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<div>Hi Yujun,</div>
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<div>You understood correctly. ‘name’ is checked if it exists, and is ignored otherwise.</div>
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<div>Best Regards,</div>
<div>Ifat.</div>
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<span style="font-weight:bold">From: </span>Yujun Zhang<br>
<span style="font-weight:bold">Reply-To: </span>"OpenStack Development Mailing List (not for usage questions)"<br>
<span style="font-weight:bold">Date: </span>Wednesday, 17 August 2016 at 18:01<br>
<span style="font-weight:bold">To: </span>"OpenStack Development Mailing List (not for usage questions)"<br>
<span style="font-weight:bold">Subject: </span>Re: [openstack-dev] [vitrage] reference a type of alarm in template<br>
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<div dir="ltr">Thanks a lot Liat.
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<div>So if `name` is omitted, all alarms from that source will match the entity. Otherwise the `name` is checked. The property mapped to `name` is defined in datasource driver and transformer. Is that so?</div>
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<div>P.S. <span style="line-height:1.5">I know that the ultimate answers can be digged outs from code and document. It just sometimes consumes too much time.</span></div>
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<div><span style="line-height:1.5">Thanks again for the clarifications from the team. Your answers really helped me a lot in the understanding of vitrage design.</span></div>
<div>--</div>
<div>Yujun<br>
<br>
<div class="gmail_quote">
<div dir="ltr">On Wed, Aug 17, 2016 at 10:03 PM Har-Tal, Liat (Nokia - IL) <<a href="mailto:liat.har-tal@nokia.com">liat.har-tal@nokia.com</a>> wrote:<br>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Hi Yujun,
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">There is no limitation for the number of alarms from the same data source you can define in the template.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">See the following examples:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Example 1</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">: two different alarms definitions
from the same data source<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">- entity:</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> category: ALARM</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> type: nagios</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> name: CPU load</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> template_id: nagios_alarm_1<u></u><u></u></span></p>
<p class="MsoNormal" style="text-indent:36.0pt;line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">- entity:</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> category: ALARM</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> type: nagios</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> name: Memory use</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> template_id: nagios_alarm_2<u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Example 2</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">: definition for a general alarm
from specific data source<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<p class="MsoNormal" style="text-indent:36.0pt;line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">- entity:</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> category: ALARM</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> type: nagios</span><span style="font-size:10.5pt;font-family:Consolas;color:#333333"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"> template_id: nagios_alarm<u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333"><u></u> <u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">Best regards,
<u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:15.0pt"><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">Liat<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;">From:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;"> Yujun Zhang [mailto:<a href="mailto:zhangyujun%2Bzte@gmail.com" target="_blank">zhangyujun+zte@gmail.com</a>]
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<b>Sent:</b> Wednesday, August 17, 2016 3:51 AM</span></p>
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<p class="MsoNormal"><span style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [vitrage] reference a type of alarm in template<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Hi, Liat,<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Thanks for clarification. But my question still remains.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Under this definition (type <=> datasource), we can only refer to
<b>**one** </b>alarm from each datasource in the template. Is it a limitation?<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">How should I refer two different aodh alarms in the template?<u></u><u></u></p>
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<p class="MsoNormal">--<u></u><u></u></p>
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<p class="MsoNormal">Yujun<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Tue, Aug 16, 2016 at 10:24 PM Har-Tal, Liat (Nokia - IL) <<a href="mailto:liat.har-tal@nokia.com" target="_blank">liat.har-tal@nokia.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Hi Yujun,
</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">The template example you are looking at is invalid.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">I added a new valid example (see the following link:
<a href="https://review.openstack.org/#/c/355840/" target="_blank">https://review.openstack.org/#/c/355840/</a>)</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">As Elisha wrote, the ‘type’ field means the alarm type itself or in simple words where it was generated (Vitrage/Nagios/Zabbix/AODH)
</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">The ‘name’ field is not mandatory and it describes the actual problem which the alarm was raised about.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">In the example you can see two alarm types:</span><u></u><u></u></p>
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<p><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">1.</span><span style="font-size:7.0pt;color:#1f497d">
</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Zabbix alarm - No use of “name” field:</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> category: ALARM</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> type: zabbix</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> rawtext: Processor load is too high on {<a href="http://HOST.NAME" target="_blank">HOST.NAME</a>}</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> template_id: zabbix_alarm</span><u></u><u></u></p>
