<div dir="ltr">Hi - I am trying to set up a 3 node cluster. I have got the corosync up and running on all the nodes and all nodes have joined the cluster. However, in the corosync logs, I am seeing continuous and repeated messages about membership events on rings. It comes every 12 seconds on all nodes.<div><br><div>Here is a sample:</div><div><br></div><div><div>May 03 10:46:29 corosync [pcmk ] notice: pcmk_peer_update: Transitional membership event on ring 2264: memb=3, new=0, lost=0</div><div>May 03 10:46:29 corosync [pcmk ] info: pcmk_peer_update: memb: vme6c794899e 83891884</div><div>May 03 10:46:29 corosync [pcmk ] info: pcmk_peer_update: memb: vmc9d15655fe 151000748</div><div>May 03 10:46:29 corosync [pcmk ] info: pcmk_peer_update: memb: vm5e42438470 184555180</div><div>May 03 10:46:29 corosync [pcmk ] notice: pcmk_peer_update: Stable membership event on ring 2264: memb=3, new=0, lost=0</div><div>May 03 10:46:29 corosync [pcmk ] info: pcmk_peer_update: MEMB: vme6c794899e 83891884</div><div>May 03 10:46:29 corosync [pcmk ] info: pcmk_peer_update: MEMB: vmc9d15655fe 151000748</div><div>May 03 10:46:29 corosync [pcmk ] info: pcmk_peer_update: MEMB: vm5e42438470 184555180</div><div>May 03 10:46:29 corosync [TOTEM ] A processor joined or left the membership and a new membership was formed.</div><div>May 03 10:46:29 corosync [CPG ] chosen downlist: sender r(0) ip(172.22.0.5) ; members(old:3 left:0)</div><div>May 03 10:46:29 corosync [MAIN ] Completed service synchronization, ready to provide service.</div><div><br></div><div>May 03 10:46:41 corosync [pcmk ] notice: pcmk_peer_update: Transitional membership event on ring 2268: memb=3, new=0, lost=0</div><div>May 03 10:46:41 corosync [pcmk ] info: pcmk_peer_update: memb: vme6c794899e 83891884</div><div>May 03 10:46:41 corosync [pcmk ] info: pcmk_peer_update: memb: vmc9d15655fe 151000748</div><div>May 03 10:46:41 corosync [pcmk ] info: pcmk_peer_update: memb: vm5e42438470 184555180</div><div>May 03 10:46:41 corosync [pcmk ] notice: pcmk_peer_update: Stable membership event on ring 2268: memb=3, new=0, lost=0</div><div>May 03 10:46:41 corosync [pcmk ] info: pcmk_peer_update: MEMB: vme6c794899e 83891884</div><div>May 03 10:46:41 corosync [pcmk ] info: pcmk_peer_update: MEMB: vmc9d15655fe 151000748</div><div>May 03 10:46:41 corosync [pcmk ] info: pcmk_peer_update: MEMB: vm5e42438470 184555180</div><div>May 03 10:46:41 corosync [TOTEM ] A processor joined or left the membership and a new membership was formed.</div><div>May 03 10:46:41 corosync [CPG ] chosen downlist: sender r(0) ip(172.22.0.5) ; members(old:3 left:0)</div><div>May 03 10:46:41 corosync [MAIN ] Completed service synchronization, ready to provide service.</div><div><br></div><div>May 03 10:46:54 corosync [pcmk ] notice: pcmk_peer_update: Transitional membership event on ring 2272: memb=3, new=0, lost=0</div><div>May 03 10:46:54 corosync [pcmk ] info: pcmk_peer_update: memb: vme6c794899e 83891884</div><div>May 03 10:46:54 corosync [pcmk ] info: pcmk_peer_update: memb: vmc9d15655fe 151000748</div><div>May 03 10:46:54 corosync [pcmk ] info: pcmk_peer_update: memb: vm5e42438470 184555180</div><div>May 03 10:46:54 corosync [pcmk ] notice: pcmk_peer_update: Stable membership event on ring 2272: memb=3, new=0, lost=0</div><div>May 03 10:46:54 corosync [pcmk ] info: pcmk_peer_update: MEMB: vme6c794899e 83891884</div><div>May 03 10:46:54 corosync [pcmk ] info: pcmk_peer_update: MEMB: vmc9d15655fe 151000748</div><div>May 03 10:46:54 corosync [pcmk ] info: pcmk_peer_update: MEMB: vm5e42438470 184555180</div><div>May 03 10:46:54 corosync [TOTEM ] A processor joined or left the membership and a new membership was formed.