<b>Von: </b>"Yaniv Kaul" <ykaul@redhat.com><br><b>An: </b>"Florian S= chmid" <fschmid@ubimet.com><br><b>CC: </b>"users" <users@ovirt.org= ><br><b>Gesendet: </b>Dienstag, 27. Juni 2017 09:08:51<br><b>Betreff: </= b>Re: [ovirt-users] Empty cgroup files on centos 7.3 host<br></div><br><div= data-marker=3D"__QUOTED_TEXT__"><div dir=3D"ltr"><br><div class=3D"gmail_e= xtra"><br><div class=3D"gmail_quote">On Mon, Jun 26, 2017 at 11:03 PM, Flor= ian Schmid <span dir=3D"ltr"><<a href=3D"mailto:fschmid@ubimet.com" targ= et=3D"_blank">fschmid@ubimet.com</a>></span> wrote:<br><blockquote class= =3D"gmail_quote" style=3D"margin: 0px 0px 0px 0.8ex; border-left: 1px solid= #cccccc; padding-left: 1ex;" data-mce-style=3D"margin: 0px 0px 0px 0.8ex; = border-left: 1px solid #cccccc; padding-left: 1ex;">Hi,<br> <br> I wanted to monitor disk IO and R/W on all of our oVirt centos 7.3 hypervis= or hosts, but it looks like that all those files are empty.<br></blockquote= <br><div>We have a very nice integration with Elastic based monitoring and= logging - why not use it.</div><div>On the host, we use collectd for monit= oring.</div><div>See <a href=3D"http://www.ovirt.org/develop/release-manage= ment/features/engine/metrics-store/" target=3D"_blank">http://www.ovirt.org= /develop/release-management/features/engine/metrics-store/</a></div><br><di= v>Y.</div><div> </div><blockquote class=3D"gmail_quote" style=3D"margi= n: 0px 0px 0px 0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;" d= ata-mce-style=3D"margin: 0px 0px 0px 0.8ex; border-left: 1px solid #cccccc;=
--=_7248eeb5-5806-4c34-81f2-149340a41686 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi Yaniv, thank you for your answer! I haven't known, that there is already such a monitoring tool on ovirt. We will sure give it a try, but we have already in our environment a monitoring tool, that's why I wanted to add those values, too. How does collectd get this data from libvirt, when the corresponding cgroup values are empty? BR Florian Von: "Yaniv Kaul" <ykaul@redhat.com> An: "Florian Schmid" <fschmid@ubimet.com> CC: "users" <users@ovirt.org> Gesendet: Dienstag, 27. Juni 2017 09:08:51 Betreff: Re: [ovirt-users] Empty cgroup files on centos 7.3 host On Mon, Jun 26, 2017 at 11:03 PM, Florian Schmid < [ mailto:fschmid@ubimet.com | fschmid@ubimet.com ] > wrote: Hi, I wanted to monitor disk IO and R/W on all of our oVirt centos 7.3 hypervisor hosts, but it looks like that all those files are empty. We have a very nice integration with Elastic based monitoring and logging - why not use it. On the host, we use collectd for monitoring. See [ http://www.ovirt.org/develop/release-management/features/engine/metrics-stor... | http://www.ovirt.org/develop/release-management/features/engine/metrics-stor... ] Y. BQ_BEGIN For example: ls -al /sys/fs/cgroup/blkio/machine.slice/machine-qemu\\x2d14\\x2dHostedEngine.scope/ insgesamt 0 drwxr-xr-x. 2 root root 0 30. Mai 10:09 . drwxr-xr-x. 16 root root 0 26. Jun 09:25 .. -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_merged -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_merged_recursive -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_queued -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_queued_recursive -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_bytes -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_bytes_recursive -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_serviced -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_serviced_recursive -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_time -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_time_recursive -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_wait_time -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_wait_time_recursive -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.leaf_weight -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.leaf_weight_device --w-------. 1 root root 0 30. Mai 10:09 blkio.reset_stats -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.sectors -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.sectors_recursive -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.io_service_bytes -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.io_serviced -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_bps_device -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_iops_device -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_bps_device -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_iops_device -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.time -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.time_recursive -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.weight -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.weight_device -rw-r--r--. 1 root root 0 30. Mai 10:09 cgroup.clone_children --w--w--w-. 1 root root 0 30. Mai 10:09 cgroup.event_control -rw-r--r--. 1 root root 0 30. Mai 10:09 cgroup.procs -rw-r--r--. 1 root root 0 30. Mai 10:09 notify_on_release -rw-r--r--. 