Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC]
2015-Nov-30 16:32 UTC
[Gluster-users] Glusterfs - Translators/Performance
Thank you Vijay for taking the time to reply. What we want is writes to be a bit better than the 10MBps we are seeing but not as important as read which is good at 400MBps. Is it better to store settings in /etc/glusterfs/glusterd.vol (as in the docs) or with "gluster set" (on command line as most posts seem to use)? Does only one of performance/io-threads, performance/io-cache, performance/writebehind translators take effect or are they all in effect? Are they ON by default? We currently only installed gluster client on our clients, which doesn't have the gluster command for settings the properties. Should we install gluster server on our clients also to change gluster client properties? Thank you. Uthra -----Original Message----- From: Vijay Bellur [mailto:vbellur at redhat.com] Sent: Friday, November 27, 2015 7:48 PM To: Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC] Cc: gluster-users at gluster.org Subject: Re: [Gluster-users] Glusterfs - Translators/Performance ----- Original Message -----> From: "Uthra R. Rao (GSFC-672.0)[ADNET SYSTEMS INC]" > <uthra.r.rao at nasa.gov> > To: gluster-users at gluster.org > Sent: Friday, November 27, 2015 1:19:12 PM > Subject: [Gluster-users] Glusterfs - Translators/Performance > > > > I was reading this link and was not sure if these settings go in to > /etc/glusterfs/glusterd.vol? Do I have to just edit this file to add > the setting? > > > > http://www.gluster.org/community/documentation/index.php/Translators/p > erformance > > > > do we have to choose between writebehind, io-threads, io-cache? >By default all gluster volumes have these capabilities built in. What is your workload and what is the nature of performance improvements that you are looking forward to? Thanks, Vijay
On 11/30/2015 08:32 AM, Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC] wrote:> Thank you Vijay for taking the time to reply. > > What we want is writes to be a bit better than the 10MBps we are seeing but not as important as read which is good at 400MBps.That's what results you're looking for, but nothing about the workload.> > Is it better to store settings in /etc/glusterfs/glusterd.vol (as in the docs) or with "gluster set" (on command line as most posts seem to use)?s/docs/wiki pages for the 3.2ish version/> > Does only one of performance/io-threads, performance/io-cache, performance/writebehind translators take effect or are they all in effect? Are they ON by default? > > We currently only installed gluster client on our clients, which doesn't have the gluster command for settings the properties. > Should we install gluster server on our clients also to change gluster client properties?Changes made through the cli (gluster volume set) change the volume configuration state. You can see those state files under /var/lib/glusterd/vols/$volname. The *fuse.vol file is what the client retrieves from the servers at mount time or when there's a change that affects the client.> > Thank you. > Uthra > > > > > > -----Original Message----- > From: Vijay Bellur [mailto:vbellur at redhat.com] > Sent: Friday, November 27, 2015 7:48 PM > To: Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC] > Cc: gluster-users at gluster.org > Subject: Re: [Gluster-users] Glusterfs - Translators/Performance > > > > ----- Original Message ----- >> From: "Uthra R. Rao (GSFC-672.0)[ADNET SYSTEMS INC]" >> <uthra.r.rao at nasa.gov> >> To: gluster-users at gluster.org >> Sent: Friday, November 27, 2015 1:19:12 PM >> Subject: [Gluster-users] Glusterfs - Translators/Performance >> >> >> >> I was reading this link and was not sure if these settings go in to >> /etc/glusterfs/glusterd.vol? Do I have to just edit this file to add >> the setting? >> >> >> >> http://www.gluster.org/community/documentation/index.php/Translators/p >> erformance >> >> >> >> do we have to choose between writebehind, io-threads, io-cache? >> > > By default all gluster volumes have these capabilities built in. What is your workload and what is the nature of performance improvements that you are looking forward to? > > Thanks, > Vijay > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users
----- Original Message -----> From: "Uthra R. Rao (GSFC-672.0)[ADNET SYSTEMS INC]" <uthra.r.rao at nasa.gov> > To: "Vijay Bellur" <vbellur at redhat.com> > Cc: gluster-users at gluster.org > Sent: Monday, November 30, 2015 11:32:33 AM > Subject: RE: [Gluster-users] Glusterfs - Translators/Performance > > Thank you Vijay for taking the time to reply. > > What we want is writes to be a bit better than the 10MBps we are seeing but > not as important as read which is good at 400MBps. > > Is it better to store settings in /etc/glusterfs/glusterd.vol (as in the > docs) or with "gluster set" (on command line as most posts seem to use)?sesettings in /etc/glusterfs/glusterd.vol are meant for the management daemon i.e. glusterd. All tuning needed for volume services would need to be done through the "gluster volume set" interface.> > Does only one of performance/io-threads, performance/io-cache, > performance/writebehind translators take effect or are they all in effect? > Are they ON by default? >Yes, all these translators are ON by default.> We currently only installed gluster client on our clients, which doesn't have > the gluster command for settings the properties. > Should we install gluster server on our clients also to change gluster client > properties? >gluster client properties cannot be set per client through "volume set" CLI. The properties altered through "volume set" are applicable to all clients by default. Per client behavior can be altered at the time of mounting a gluster volume. Regards, Vijay