Re: [opendbx] /dev/urandom file descritpors left open

[Norbert S. <no...@li...>]

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Hi Adam

> We are using OpenDbx (C++) with MSSQL, on Ubuntu 12.04. Our 
> application is long running with many calls to the database. Our 
> application uses a local OpenDBX::Conn object to connect (bind), 
> retrieve result, finish results, unbind and then the local 
> OpenDBX::Conn object goes out of scope when function returns.
> 
> After a period of time our program crashes, with the usual error 
> being "too many open files". Our process open file limit is the 
> default 1024. After some debugging we found that a file descriptor
> to /dev/urandom is left open for each connection we made to the
> data base. Of course after roughly 1024 connections to the database
> the application crashes with the above error as would be expected.

/dev/urandom is not used by OpenDBX directly but I think by FreeTDS if
you are using the MSSQL backend.

> Has anyone experienced this? Is there a workaround or patch? Are
> we using the library correctly?

Can you please have a look if you call Conn::unbind() and
Conn::finish() before the objects go out of scope? This is important
as the cleanup can't be done by the destructor of the class.


Norbert

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