How to see suppressed messages in the log file

Product support
1

I am using a docker image that is logging a lot which regularly results in a warning about suppressed messages due to slow reading in my BalenaCloud dashboard Logs window. Is there a way to see those suppressed messages ? If so where can I find them ?

28.08.19 14:24:20 (+0200)  pulseaudio-server  D: [pulseaudio] alsa-util.c:   avail_min    : 1104
28.08.19 14:24:33 (+0200) Warning: Suppressed 328 message(s) due to slow reading
28.08.19 14:24:34 (+0200)  pulseaudio-server  I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.default idle for too long, suspending ...
2

Hi janvda, while you cannot get those messages directly from the dashboard (they’re being dropped for a reason!) we do expose an on-device API which allows you to stream the device journal. There is an example application using this endpoint here: https://github.com/balena-io-playground/device-cloud-logging, and it is discussed in our documentation here: https://www.balena.io/docs/reference/supervisor/supervisor-api/#journald-logs.

Let me know how you get on, and if you require any further assistance! Cheers.

4

Thanks for sharing this. It is not that important for me to see all those suppressed messages but I was just wondering if there was an easy to way to view them.