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<p class="MsoNormal">Hi Sahara,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“step_type” is a member of ClusterProvisionStep, and also be stored in context.<o:p></o:p></p>
<p class="MsoNormal"><a href="https://github.com/openstack/sahara/blob/master/sahara/db/sqlalchemy/models.py#L457">https://github.com/openstack/sahara/blob/master/sahara/db/sqlalchemy/models.py#L457</a><o:p></o:p></p>
<p class="MsoNormal"><a href="https://github.com/openstack/sahara/blob/master/sahara/context.py#L264">https://github.com/openstack/sahara/blob/master/sahara/context.py#L264</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I noticed that the “step_type” in context sometimes is updated at the same time as cluster status:<o:p></o:p></p>
<p class="MsoNormal"><a href="https://github.com/openstack/sahara/blob/master/sahara/service/ops.py#L255-L256">https://github.com/openstack/sahara/blob/master/sahara/service/ops.py#L255-L256</a><o:p></o:p></p>
<p class="MsoNormal"><a href="https://github.com/openstack/sahara/blob/master/sahara/service/ops.py#L260-L261">https://github.com/openstack/sahara/blob/master/sahara/service/ops.py#L260-L261</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">From my understanding, for a certain cluster, the relationship among cluster status & steps & event should be:<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>The cluster is under a certain “status” <o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Some “steps” would happen under a certain “status”<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Some “events” would happen under a certain “step”<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:0in"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:0in"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:0in">For example, if we’re working under plugin vanilla 2.6.<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l3 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>When a cluster is under “Starting” status.<o:p></o:p></p>
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<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Two steps involved for the “Starting” status : configure_instances & configure_topology_data.<o:p></o:p></p>
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<![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>For step “configure_instances”, several events would happen => events number == instances number.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My questions are:<o:p></o:p></p>
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<![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Are there some step_type actually mixed with cluster status ? Should they be removed ?<o:p></o:p></p>
<p class="MsoNormal"> Or, I have missed something very important that we do need these step_type to be listed with cluster status ?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l4 level1 lfo3">
<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Should we define a group of constant to list all possible steps could happen for a cluster ?<o:p></o:p></p>
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<![if !supportLists]><span style="font-family:Wingdings"><span style="mso-list:Ignore">ð<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>If a plugin need special steps, it should define special constant by itself.<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:0in"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:0in">Looking forward to your reply.<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:0in"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:0in">Thanks.<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:0in">-chen<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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