Performance issues on a Raspberry Pi Zero W

[Gizimo]

Hi,
i have implemented the Project on a Raspberry Zero/W
https://www.balena.io/blog/build-an-environment-and-air-quality-monitor-with-raspberry-pi/
Now my Rasp is constantly crashing after few days of working perfect

Got this error:

19.02.20 13:14:22 (+0100) sensor ---------------------------------------- 19.02.20 13:14:22 (+0100) sensor Exception happened during processing of request from ('172.17.0.4', 50622) 19.02.20 13:14:22 (+0100) sensor Traceback (most recent call last): 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/socketserver.py", line 313, in _handle_request_noblock 19.02.20 13:14:22 (+0100) sensor self.process_request(request, client_address) 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/socketserver.py", line 341, in process_request 19.02.20 13:14:22 (+0100) sensor self.finish_request(request, client_address) 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/socketserver.py", line 354, in finish_request 19.02.20 13:14:22 (+0100) sensor self.RequestHandlerClass(request, client_address, self) 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/socketserver.py", line 681, in __init__ 19.02.20 13:14:22 (+0100) sensor self.handle() 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/http/server.py", line 422, in handle 19.02.20 13:14:22 (+0100) sensor self.handle_one_request() 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/http/server.py", line 410, in handle_one_request 19.02.20 13:14:22 (+0100) sensor method() 19.02.20 13:14:22 (+0100) sensor File "/usr/src/app/scripts/sensor.py", line 112, in do_GET 19.02.20 13:14:22 (+0100) sensor self.wfile.write(json.dumps(measurements[0]['fields']).encode('UTF-8')) 19.02.20 13:14:22 (+0100) sensor File "/usr/local/lib/python3.5/socket.py", line 594, in write 19.02.20 13:14:22 (+0100) sensor return self._sock.send(b) 19.02.20 13:14:22 (+0100) sensor BrokenPipeError: [Errno 32] Broken pipe 19.02.20 13:14:22 (+0100) sensor ----------------------------------------

[jellyfish-bot]

[ab77] This issue has attached support thread https://jel.ly.fish/#/35656db6-fcbf-4dbb-8698-825214c6923f

[jellyfish-bot]

[ljewalsh] This issue has attached support thread https://jel.ly.fish/c32c044e-4c6a-48a8-a4bb-faa0a3705857

[robertgzr]

I just posted a reply with the results of our investigation here: https://forums.balena.io/t/startup-and-shutdown-problems-balena-sense/119345/32

tl;dr see balena-os/meta-balena#1910 (comment)

[jellyfish-bot]

[saintaardvark] This issue has attached support thread https://jel.ly.fish/3b35044a-6b99-417b-90af-85055b5e7b7d

[jellyfish-bot]

[saintaardvark] This issue has attached support thread https://jel.ly.fish/9cfdf4d4-c626-4ba1-aa46-35e357fdbb08

[saintaardvark]

Hi @Gizimo -- one suggestion is to try upgrading the OS for your Pi Zero. The latest version in production (2.54.2+rev1 as I write this) enables support for zram, which may help performance in cases where resources are constrained. Can you give this a try and see how it works?