[Gluster-users] Rebalance times in 3.2.5 vs 3.4.2

[Viktor Villafuerte]

Also I should add here that I'm doing this on VMs. However the rebalance
with 3.2.5 was done on the same VMs

v


On Thu 27 Feb 2014 17:16:55, Viktor Villafuerte wrote:
> 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
> _______________________________________________
> 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