cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
187
Views
0
Helpful
4
Replies

High memory utilization on ISE 3.1 after patch upgrade - patch 9

rajesh halvi
Level 1
Level 1

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?

4 Replies 4

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?

rajesh halvi
Level 1
Level 1

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.

Very common after ISE upgrades to have to re-generate the ISE root CA and ISE messaging service certificates. I have no idea why IMS is so buggy but it is

 

   @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.



-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
    When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '