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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Hi Yujun,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Thanks for the explanation, but I still don’t fully understand.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Let me start with the current state:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Calibri"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;font-family:Calibri">introduce a flexible `metadata` dict in to ALARM entity<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:11.0pt;font-family:Calibri">[Ifat] Already exists. An alarm is represented as a vertex in the entity graph, with a dictionary of properties.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Calibri"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;font-family:Calibri">Allow generating update event[1] on metadata change<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Calibri"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;font-family:Calibri">Allow using ALARM metadata in scenario condition<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:11.0pt;font-family:Calibri">[Ifat] Already exists. You can define properties in the ‘entities’ section in Vitrage templates
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:Calibri"><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span dir="LTR"></span><span style="font-size:11.0pt;font-family:Calibri">Allow setting ALARM metadata in scenario action<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">If I understand correctly, you are suggesting that one scenario will add metadata to an existing alarm, which will trigger an event, and as a result another scenario might be executed?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Can you describe a use case where this behavior will help calculating the root cause?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Ifat.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><b><span style="font-family:Calibri;color:black">From:
</span></b><span style="font-family:Calibri;color:black">Yujun Zhang <zhangyujun+zte@gmail.com><br>
<b>Reply-To: </b>"OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org><br>
<b>Date: </b>Saturday, 7 January 2017 at 09:27<br>
<b>To: </b>"OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org><br>
<b>Cc: </b>"han.jing28@zte.com.cn" <han.jing28@zte.com.cn>, "wang.weiya@zte.com.cn" <wang.weiya@zte.com.cn>, "gong.yahui5@zte.com.cn" <gong.yahui5@zte.com.cn>, "jia.peiyuan@zte.com.cn" <jia.peiyuan@zte.com.cn>, "zhang.yujunz@zte.com.cn" <zhang.yujunz@zte.com.cn><br>
<b>Subject: </b>Re: [openstack-dev] [Vitrage] About alarms reported by datasource and the alarms generated by vitrage evaluator<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">The two questions raised by YinLiYin is actually one, i.e.
<b>how to enrich the alarm properties </b>that can be used as an condition in root cause deducing.
<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Both 'suspect' or 'datasource' are additional information that may be referred as a condition in general fault model, a.k.a. scenario in vitrage.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">It seems it could be done by<o:p></o:p></p>
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<ol start="1" type="1">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2">
<span style="font-size:10.0pt">introduce a flexible `metadata` dict in to ALARM entity</span><o:p></o:p></li></ol>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span dir="LTR"></span><span style="font-size:10.0pt">Allow generating update event[1] on metadata change</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span dir="LTR"></span><span style="font-size:10.0pt">Allow using ALARM metadata in scenario condition</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span dir="LTR"></span><span style="font-size:10.0pt">Allow setting ALARM metadata in scenario action</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">This will leave the flexibility to continuous development by defining a complex scenario template and keep the vitrage evaluator simple and generic.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">My two cents.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">[1]: <a href="http://docs.openstack.org/developer/vitrage/scenario-evaluator.html#concepts-and-guidelines">http://docs.openstack.org/developer/vitrage/scenario-evaluator.html#concepts-and-guidelines</a> <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">On Sat, Jan 7, 2017 at 2:23 AM Afek, Ifat (Nokia - IL) <<a href="mailto:ifat.afek@nokia.com">ifat.afek@nokia.com</a>> wrote:<o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri">Hi YinLiYin,</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri"> </span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri">This is an interesting question. Let me divide my answer to two parts.</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri"> </span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri">First, the case that you described with Nagios and Vitrage. This problem depends on the specific Nagios tests that you configure in your system, as well as on the Vitrage templates that
you use. For example, you can use Nagios/Zabbix to monitor the physical layer, and Vitrage to raise deduced alarms on the virtual and application layers. This way you will never have duplicated alarms. If you want to use Nagios to monitor the other layers
as well, you can simply modify Vitrage templates so they don’t raise the deduced alarms that Nagios may generate, and use the templates to show RCA between different Nagios alarms.</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri"> </span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri">Now let’s talk about the more general case. Vitrage can receive alarms from different monitors, including Nagios, Zabbix, collectd and Aodh. If you are using more than one monitor, it
