--_000_D188D7F1CAE1soerenmalchowmconnet_ Content-Type: text/plain; charset="windows-1251" Content-Transfer-Encoding: quoted-printable Hi, This is strictly speaking a gluster issue, not an ovirt issue, however, fir= st of all, it does take very long to resync, that is normal, second, we hav= e vey good experiences so far in tuning a few of the parameters in gluster These are the ones (at least partly) we modified cluster.data-self-heal-algorithm diff cluster.background-self-heal-count 16 performance.io-thread-count 32 performance.high-prio-threads 24 performance.normal-prio-threads 24 performance.low-prio-threads 16 performance.least-prio-threads 4 Check #> gluster colume get VOLUMENAME all For more And even after optimization it will still take very long Regards Soeren From: =DE=F0=E8=E9 =CF=EE=EB=F2=EE=F0=E0=F6=EA=E8=E9 <y.poltoratskiy@gmail.= com<mailto:y.poltoratskiy@gmail.com>> Date: Monday 25 May 2015 12:46 To: "users@ovirt.org<mailto:users@ovirt.org>" <users@ovirt.org<mailto:users= @ovirt.org>> Subject: [ovirt-users] glusterfs takes a long time to syncing after host ha= s been rebooted Hi. I am testing oVirt 3.5.2 with 3 hosts (Dell R210). Storage type is GlusterF= S (replicate 3): each host has a single 3TB HDD. When I put one host into m= aintence mode, then reboot it and after system has been started, the gluste= rfsd proccess takes a long time (more then hours with gigabyte network) to = syncing. It seems to be reload all data instead of download only changes . = I have several VMs, but only one VM was running (postfix relay) at that mom= ent, so there were no lots of changes on gluster volume. I've googled for this issue without success. Is it normal situation? Or what can I do to resolve the problem? I can prov= ide any additional info. Thanks. --_000_D188D7F1CAE1soerenmalchowmconnet_ Content-Type: text/html; charset="windows-1251" Content-ID: <0984B64D6ACCCA458A605AF18F4B9F27@liquidcampaign.com> Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dwindows-1= 251"> </head> <body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin= e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami= ly: Calibri, sans-serif;"> <div>Hi,</div> <div><br> </div> <div>This is strictly speaking a gluster issue, not an ovirt issue, however= , first of all, it does take very long to resync, that is normal, second, w= e have vey good experiences so far in tuning a few of the parameters in glu= ster</div> <div><br> </div> <div>These are the ones (at least partly) we modified</div> <div><br> </div> <div>cluster.data-self-heal-algorithm diff</div> <div>cluster.background-self-heal-count 16</div> <div> <div>performance.io-thread-count = 32</div> <div>performance.high-prio-threads 24</d= iv> <div>performance.normal-prio-threads 24</div> <div>performance.low-prio-threads = 16</div> <div>performance.least-prio-threads 4</di= v> </div> <div><br> </div> <div><br> </div> <div>Check </div> <div><br> </div> <div>#> gluster colume get VOLUMENAME all</div> <div><br> </div> <div>For more</div> <div><br> </div> <div>And even after optimization it will still take very long</div> <div><br> </div> <div>Regards</div> <div>Soeren</div> <div><br> </div> <div><br> </div> <div><br> </div> <span id=3D"OLK_SRC_BODY_SECTION"> <div style=3D"font-family:Calibri; font-size:11pt; text-align:left; color:b= lack; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM:= 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid;= BORDER-RIGHT: medium none; PADDING-TOP: 3pt"> <span style=3D"font-weight:bold">From: </span>=DE=F0=E8=E9 =CF=EE=EB=F2=EE= =F0=E0=F6=EA=E8=E9 <<a href=3D"mailto:y.poltoratskiy@gmail.com">y.poltor= atskiy@gmail.com</a>><br> <span style=3D"font-weight:bold">Date: </span>Monday 25 May 2015 12:46<br> <span style=3D"font-weight:bold">To: </span>"<a href=3D"mailto:users@o= virt.org">users@ovirt.org</a>" <<a href=3D"mailto:users@ovirt.org">= users@ovirt.org</a>><br> <span style=3D"font-weight:bold">Subject: </span>[ovirt-users] glusterfs ta= kes a long time to syncing after host has been rebooted<br> </div> <div><br> </div> <div> <div> <div dir=3D"ltr">Hi.<br> <div><br> I am testing oVirt 3.5.2 with 3 hosts (Dell R210). Storage type is GlusterF= S (replicate 3): each host has a single 3TB HDD. When I put one host into m= aintence mode, then reboot it and after system has been started, the gluste= rfsd proccess takes a long time (more then hours with gigabyte network) to syncing. It seems to be reload = all data instead of download only changes . I have several VMs, but only on= e VM was running (postfix relay) at that moment, so there were no lots of c= hanges on gluster volume. <br> <br> I've googled for this issue without success. <br> <br> Is it normal situation? Or what can I do to resolve the problem? I can prov= ide any additional info.<br> <br> Thanks.<br> </div> </div> </div> </div> </span> </body> </html> --_000_D188D7F1CAE1soerenmalchowmconnet_--