I have great problem with raspberry and domoticz and mysensors gateway !

tbowmo

Continuous writes to a SD card, will make it fail at some point in time, it's just a question of time!.. And thus it will make the rpi fail.
Another thing can also be powering issues. (and even combined with a failing SD Card..)

Reza

thank you dear @tbowmo
so this (fail cpu or rpi board) can related to write in cd card ? because i am confused .i can not found why suddenly... . i tested power and didn't have problem(if power of my house have problem so first power supply of raspberry should to fail). my rpi was working for 7-8 month without any access people to it and i dont any install new app or program. just power on rpi and put on my table !
in rpi was just domoticz and mysensors gateway. i used this just for smart home.
now i want just found reason of problem and solve this :(
do you think this problem (rpi fail) can related to sd card ? (According to the above description)
if yes , so for resolve , what is your suggest ? use a usb memory ? or read only (i want use rpi just for domoticz and mysensors gateway and devices)?with read only i can not see any report in domoticz log ?
thank you

tbowmo

@Reza

In it's default setup, domoticz writes log files and other data to the SD card all the time, and this can (over time) wear the SD card down, and eventually make it fail!

F.ex. everytime my domoticz instance receives a message from the MySensors gateway, it writes a log entry, describing which node it received the data from. (I have my log file stored on a ram disk though, so not writing directly to the SD card)

Reza

@tbowmo
now you use a external memory for log ? and have not any problem ?
can you give me a Training link for setup step by step usb memory for write log ?

tbowmo

No, I do not use external memory.. I have a ram disk (I take some of the RAM memory of the RPI and converts it into a "disk")

See this link for more info http://bfy.tw/Dlkf

Reza

@tbowmo you was helper for me always . thank you for this .
i found this :
https://www.domoticz.com/wiki/Setting_up_a_RAM_drive_on_Raspberry_Pi
this is help me for dont happen fail again ?
again thank you for help

tbowmo

@Reza

It will not totally prevent these things of happening, but it might help reduce the risk of it happening again..

Reza

@tbowmo thank you again my dear friend.

gohan

@tbowmo How big did you make the RAMdisk?

tbowmo

@gohan

63Mb. The sd card was made for my old 512Mb RPI B, now it runs on my 1024Mb RPI2, and have been working fine for more than a year.

Reza

@tbowmo do you know how i can stop domoticz.sh (after i compile source domoticz) for change log...
i see this topic. (https://www.domoticz.com/wiki/Moving_Log_and_Temporary_Files_To_a_RAM_Drive)
but this is for standard install. i use source and i can not how stop and change and start again....

tbowmo

@Reza

I think you can find information here http://bfy.tw/Dn2q

Reza

@tbowmo i search about this and i test this code before:
Start Domoticz
sudo service domoticz.sh start

Stop Domoticz
sudo service domoticz.sh stop

Check if Domoticz is running
sudo service domoticz.sh status

but this is dont work for domoticz that compile from source.
this is result:


pi@raspberrypi:~ $ sudo service domoticz.sh stop
Failed to stop domoticz.service: Unit domoticz.service not loaded.
pi@raspberrypi:~ $ sudo service domoticz.sh status
● domoticz.service
   Loaded: not-found (Reason: No such file or directory)
   Active: inactive (dead)
pi@raspberrypi:~ $

for this i had to question from you :(

sundberg84

@Reza you can run ps to see current services running. Maybe its named something else when compiled from source - or its not just running? Did you try to start it before stopping it?

gohan

@Reza why are you running it from source and not from standard install?

Reza

@sundberg84
thank you friend. domoticz now is working for me.but when run ps i dont see domoticz:


pi@raspberrypi:~ $ ps
  PID TTY          TIME CMD
 1000 pts/0    00:00:00 bash
 1026 pts/0    00:00:00 Xtightvnc
 1031 pts/0    00:00:00 xstartup
 1034 pts/0    00:00:00 lxsession
 1066 pts/0    00:00:00 dbus-launch
 1084 pts/0    00:00:00 openbox
 1086 pts/0    00:00:00 lxpolkit
 1088 pts/0    00:00:00 lxpanel
 1090 pts/0    00:00:01 pcmanfm
 1134 pts/0    00:00:00 start-pulseaudi
 1135 pts/0    00:00:00 xprop
 1585 pts/0    00:00:01 Xtightvnc
 1589 pts/0    00:00:00 xstartup
 1592 pts/0    00:00:00 lxsession
 1624 pts/0    00:00:00 dbus-launch
 1643 pts/0    00:00:00 openbox
 1645 pts/0    00:00:00 lxpolkit
 1647 pts/0    00:00:00 lxpanel
 1649 pts/0    00:00:02 pcmanfm
 1693 pts/0    00:00:00 start-pulseaudi
 1694 pts/0    00:00:00 xprop
 2546 pts/0    00:00:00 ps

this is files after compile . and i put "/home/pi/rayan/domoticz" to "rc.local" for up after startup.

Reza

@gohan because i wanted change some things. for example font , theme , icons and etc...

tbowmo

@Reza

Once again, try this link http://bfy.tw/DnCc

(Hint.. try looking for answers by using google!)

Reza

@tbowmo thank you . i will search about this issue

Reza

@tbowmo thanks for all guide. i could do it. thank you
My friend just one question . i want know if i choose for example 20mb for ram driver (tmpfs). after full this memory (if i dont clear this), so what happen ? raspberry will be crash ? or not happen and I dont have any new log and report ? or again write on ago log ? thank you for all help

I have great problem with raspberry and domoticz and mysensors gateway !

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