<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jun 26, 2017 at 11:03 PM, Florian Schmid <span dir="ltr"><<a href="mailto:fschmid@ubimet.com" target="_blank">fschmid@ubimet.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
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.<br></blockquote><div><br></div><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 monitoring.</div><div>See <a href="http://www.ovirt.org/develop/release-management/features/engine/metrics-store/">http://www.ovirt.org/develop/release-management/features/engine/metrics-store/</a></div><div><br></div><div>Y.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
For example:<br>
ls -al /sys/fs/cgroup/blkio/machine.<wbr>slice/machine-qemu\\x2d14\\<wbr>x2dHostedEngine.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_<wbr>recursive<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<br>
-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_<wbr>recursive<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_<wbr>bytes<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_device<br>
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.read_iops_<wbr>device<br>
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_bps_<wbr>device<br>
-rw-r--r--. 1 root root 0 30. Mai 10:09 blkio.throttle.write_iops_<wbr>device<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="http://lists.ovirt.org/pipermail/users/2017-January/079011.html" rel="noreferrer" target="_blank">http://lists.ovirt.org/<wbr>pipermail/users/2017-January/<wbr>079011.html</a><br>
this should work.<br>
<br>
Is this normal on centos 7.3 with oVirt installed? How can I get those values, without monitoring all VMs directly?<br>
<br>
oVirt Version we use:<br>
4.1.1.8-1.el7.centos<br>
<br>
BR Florian<br>
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</blockquote></div><br></div></div>