Is there really a 1024 limit on connections built
into the server?

-------- Original Message --------
Subject: Re: [firebird-support] Max. number of connections
Date: Fri, 18 Sep 2009 11:25:10 +0300
From: Vlad Khorsun <hvlad@...>
Reply-To: firebird-support@yahoogroups.com
To: <firebird-support@yahoogroups.com>
References: <W34468118226931253003787@...-ops.be>
<4AAF5808.3060905@...>

>> max. number of connections latest releases of Firebird can handle ?

There is no built-in limit in the engine. Only practical one - amount
of memory.

> SuperServer has hardcoded limit in 1024 connections. Other
> architectures are limited by OS TCP/IP stack. To get more you must use
> clustering.

This is not true. I've established 5000 conections using XNET and
64-bit
build of Firebird. INET have internal limit of 1024 sockets, yes, but
this is not engine's limit. WNET limited by 255 pipe instances. XNET
have no limit.

Note, 32-bit build of FB SS on windows will reach its limit of 2GB of
virtual address space near after 840 connections.

Regards,
Vlad


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