I'm using Firebird 2.5.1.26292 Superserver. The server is running for two weeks and the memory consumption increase daily, but not decrease. I have tested in other enviroment, and all the memory is freed only when all users are disconnected. For know, using Process Explorer from sysinternals, 1326148K of private bytes and 1145716K of Working set, but everyday is increasing between 50 and 100Mb.

After two weeks working, today i have started to have this problem (Operating system call _beginthreadex failed. Error code 8), and i have read that is a problem of memory with server that can not allocate more than 2 Gb. This is because day by day the memory consumption increase, more and more.

If i disconnect all users, fbserver only uses 8 Mb RAM, all memory is released right and start by a memory consumption low, between 200 and 300 Mb, but day by day it increses the momory usage.

I have sent emails attached, with several selects from mon$*, but Alexander Peshkov, can't help anymore because he work only with posix builds. This database structure is used in Firebird 1.0 and Interbase 7-2009 for years without problem.

I only use in my app one UDF and this is the code:

unit UDFMath;

interface

function UDF_power( var Base, Exponent: Double ): double; cdecl; export;
function UDF_sqrt( var Value: double ): double; cdecl; export;

implementation

uses Math;

function UDF_power(var Base, Exponent: Double): double; cdecl;
begin
   try
      Result := power( Base, Exponent );
   except
      Result := 0;
   end;
end;

function UDF_sqrt( var Value: double ): double; cdecl;
begin
   try
      Result := sqrt( Value );
   except
      Result := 0;
   end;
end;

initialization
   IsMultiThread := True;

end.