Solved

Disabling Shared Memory - SQL Native Client Configuration

Posted on 2009-04-14
2
1,565 Views
Last Modified: 2012-08-14
We have 5 front end Windows Server 2003 servers connecting to a Dell R900 server with 24 cores. All machines are 64 bit operating systems.   We have started seeing this error:

---> System.Data.SqlClient.SqlException: 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 have read many articles saying that we should disable Shared Memory in the SQL Native Client Configuration, and set the order of the TCP/IP client protocol to 1.

By disabling Shared Memory - what effect will this setting have on our current web applications?  If we are connecting to SQL Server using the SQL machine name, will we be affected?  I want to make sure our applications do not break.  

Isn't Shared Memory only used if a connection to SQL is made locally?
0
Comment
Question by:JWeb Admin
2 Comments
 
LVL 25

Accepted Solution

by:
reb73 earned 500 total points
ID: 24140921
AFAIK, shared memory protocol (if enabled) is used when connecting locally using (local) or . as the servername prefix
(e.g. (local) or (local)\namedinstance ) and should provide the fastest connection to the backend. This is done bypassing the network stack and using an in-memory pipe for direct communication.

If you are connecting from a webserver, there is no way shared memory protocol can be used, so disabling shared memory is unlikely to change anything in terms of remote connections.

Have a look at the link below to see if that helps in terms of resolving the error -

http://social.msdn.microsoft.com/forums/en-US/sqlnetfx/thread/4895d56b-716f-4f82-860f-0aa161d327cc/
0
 

Author Closing Comment

by:JWeb Admin
ID: 31570027
Thanks!
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When writing XML code a very difficult part is when we like to remove all the elements or attributes from the XML that have no data. I would like to share a set of recursive MSSQL stored procedures that I have made to remove those elements from …
In SQL Server, when rows are selected from a table, does it retrieve data in the order in which it is inserted?  Many believe this is the case. Let us try to examine for ourselves with an example. To get started, use the following script, wh…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

829 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question