</div><div>May 03 10:46:54 corosync [CPG ] chosen downlist: sender r(0) ip(172.22.0.5) ; members(old:3 left:0)</div><div>May 03 10:46:54 corosync [MAIN ] Completed service synchronization, ready to provide service.</div><div><br></div><div>May 03 10:47:06 corosync [pcmk ] notice: pcmk_peer_update: Transitional membership event on ring 2276: memb=3, new=0, lost=0</div><div>May 03 10:47:06 corosync [pcmk ] info: pcmk_peer_update: memb: vme6c794899e 83891884</div><div>May 03 10:47:06 corosync [pcmk ] info: pcmk_peer_update: memb: vmc9d15655fe 151000748</div><div>May 03 10:47:06 corosync [pcmk ] info: pcmk_peer_update: memb: vm5e42438470 184555180</div><div>May 03 10:47:06 corosync [pcmk ] notice: pcmk_peer_update: Stable membership event on ring 2276: memb=3, new=0, lost=0</div><div>May 03 10:47:06 corosync [pcmk ] info: pcmk_peer_update: MEMB: vme6c794899e 83891884</div><div>May 03 10:47:06 corosync [pcmk ] info: pcmk_peer_update: MEMB: vmc9d15655fe 151000748</div><div>May 03 10:47:06 corosync [pcmk ] info: pcmk_peer_update: MEMB: vm5e42438470 184555180</div><div>May 03 10:47:06 corosync [TOTEM ] A processor joined or left the membership and a new membership was formed.</div><div>May 03 10:47:06 corosync [CPG ] chosen downlist: sender r(0) ip(172.22.0.5) ; members(old:3 left:0)</div><div>May 03 10:47:06 corosync [MAIN ] Completed service synchronization, ready to provide service.</div><div><br></div></div><div>My corosync version is :corosync-1.4.7-5.el6.x86_64</div></div><div><br></div><div>my corosync.conf is :</div><div><div>compatibility: whitetank</div><div>totem {</div><div> version: 2</div><div> secauth: off</div><div> threads: 0</div><div> interface {</div><div> member {</div><div> memberaddr: 172.22.0.5</div><div> }</div><div>member {</div><div> memberaddr: 172.22.0.9</div><div> }</div><div>member {</div><div> memberaddr: 172.22.0.11</div><div> }</div><div><br></div><div> bindnetaddr: 172.22.0.5</div><div><br></div><div> ringnumber: 0</div><div> mcastport: 5405</div><div> ttl: 1</div><div> }</div><div> transport: udpu</div><div> token: 10000</div><div> token_retransmits_before_loss_const: 10</div><div>}</div><div><br></div><div>logging {</div><div> fileline: off</div><div> to_stderr: yes</div><div> to_logfile: yes</div><div> to_syslog: no</div><div> logfile: /var/log/cluster/corosync.log</div><div> timestamp: on</div><div> logger_subsys {</div><div> subsys: AMF</div><div> debug: off</div><div> }</div><div>}</div><div>service {</div><div> name: pacemaker</div><div> ver: 1</div><div>}</div><div>amf {</div><div> mode: disabled</div></div><div>}</div><div><br></div><div>Appreciate any pointers on why this is happening and what is the solution.</div><div><br></div><div>Thanks</div><div>Prasad</div></div>