Comments on: Steps taken during a PowerPivot data refresh http://powerpivotgeek.com/2009/11/12/steps-taken-during-a-powerpivot-data-refresh/ An adventure in managed self-service computing Wed, 10 Mar 2010 09:48:51 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: Наиболее интересные записи по теме Microsoft BI в блогах за ноябрь 2009 « Microsoft Business Intelligence http://powerpivotgeek.com/2009/11/12/steps-taken-during-a-powerpivot-data-refresh/comment-page-1/#comment-43 Наиболее интересные записи по теме Microsoft BI в блогах за ноябрь 2009 « Microsoft Business Intelligence Tue, 01 Dec 2009 11:57:55 +0000 http://powerpivotgeek.com/?p=177#comment-43 [...] Dave Wickert. Steps taken during a PowerPivot data refresh [...] [...] Dave Wickert. Steps taken during a PowerPivot data refresh [...]

]]> By: Steps taken during a #PowerPivot data refresh « PowerPivot Twins! http://powerpivotgeek.com/2009/11/12/steps-taken-during-a-powerpivot-data-refresh/comment-page-1/#comment-10 Steps taken during a #PowerPivot data refresh « PowerPivot Twins! Wed, 18 Nov 2009 03:35:38 +0000 http://powerpivotgeek.com/?p=177#comment-10 [...] Read more… [...] [...] Read more… [...]

]]> By: powerpivotgeek http://powerpivotgeek.com/2009/11/12/steps-taken-during-a-powerpivot-data-refresh/comment-page-1/#comment-8 powerpivotgeek Sun, 15 Nov 2009 23:07:03 +0000 http://powerpivotgeek.com/?p=177#comment-8 >> "Is this going to work the same in 2010?" If by "2010", you means "SharePoint 2010" then the answer is "Yes" and "No". SP has implemented a new claims system based on the Geneva Framework. This means that you don't need Kerberos *within* the farm; nor do you need Kerberos to talk to PowerPivot. However, since the backend Windows token that the claims system gives Excel Services (or others) is an Identity token, it means that Kerberos is still needed to talk to normal data sources, e.g. refreshing data in a workbook coming from SQL RDBMS; or SQL SSAS servers. Kerberos isn't needed w/ PowerPivot because we support the claims based system natively like other SharePoint services. >> “Is this going to work the same in 2010?”

If by “2010″, you means “SharePoint 2010″ then the answer is “Yes” and “No”. SP has implemented a new claims system based on the Geneva Framework. This means that you don’t need Kerberos *within* the farm; nor do you need Kerberos to talk to PowerPivot. However, since the backend Windows token that the claims system gives Excel Services (or others) is an Identity token, it means that Kerberos is still needed to talk to normal data sources, e.g. refreshing data in a workbook coming from SQL RDBMS; or SQL SSAS servers. Kerberos isn’t needed w/ PowerPivot because we support the claims based system natively like other SharePoint services.

]]> By: powerpivotgeek http://powerpivotgeek.com/2009/11/12/steps-taken-during-a-powerpivot-data-refresh/comment-page-1/#comment-7 powerpivotgeek Sun, 15 Nov 2009 22:58:33 +0000 http://powerpivotgeek.com/?p=177#comment-7 I agree, but we aren't using Kerberos. This is regular NTLM. The data refresh facilities does a true Win32 logon using the uid/pwd provided in the schedule. You are right, I should have been more technically accurate by saying 'logon' instead of 'impersonation'. Sorry. After the logon, then you get one hop from your AS machine to your data source. The only time we need Kerberos is if an additional hop is needed, e.g. you are querying against a data source that is really a linked server to a 3rd machine. BTW: Keep up the dialog . . . it is cool that folks are actually reading this stuff :-) Thanks. I agree, but we aren’t using Kerberos. This is regular NTLM. The data refresh facilities does a true Win32 logon using the uid/pwd provided in the schedule. You are right, I should have been more technically accurate by saying ‘logon’ instead of ‘impersonation’. Sorry.

After the logon, then you get one hop from your AS machine to your data source. The only time we need Kerberos is if an additional hop is needed, e.g. you are querying against a data source that is really a linked server to a 3rd machine.

BTW: Keep up the dialog . . . it is cool that folks are actually reading this stuff :-)
Thanks.

]]> By: Kasper de Jonge http://powerpivotgeek.com/2009/11/12/steps-taken-during-a-powerpivot-data-refresh/comment-page-1/#comment-6 Kasper de Jonge Sun, 15 Nov 2009 18:54:45 +0000 http://powerpivotgeek.com/?p=177#comment-6 Hi Dave, Thx for the great post, great to have read this stuff beforehand. But when i see all these impersonation steps i get a little nervous having seen too much kerberos issues with MOSS 2007 and SSAS/SSRS. Is this going to work the same in 2010? Thanks, Kasper de Jonge Hi Dave,

Thx for the great post, great to have read this stuff beforehand. But when i see all these impersonation steps i get a little nervous having seen too much kerberos issues with MOSS 2007 and SSAS/SSRS. Is this going to work the same in 2010?

Thanks,
Kasper de Jonge

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