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Crashing every couple of days

From Cumulus MX version 3 build 3044 the development baton passed to Mark Crossley. Mark has been responsible for all the Builds since, and has recently released Cumulus MX version 4. He has made the code available on GitHub. It is Mark's hope that others will join in this development, but at the very least he welcomes your ideas for future developments (see Cumulus MX Development suggestions).

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Crashing every couple of days

Post by KF0KFL-13 »

I'm running Cumulus MX on a Libre Computer with a Raspberry PI OS.

Every couple of days it stops and I have to power cycle to start up again.

In crontab I scheduled a reboot everyday at midnight.

That still doesn't seem to solve the problem.

Any advice?
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Re: Crashing every couple of days

Post by freddie »

Could you zip up a log file from your MXdiags folder that covers a crash, and attach it to a reply to this topic please.
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Re: Crashing every couple of days

Post by mcrossley »

As above diags please. But note, midnight is the worst possible time to reboot, Cumulus will be in the middle of its overnight processing.
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Re: Crashing every couple of days

Post by KF0KFL-13 »

I will upload the MXdiag files when and if it crashes again. I also changed the nightly reboot for 2a.m instead of midnight ( computer is set for UTC time ).
Thanks for the advice.
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Re: Crashing every couple of days

Post by mcrossley »

You would be best avoiding whole hours as well as that is when the log gets written, database updated, ini files updated etc, if your logging interval is say 5 minutes, then make it reboot at 2 or 3 minutes past the hour.
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Re: Crashing every couple of days

Post by KF0KFL-13 »

OK! I finally got some data to share. While I was out of state I noticed that it appeared my Cumulus MX station stopped putting out information. I had my wife power cycle the computer running CMX and it appeared to come back up. Looking at my APRS raw data, it appears to have stopped somewhere between 18:37 CDT and 19:40 CDT on May 31 after running continuously since May 27th and 16:26 CDT. I have CMX scheduled to restart every night at 01:02 every night. Looking through the MXDiag files I see Data input appears to have stopped around the time the error was noticed. I believe my weather station ( Ambient WS-2902D ) was working because it was updated on ambientweather.net and PWS and Weather Underground. PWS and Weather Underground both push out from ambientweather.net. Since it appears that CMX is not really crashing, but data is being stopped. Any ideas what may be the cause? Thanks in advance!
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Re: Crashing every couple of days

Post by water01 »

Don't suppose you have a neighbour broadcasting on the same Mhz band or is the receiving station near something that could cause interference i.e. DEC phone?
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Re: Crashing every couple of days

Post by KF0KFL-13 »

I don't know if any neighboring weather stations nearby. Maybe our cordless phones. I'll have to check what frequency they're on.
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Re: Crashing every couple of days

Post by KF0KFL-13 »

After realizing that my crashing issue seems to occur when data stops, I decided to add a reboot script to run when data stops in the alarm settings.

I tested it's function by stopping the data but the script seems to need permissions.

2024-06-05 19:53:00.374 Alarm (Data Stopped): Error executing external program 'reboot.sh': An error occurred trying to start process '/opt/CumulusMX/reboot.sh' with working directory '/opt/CumulusMX'. Permission denied

Any idea how to fix the permissions?

I've attached a text file of the script along with the MXDiags
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Re: Crashing every couple of days

Post by HansR »

KF0KFL-13 wrote: Thu 06 Jun 2024 1:14 am After realizing that my crashing issue seems to occur when data stops, I decided to add a reboot script to run when data stops in the alarm settings.

I tested it's function by stopping the data but the script seems to need permissions.

2024-06-05 19:53:00.374 Alarm (Data Stopped): Error executing external program 'reboot.sh': An error occurred trying to start process '/opt/CumulusMX/reboot.sh' with working directory '/opt/CumulusMX'. Permission denied

Any idea how to fix the permissions?

I've attached a text file of the script along with the MXDiags
In reboot.sh the first command also requires a sudo (if you execute it as another user):

Code: Select all

sudo systemctl stop cumulusmx
You also can execute :

Code: Select all

sudo reboot.sh
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Re: Crashing every couple of days

Post by KF0KFL-13 »

I figured it out.

Had enter:
chmod +x reboot.sh

To change the permissions to have CMX execute it.

Working now
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Re: Crashing every couple of days

Post by water01 »

Make sure you do not do the reboot at times that MX is processing and saving lots of data, i.e. on the hour and the rollover time, as this can cause problems.
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Re: Crashing every couple of days

Post by KF0KFL-13 »

Thanks
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