Hi Ann,
XP SP2 has some built in limit on IP connection, no registry setting can
help:
http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2netwk.mspx#E5AAE
this link can help:
http://www.mydigitallife.info/2005/11/15/windows-xp-sp2-tcp-connection-limit-event-id-4226/
Regards,
Marco Kregar
""Ann W. Harrison"" <aharrison@...> ha scritto nel messaggio
news:453E8D49.6070602@......
> Jonathan Primeau wrote:
>
>>
>> In the first scenario, I noticed that I'm getting problems when the
>> client application is dealing with more than 63 concurrent connections.
>
> Searching the list for "concurrent connections" and "Windows" turned up
> this from Helen... Subject "Maximum number of sockets", date 11/23/2005
>
>
> At 09:55 PM 23/11/2005 +0000, you wrote:
> > >Hi,
> > >
> > >I am able to create only 63 concurrent connections to database. When I
> > >try to create another connection, I get this error in firebird.log:
> > >
> > >HOMEPC (Server) Wed Nov 23 21:46:37 2005
> > > INET/select_wait: select failed, errno = 0
> > >
> > >HOMEPC (Server) Wed Nov 23 21:46:37 2005
> > > SRVR_multi_thread/RECEIVE: error on main_port, shutting down
> > >
> > >and firebird freezes. I have to restart Firebird Server service.
> > >Is there really so low limit of concurrent connections? Can I increase
> > >it?
> > >I tried this test on W98, WXP, W2003 with FB 1.0, 1.5, 2.0, with the
> > >same result.
>
> It's a Windows Registry setting that you have to configure by editing the
> registry (yea, Microsoft, don't tell 'em anything they don't need to
> know!)
>
> The key is
> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters.
> You'll probably have to add the key if you have never configured TCP/IP
> manually before.
>
>
> TcpNumConnections
> Key: Tcpip\Parameters
> Value Type: REG_DWORD - Number
> Valid Range: 0 - 0xfffffe
> Default: 0xfffffe
> Description: This parameter limits the maximum number of connections that
> TCP can have open at the same time.
>
> To pre-empt the next TCP/IP configuration problem you encounter, grab this
> MS support document:
>
> http://support.microsoft.com/default.aspx?scid=kb;en-us;314053
>
> ./helen
>
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