Hey Curtis,
no expert here, but it seems that something like the Sun
Directory Proxy service may be able to do what you want -
http://www.sun.com/software/products/directory_srvr_ee/dir_proxy/index.xml
- see: http://docs.sun.com/app/docs/doc/820-2493/6ne3feeoa?a=view
Similarly, there are other load-balancing products that are supposed to
deal with geographically distributed LDAP servers, though these tend to
be switch-based, so expensive.
I suppose you could look into some DNS-based trickery, such as having
each site resolve the LDAP url locally, with a "fixed" backup url. Or
look at a weighted DNS resolver.
You'll probably want to have a look at the DSEE Forums for advice on
this - http://forum.java.sun.com/forum.jspa?forumID=761
Regards,
Rick
Curtis Cunningham wrote:
Hi experts,
IHAC who is deploying a geographically distributed SGD array. We will
be associating geographically close SGD servers and application
servers in the same "Load Balancing Group".
There is a lot of redundancy built into this deployment and as a
result there will be duplicated/replicated LDAP servers in each of our
locations. I remember that SGD accepts a list of URLs when specifying
LDAP authentication, and that the default behavior is to try the first
in the list, then if that's not available try the next, etc. From my
reading of the admin guide this is still the same in 4.4.
Ideally for this customer we would like to associate SGD servers in a
location with a local LDAP server in that same location. Is there any
other way to do this?
Thanks,
Curtis.
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