CUCM 8.6.2 Web Administration Page is being blocking occasionally

[afcollazosr]

Hi Everyone:

I have a little problem with the administration page of the CUCM 8.6.2.20000-2. The web page (occasionally) go to blank page (in publisher or subscriber). The only thing that I can do to restablish the service is restart by SSH the service Cisco Tomcat.

The same thing happend when I am working and suddenly I press any link or access and the page go to blank. When this situation occur, the other functions are fine, the only problem is with the web page. I have tried with different browsers like IE, Mozilla, Chrome but the result is the same. I have checked the RTMT but I can not see anything wrong.

What can it happen? Any idea? Any advice?

I appreciate your help. Thanks.

[clileikis]

Hi there,

How often does this occur?  There is an issue with Tomcat and CUCM 8.6 in regards to AXL requests:

CSCty36110 - CUCM 8.6 Tomcat OOM with "com.rsa.sslj.x.cu" suspect under high AXL Load

Description

Symptom:
Tomcat becomes unreachable or inaccessible after a number of days. So far the observed timeframe tends to be between 7 and 20 days.
If the generated hprof shows the main suspect as "com.rsa.sslj.x.cu" then this is most likely the cause.
Conditions:
This has been observed in environments where a very large number of AXL queries are done on the CUCM server.
Workaround:
Restart the Tomcat service on the CLI using "utils service restart Cisco Tomcat".
Prevent the external application from performing AXL queries. This is usually not a feasible workaround as AXL queries are a requirement for basic functionality of some applications.

HTH,

Chris

[afcollazosr]

Hi Chris, how are you?

Thanks a lot for your advice. The situation have not a pattern, it occurs one day and then days after. I checked the bug and seems to be correct for this situation. Thanks again !!!

BR.

Andres