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 A transport-level error has occurred when sending

Author  Topic 

raysefo
Constraint Violating Yak Guru

260 Posts

Posted - 2013-05-23 : 04:50:03
Hi,

I have a web app which runs almost 3 years without getting this error. But last 3 days I am getting this error frequently:

System.Data.SqlClient.SqlException (0x80131904): A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.)
I checked my open SQL connections on the source code, they seem OK. By the way I am using SQL Server 2008 r2. When I run this query below:

select * from sys.dm_exec_sessions
I get 143 records but they are NOT related with my web applicaitons. There are 5-6 other applications running on the web server. I wonder what may cause this error? Any ideas?

Best Regards.

chadmat
The Chadinator

1974 Posts

Posted - 2013-05-23 : 12:04:27
Is SQL on a cluster? I typically see this when I am connected to SQL and the instance fails over, and then I execute a query.

-Chad
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