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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Hi Yinliyin,<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">At first I thought that changing the deduced to be a property on the alarm might help in solving your use case. But now I think most of the problems will remain the same:<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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<li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:Calibri">It won’t solve the general problem of two different monitors that raise the same alarm
<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:Calibri">It won’t solve possible conflicts of timestamp and severity between different monitors<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:Calibri">It will make the decision of when to delete the alarm more complex (delete it when the deduced alarm is deleted? When Nagios alarm is deleted? both? And
how to change the timestamp and severity in these cases?)<o:p></o:p></span></li></ul>
<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">So I don’t think that making this change is beneficial.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">What do you think?<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">Best Regards,<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"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">"yinliyin@zte.com.cn" <yinliyin@zte.com.cn><br>
<b>Date: </b>Monday, 9 January 2017 at 05:29<br>
<b>To: </b>"Afek, Ifat (Nokia - IL)" <ifat.afek@nokia.com><br>
<b>Cc: </b>"openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org>, "han.jing28@zte.com.cn" <han.jing28@zte.com.cn>, "wang.weiya@zte.com.cn" <wang.weiya@zte.com.cn>, "zhang.yujunz@zte.com.cn" <zhang.yujunz@zte.com.cn>, "jia.peiyuan@zte.com.cn"
<jia.peiyuan@zte.com.cn>, "gong.yahui5@zte.com.cn" <gong.yahui5@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"><o:p> </o:p></p>
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<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt">Hi Ifat, <o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> I think there is a situation that all the alarms are reported by the monitored system. We use vitrage to:<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> 1. Found the relationships of the alarms, and find the root cause.<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> 2. Deduce the alarm before it really occured. This comprise two aspects:<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> 1) A cause B: When A occured, we deduce that B would occur<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> 2) B is caused by A: When B occured, we deduce that A must occured<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> In "2", we do expect vitrage to raise the alarm before the alarm is reported because the alarm would be lost or be delayed for some reason. So we would write "raise alarm" actions in the scenarios of the template.
I think that the alarm is reported or is deduced should be a state property of the alarm. The vertex reported and the vertex deduced of the same alarm should be merged to one vertex. <o:p></o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"> Best Regards,<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> Yinliyin.<o:p></o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"> <o:p></o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"> <o:p></o:p></span></p>
<p><span style="font-size:9.0pt"> <o:p></o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p><span style="font-size:9.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:#F5F6F8"><strong><span style="font-size:9.0pt;font-family:"MS Mincho"">主</span></strong><strong><span style="font-size:9.0pt">
</span></strong><strong><span style="font-size:9.0pt;font-family:SimSun">题</span></strong><strong><span style="font-size:9.0pt">
</span></strong><strong><span style="font-size:9.0pt;font-family:"MS Mincho"">：</span></strong><strong><span style="font-size:9.0pt">Re: [openstack-dev] [Vitrage] About alarms reported by datasource and the alarms generated by vitrage evaluator</span></strong><span style="font-size:9.0pt"><o:p></o:p></span></p>
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<p class="zhistorycontent"><span style="font-size:9.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">Hi YinLiYin,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">This is an interesting question. Let me divide my answer to two parts.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">Best Regards,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">Ifat.</span><o:p></o:p></p>
