ISE is reporting alerts for 100% usage of share memory...

[dgaikwad]

Hi Experts,

From a last few week, ISE nodes are reporting for 100% usage of the shared memory.
Checking from CLI, using show memory, following stats are reported:

From this output, I am not able to decipher cached and swap cached are the same?
Where could it be checked if cache is used?
Does it affect overall performance of the node? Since these are reported on the PSNs.

Any pointers?

[Mark Elsen]

 - Note that you are not mentioning your current ISE version , you also may find these threads informative : 

               https://community.cisco.com/t5/network-access-control/ise-2-2-high-memory-utilization-issue/td-p/3692200

               https://community.cisco.com/t5/network-access-control/excessive-memory-consumption-in-ise/td-p/3475902

 M.

[Charlie Moreton · Accepted solution]

For an issue such as this which can result in an impact on authenticating users, I would suggest opening a TAC case.

[ahollifield]

VM or Appliance?  If VM ensure you are using the correct memory allocation for your expected VM size and you have proper reservations configured.