On Fri, May 5, 2017 at 5:19 PM, Pranith Kumar Karampuri <pkara...@redhat.com > wrote:
> > > On Fri, May 5, 2017 at 2:38 PM, Serkan Çoban <cobanser...@gmail.com> > wrote: > >> It is the over all time, 8TB data disk healed 2x faster in 8+2 >> configuration. >> > > Wow, that is counter intuitive for me. I will need to explore about this > to find out why that could be. Thanks a lot for this feedback! > >From memory I remember you said you have a lot of small files hosted on the volume, right? It could be because of the bug https://review.gluster.org/17151 is fixing. That is the only reason I could guess right now. We will try to test this kind of case if you could give us a bit more details about average file-size/depth of directories etc to simulate similar looking directory structure. > > >> >> On Fri, May 5, 2017 at 10:00 AM, Pranith Kumar Karampuri >> <pkara...@redhat.com> wrote: >> > >> > >> > On Fri, May 5, 2017 at 11:42 AM, Serkan Çoban <cobanser...@gmail.com> >> wrote: >> >> >> >> Healing gets slower as you increase m in m+n configuration. >> >> We are using 16+4 configuration without any problems other then heal >> >> speed. >> >> I tested heal speed with 8+2 and 16+4 on 3.9.0 and see that heals on >> >> 8+2 is faster by 2x. >> > >> > >> > As you increase number of nodes that are participating in an EC set >> number >> > of parallel heals increase. Is the heal speed you saw improved per file >> or >> > the over all time it took to heal the data? >> > >> >> >> >> >> >> >> >> On Fri, May 5, 2017 at 9:04 AM, Ashish Pandey <aspan...@redhat.com> >> wrote: >> >> > >> >> > 8+2 and 8+3 configurations are not the limitation but just >> suggestions. >> >> > You can create 16+3 volume without any issue. >> >> > >> >> > Ashish >> >> > >> >> > ________________________________ >> >> > From: "Alastair Neil" <ajneil.t...@gmail.com> >> >> > To: "gluster-users" <gluster-users@gluster.org> >> >> > Sent: Friday, May 5, 2017 2:23:32 AM >> >> > Subject: [Gluster-users] disperse volume brick counts limits in RHES >> >> > >> >> > >> >> > Hi >> >> > >> >> > we are deploying a large (24node/45brick) cluster and noted that the >> >> > RHES >> >> > guidelines limit the number of data bricks in a disperse set to 8. >> Is >> >> > there >> >> > any reason for this. I am aware that you want this to be a power of >> 2, >> >> > but >> >> > as we have a large number of nodes we were planning on going with >> 16+3. >> >> > Dropping to 8+2 or 8+3 will be a real waste for us. >> >> > >> >> > Thanks, >> >> > >> >> > >> >> > Alastair >> >> > >> >> > >> >> > _______________________________________________ >> >> > Gluster-users mailing list >> >> > Gluster-users@gluster.org >> >> > http://lists.gluster.org/mailman/listinfo/gluster-users >> >> > >> >> > >> >> > _______________________________________________ >> >> > Gluster-users mailing list >> >> > Gluster-users@gluster.org >> >> > http://lists.gluster.org/mailman/listinfo/gluster-users >> >> _______________________________________________ >> >> Gluster-users mailing list >> >> Gluster-users@gluster.org >> >> http://lists.gluster.org/mailman/listinfo/gluster-users >> > >> > >> > >> > >> > -- >> > Pranith >> > > > > -- > Pranith > -- Pranith
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