Re: Netstat TIME_WAIT on SQL Server Connections

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance



Hi

Connection Pooling on the Client MDAC stack. By default the SQL Driver will
keep the connection open for 120 seconds after a "close" has been issued. If
another request comes along and it uses the same credentials to the same
server, it does not have to re-setup the TCP/IP connection. Instead it puts
it on the connection that has been around the longest in the TIME_WAIT
state.

Regards
--------------------------------
Mike Epprecht, Microsoft SQL Server MVP
Zurich, Switzerland

IM: mike@xxxxxxxxxxxx

MVP Program: http://www.microsoft.com/mvp

Blog: http://www.msmvps.com/epprecht/

"Jesse" <nospam@xxxxxxxx> wrote in message
news:u9T48m3OFHA.1176@xxxxxxxxxxxxxxxxxxxxxxx
> If I understand correctly, the TIME_WAIT Status when you do a NETSTAT on
> the server indicates that the connection has been closed, and it is
> waiting to clear. Is that right? If so, we have a lot of SQL Server
> connections that are in TIME_WAIT status mode. We may have well over 100
> or so of these, and they do not clear out very fast. Why would they stick
> around like that, and how do I get them to clear out sooner? Could they
> potentially be causing problems by not clearing out?
>
> Thanks,
> Jesse
>


.



Relevant Pages

  • Re: SQL Resets
    ... If it were SQL that was falling short, ... The default backlog for SQL Server is 5. ... System.InvalidOperationException: Internal connection fatal error. ... From time to time, under heavy loads, we are getting resets at ...
    (microsoft.public.sqlserver.connect)
  • Re: provider: Named Pipes Provider, error: 40 - Could not open a c
    ... I have tried connecting to Sql Management Studio and it worked pretty much ... An error has occurred while establishing a connection to the server. ... under the default settings SQL Server does not allow remote connections. ... I have a sql server install / database on the web server. ...
    (microsoft.public.sqlserver.connect)
  • .Net framework error
    ... Unfortunately the information is very limited and usually the report just ... The application is a front end for a SQL Server 2005 Express database, ... connection string in the app config file. ...
    (microsoft.public.dotnet.languages.vb)
  • Re: connect to named instance w/ non-default port
    ... SQL Native Client Configuration. ... An error has occurred while establishing a connection to the server. ... under the default settings SQL Server does not allow remote connections. ...
    (microsoft.public.sqlserver.connect)
  • Re: Concurrent database access in SQL 2005 Mobile
    ... Please stick to having an "dummy" connection in Open State. ... SQL CE/Mobile has a background thread that flushes the changes ... they run for long hours and we have not seen memory leaks so far. ... then opens his work forms and it's in ...
    (microsoft.public.sqlserver.ce)