Phidgets Forums

I am not sure when this happened... But, I just noticed that apt-get on all my SBC3s was broken. The only host listed in multistrap-debian.list was commented out. At the same time, I see that the only process writing to /var/log/syslog is the cron. Even on boot, nothing is being logged.

Is something broken?

After uncommenting the hosts in multistrap-debian.list I was able to do an apt-get update, and then an upgrade and things seem to be working (more-or-less) normally.

One of the problems I was experiencing was the phidgetwebservice21 dropping out at roughly 10-15 minute intervals. I was in the process of debugging that issue when I ran into the other problems noted above. After the upgrade, the issues with the web service seem to have vanished. Odd?

oops. I wrote too soon. Still having the problem with the phidgetwebservice21 dropping out and then restarting around 2 minutes later. I don't actually think this is a web service issue, since the entire SBC3 becomes unresponsive during the period when the web service is unavailable.

For anyone else with the same apt-get problem. It was simple cockpit error. The issue was the Include full Debian Package Repository option on the Packages web management page. I had forgotten about that and had unchecked it.

However, the phidgetswebservice21 problem is ongoing, on just one SBC3. From what I can discern:

• The computer does not reboot during these outages.
• Nothing is looked in any of the /var/log logs
• No processes consume unusual cpu during the outage (I captured the top ten processes every 4 seconds into a file)
• Pinging the machine shows an odd, but consistent pattern:
  • ping times for from >1ms to 100 to 800ms
  • then, a period of 10 20 15 seconds of no response
  • followed by more slow responses
  • follwed by 30 seconds of no response
  • and, finally back to < 1ms - and the machine is again accessible and the webservice reconnects

At this point I strongly suspect a network hardware problem. But, ethanol doesn't show anything.

Have you ruled our issues with other network hardware? Maybe try a different switch?

Do the link/activity LEDs on the SBC do anything during the outages?

-Patrick

All the SBC’s are on the same switch. But only the one is having trouble. I haven’t gone down to look at the lights on the SBC, I guess I should do that. Unfortunately it’s not nearby, it’s in the chicken coop