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LDAP search in Jabber causes high CPU Usage in AD-LDAP Server

Answered Question
Jan 27th, 2014
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Hallo,


at the moment about 250 users with jabber 9.1.5 are online. (9.6.0 is being prepared for rollout the next time)

We are recognizing a high CPU load on the Microsoft Active Directory Conroller which I set as the directory server (sometimes 100% vor a few minutes)

Its connected over the Global Catalog port for 4 Domains where all users are placed.


Which directory did you use for jabber clients?

Have other companys this problem too, espacially with more clients? (we plan about 1000 users concurrent)


Best regards


Christian

Correct Answer by Ashish Patel about 3 years 6 months ago

Hi


Please take a look at this section, are the AD attributes suggested indexed?  Are you sure high CPU it is definitely related to Jabber activity?

Attributes on the Directory Server

http://www.cisco.com/en/US/docs/voice_ip_comm/jabber/Windows/9_1/JABW_BK_CA48EE46_00_cisco-jabber-for-windows-administration_chapter_01.html


This may be the reason for high CPU.  Do you need to point to the Global Catalog instead?  Are the attributes replicated on the GC?


Rgs

ashish

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Correct Answer
Ashish Patel Tue, 02/11/2014 - 13:36
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  • Cisco Employee,

Hi


Please take a look at this section, are the AD attributes suggested indexed?  Are you sure high CPU it is definitely related to Jabber activity?

Attributes on the Directory Server

http://www.cisco.com/en/US/docs/voice_ip_comm/jabber/Windows/9_1/JABW_BK_CA48EE46_00_cisco-jabber-for-windows-administration_chapter_01.html


This may be the reason for high CPU.  Do you need to point to the Global Catalog instead?  Are the attributes replicated on the GC?


Rgs

ashish

nelcnetworks Thu, 09/18/2014 - 04:55
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I too have this problem our server guys are reporting a high cpu usage and say it is caused by jabber trying to look up telephone numbers. I am told that all our domain controllers are set as Global Catalogs. We have a single domin.

I have raised this as a tac case with cisco and the initial reply was to change the port that was used to access LDap. I am told however that that has not worked.

Christian Neidl Thu, 09/18/2014 - 07:59
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Attributes on the Directory Server

You must index attributes on your directory server so that Cisco Jabber for Windows can resolve contacts.

If you use the default attribute mappings, ensure the following attributes are indexed:

- sAMAccountName
- telephoneNumber
Additionally, ensure you index the following attributes for secondary number queries:

-otherTelephone
-mobile
-homePhone

 

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