Re: [Moosefs-users] Chunks replication : preference to "rebalance" instead of goaling

[Florent B. <fl...@co...>]

Nice ok :-) Thank you for your answer Michal!

On 2012-04-29 07:37, Michał Borychowski wrote:
> Hi Florent!
>
> We are aware of this behaviour and it is on our "todo" list to be 
> improved.
>
> Regards
> Michał
> MooseFS Support Manager
>
>
> -----Original Message-----
> From: Florent Bautista [mailto:fl...@co...]
> Sent: Saturday, April 28, 2012 1:17 PM
> To: moo...@li...
> Subject: [Moosefs-users] Chunks replication : preference to 
> "rebalance"
> instead of goaling
>
> Hi all,
>
> It seems that on my MooseFS installation, the master server prefers 
> to
> rebalance over CS chunks with goal satisfied, instead of taking care 
> of
> chunks in undergoal situation.
>
> I added a CS recently, and after a master restart, some chunks have 
> only 1
> valid copy (goal 2 or 3), and it stays like that for a few minutes
> (undergoal chunks are decreasing very slowly). During this time, some 
> chunks
> where rebalanced over CS (I see that because some chunks are getting
> overgoal, then deleted, etc...).
>
> Is it possible to set a more important priority on chunks that are 
> undergoal
> ? And only then rebalancing the others. It's very dangerous because 
> some
> files could have only one valid copy during hours...
>
> I'm on 1.6.24, with 4 CS and 1 ML. Debian Squeeze for all, except the 
> last
> added CS on FreeBSD.
>
> My config is the default one except:
>
> CHUNKS_WRITE_REP_LIMIT = 3
> CHUNKS_READ_REP_LIMIT = 10
>
> Thank you for help :)
>
> Flo
>
> 
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