Over the past two days we have been having trouble with the web interface on a 3020. It is really slow, and no logs or anything show up (logs still go to Panorama.) After a few minutes the webpage will start throwing errors like "unable to connect". Then we get these system alerts:
appweb: exiting because service missed too many heartbeats
Also our monitoring tool has noticed that memory usage has gone from 41% to 73% in the past 4 days.
It looks like a hung service that appweb is trying to connect with, but I can't figure out which one. Any Ideas?
have you tried restarting the management plane ( > request restart software) or rebooting the firewall (> request restart system) or possibly upgrading the firewall ?
if none of this helps you may want to reach out to support so they can investigate
I have a case open, and they told me to "debug software restart process sslvpn-web-server", which I did. About half an hour later the management plane restarted itself, so I can see everything in the web pages again. I'm just trying to figure out what is causing this.
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