Re: [Moosefs-users] Append and seek while writing functionality

[Stas O. <sta...@gm...>]

Hi.

Thanks for the explanation.

So this covers appending, but can a write operation to file pause, jump to
file start for example, and update some data?

Regards.

2010/6/14 Michał Borychowski <mic...@ge...>

>  MooseFS fully supports appending to a file and writing to any position of
> a file. It also supports creating sparse files.
>
>
>
> Two independent processes / machines may write in parallel to the same file
> at different positions. If two positions are located in different chunks
> (pos1 / 64Mi != pos2 / 64Mi) the writing process would be run at normal
> speed; if two positions are in the same chunk you can expect a substantial
> loss of writing speed (due to chunk lock for writing).
>
>
>
>
>
> Kind regards
>
> Michał Borychowski
>
> MooseFS Support Manager
>
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
>
> Gemius S.A.
>
> ul. Wołoska 7, 02-672 Warszawa
>
> Budynek MARS, klatka D
>
> Tel.: +4822 874-41-00
>
> Fax : +4822 874-41-01
>
>
>
>
>
>
>
> *From:* Stas Oskin [mailto:sta...@gm...]
> *Sent:* Thursday, June 10, 2010 2:13 PM
> *To:* moo...@li...
> *Cc:* MooseFS
> *Subject:* [Moosefs-users] Append and seek while writing functionality
>
>
>
> Hi.
>
> Does MooseFS supports append functionality?
>
> Also, does it support the ability to seek file being it's being written and
> write data in other place (like regular file system)?
>
> Thanks!
>