<div dir="ltr"><br><div class="gmail_extra">No iptables or otherwise firewalls are setup on these nodes.</div><div class="gmail_extra"><br></div><div class="gmail_extra">One observation is that each node sends messages on with its own ring sequence number which is not converging.. I have seen that in a good cluster, when nodes respond with same sequence number, the membership is automatically formed. But in our case, that is not the case.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Example: we can see that one node sends</div><div class="gmail_extra">

<div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Jun 07 07:55:04 corosync [pcmk  ] notice: pcmk_peer_update: Transitional membership event on ring 71084: memb=1, new=0, lost=0</div><div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">.....</div><div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">

<div style="text-decoration-style:initial;text-decoration-color:initial">Jun 07 07:55:16 corosync [pcmk  ] notice: pcmk_peer_update: Transitional membership event on ring 71096: memb=1, new=0, lost=0</div>Jun 07 07:55:16 corosync [pcmk  ] notice: pcmk_peer_update: Stable membership event on ring 71096: memb=1, new=0, lost=0<br class="gmail-Apple-interchange-newline"></div><div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">other node sends messages with its own numbers</div><div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">

<div style="text-decoration-style:initial;text-decoration-color:initial">Jun 07 07:55:12 corosync [pcmk  ] notice: pcmk_peer_update: Transitional membership event on ring 71088: memb=1, new=0, lost=0</div><div style="text-decoration-style:initial;text-decoration-color:initial">Jun 07 07:55:12 corosync [pcmk  ] notice: pcmk_peer_update: Stable membership event on ring 71088: memb=1, new=0, lost=0<br></div><div style="text-decoration-style:initial;text-decoration-color:initial">.......<br></div><div style="text-decoration-style:initial;text-decoration-color:initial">Jun 07 07:55:24 corosync [pcmk  ] notice: pcmk_peer_update: Transitional membership event on ring 71100: memb=1, new=0, lost=0</div><div style="text-decoration-style:initial;text-decoration-color:initial">Jun 07 07:55:24 corosync [pcmk  ] notice: pcmk_peer_update: Stable membership event on ring 71100: memb=1, new=0, lost=0<br></div><div style="text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="text-decoration-style:initial;text-decoration-color:initial">Any idea why this happens, and why the seq. numbers from different nodes are not converging ?</div><div style="text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="text-decoration-style:initial;text-decoration-color:initial">Thanks!</div>

<br></div><div style="font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div>

<br></div></div>