Re: [ovirt-users] Empty cgroup files on centos 7.3 host

18 Dec 2017

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Hi,=20

yes, still the same issues with oVirt 4.1.7 and CentOS 7.4.=20
Whole cgroup directory has empty files.=20

Actually at the moment, we are blind when it comes to disk IO, only our Net=
App give us IO values, but these are per NFS share and there are a lots of =
VMs on it.=20

A solution would be great here.=20

BR Florian=20

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Von: "Konstantin Shalygin" <k0ste@k0ste.ru>=20
An: "users" <users@ovirt.org>=20
Gesendet: Montag, 18. Dezember 2017 07:17:42=20
Betreff: Re: [ovirt-users] Empty cgroup files on centos 7.3 host=20

Specifically for IO statistics, VDSM reads the values from libvirt[1].
cgroup limiting is possible if you define it, but is unrelated.
Also note that 7.3 is a bit ancient, I'm not sure how supported it is with
latest 4.1 - which I'm sure will pull new dependencies from 7.4 (for
example, libvirt!).=20

We use oVirt 4.1.6 on 7.4 of course.=20

Where I can see IO stat? I never see this on oVirt manager.=20

How can I enable cgroup blk metric collection?=20
Perhaps this is an outdated way and metrics should be collected in a differ=
ent way and it should be applied in the netdata project?=20

Thanks.=20

k=20

_______________________________________________=20
Users mailing list=20
Users@ovirt.org=20
http://lists.ovirt.org/mailman/listinfo/users=20

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<html><body><div style=3D"font-family: arial, helvetica, sans-serif; font-s=
ize: 12pt; color: #000000"><div>Hi,</div><div><br data-mce-bogus=3D"1"></di=
v><div>yes, still the same issues with oVirt 4.1.7 and CentOS 7.4.</div><di=
v>Whole cgroup directory has empty files.</div><div><br data-mce-bogus=3D"1=
"></div><div>Actually at the moment, we are blind when it comes to disk IO,=
 only our NetApp give us IO values, but these are per NFS share and there a=
re a lots of VMs on it.</div><div><br data-mce-bogus=3D"1"></div><div>A sol=
ution would be great here.</div><div><br data-mce-bogus=3D"1"></div><div>BR=
 Florian</div><div><br></div><div data-marker=3D"__SIG_PRE__"><div><p style=
=3D"margin-bottom: 0cm;"><a class=3D"mceItemAnchor" name=3D"OBJ_PREFIX_DWT8=
057_com_zimbra_url"></a><a class=3D"mceItemAnchor" name=3D"OBJ_PREFIX_DWT10=
86_com_zimbra_url"></a><a class=3D"mceItemAnchor" name=3D"OBJ_PREFIX_DWT805=
8_com_zimbra_url"></a> <span style=3D"color: #b3b3b3;"><img src=3D"http://w=
ww.ubimet.com/ubimet_logo.gif" data-mce-src=3D"http://www.ubimet.com/ubimet=
_logo.gif" height=3D"18" align=3D"BOTTOM" border=3D"0" width=3D"126"></span=
pan style=3D"font-style: normal;"><span style=3D"font-weight: normal;">----=
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pan><span style=3D"font-variant: normal;"><span style=3D"color: #000000;"><=
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s serif,sans-serif;"><span style=3D"font-size: xx-small;"><span style=3D"fo=
nt-style: normal;"><span style=3D"font-weight: normal;">UBIMET GmbH</span><=
/span></span></span></span></span></strong><span style=3D"font-variant: nor=
mal;"><span style=3D"color: #b3b3b3;"><span style=3D"font-family: Sans seri=
f,sans-serif;"><span style=3D"font-size: xx-small;"><span style=3D"font-sty=
le: normal;"><span style=3D"font-weight: normal;"> - weather matters&n=
bsp;</span></span></span></span></span></span><span style=3D"font-variant: =
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erif,sans-serif;"><span style=3D"font-size: xx-small;"><span style=3D"font-=
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pan style=3D"font-size: xx-small;"><span style=3D"font-style: normal;"><spa=
n style=3D"font-weight: normal;">Ing. Florian Schmid =E2=80=A2 IT Infrastru=
ktur Austria</span></span></span></span></span></span><span style=3D"font-v=
ariant: normal;"><span style=3D"color: #000000;"><span style=3D"font-family=
: Sans serif,sans-serif;"><span style=3D"font-size: xx-small;"><span style=
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span></span></span></span></span></p><p style=3D"margin-bottom: 0cm;"><span=
 style=3D"font-variant: normal;"><span style=3D"color: #000000;"><span styl=
e=3D"font-family: Sans serif,sans-serif;"><span style=3D"font-size: xx-smal=
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rmal;"><span style=3D"color: #666666;"><span style=3D"font-family: Sans ser=
if,sans-serif;"><span style=3D"font-size: xx-small;"><span style=3D"font-st=
yle: normal;"><span style=3D"font-weight: normal;">A-1220 Wien =E2=80=A2 Do=
nau-City-Stra=C3=9Fe 11 =E2=80=A2 Tel +43 1 263 11 22 DW 469 =E2=80=A2 Fax =
+43 1 263 11 22 219<br>fschmid@ubimet.com</span></span></span></span></span=
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=3D"zwchr" data-marker=3D"__DIVIDER__"><div data-marker=3D"__HEADERS__"><b>=
Von: </b>"Konstantin Shalygin" <k0ste@k0ste.ru><br><b>An: </b>"users"=
 <users@ovirt.org><br><b>Gesendet: </b>Montag, 18. Dezember 2017 07:1=
7:42<br><b>Betreff: </b>Re: [ovirt-users] Empty cgroup files on centos 7.3 =
host<br></div><br><div data-marker=3D"__QUOTED_TEXT__"><p>
      </p><blockquote>
        <pre>Specifically for IO statistics, VDSM reads the values from lib=
virt[1].
cgroup limiting is possible if you define it, but is unrelated.
Also note that 7.3 is a bit ancient, I'm not sure how supported it is with
latest 4.1 - which I'm sure will pull new dependencies from 7.4 (for
example, libvirt!).</pre>
      </blockquote>
      We use oVirt 4.1.6 on 7.4 of course.<p></p>
    <p>Where I can see IO stat? I never see this on oVirt manager.</p>
    <p><span id=3D"result_box" class=3D"" lang=3D"en"><span>How can I enabl=
e
          cgroup blk metric collection?</span><br>
        <span class=3D"">Perhaps this is an outdated way and metrics
          should be collected in a different way and it should be
          applied in the netdata project?</span></span></p>
    <p><span id=3D"result_box" class=3D"" lang=3D"en"><span class=3D"">Than=
ks.</span></span></p>
    <p><span id=3D"result_box" class=3D"" lang=3D"en"><span class=3D""><br>
        </span></span></p>
    <p><span id=3D"result_box" class=3D"" lang=3D"en"><span class=3D"">k<br=
</span></span></p>
 =20

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