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 ODBC SQL Server Driver]Timeout expired
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kshahzad
Starting Member

45 Posts

Posted - 07/31/2013 :  16:14:43  Show Profile  Reply with Quote
I have over 200 concurrent users as average,

Couple of times a week for 5 minutes connections time out,

and i see this information in a Error Tracking table in one of the columns like this

: [Microsoft][ODBC SQL Server Driver]Timeout expired

and then it automatically starts working fine

Any sugestions

tkizer
Almighty SQL Goddess

USA
36953 Posts

Posted - 07/31/2013 :  17:59:42  Show Profile  Visit tkizer's Homepage  Reply with Quote
You'll need to determine what the culprit is. Is it blocking? Missing indexes? Hardware bottleneck? Stored procedure code issue?

Is it connections timing out or commands timing out? They are two different things.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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kshahzad
Starting Member

45 Posts

Posted - 08/01/2013 :  09:32:26  Show Profile  Reply with Quote
This is connection time out.
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tkizer
Almighty SQL Goddess

USA
36953 Posts

Posted - 08/01/2013 :  11:47:55  Show Profile  Visit tkizer's Homepage  Reply with Quote
I would check two things: Perfmon on the database server to check for bottlenecks such as CPU, the network (have your network admin run a sniffer to see what's going on when this occurs).

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog
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