On Wed, 5 Sep 2007, [EMAIL PROTECTED] wrote:

> What are common ways to manage a grid mapfile if there is no such support?

The two ways that I commonly for automated mapping management are:

 * gx-map  which allows a user to add/remove arbitrary mappings to their 
account from the comand-line. This happens on some teragrid sites (at 
least SDSC)

 * VOMS which allows a single server to indicate that a large number of 
people belong to a particular VO and be mapped to a VO-specific user on a 
large number of grid resources. This is common is OSG (where for example, 
anyone who is listed in the OSGEDU VOMS server gets mapped to user 
'osgedu' on many/most OSG sites)

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