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[grouper-users] vt-ldap with multiple domain controllers

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  • From: Gagné Sébastien <>
  • To: <>
  • Subject: [grouper-users] vt-ldap with multiple domain controllers
  • Date: Fri, 7 Dec 2012 10:42:39 -0500


We are using Grouper avec an Active Directory subject source. In production we have 5 controllers being returned in a DNS round-robin.


How does vt-ldap handles that ? Is there any configuration to handle one controller’s failure ? I didn’t find any.


I used the DNS round-robin URL (e.g. in the configurations and it’s working fine, but what if the controllers fails ? Will it always retry on the same controller’s IP/URL (e.g. or will it get a new one from the configuration ? I’ve configured retries in grouper (edu.vt.middleware.ldap.operationRetry = 5) is this enough to guarantee high availability or will all 5 retries fail on the same controller ?





Sébastien Gagné,     | Analyste en informatique

514-343-6111 x33844  | Université de Montréal,

                     | Pavillon Roger-Gaudry, local X-100-11


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