[Gluster-users] Rebalance times in 3.2.5 vs 3.4.2

[Viktor Villafuerte]

Hi Shylesh,

yes the log showing files being processed and eventually the rebalance
completed (with skipped files) but it took much much longer than with
3.2.5 which I tested intially.

v


On Thu 27 Feb 2014 11:09:56, Shylesh Kumar wrote:
> Hi Viktor,
> 
> Lots of optimizations and improvements went in for 3.4 so it should
> be faster than 3.2.
> Just to make sure what's happening could you please check rebalance
> logs which will be in
> /var/log/glusterfs/<volname>-rebalance.log and check is there any progress ?
> 
> Thanks,
> Shylesh
> 
> Viktor Villafuerte wrote:
> >Anybody can confirm/dispute that this is normal/abnormal?
> >
> >v
> >
> >
> >On Tue 25 Feb 2014 15:21:40, Viktor Villafuerte wrote:
> >>Hi all,
> >>
> >>I have distributed replicated set with 2 servers (replicas) and am
> >>trying to add another set of replicas: 1 x (1x1) => 2 x (1x1)
> >>
> >>I have about 23G of data which I copy onto the first replica, check
> >>everything and then add the other set of replicas and eventually
> >>rebalance fix-layout, migrate-data.
> >>
> >>Now on
> >>
> >>Gluster v3.2.5 this took about 30 mins (to rebalance + migrate-data)
> >>
> >>on
> >>
> >>Gluster v3.4.2 this has been running for almost 4 hours and it's still
> >>not finished
> >>
> >>
> >>As I may have to do this in production, where the amount of data is
> >>significantly larger than 23G, I'm looking at about three weeks of wait
> >>to rebalance :)
> >>
> >>Now my question is if this is as it's meant to be? I can see that v3.4.2
> >>gives me more info about the rebalance process etc, but that surely
> >>cannot justify the enormous time difference.
> >>
> >>Is this normal/expected behaviour? If so I will have to stick with the
> >>v3.2.5 as it seems way quicker.
> >>
> >>Please, let me know if there is any 'well known' option/way/secret to
> >>speed the rebalance up on v3.4.2.
> >>
> >>
> >>thanks
> >>
> >>
> >>
> >>-- 
> >>Regards
> >>
> >>Viktor Villafuerte
> >>Optus Internet Engineering
> >>t: 02 808-25265
> >>_______________________________________________
> >>Gluster-users mailing list
> >>Gluster-users at gluster.org
> >>http://supercolony.gluster.org/mailman/listinfo/gluster-users

-- 
Regards

Viktor Villafuerte
Optus Internet Engineering
t: 02 808-25265