10-25-2019 08:09 AM
We have been live for about 3 weeks with ISE 2.4 using RADIUS authentication on our production wireless network. On Monday we started getting "No Data available" in Home>System Summary.
Even though authentications appear to still be working, the RADIUS Live Log is very rarely showing any new information.
The TAC suggests rebooting the server due to a known bug caused by memory utilization. We are in a two node HA pair.
- Am I likely to see an outage for RADIUS authentications during a reboot?
- Is it normal to have to reboot so soon after going live with ISE?
Solved! Go to Solution.
11-05-2019 12:57 PM
The bug I ran into had not affected SSH yet. The bug we had first caused the Home>System Summary to stop showing the system health information. Two days later the RADIUS Live Logs stopped working.
I was able to SSH into the servers to perform a reload and that resolved the problems for now.
10-25-2019 08:29 AM
10-25-2019 09:48 AM
Thanks for the response! That is the exact same bug the TAC thought we are running in to.
I ended up reloading the secondary server, promoting it to primary, then reloading the other server. The appears to have fixed the System Summary and RADIUS Live logs issues....for now.
I guess I will keep and eye on memory consumption and hope a patch for the bug is released soon. In the mean time I have trimmed back some of the Profiling Configuration options for the deployment in hopes of reducing the load on system resources.
If I get more information from the TAC I will post the results in hopes that it could help someone else in a similar situation.
10-25-2019 09:57 AM
11-05-2019 11:56 AM
What happens when the server runs out of memory? Does it become completely unavailable and a manual (physical) reboot is necessary? I have some nodes that aren't responding to SSH and I'm concerned I'm hitting this bug.
11-05-2019 12:57 PM
The bug I ran into had not affected SSH yet. The bug we had first caused the Home>System Summary to stop showing the system health information. Two days later the RADIUS Live Logs stopped working.
I was able to SSH into the servers to perform a reload and that resolved the problems for now.
06-25-2020 01:18 AM
Exact the same I have now under 2.6 patch 6.
10-25-2019 07:39 PM
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide