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<p class="MsoNormal"><span lang="DE">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><br>
I would have a question regarding the maximum number of cluster nodes supported by Corosync 3.x and Pacemaker 2.1.<br>
<br>
On the </span><a href="https://clusterlabs.org/" target="_blank"><span style="font-size:11.5pt;font-family:"Arial",sans-serif;background:#F8F8F8;text-decoration:none">https://clusterlabs.org</span></a><span lang="EN-US"> entry page one can find the following
statement:<br>
</span><span style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D;mso-fareast-language:EN-GB"><br>
</span><span lang="EN-US" style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D;background:#F8F8F8;mso-fareast-language:EN-GB">„</span><span style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D;background:#F8F8F8;mso-fareast-language:EN-GB">We
support many deployment scenarios, from the simplest 2-node standby cluster to a <b>32</b>-node active/active configuration.</span><span lang="EN-US" style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D;background:#F8F8F8;mso-fareast-language:EN-GB">“</span><span lang="EN-US" style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D;background:#F8F8F8;mso-fareast-language:EN-GB">
</span><span style="mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><br>
But in the “Scaling a Pacemaker Cluster” chapter - <a href="https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Remote/html/intro.html">
https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Remote/html/intro.html</a> - one can find this contrary statement:<br>
</span><br>
<span lang="EN-US">„</span>In a basic Pacemaker high-availability cluster <a href="https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Remote/html/intro.html#id2">
[1]</a> each node runs the full cluster stack of Corosync and all Pacemaker components. This allows great flexibility but limits scalability to around
<b>16</b> nodes.<span lang="EN-US">“<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><br>
Is this just a documentation inconsistency from a previous release?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Btw, current Linux distros like Redhat or SUSE both mention a 32 node upper limit, too:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://access.redhat.com/articles/3069031">https://access.redhat.com/articles/3069031</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">https://documentation.suse.com/sle-ha/15-SP1/html/SLE-HA-all/cha-ha-concepts.html<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks in advance!<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:EN-GB">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:EN-GB">Michael</span><o:p></o:p></p>
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