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Re: [grouper-dev] Draft Minutes: Grouper call 8-May-2013

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  • From: Scott Koranda <>
  • To: Emily Eisbruch <>
  • Cc: "" <>
  • Subject: Re: [grouper-dev] Draft Minutes: Grouper call 8-May-2013
  • Date: Thu, 16 May 2013 13:15:02 -0500
  • Authentication-results:; dkim=pass (signature verified)


> PSP Update & Outlook
> Dave is working on PSP, including looking at performance issues. Some
> improvements have been made around change logs.
> The group discussed possible approaches for on-going PSP development. Since
> PSP is based on SPML, optimizations around LDAP operation batching are
> challenging. Integrating PSP more tightly with Grouper could enable greater
> optimizations. An advantage to continuing with the PSP's SMPL approach is
> that it enables the potential to have source and target not related to
> Grouper. Removing SPML from the PSP would require a re-write. Dave noted
> that using the Shib Attribute Resolver in the PSP adds overhead. If PSP
> configuration was not done with the Shib Attribute Resolver, then properties
> files and the expression language could be used. This would require users to
> change their current configuration.

My unsolicited input is that asking PSP users to change their
configuration is not a problem because the configuration is difficult
and error-prone as it currently stands.

> It was noted that the PSP is currently
> easy to configure for people who are familiar with Shib and Spring.

I strongly disagree, having configured

- 50 Shib SPs
- being familiar with Spring
- 3 PSP deployments

I encourage in the strongest possible way the team to rethink PSP


Scott Koranda for LIGO

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