Content Replication takes several days to complete

  • 7004497
  • 22-Sep-2009
  • 22-Nov-2013

Environment

Novell ZENworks 10 Configuration Management with Support Pack 1 - 10.1 Content

Situation

Content Replication takes several days to complete
Very large amounts of data are being replicated

Resolution

This is fixed in version 10.2.1 - see KB 7003766 "ZENworks 10 Configuration Management 10.2.1 - update information and list of fixes" which can be found at https://www.novell.com/support
 
Note also in 10.3 and later, CDPDownloadLimit is  no longer used as scheduling can now be done for satellite servers.

Additional Information

Be aware that Throttling the Content Replication Rate https://www.novell.com/documentation/zcm10/zcm10_system_admin/data/bafdqz7.html can also severely limit the amount of data that can be replicated in a given period - the number is in kilobytes per second

Further optimization can be configured by adding the following to the registry:
 

On Windows:  String value 10.3 and later HKLM\SOFTWARE\Novell\ZCM, CDPWebCallWaitTimeout in milliseconds, default is 45000.
On Linux: Modify the /etc/opt/novell/zenworks/conf/xplatzmd.properties file, Line: “CDPWebCallWaitTimeout=xxxx”


 
On Windows: String value 10.3 and later HKLM\SOFTWARE\Novell\ZCM, CDPDownloadLimit, default is 50
On Linux: Modify the /etc/opt/novell/zenworks/conf/xplatzmd.properties file, Line: “CDPDownloadLimit=xxx”

The CDPWebCallWaitTimeout would be difficult to test unless the connection link could be slowed down so that the call takes longer than 30 seconds to complete / return.  If it is set to 2 minutes, the client should wait that long for a response.

The CDPDownloadLimit would overwrite the default setting of 50 pieces of content per download thread.  Ideally, it could be to 1000 or even 100000.  Then when 'zac wake-cdp ' is run, it should attempt to download that much content.