I wish to send my OpenWrt logs to an SaaS based provider.
Is there such a provider with free plan for very log volume?
the background to my question is: if i make a rsync backup with full bandwidth, OpenWrt crashes. If I limit the bandwidth with rsync, I have no problem. I want to debug this and look at the logs afterwards.
The 'best' and only sensible 'plan' for this, would be adding one to your own network. Anything that runs linux/ rsyslog and has mature/ removable storage qualifies, be it something like a RPi-zero (or x86, sunxi, rockchip, etc.) with a general purpose linux dsitribution or another (old) router with a USB port (the later probably needs more care to set up).
Just open a ssh session and run logread -f so all logs are sent to that terminal as they occur. Then open another terminal and do whatever causes the crash.