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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Hi guys, <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">So, here is the expected behavior and we are taking 11.5 as reference:
<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"><u><span style="font-size:11.0pt;font-family:Calibri">Historical datasource:<o:p></o:p></span></u></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:Calibri"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">The historical datasource on either node should always point to the non-master Node. So, assume N1 is the master. CUIC on N1 should be pointing to N2 datasource host and CUIC on N2 should
be pointing to N2 datasource host. Also, unlike older versions we don’t redirect users to the secondary UCCX IP to login to run reports. You can login to any node CUIC and run the report, but the datsource host should be the secondary server.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">However, we have seen cases where the nodes point to each other: N1 pointing to N2 (expected), N2 pointing to N1 (problem). This is opened as a defect and we are investigating why this
can happen and I am guessing that’s what has happened in Anthony’s case in the original email thread.
<u> <o:p></o:p></u></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:Calibri"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">CSCvd22513 is the defectID for your reference. I will share more information on the outcome of the investigation.
<o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:Calibri"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:Calibri">LiveData:<o:p></o:p></span></u></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:Calibri"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">This is always pointing to the local node by default and need not be changed. The LD datasource uses REST API to figure out the engine master and will obtain the feed from the current active
server. The LD failover too should happen automatically. So if the engine failover happens and you are still logged into N1 (slave now), LD should still be available and usable.
<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:10.5pt;font-family:Calibri;color:black">Regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Abhiram Kramadhati<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Technical Solutions Manager, CCBU<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">CCIE Collaboration # 40065</span><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>
<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">"Abhiram Kramadhati (akramadh)" <akramadh@cisco.com><br>
<b>Date: </b>Friday, 7 April 2017 at 2:52 PM<br>
<b>To: </b>Anthony Holloway <avholloway+cisco-voip@gmail.com>, Nick Britt <nickolasjbritt@gmail.com><br>
<b>Cc: </b>Cisco VoIP Group <cisco-voip@puck.nether.net><br>
<b>Subject: </b>Re: [cisco-voip] UCCX HA and CUIC Historical Data Source<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I will get back on this by Monday with details.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Regards,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Abhiram Kramadhati</span><o:p></o:p></p>
</div>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Technical Solutions Manager, CCBU</span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">CCIE Collaboration # 40065</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></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">cisco-voip <cisco-voip-bounces@puck.nether.net> on behalf of Anthony Holloway <avholloway+cisco-voip@gmail.com><br>
<b>Date: </b>Friday, 7 April 2017 at 6:01 AM<br>
<b>To: </b>Nick Britt <nickolasjbritt@gmail.com><br>
<b>Cc: </b>Cisco VoIP Group <cisco-voip@puck.nether.net><br>
<b>Subject: </b>Re: [cisco-voip] UCCX HA and CUIC Historical Data Source</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Nope. Abhiram?<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">On Thu, Apr 6, 2017 at 2:31 PM Nick Britt <<a href="mailto:nickolasjbritt@gmail.com" target="_blank">nickolasjbritt@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi Anthony, <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Sorry to grave dig but just wondered if you ever got an answer for this? <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I am about to go down this rabbit hole myself as a customer wants a better explanation (documentation) as to how this is supposed to be configured and how this should behave. <o:p></o:p></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Cheers<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Nick<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">On Wed, Jun 15, 2016 at 10:22 PM, Anthony Holloway <span class="gmailmsg">
<<a href="mailto:avholloway+cisco-voip@gmail.com" target="_blank">avholloway+cisco-voip@gmail.com</a>></span> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">There seems to be zero documentation for UCCX that mentions changing or adding Data Source configuration in CUIC when running HA; whether HAoL or HAoW.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">However, I have heard from Cisco employees, forums posts, and colleagues, these two points:</span><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]><span style="font-size:9.5pt">The Data Source should point to the secondary node, and you have to manually change it, as the default is pointing to the primary node.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:47.25pt;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 style="font-size:9.5pt">The Data Source's Secondary tab is defaulted to disabled, and not populated. It shouldn't be used, and CUIC takes care of updating the Data Source during a failure.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">First off, where in the documentation is that explained? I cannot find a good explanation, sans ambiguity, to save my life. Are people just spreading rumors and old wives tales?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Also, I do know that back in the HRC days, the client would handle the connection to the secondary server automatically. So, I can see where this tale comes from.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Now, with HAoW, I tested failover with the server shutdown. Not in slave, but actually powered off. What I observed was, the Data Source was not automatically updated, and I could run any reports, despite
being logged in to the secondary CUIC server. The Data Source connection test failed, obviously, and reports failed, obviously.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">I did consider take a leap of faith and confiure the CUIC Data Source's Secondary tab, but the user account to connect to the DB instance was not in my control, and I don't know the password. I'm sure I could
get it, but it was a show stopper nonetheless.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">So, has anyone here actually tested with a failed node or island mode with their HA setup, or is it all just speculation, like this post:</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><a href="https://supportforums.cisco.com/discussion/12473981/ha-uccx-cuic-data-only-one-server" target="_blank">https://supportforums.cisco.com/discussion/12473981/ha-uccx-cuic-data-only-one-server</a></span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">_______________________________________________<br>
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<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><o:p></o:p></p>
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<p class="MsoNormal"><br>
<br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">- Nick<o:p></o:p></p>
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