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<p class="MsoNormal"><span style="font-size:11.0pt">Sorry for the slow response.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ifat,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">You do understand correctly.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">And I understand, that this does not really fit in Vitrage ... i.e. Vitrage has no other examples of monitoring itself being done in Vitrage.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Do you know if Zabbix has VM related monitoring ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If they don’t already do this then, I might have difficulty getting it into Zabbix.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The other option I was thinking of was to see if I could contribute to QEMU as an optional layer on top of the QEMU Guest Agent ... and then having the alarm consumed by Vitrage.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">My only other option would be to contribute into the OPNFV Availability project ... as an incremental VM Heartbeating / Health-checking functionality that would build on top of the openstack offering ... although
not sure if OPNFV Availability project was interested in doing code ... I think they might be just a requirements team.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Afek, Ifat (Nokia - IL/Kfar Sava)" <ifat.afek@nokia.com><br>
<b>Reply-To: </b>"openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org><br>
<b>Date: </b>Wednesday, May 10, 2017 at 11:06 PM<br>
<b>To: </b>"openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org><br>
<b>Subject: </b>Re: [openstack-dev] [vitrage] [nova] VM Heartbeat / Healthcheck Monitoring<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Times New Roman""><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt">Hi Greg,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If I understand correctly, you would like to add a test that checks if for every VM a heartbeat was retrieved in the last x seconds. Right?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Vitrage is not designed to perform such tests. Vitrage datasources retrieve topology (either by polling or by notifications) from services like Nova, Cinder, Neutron or Heat, and pass the topology to the Vitrage
entity graph. In addition, they retrieve alarms from monitors like Aodh, Zabbix, Nagios or Collectd, and create these alarms in the entity graph as well. There is currently no place where you can check if an event arrived or not.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">How about adding this test to a monitoring tool like Zabbix, and then consume the alarm (for a missing heartbeat) in Vitrage?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Best Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ifat.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Waines, Greg" <Greg.Waines@windriver.com><br>
<b>Reply-To: </b>"OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org><br>
<b>Date: </b>Wednesday, 10 May 2017 at 13:24<br>
<b>To: </b>"OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org><br>
<b>Subject: </b>Re: [openstack-dev] [vitrage] [nova] VM Heartbeat / Healthcheck Monitoring</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Times New Roman""> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt">Some other UPDATES on this proposal (from outside the mailing list):</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l3 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">this should probably be based on an ‘<u>image property’</u> rather than a ‘flavor extraspec’,</span><span style="font-size:11.0pt;font-family:PMingLiU"><br>
</span><span style="font-size:11.0pt">since it requires code to be included in the guest/VM image,</span><span style="font-size:11.0pt;font-family:PMingLiU"><br>
<br>
</span><span style="font-size:11.0pt"><br>
<br>
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l3 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">rather than use a unique virtio-serial link for the Heartbeat/Health-check Monitoring Messaging,
<br>
propose that we leverage the <u>existing</u> <a href="http://wiki.qemu.org/Features/GuestAgent">
http://wiki.qemu.org/Features/GuestAgent</a></span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l3 level2 lfo2">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">NOVA already supports a ‘hw_qemu_guest_agent=True’ image property</span><span style="font-size:11.0pt;font-family:PMingLiU"><br>
</span><span style="font-size:11.0pt">which results in NOVA setting up a virtio-serial connection to a QEMU Guest Agent<br>
within the Guest/VM,</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l3 level2 lfo2">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">use this for the transport messaging layer for VM Heartbeating/Health-checking</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">With respect to ... where to propose / contribute this functionality,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Given that </span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">this may require very little work in NOVA (by using QEMU Guest Agent), and</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">the fact that the primary result of VM Heartbeating / Health-checking is to report per-instance HB/HC status to Vitrage,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I am thinking that this would fit better simply in Vitrage.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">An optional functionality enabled thru /etc/vitrage/vitrage.conf .</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Comments ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Greg Waines <Greg.Waines@windriver.com><br>
<b>Reply-To: </b>"openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org><br>
<b>Date: </b>Tuesday, May 9, 2017 at 1:11 PM<br>
<b>To: </b>"openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org><br>
<b>Subject: </b>[openstack-dev] [vitrage] [nova] VM Heartbeat / Healthcheck Monitoring</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Times New Roman""> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt">I am looking for guidance on where to propose some “<u>VM Heartbeat / Health-check Monitoring</u>” functionality that I would like to contribute to openstack.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Briefly, “<u>VM Heartbeat / Health-check Monitoring</u>”</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo6"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">is optionally enabled thru a Nova flavor extra-spec,</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo6"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">is a service that runs on an OpenStack Compute Node,</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo6"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">it sends periodic Heartbeat / Health-check Challenge Requests to a VM<br>
over a virtio-serial-device setup between the Compute Node and the VM thru QEMU,</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo6"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">on loss of heartbeat or a failed health check status will result in fault event, against the VM, being
<br>
reported to Vitrage thru its data-source API.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Where should I contribute this functionality ?</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo8"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">put it ALL in Vitrage ... both the monitoring and the data-source reporting ?
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo8"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">put the monitoring in Nova, and just the data source reporting in Vitrage ?</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo8"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">other ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">p.s. other info ...</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Benefits of “VM Heartbeat / Health-check Monitoring”</span><span style="font-size:11.0pt;font-family:PMingLiU"><br>
</span><span style="font-size:11.0pt"><br>
<br>
<br>
<br>
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l4 level1 lfo10">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">monitors health of OS and Applications INSIDE the VM</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l4 level2 lfo10">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">i.e. even just a simple Ack of the Heartbeat would validate that the OS is running, IO mechanisms (sockets, etc)<br>
are working and processes are getting scheduled</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l4 level1 lfo10">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">health-check status reporting can trigger and report on either high-level or detailed application-specific audits within the VM,<br>
<br>
<br>
<br>
<br>
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l4 level1 lfo10">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">the simple virtio-serial-device interface thru QEMU is UP very early in VM life cycle and is virtually
<u>always up</u></span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l4 level2 lfo10">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">i.e. its available for reporting issues virtually all the time,</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l4 level2 lfo10">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt"> ... compared to reporting issues over Tenant Network to a remote VNFManager which relies on Ethernet and IP Networking within the VM itself and then any provider network and adjacent routers
around the compute nodes ...<br>
<br>
<br>
<br>
<br>
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l4 level1 lfo10">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">uses a simple “Line-Delimited JSON” Format over virtio serial device (
<a href="http://www.linux-kvm.org/page/Virtio-serial_API">http://www.linux-kvm.org/page/Virtio-serial_API</a> )</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l4 level2 lfo10">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">simple to implement protocol inside VM, in pretty much any language</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l4 level2 lfo10">
<![if !supportLists]><span style="font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">( although would provide reference implementation )<br>
<br>
<br>
<br>
<br>
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l4 level1 lfo10">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">provides more thorough instance monitoring than libvirt’s emulated hardware watchdog (
<a href="https://libvirt.org/formatdomain.html#elementsWatchdog">https://libvirt.org/formatdomain.html#elementsWatchdog</a> )</span><o:p></o:p></p>
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