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Using Crowd with redundant LDAP servers

Hi everybody,

in our company we have three LDAP-servers which point to one AD. This redundancy enables to use update/restart one of them, when the others are still online.

My question is now, do I encounter any problems when i configure three LDAP connectors in Atlassian Crowd which point to he same AD?

kind regards,

Andreas

5 answers

1 accepted

0 votes
Answer accepted

Although it's not officially supported, I've seem cases where customers have two identical LDAP servers and a load balancer in front of them. In this scenario Crowd could be configured pointing to the IP of the load balancer, instead of the actual servers.

Cheers

Connecting to replicated/redundant LDAP servers is not something which is is supported - https://confluence.atlassian.com/display/JIRA/User+Management+Limitations+and+Recommendations (that article is for JIRA and I guess it is the same for Crowd as JIRA has embedded crowd inside it)

Also - https://jira.atlassian.com/browse/CWD-422

Basically you can create several different LDAP directories but not for redundancy purposes.

...But why? Why do you guys put yourself into this position? It can be done......so......easily. Why not support it?

Using things like ucarp/relayd/carp/pacemaker and point crowd at the virtual shared IP works just fine...So why not allow us to enter 2 ldap servers in crowd to be used for redundancy? I don't get it.

You can add multiple LDAP addresses for one directory:

In Crowd 2: "ldaps://1.1.1.1:636 ldaps://2.2.2.2:636"

In Crowd 3: "1.1.1.1:636 ldaps://2.2.2.2" (Crowd will just concatenate "ldaps://" + address + ":636").

In the end this solution broke too. Setting up a simple load balancer, as in the accepted answer, works well.

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