<p><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">2.</span><span style="font-size:7.0pt;color:#1f497d">
</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Vitrage alarm</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> category: ALARM</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> type: vitrage</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> name: CPU performance degradation</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> template_id: instance_alarm</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">One more point, in order to define an entity in the template, the only mandatory fields are:</span><u></u><u></u></p>
<p><span style="font-size: 11pt; color: rgb(31, 73, 125);">·</span><span style="font-size:7.0pt;color:#1f497d">
</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">template_id</span><u></u><u></u></p>
<p><span style="font-size: 11pt; color: rgb(31, 73, 125);">·</span><span style="font-size:7.0pt;color:#1f497d">
</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">category</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">All the other fields are optional and they are designed so that you more accurately define the entity.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Each alarm data source has its own set of fields you can use – we will add documentation for the in the future.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Best regards,
</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Liat Har-Tal</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;">From:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;"> Yujun Zhang [mailto:<a href="mailto:zhangyujun%2Bzte@gmail.com" target="_blank">zhangyujun+zte@gmail.com</a>]
<br>
<b>Sent:</b> Tuesday, August 16, 2016 5:18 AM</span><u></u><u></u></p>
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<b>To:</b> OpenStack Development Mailing List (not for usage questions)</span><u></u><u></u></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;">Subject:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;"> Re: [openstack-dev] [vitrage] reference a type of alarm in template</span><u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal">Hi, Elisha<u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal">There is no `name` in the template [1], and type is not one of 'nagios', 'aodh' and 'vitrage' in the examples [2].<u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
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</span><span style="font-size:9.0pt;font-family:Consolas;color:#183691">- </span>
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</span><span style="font-size:9.0pt;font-family:Consolas;color:#63a35c">category:</span><span style="font-size:9.0pt;font-family:Consolas;color:#183691"> ALARM</span><u></u><u></u></p>
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</span><span style="font-size:9.0pt;font-family:Consolas;color:#63a35c">type:</span><span style="font-size:9.0pt;font-family:Consolas;color:#183691"> Free disk space is less than 20% on volume /</span><u></u><u></u></p>
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</span><span style="font-size:9.0pt;font-family:Consolas;color:#63a35c">template_id:</span><span style="font-size:9.0pt;font-family:Consolas;color:#183691"> host_alarm</span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family: Helvetica, sans-serif; color: rgb(33, 33, 33);">[1] </span><a href="https://github.com/openstack/vitrage/blob/master/etc/vitrage/templates.sample/deduced_host_disk_space_to_instance_at_risk.yaml#L8" target="_blank"><span style="font-family: Helvetica, sans-serif;">https://github.com/openstack/vitrage/blob/master/etc/vitrage/templates.sample/deduced_host_disk_space_to_instance_at_risk.yaml#L8</span></a><u></u><u></u></p>
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<p class="MsoNormal">[2] <a href="https://github.com/openstack/vitrage/blob/master/doc/source/vitrage-template-format.rst#examples" target="_blank">https://github.com/openstack/vitrage/blob/master/doc/source/vitrage-template-format.rst#examples</a><u></u><u></u></p>
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<p class="MsoNormal">On Tue, Aug 16, 2016 at 2:21 AM Rosensweig, Elisha (Nokia - IL) <<a href="mailto:elisha.rosensweig@nokia.com" target="_blank">elisha.rosensweig@nokia.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Hi,</span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">The "type" means where it was generated - aodh, vitrage, nagios...</span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">I think you are looking for"name", a field that describes the actual problem. We should add that to our documentation to clarify.</span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Sent from
<a href="http://www.9folders.com/" target="_blank"><span style="color:#009bdf;text-decoration:none">Nine</span></a></span><u></u><u></u></p>
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<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif;">From:</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif;"> Yujun Zhang <<a href="mailto:zhangyujun%2Bzte@gmail.com" target="_blank">zhangyujun+zte@gmail.com</a>><br>
<b>Sent:</b> Aug 15, 2016 16:10<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> [openstack-dev] [vitrage] reference a type of alarm in template</span><u></u><u></u></p>
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<p class="MsoNormal">I have a question on how to reference a type of alarm in template so that we can build scenarios.
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<p class="MsoNormal">In the template sample [1], an alarm entity has three keys: `category`, `type` and `template_id`. It seems `type` is the only information to distinguish different alarms. However, when an alarm is raised by aodh, it seems all alarms are
assigned entity type `aodh` [2], so are they shown in dashboard.<u></u><u></u></p>
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<p class="MsoNormal">Suppose we have two different types of alarms from `aodh`, e.g. `volume.corrupt` and `volume.deleted`. How should I reference them separately in a template?<u></u><u></u></p>
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<p class="MsoNormal">[1] <a href="https://github.com/openstack/vitrage/blob/master/etc/vitrage/templates.sample/deduced_host_disk_space_to_instance_at_risk.yaml#L8" target="_blank">https://github.com/openstack/vitrage/blob/master/etc/vitrage/templates.sample/deduced_host_disk_space_to_instance_at_risk.yaml#L8</a><u></u><u></u></p>
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<p class="MsoNormal">[2] <a href="https://github.com/openstack/vitrage/blob/master/vitrage/datasources/aodh/transformer.py#L75" target="_blank">https://github.com/openstack/vitrage/blob/master/vitrage/datasources/aodh/transformer.py#L75</a><u></u><u></u></p>
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