MagicMirror Failing on Raspberry Pi Zero W Rev 1.1

sdetweil

@davidgagne the log is empty cause the pm2 app name is used for file names

davidgagne

@sdetweil Hm. I do have a file /.pm2/pm2.log that’s filled with thousands of these:

2024-08-04T00:35:12: PM2 log: App [MagicMirror:1] exited with code [1] via signal [SIGINT]
2024-08-04T00:35:13: PM2 log: App [MagicMirror:1] starting in -fork mode-
2024-08-04T00:35:13: PM2 log: App [MagicMirror:1] online
2024-08-04T00:35:19: PM2 log: App [MagicMirror:1] exited with code [1] via signal [SIGINT]
2024-08-04T00:35:19: PM2 log: App [MagicMirror:1] starting in -fork mode-
2024-08-04T00:35:19: PM2 log: App [MagicMirror:1] online
2024-08-04T00:35:25: PM2 log: App [MagicMirror:1] exited with code [1] via signal [SIGINT]
2024-08-04T00:35:25: PM2 log: App [MagicMirror:1] starting in -fork mode-
2024-08-04T00:35:25: PM2 log: App [MagicMirror:1] online

The last entry in that file is from 2024-08-04T21:22:04, which is around/about the last time I rebooted the Pi.

The tail of that log file looks like this:

2024-08-04T21:16:54: PM2 log: pid=3352 msg=failed to kill - retrying in 100ms
2024-08-04T21:16:54: PM2 log: Process with pid 3352 still alive after 1600ms, sending it SIGKILL now...
2024-08-04T21:16:55: PM2 log: App [pm2:0] exited with code [0] via signal [SIGKILL]
2024-08-04T21:16:55: PM2 log: pid=3352 msg=process killed
2024-08-04T21:16:56: PM2 log: PM2 successfully stopped
2024-08-04T21:22:02: PM2 log: ===============================================================================
2024-08-04T21:22:02: PM2 log: --- New PM2 Daemon started ----------------------------------------------------
2024-08-04T21:22:02: PM2 log: Time                 : Sun Aug 04 2024 21:22:02 GMT-0400 (Eastern Daylight Time)
2024-08-04T21:22:02: PM2 log: PM2 version          : 5.4.2
2024-08-04T21:22:02: PM2 log: Node.js version      : 20.9.0
2024-08-04T21:22:02: PM2 log: Current arch         : arm
2024-08-04T21:22:02: PM2 log: PM2 home             : /home/dvg/.pm2
2024-08-04T21:22:02: PM2 log: PM2 PID file         : /home/dvg/.pm2/pm2.pid
2024-08-04T21:22:02: PM2 log: RPC socket file      : /home/dvg/.pm2/rpc.sock
2024-08-04T21:22:02: PM2 log: BUS socket file      : /home/dvg/.pm2/pub.sock
2024-08-04T21:22:02: PM2 log: Application log path : /home/dvg/.pm2/logs
2024-08-04T21:22:02: PM2 log: Worker Interval      : 30000
2024-08-04T21:22:02: PM2 log: Process dump file    : /home/dvg/.pm2/dump.pm2
2024-08-04T21:22:02: PM2 log: Concurrent actions   : 2
2024-08-04T21:22:02: PM2 log: SIGTERM timeout      : 1600
2024-08-04T21:22:02: PM2 log: ===============================================================================
2024-08-04T21:22:04: PM2 log: [Watch] Start watching pm2
2024-08-04T21:22:04: PM2 log: App [pm2:0] starting in -fork mode-
2024-08-04T21:22:04: PM2 log: App [pm2:0] online

And in the /.pm2/logs/ directory I have MagicMirror-error.log, MagicMirror-out.log, pm2-error.log, and pm2-out.log.

That last one appears to contain what I would have expected to see in the MM-out.log.

I am not opposed to flashing the drive and starting from scratch if you think I should.

sdetweil

@davidgagne I really have no idea where you are.

Flash the legacy image
Boot , don’t update
Run my install script

butchkemper

@davidgagne The Pi Zero has 512KB memory, the default swapfile size setting is 100KB, and the swapfile is located on the SDcard which is not very fast.

I would suggest changing the swapfile size to 2048KB by editing /etc/dphys-swapfile and changing CONF_SWAPSIZE=100 to CONF_SWAPSIZE=2048.

You might consider moving from the SDcard to an SSD which will provide quicker data access and improved security against SDcard failure.

Lastly, you might consider changing from a Pi Zero to a Pi Zero 2 or something with more processing power. I use a Pi 3 Model A+ with a USB attached SSD and 2048GB swapfile size.

Butch

sdetweil

@butchkemper my install script increases the swap file size if its small (200meg or less).

davidgagne

@sdetweil @butchkemper I just checked that file and it has no CONF_SWAPSIZE variable.

There is a SWAPSIZE variable set to 1024.

Is there a chance that @sdetweil’s script misnamed that variable?

sdetweil

@davidgagne looks like you win the prize

but funny cause it worked!

sdetweil

@davidgagne @butchkemper
fixed

but do

free -m

from command lineto see how big swap is

davidgagne

@butchkemper said in MagicMirror Failing on Raspberry Pi Zero W Rev 1.1:

You might consider moving from the SDcard to an SSD which will provide quicker data access and improved security against SDcard failure.

If I connect an SSD via the data port and remove the SIM, will the 0 boot from the SSD? Or is there a way to configure the SIM to have it switch to the SSD or something?

sdetweil

@davidgagne pi 0 doesnt support boot from ssd/usb

you can make a hybrid, boot from read only sd , run from ssd

see
https://forums.raspberrypi.com/viewtopic.php?t=251733