Re: Ext3 File System "Too many files" with snort

[Hans Reiser]

jmerkey@xxxxxxxxxxx wrote:

> > jmerkey@xxxxxxxxxxx writes:
> >
> >    
> >
> > > I may alter the on disk structures to increase this to something larger, say 
> > >      
> > 16,000,000,
> >    
> >
> > > which would break ext3 on other systems.  I will look at the code for this 
> > >      
> to 
>  
>
> > see if this is 
> >    
> >
> > > even possible without the FS meta data growing so huge, it renders 
> > >      
> performance 
>  
>
> > poor.
> >    
> >
> > > These types of limits should probably be done away with with an 
> > >      
> architectural 
>  
>
> > change, 
> >
> > It's not only ext3 - one reason this limit is there because
> > in the old stat st_nlink was 16bit only. Now that stat64 is there
> > and glibc uses it by default it could be increased to 32bit, 
> > but you would need to think what to do with old applications that 
> > stat the directory. For files >2GB old stat returns an errno, 
> > maybe this would need to be done for such directories too.
> >
> >    
>
> Andi,  
>
> Sounds like this is correct.    I will look at statfs().  I am very familiar 
> with this section of linux 
> with the VFS.  We should make this value 32 bit.  One solution would be to 
> instrument a 
> versioning field in the superblock so we can write the smarts into ext3/2/reiser  
> to handle
> different on-disk structures.  when a supoerblock gets read, it could detect 
> waht type of 
> on disk structures are instrumented.  
>  
Just use reiser4 which has disk format plugins.  reiserfs v3 should stay 
stable and undisturbed.

> Jeff  
>  
>
> > -Andi
> >
> >    
> -
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