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usp_Case_DoDel;1 SQL IO maxing out disk access

Updated: 21 May 2010 | 5 comments
jason.lucy@iowa.gov's picture
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This issue has been solved. See solution.

Please help.  usp_Case_DoDel;1 SQL IO is maxed out.

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jason.lucy@iowa.gov's picture
14
Sep
2009
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We keep getting a request

We keep getting a request with the same string in the WHERE clause:
SELECT ArchivePointId,ArchivePointIdentity,ArchivedItems,ArchivedItemsSize,
CreatedDate,HighestIndexSeqNo,IndexAddsPending,IndexDeletesPending,ModifiedDate
FROM ArchivePoint
WHERE ArchivePointId = '1AB24D6D22E0E5246AC391ED2C65CEC561110000dhsv'
 
Also the same string is in requests like this:
 
exec GetArchive N'1AB24D6D22E0E5246AC391ED2C65CEC561110000dhsv'
Scanner001's picture
14
Sep
2009
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 Is this the DISK IO is maxed

 Is this the DISK IO is maxed out?

Paul Grimshaw's picture
14
Sep
2009
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This SP is called when a case

This SP is called when a case has been deleted and can take a long time to run and is dependant on the number of items, searched and production runs in that case. You can see which case it is by running

SELECT     tblCase.CaseID, tblCase.Name, tblCase.ModifiedDate, tblCase.StatusID, tblCase.MarkedForDeletion, tblCase.DeletedByPrincipalID, tblPrincipal.PrincipalName
FROM         tblCase LEFT OUTER JOIN
                      tblPrincipal ON tblCase.DeletedByPrincipalID = tblPrincipal.PrincipalID
WHERE     (tblCase.StatusID = 20) AND (tblCase.MarkedForDeletion = 1)
 

So what are you saying the problem is exactly?
What version of Accelerator are you using?
Do you see any deaadlocks in SQL?

EV Backline Technical Support Engineer APJ Region

jason.lucy@iowa.gov's picture
15
Sep
2009
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The problem was that our

The problem was that our Discovery server was using up 100% of disk time on our SQL server.  After I stopped the Discovery services and the disk time drops off.

We are using 7.5 SP2

We were seeing deadlocks but I'll have to check for current locks.

We are also seeing empty SID fields .

jason.lucy@iowa.gov's picture
21
Sep
2009
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resolved

Not that there was a clear resolution, but here are a few things that we had to do.

In DA we lowered the chunks.  The SQL I/O was still at 100% disk util, however, it may have helped as the DELETE did complete and our SQL, DA, and EV servers are back to normal operation.