CUCM VM % usage is very high

[Ralph John Tampilic]

Hi Cisco,

Blessed day!

May we know what is the cause of high % VM usage of our CUCM Pub?

Please see logs below:

Thank you.

Regards,

Ralph

[Nuno Melo]

It seems the Tomcat process is consuming most of your memory, tomcat is normally used for the CUCM webpage and webservices, from here you could be running into somekind of bug depending on your CUCM version.

As a quick workarround i would suggest you ssh into cucm vm that has the problemand issue the:

utils service restart Cisco Tomcat

This will impact the access to the cucm webpage for a few minutes but the phones will be able to recieve and place calls normally.

After this the memory should go down, and you can investigate further using Cisco Bug toolkit:

https://cloudsso.cisco.com/sp/startSSO.ping?SpSessionAuthnAdapterId=standardnomfa&TargetResource=https://sso.cisco.com/autho/login/loginaction.html

[Ralph John Tampilic]

Hi Nuno,

Blessed day to you!

Okay I will do this and advise you the result.

Thank you for your assistance.

Regards,

Ralph

[Aeby Vinod]

Please attach the output of the following commands as well, you'll have to execute them by SSHing into the CUCM pub and accessing the CLI.

show tech runtime memory
show process using-most memory

Regards,
Aeby