6:49 a.m.
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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(a)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_
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<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=
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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(a)gmail.com</a>&gt;<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(a)ovirt.org</a>&quot; <<a
href=3D"mailto:users@ovirt.org">=
users(a)ovirt.org</a>&gt;<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>
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