[Gluster-users] gfid generation

[Kaushal M]

On Tue, Nov 15, 2016 at 11:33 PM, Ankireddypalle Reddy
<areddy at commvault.com> wrote:
> Pranith,
>
>                  Thanks for getting back on this. I am trying to see how
> gfid can be generated programmatically. Given a file name how do we generate
> gfid for it. I was reading some of the email threads about it where it was
> mentioned that gfid is generated based upon parent directory gfid and the
> file name. Given a same parent gfid and file name do we always end up with
> the same gfid.

You're probably confusing the hash as generated for the elastic hash
algorithm in DHT, with UUID. That is a combination of

I always thought that the GFID was a UUID, which was randomly
generated. (The random UUID might be being modified a little to allow
some leeway with directory listing, IIRC).

Adding gluster-devel to get more eyes on this.

>
>
>
> Thanks and Regards,
>
> ram
>
>
>
> From: Pranith Kumar Karampuri [mailto:pkarampu at redhat.com]
> Sent: Tuesday, November 15, 2016 12:58 PM
> To: Ankireddypalle Reddy
> Cc: gluster-users at gluster.org
> Subject: Re: [Gluster-users] gfid generation
>
>
>
> Sorry, didn't understand the question. Are you saying give a file on gluster
> how to get gfid of the file?
>
> #getfattr -d -m. -e hex /path/to/file shows it
>
>
>
> On Fri, Nov 11, 2016 at 9:47 PM, Ankireddypalle Reddy <areddy at commvault.com>
> wrote:
>
> Hi,
>
>         Is the mapping from file name to gfid an idempotent operation.  If
> so please point me to the function that does this.
>
>
>
> Thanks and Regards,
>
> Ram
>
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> --
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> Pranith
>
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