[Gluster-users] AFR replication/healing question

[Krishna Srinivas]

Roland,

The document you mentioned is not valid anymore for 1.4 AFR. Vikas
will soon post the new document. That will answer your questions.
Your questions were infact not addressed in 1.3 but 1.4 takes care of
those issues.

Krishna

On Sat, Oct 11, 2008 at 3:34 PM,  <devzero at web.de> wrote:
> hello !
>
> i have a question regarding AFR:
>
> when AFR changes trusted.glusterfs.version  only on close() - how does glusterfs behave regarding re-sync if files are still open?
>
> let`s say, i put some mysql database on a glusterfs with AFR - now that database is online and one glusterfs node goes down - how can i make sure that data is resynced when the failed node comes up again (as mysql probably never closes the file descriptor to the datafiles and thus ).
>
> does AFR check for file`s mtime ?
>
> does only open() trigger the resync ?
>
> what happens if a resync is being triggered and while in resync, data is being written to that file ?
>
> the docs at http://www.gluster.org/docs/index.php/Understanding_AFR_Translator don`t tell about this in depth - so i`m just a little bit unsure how files getting synced if they typically never being opened or closed at runtime.
>
> regards
> roland
>
>
>
>
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