Re: [Moosefs-users] speed up balancing

[Thomas S H. <tha...@gm...>]

Thanks Anh, I should have specified that we had already made those changes
to the configs

But I had no idea that you could just copy the chunks over, but now that I
think about the architecture of MooseFS, that makes perfect sense!

-Thanks

2011/3/8 Michal Borychowski <mic...@ge...>

> Hi!
>
>
>
> Absolutely the fastest way would be (for each chunkserver):
>
> 1.       Stop the chunkserver X
>
> 2.       Copy (just using ‘cp’) all files from the old disks to the new
> ones
>
> 3.       Run the chunkserver X using the new disks (of course the
> chunkserver may now run on a new mainboard, etc.)
>
>
>
> The standard method would be connecting new CSs along with the old ones
> (perfectly all in the same moment) and marking all the old disks for
> removal. Then you have to wait until system migrates chunks to the new
> servers. But it would take several days.
>
>
>
>
>
> Kind regards
>
> Michal
>
>
>
>
>
> *From:* Thomas S Hatch [mailto:tha...@gm...]
> *Sent:* Friday, March 04, 2011 6:43 PM
> *To:* moosefs-users
> *Subject:* [Moosefs-users] speed up balancing
>
>
>
> I am currently migrating my moosefs environment into a new setup, new OS,
> new partitioning, changing out disks for larger disks etc.
>
>
>
> So I need to be able to take a chunkserver down, delete the chunks on it,
> and then have it rebalance as quickly as possible back into the overall
> moosefs cluster, what is the fastest way to do this? Should I make the
> chunks for removal before taking them offline? Will that speed up the
> balancing?
>
>
>
> -Thomas S Hatch
>