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

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  • From: caleb racey <>
  • To: 'Gagné Sébastien' <>, "" <>
  • Subject: [grouper-users] RE: vt-ldap with multiple domain controllers
  • Date: Mon, 10 Dec 2012 14:03:49 +0000
  • Accept-language: en-GB, en-US

If it’s the same as the ldap connector in shib (I think it is) then I think you can pass in multiple  urls in the config and it tries  them in turn e.g. for login binding we have



edu.vt.middleware.ldap.jaas.LdapLoginModule required

      host="ldap:/ ldap:// ldap://"



hope this helps






From: [mailto:] On Behalf Of Gagné Sébastien
Sent: 07 December 2012 15:43
Subject: [grouper-users] vt-ldap with multiple domain controllers



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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