/"..round(car_soc2,0).."/"..round(charging_power2/1000,1)         grp.checkwrite('12/2/1', st_schalter_wallbox) --log(res, code, evcc_health_status, mode2, charging_state2, plug_connected2,charging_plan_activ2, charging_power2, charged_energy2, car_soc2, vehicleRange2)

[Daniel]

Try using scheduled script instead of resident.

[Erwin van der Zwart]

Also the user lib round is not needed (no idea what the content is) but you can simply use math.round(...)

[pioneersteffen]

Hi Daniel, 
hi Erwin, 

many thanks for your reply. 

I switched four resident scripts to scheduled script and in the "system load app" I saw a massive reduction in the memory consumption by 30%. 

BUT when I look in the configurator app bottom right the "memory" value was unchanged. What is this value referring to? How can I look inside this value, which process/script is consuming what amount of memory?

Many thanks for your help!

Best Regards
Steffen

[Daniel]

System Load app is the best tool to look on individual processes.