<div class="socmaildefaultfont" dir="ltr" style="font-family:Arial, Helvetica, sans-serif;font-size:10pt" ><div dir="ltr" >In Corosync 1.x there was a limit on the maximum number of active nodes in a corosync cluster - broswing the mailing list says 64 hosts. The Pacemaker 1.1 documentation says scalability goes up to 16 nodes. The Pacemaker 2.0 documentation says the same, although I can't find a maximum number of nodes in Corosync 3.</div>
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<div dir="ltr" ><a href="https://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/2.0/html-single/Pacemaker_Remote/" >https://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/2.0/html-single/Pacemaker_Remote/</a> discusses deployments up to 64 hosts but it appears to reference Pacemaker 1.16.</div>
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<div dir="ltr" >With the arrival of Corossync 3.x (and Pacemaker 2.x) how large a cluster can be supported? If we want to get to a cluster with 100+ nodes, what are the best design approaches, especially if there is no clear hierarchy to the nodes in use (i.e. all of the hosts are important!).</div>
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<div dir="ltr" >Are there performance implications when comparing the operation of a pacemaker remote node to a full stack pacemaker node?</div>
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<div>Thanks,</div>
<div><br><span style="font-size:10pt;" >Toby Haynes</span></div>
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