reiserfs, ext2, ext3, etc, etc all blow up eventually, although at differnet
capacities.
Therefore simply changing from ext3 to reiserfs is, IMHO, a total band-aide
since it too has
limitations.
Hashing hundreds-of-thousands of directories seems to be to only real
alternative to keeping the
"linux file system" from blowing up.
Regards,
Paul
--- Adam Goryachev <[EMAIL PROTECTED]> wrote:
> On Thu, 2004-11-25 at 16:22, Java Rockx wrote:
> > Can anyone tell me how difficult it would be to change the way asterisk
> > stores/retrieves user
> > messages as follows?
> >
> > Currently mailboxes are in
> > /var/spool/asterisk/voicemail/{context}
> >
> > But I need to store messages in a hash to limit the number of directories
> > per context. All
> mailbox
> > extensions are the user's 10-digit phone number (aka, DID). The parts of a
> > DID are as follows
> > So my hashing would look like this
> >
> > /var/spool/asterisk/voicemail/{context}/{npa}/{nxx}/{line}
> >
> > And in the {line} directory we would have the usual Asterisk
> > files/directories for inbox, etc.
> >
> > We're looking at a large number of mailboxes and this would give us a
> > maximum of 10000
> mailboxes
> > per directory - which plays nice with the Linux file system.
>
> You might look at alternative filesystem formats. "Linux file system" is
> not any file system I've heard of. Most likely you are referring to the
> filesystem that you get by default when you do an install and just click
> next without understanding the option each step of the way.
> Specifically, look at reiserfs, it is very good at handling directories
> with large number of files, as frequantly seen in mail servers using
> maildir format etc...
>
> I'm not sure I understand all the details, but reiserfs should be
> equivalent in speed to a DB.... at least, I've frequantly seen it
> referred to in that way back when I used to subscribe to their mailing
> list.
>
> I suppose you might ask the question, is it faster to parse the mailbox
> name in userspace and then look up the correct file, or let the kernel
> parse the name, and find the file for you....
>
> Hope this helps you...
>
> Regards,
> Adam
>
>
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