is possible that the same alarm (maybe with a different name) will be raised twice. We need to create a mechanism to identify such cases and create a single alarm with the properties of both monitors. This has not been designed in details yet, so if you have
any suggestion we will be happy to hear them.</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri"> </span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri">Best Regards,</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri">Ifat.</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri"> </span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-size:11.0pt;font-family:Calibri"> </span></span><o:p></o:p></p>
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<span class="gmailmsg"><b><span style="font-family:Calibri;color:black">From: </span>
</b></span><span class="gmailmsg"><span style="font-family:Calibri;color:black">"<a href="mailto:yinliyin@zte.com.cn" target="_blank">yinliyin@zte.com.cn</a>" <<a href="mailto:yinliyin@zte.com.cn" target="_blank">yinliyin@zte.com.cn</a>></span></span><span style="font-family:Calibri;color:black"><br>
<span class="gmailmsg"><b>Reply-To: </b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>></span><br>
<span class="gmailmsg"><b>Date: </b>Friday, 6 January 2017 at 03:27</span><br>
<span class="gmailmsg"><b>To: </b>"<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>></span><br>
<span class="gmailmsg"><b>Cc: </b>"<a href="mailto:gong.yahui5@zte.com.cn" target="_blank">gong.yahui5@zte.com.cn</a>" <<a href="mailto:gong.yahui5@zte.com.cn" target="_blank">gong.yahui5@zte.com.cn</a>>, "<a href="mailto:han.jing28@zte.com.cn" target="_blank">han.jing28@zte.com.cn</a>"
<<a href="mailto:han.jing28@zte.com.cn" target="_blank">han.jing28@zte.com.cn</a>>, "<a href="mailto:wang.weiya@zte.com.cn" target="_blank">wang.weiya@zte.com.cn</a>" <<a href="mailto:wang.weiya@zte.com.cn" target="_blank">wang.weiya@zte.com.cn</a>>, "<a href="mailto:jia.peiyuan@zte.com.cn" target="_blank">jia.peiyuan@zte.com.cn</a>"
<<a href="mailto:jia.peiyuan@zte.com.cn" target="_blank">jia.peiyuan@zte.com.cn</a>>, "<a href="mailto:zhang.yujunz@zte.com.cn" target="_blank">zhang.yujunz@zte.com.cn</a>" <<a href="mailto:zhang.yujunz@zte.com.cn" target="_blank">zhang.yujunz@zte.com.cn</a>></span><br>
<span class="gmailmsg"><b>Subject: </b>[openstack-dev] [Vitrage] About alarms reported by datasource and the alarms generated by vitrage evaluator</span></span><o:p></o:p></p>
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<o:p></o:p></p>
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<span class="gmailmsg"><span style="font-family:宋体">Hi all, </span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-family:宋体"> Vitrage generate alarms acording to the templates. All the alarms raised by vitrage has the type "vitrage". Suppose Nagios has an alarm A. Alarm A is raised by vitrage evaluator according to the action
part of a scenario, type of alarm A is "vitrage". If Nagios reported alarm A latter, a new alarm A with type "Nagios" would be generator in the entity graph. There would be two vertices for the same alarm in the graph. And we have to define two alarm entities,
two relationships, two scenarios in the template file to make the alarm propagation procedure work.</span></span><o:p></o:p></p>
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<span class="gmailmsg"><span style="font-family:宋体"> It is inconvenient to describe fault model of system with lot of alarms. How to solve this problem?</span></span><o:p></o:p></p>
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<p class="gmailmsg1" style="margin-left:72.0pt"><span class="gmailmsg"><span style="font-size:5.5pt;font-family:宋体"> </span></span><o:p></o:p></p>
<p class="gmailmsg1" style="margin-left:72.0pt"><span class="gmailmsg"><span style="font-size:9.0pt;font-family:Calibri;color:#58595B">殷力殷</span></span><span class="gmailmsg"><span style="font-size:9.0pt;font-family:Times;color:#58595B"> </span></span><span class="gmailmsg"><span style="font-family:Arial;color:#58595B">YinLiYin</span></span><o:p></o:p></p>
<p class="gmailmsg1" style="margin-left:72.0pt"><span class="gmailmsg"><span style="font-size:5.5pt"> </span></span><o:p></o:p></p>
<p class="gmailmsg1" style="margin-left:72.0pt"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:宋体;color:black"><img border="0" width="130" height="120" id="_x0000_i1035" src="cid:image001.gif@01D26859.D4BAB6B0"></span><o:p></o:p></p>
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<span style="font-family:宋体;color:black"><img border="0" width="115" height="38" id="_x0000_i1036" src="cid:image002.gif@01D26859.D4BAB6B0"><br>
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</span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#008FD4">T</span></span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#58595B">:
</span></span><span class="m5609626365442085205signedit"><span style="font-size:7.5pt;font-family:Arial;color:#58595B"><a href="tel:+86%2021%206889%206229" target="_blank">+86 21 68896229</a></span></span><span style="font-size:7.5pt;font-family:Arial;color:#58595B"><br>
</span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#008FD4">M</span></span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#58595B">:
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</span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#008FD4">E</span></span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#58595B">:
</span></span><span class="m5609626365442085205signedit"><span style="font-size:7.5pt;font-family:Arial;color:#58595B"><a href="mailto:yinliyin@zte.com.cn" target="_blank">yinliyin@zte.com.cn</a></span></span><span style="font-size:7.5pt;font-family:Arial;color:#58595B"><br>
</span><span class="gmailmsg"><span style="font-size:7.5pt;font-family:Arial;color:#008FD4"><a href="http://www.zte.com.cn/" target="_blank">www.zte.com.cn</a></span></span><o:p></o:p></p>
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<p class="gmailmsg1" style="margin-left:72.0pt"> <o:p></o:p></p>
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