On April 25, 2020 9:00:30 AM GMT+03:00, David Cunningham <dcunningham@xxxxxxxxxxxxx> wrote: >Hi Ravi, > >Thank you for the reply, and yes they are replica volumes. Is it >possible >to improve performance by the client only accessing its configured >server >for reads, or would the difference be negligible? > > >On Fri, 24 Apr 2020 at 18:46, Ravishankar N <ravishankar@xxxxxxxxxx> >wrote: > >> >> On 24/04/20 11:42 am, David Cunningham wrote: >> >> Hello, >> >> My understanding is that GlusterFS checks with all nodes when >performing a >> read. Is it possible to just get the data from the node directly >being >> accessed (in our case using the GlusterFS client), without consulting >with >> the other nodes? >> >> Our application requires the GFS file to be available, but it's >actually >> not critical if we end up with an old version of the file in the case >of a >> server down or net-split etc. Significantly improved read performance >would >> be desirable instead. >> >> I assume you are talking about replica volumes, in which case the >read >> does happen from only one of the replica bricks. The client only >sends >> lookups to all the bricks to figure out which are the good copies. >Post >> that, the reads themselves are served from only one of the good >copies. >> >> -Ravi >> >> >> Thanks in advance for any help. >> >> -- >> David Cunningham, Voisonics Limited >> http://voisonics.com/ >> USA: +1 213 221 1092 >> New Zealand: +64 (0)28 2558 3782 >> >> ________ >> >> >> >> Community Meeting Calendar: >> >> Schedule - >> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC >> Bridge: https://bluejeans.com/441850968 >> >> Gluster-users mailing >listGluster-users@gluster.orghttps://lists.gluster.org/mailman/listinfo/gluster-users >> >> Hey David, There is a cluster.choose-local (I think it was 'cluster , but I could be wrong) option that allows a node to read locally - in my case I'm using it cause my network is slower than my NVMe so reads over the network are slow. Best Regards, Strahil Nikolov ________ Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://bluejeans.com/441850968 Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users