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<strong><span style="font-family:Calibri;color:black">From: </span></strong><span style="font-family:Calibri;color:black">"yinliyin@zte.com.cn" ＜yinliyin@zte.com.cn＞<br>
<strong><span style="font-family:Calibri">Reply-To: </span></strong>"OpenStack Development Mailing List (not for usage questions)" ＜openstack-dev@lists.openstack.org＞<br>
<strong><span style="font-family:Calibri">Date: </span></strong>Friday, 6 January 2017 at 03:27<br>
<strong><span style="font-family:Calibri">To: </span></strong>"openstack-dev@lists.openstack.org" ＜openstack-dev@lists.openstack.org＞<br>
<strong><span style="font-family:Calibri">Cc: </span></strong>"gong.yahui5@zte.com.cn" ＜gong.yahui5@zte.com.cn＞, "han.jing28@zte.com.cn" ＜han.jing28@zte.com.cn＞, "wang.weiya@zte.com.cn" ＜wang.weiya@zte.com.cn＞, "jia.peiyuan@zte.com.cn" ＜jia.peiyuan@zte.com.cn＞,
"zhang.yujunz@zte.com.cn" ＜zhang.yujunz@zte.com.cn＞<br>
<strong><span style="font-family:Calibri">Subject: </span></strong>[openstack-dev] [Vitrage] About alarms reported by datasource and the alarms generated by vitrage evaluator</span><o:p></o:p></p>
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<o:p></o:p></p>
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<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;line-height:15.0pt;background:white;box-sizing: border-box;min-height: 14px;outline: none !important">
<span style="font-size:9.0pt;font-family:宋体">Hi all, </span><span style="font-size:9.0pt"><o:p></o:p></span></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;line-height:15.0pt;background:white;box-sizing: border-box;min-height: 14px;outline: none !important">
<span style="font-size:9.0pt;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 style="font-size:9.0pt"><o:p></o:p></span></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;line-height:15.0pt;background:white;box-sizing: border-box;min-height: 14px;outline: none !important">
<span style="font-size:9.0pt;font-family:宋体"> It is inconvenient to describe fault model of system with lot of alarms. How to solve this problem?</span><span style="font-size:9.0pt"><o:p></o:p></span></p>
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<p style="margin-left:36.0pt"><span style="font-size:5.5pt;font-family:宋体"> </span><span style="font-size:9.0pt"><o:p></o:p></span></p>
<p style="margin-left:36.0pt;widows: 1"><span class="signedit"><span style="font-size:9.0pt;font-family:Calibri;color:#58595B">殷力殷</span></span><span style="font-size:9.0pt;font-family:微软雅黑;color:#58595B"> </span><span style="font-size:9.0pt;font-family:Arial;color:#58595B">YinLiYin</span><span style="font-size:9.0pt"><o:p></o:p></span></p>
<p style="margin-left:36.0pt;widows: 1"><span style="font-size:5.5pt"> </span><span style="font-size:9.0pt"><o:p></o:p></span></p>
<p style="margin-left:36.0pt;widows: 1"><span style="font-size:9.0pt"> <o:p></o:p></span></p>
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<span style="font-family:宋体;color:black"><img border="0" width="130" height="120" id="_x0000_i1027" src="cid:image003.gif@01D26B5C.646157B0"></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_i1028" src="cid:image004.gif@01D26B5C.646157B0"><br>
</span><span class="signedit"><span style="font-size:7.5pt;font-family:宋体;color:#58595B">上海市浦东新区碧波路</span></span><span class="signedit"><span style="font-size:7.5pt;font-family:微软雅黑;color:#58595B">889</span></span><span class="signedit"><span style="font-size:7.5pt;font-family:宋体;color:#58595B">号中兴研发大楼</span></span><span class="signedit"><span style="font-size:7.5pt;font-family:微软雅黑;color:#58595B">D502 </span></span><span style="font-size:7.5pt;font-family:微软雅黑;color:#58595B"><br>
</span><span class="signedit"><span style="font-size:7.5pt;font-family:Arial;color:#58595B">D502, ZTE Corporation R&D Center, 889# Bibo Road</span></span><span style="font-size:7.5pt;font-family:Arial;color:#58595B">,
<br>
<span class="signedit">Zhangjiang Hi-tech Park, Shanghai, P.R.China, 201203</span> <br>
</span><span style="font-size:7.5pt;font-family:Arial;color:#008FD4">T</span><span style="font-size:7.5pt;font-family:Arial;color:#58595B">:
<span class="signedit">+86 21 68896229</span><br>
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<span class="signedit">+86 13641895907</span> <br>
</span><span style="font-size:7.5pt;font-family:Arial;color:#008FD4">E</span><span style="font-size:7.5pt;font-family:Arial;color:#58595B">:
<span class="signedit">yinliyin@zte.com.cn</span><br>
</span><span style="font-size:7.5pt;font-family:Arial;color:#008FD4"><a href="http://www.zte.com.cn/" target="_blank"><u><span style="color:blue">www.zte.com.cn</span></u></a></span><o:p></o:p></p>
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