You can try upgrade to 2.1.4 snapshot, this have many bugfixed.

2010/7/10 HR <flashjobs@...>

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>
>
> Dear All,
>
> Here i am looking solution for my firebird 2.1.3 database application.
> Once in a day server is getting hang. once we restart firebird service
> everything works fine. Here i came to know that i might be a problem with
> momory allocation or something. It happens after a period of time, might be
> when memory becomes full. My database size is around 2GB. My server has 8GB
> ram. I have tried configuring DefaultDbCachePages to 4096. But still the
> problem continues. There are around 120 concurrent users on my application.
>
> Anyone can help me please.
>
>
>

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