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Locking while processing a dimension in SSAS2008

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Jesse O

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Oct 26, 2009, 5:18:05 PM10/26/09
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Recently we upgraded to SSAS2008 from SSAS2005, and since that upgrade we've
been experiencing locked files while running a Process Update on a dimension
with Process Affected Objects selected. This doesn't happen when the Process
Affected Objects option is NOT selected. It'll happen several times a day.

From what I understand the dimensional process is attempting to rebuild
aggregations and is failing immediately when it can't get a lock on the
appropriate files. We've experienced this behavior across all databases;
it's just not one.

I've disabled the Flight Recorder, disabled Lazy Processing and the
CommitTimeout is set to 15000. It's a very beefy server, 16 way/64GB of RAM.
The box isn't breaking a sweat.

I'm at a loss...any ideas?

Error within the Management Studio dialog box:
File system error: The following error occurred while opening the file
'\\?\D:\SSAS2008\Data\Distribution Hourly.0.db\Distribution
Info.0.cub\vFact_HourlyInstallSummaryCurrent.0.det\D_20091024.0.prt\5.Date.Year.agg.rigid.map'.
Errors in the OLAP storage engine: An error occurred while processing the
indexes for the D_20091024 partition of the
vFact_HourlyInstallSummaryCurrent measure group of the Distribution Info
cube from the Distribution Hourly database.

Event Viewer Error:
The file '\\?\D:\SSAS2008\Data\Distribution Hourly.0.db\Distribution
Info.0.cub\vFact_HourlyInstallSummaryCurrent.0.det\D_20091024.0.prt\5.Date.Year.agg.rigid.map'
could not be opened. Please check the file for permissions or see if other
applications locked it.

Jesse O

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Nov 6, 2009, 2:01:23 PM11/6/09
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Anyone?

:)

"Jesse O" <jesp...@hotmail.com> wrote in message
news:Oi0TQHoV...@TK2MSFTNGP04.phx.gbl...

Classiarius

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Nov 6, 2009, 5:16:42 PM11/6/09
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On Nov 6, 2:01 pm, "Jesse O" <jespe...@hotmail.com> wrote:
> Anyone?
>
> :)
>
> "Jesse O" <jespe...@hotmail.com> wrote in message

Use the NOLOCK hint on your data source, *if you can*. I've done this
to our data warehouse DB (it's read-only anyway) and SSAS processes
faster w/o the use of needless locks.

Jesse O

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Nov 9, 2009, 5:36:23 PM11/9/09
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It's not a problem from the data source, but rather something internal
within SSAS....

Thank you!

"Classiarius" <class...@gmail.com> wrote in message
news:a00cfdc4-a5db-451f...@k4g2000yqb.googlegroups.com...

Epan

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Jun 15, 2010, 12:12:27 PM6/15/10
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Did you ever find a solution to this problem? I am having the same problem.

Thanks.

url:http://www.ureader.com/msg/11546257.aspx

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