10-30-2024 09:03 PM
Hi Team,
We are noticing high memory utilization on cisco ISE 3.1 nodes after patch upgrade. we upgraded from patch 3 to Patch 9. The memory goes upto 80+ percent and then at one point it immediately reduces to 40%. When the memory goes high, it is impacting authentication services. Especially the guest captive portal goes down. Did anyone have same behaviour with patch 9?
10-31-2024 04:12 AM
What size node? What size deployment? Are you within the scale limits? https://cs.co/ise-scale
Any reason why 3.1 and not 3.3 or 3.4?
11-01-2024 06:07 AM
It is 16CPU/32GB PSN and 24CPU/96GB PAN and MNT… it is 35 nodes deployment and also another with 18 nodes. Problem happening on both deployment after upgrade. TAC said it could be due to broken ISE messaging service certificate on few nodes. My concern is why it started all of a sudden after upgrade.
11-01-2024 06:21 AM
11-01-2024 07:14 AM
@rajesh halvi wrote >...My concern is why it started all of a sudden after upgrade.
What can sometimes happen is that the VM's (if virtual deployments are used)
are configured on the edge w.r.t resources such as memory ; if it then starts using
somewhat more memory it may spike because of a trigger that has been set in motion and includes
other stuff 'with needs'.
I have had to increase memory in the past ; but usually it was after a full upgrade however ,
M.
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