Re: AFR between two bricks over 3000 miles

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On Thu, Feb 28, 2008 at 11:33 PM,  <nathan@xxxxxxxxxxxx> wrote:
>
>
>  On Thu, 28 Feb 2008, LI Daobing wrote:
>
>  > On Thu, Feb 28, 2008 at 2:07 PM, Anand Avati <avati@xxxxxxxxxxxxx> wrote:
>  >> on the client. you also might want to put this write-behind + io-cache pair
>  >>  in the subvolume path of afr which leads towards the remote site alone. Also
>  >>  make sure afr does not have the remote site as the first subvolume, and has
>  >>  the option read-subvolume <local-volume> so that reads are not scheduled to
>  >>  the remote site.
>  >
>  > in 1.3.8pre1, the order of afr's subvolume should be same among
>  > clients, otherwise there is a race condition on create and other
>  > operations on inode. consider two client are creating a same file at a
>  > same time.
>
>  So then it is not possible to have clients each write to their local part
>  of the AFR since the order needs to be the same?
>

afr need write to every sub volume, so you can't only write to the
local part in any case.

-- 
Best Regards,
 LI Daobing




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