[cisco-voip] dbrep timeout

[Lelio Fulgenzi]

Hey Ed, 

Brian Meade responded to a similar question I had. He forwarded off this DOC... 

https://supportforums.cisco.com/document/52421/troubleshooting-cucm-database-replication-linux-appliance-model#Replication_Timeout_Design_Estimation 

The default is set to 300 seconds which suits clusters of 5 or less nodes. Any more, you'll want to increase it. 

Here's the snippet: 



Server 1-5 = 1 Minute Per Server 

Servers 6-10 = 2 Minutes Per Server 

Servers >10 = 3 Minutes Per Server. 

Example: 12 Servers in Cluster : Server 1-5 * 1 Min = 5 Min, + 6-10 * 2 Min = 10 min, + 11-12 * 3 Min = 6 Min, 

Repltimeout should be set to 21 Minutes. 



--- 
Lelio Fulgenzi, B.A. 
Senior Analyst, Network Infrastructure 
Computing and Communications Services (CCS) 
University of Guelph 

519‐824‐4120 Ext 56354 
lelio at uoguelph.ca 
www.uoguelph.ca/ccs 
Room 037, Animal Science and Nutrition Building 
Guelph, Ontario, N1G 2W1 

----- Original Message -----

From: "Ed Leatherman" <ealeatherman at gmail.com> 
To: "Cisco VOIP" <cisco-voip at puck.nether.net> 
Sent: Tuesday, April 22, 2014 11:26:01 AM 
Subject: [cisco-voip] dbrep timeout 


Reviewing some docs for upgrading my primary production cluster from 8 to 9.1. What constitutes a "large cluster" wrt to the db replication timeout? 




    * Use the utils dbreplication setrepltimeout CLI command to increase the database replication timeout value when upgrading large clusters so that more subscriber nodes have sufficient time to request replication. When the timer expires, the first subscriber node, plus all other subscriber nodes that requested replication within that time period, begin a batch data replication with the publisher node. The default database replication timeout value is 300 (5 minutes). Restore the timeout to the default value after the entire cluster upgrades and the subscriber nodes have successfully set up replication. For more information, see the Command Line Interface Guide for Cisco Unified Communications Solutions . 


-- 
Ed Leatherman 

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