1 root root 0 30. Mai 10:09 tasks I thought, I can get my needed values from there, but all files are empty. Looking at this post: [ http://lists.ovirt.org/pipermail/users/2017-January/079011.html | http://lists.ovirt.org/pipermail/users/2017-January/079011.html ] this should work. Is this normal on centos 7.3 with oVirt installed? How can I get those values, without monitoring all VMs directly? oVirt Version we use: 4.1.1.8-1.el7.centos BR Florian _______________________________________________ Users mailing list [ mailto:Users@ovirt.org | Users@ovirt.org ] [ http://lists.ovirt.org/mailman/listinfo/users | http://lists.ovirt.org/mailman/listinfo/users ] BQ_END --=_7248eeb5-5806-4c34-81f2-149340a41686 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"font-family: arial, helvetica, sans-serif; font-s= ize: 12pt; color: #000000"><div>Hi Yaniv,</div><div><br data-mce-bogus=3D"1= "></div><div>thank you for your answer! I haven't known, that there is alre= ady such a monitoring tool on ovirt.</div><div><br data-mce-bogus=3D"1"></d= iv><div>We will sure give it a try, but we have already in our environment = a monitoring tool, that's why I wanted to add those values, too.</div><div>= <br></div><div>How does collectd get this data from libvirt, when the corre= sponding cgroup values are empty?</div><div><br data-mce-bogus=3D"1"></div>= <div>BR Florian</div><div data-marker=3D"__SIG_PRE__"><div><p style=3D"marg= in-bottom: 0cm;" data-mce-style=3D"margin-bottom: 0cm;"><a class=3D"mceItem= Anchor" name=3D"OBJ_PREFIX_DWT8057_com_zimbra_url"></a><a class=3D"mceItemA= nchor" name=3D"OBJ_PREFIX_DWT1086_com_zimbra_url"></a><a class=3D"mceItemAn= chor" name=3D"OBJ_PREFIX_DWT8058_com_zimbra_url"></a> <span style=3D"color:= #b3b3b3;" data-mce-style=3D"color: #b3b3b3;"></span></p></div></div><br><h= r id=3D"zwchr" data-marker=3D"__DIVIDER__"><div data-marker=3D"__HEADERS__"= padding-left: 1ex;"> For example:<br> ls -al /sys/fs/cgroup/blkio/machine.slice/machine-qemu\\x2d14\\x2dHostedEng= ine.scope/<br> insgesamt 0<br> drwxr-xr-x. 2 root root 0 30. Mai 10:09 .<br> drwxr-xr-x. 16 root root 0 26. Jun 09:25 ..<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_merged<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_merged_recursive<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_queued<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_queued_recursive<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_bytes<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_bytes_recurs= ive<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_serviced<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_serviced_recursive<b= r> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_time<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_service_time_recursi= ve<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_wait_time<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.io_wait_time_recursive<= br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.leaf_weight<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.leaf_weight_device<br> --w-------. 1 root root 0 30. Mai 10:09 blkio.reset_stats<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.sectors<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.sectors_recursive<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.io_service_byt= es<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.io_serviced<br=
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_bps_devic= e<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_iops_devi= ce<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_bps_devi= ce<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_iops_dev= ice<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.time<br> -r--r--r--. 1 root root 0 30. Mai 10:09 blkio.time_recursive<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.weight<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.weight_device<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 cgroup.clone_children<br> --w--w--w-. 1 root root 0 30. Mai 10:09 cgroup.event_control<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 cgroup.procs<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 notify_on_release<br> -rw-r--r--. 1 root root 0 30. Mai 10:09 tasks<br> <br> <br> I thought, I can get my needed values from there, but all files are empty.<= br> <br> Looking at this post: <a href=3D"http://lists.ovirt.org/pipermail/users/201= 7-January/079011.html" rel=3D"noreferrer" target=3D"_blank">http://lists.ov= irt.org/pipermail/users/2017-January/079011.html</a><br> this should work.<br> <br> Is this normal on centos 7.3 with oVirt installed? How can I get those valu= es, without monitoring all VMs directly?<br> <br> oVirt Version we use:<br> 4.1.1.8-1.el7.centos<br> <br> BR Florian<br> _______________________________________________<br> Users mailing list<br> <a href=3D"mailto:Users@ovirt.org" target=3D"_blank">Users@ovirt.org</a><br=
<a href=3D"http://lists.ovirt.org/mailman/listinfo/users" rel=3D"noreferrer= " target=3D"_blank">http://lists.ovirt.org/mailman/listinfo/users</a><br> </blockquote></div></div></div><br></div></div></body></html> --=_7248eeb5-5806-4c34-81f2-149340a41686--