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<meta http-equiv="Content-Type" content="text/html;charset=utf-8"></head><body><div class="GroupWiseMessageBody" id="GroupWiseSection_1611741413000_Ulrich.Windl@rz.uni-regensburg.de_DE2C7590129600009A2986C8FF4E000A_"><div><div>Hi!</div><div><br></div><div>I wanted to reboot one node (h18) of our 3-node cluster, so I did this remotely from h16:</div><div>h16:~ # ssh rksaph18 crm cluster stop</div><div>INFO: Cluster services stopped</div><div><br></div><div>Unfortunately I wasn't aware that the other node (h19) wasn't running cluster services, too, so the quorum will be lost.</div><div>Firs it looks OK, but then h16 had been fenced. h18 had been DC before.</div><div>Here are the logs around the time when h18 stopped cluster services:</div><div><br></div><div><font face="Courier New" size="2">Jan 27 10:42:01 h16 pacemaker-execd[25960]: notice: executing - rsc:prm_stonith_sbd action:start call_id:96<br>Jan 27 10:42:03 h16 pacemaker-execd[25960]: notice: prm_stonith_sbd start (call 96) exited with status 0 (execution time 1985ms, queue time 15001ms)<br>Jan 27 10:42:03 h16 pacemaker-controld[25963]: notice: Result of start operation for prm_stonith_sbd on h16: ok<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: Result of monitor operation for prm_stonith_sbd on h16: ok<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: Our peer on the DC (h18) is dead<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: State transition S_NOT_DC -> S_ELECTION<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: State transition S_ELECTION -> S_INTEGRATION<br>Jan 27 10:42:05 h16 pacemaker-attrd[25961]: notice: Lost attribute writer h18<br>Jan 27 10:42:05 h16 pacemaker-attrd[25961]: notice: Node h18 state is now lost<br>Jan 27 10:42:05 h16 pacemaker-attrd[25961]: notice: Removing all h18 attributes for peer loss<br>Jan 27 10:42:05 h16 pacemaker-attrd[25961]: notice: Purged 1 peer with id=118 and/or uname=h18 from the membership cache<br>Jan 27 10:42:05 h16 pacemaker-attrd[25961]: notice: Recorded local node as attribute writer (was unset)<br>Jan 27 10:42:05 h16 pacemaker-fenced[25959]: notice: Node h18 state is now lost<br>Jan 27 10:42:05 h16 pacemaker-fenced[25959]: notice: Purged 1 peer with id=118 and/or uname=h18 from the membership cache<br>Jan 27 10:42:05 h16 pacemaker-based[25958]: notice: Node h18 state is now lost<br>Jan 27 10:42:05 h16 pacemaker-based[25958]: notice: Purged 1 peer with id=118 and/or uname=h18 from the membership cache<br>Jan 27 10:42:05 h16 corosync[25949]: [TOTEM ] A new membership (172.20.16.16:42344) was formed. Members left: 118<br>Jan 27 10:42:05 h16 corosync[25949]: [CPG ] downlist left_list: 1 received<br>Jan 27 10:42:05 h16 corosync[25949]: [QUORUM] This node is within the non-primary component and will NOT provide any services.<br>Jan 27 10:42:05 h16 corosync[25949]: [QUORUM] Members[1]: 116<br>Jan 27 10:42:05 h16 kernel: dlm: closing connection to node 118<br>Jan 27 10:42:05 h16 corosync[25949]: [MAIN ] Completed service synchronization, ready to provide service.<br>Jan 27 10:42:05 h16 pacemakerd[25957]: warning: Quorum lost<br>Jan 27 10:42:05 h16 pacemakerd[25957]: notice: Node h18 state is now lost<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: warning: Quorum lost<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: Node h18 state is now lost<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: warning: Stonith/shutdown of node h18 was not expected<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: Updating quorum status to false (call=129)<br>Jan 27 10:42:05 h16 pacemaker-controld[25963]: notice: Updating quorum status to false (call=142)<br>Jan 27 10:42:05 h16 corosync[25949]: [TOTEM ] Automatically recovered ring 1<br>Jan 27 10:42:06 h16 sbd[25937]: warning: inquisitor_child: pcmk health check: UNHEALTHY<br>Jan 27 10:42:06 h16 sbd[25937]: warning: inquisitor_child: Servant pcmk is outdated (age: 523664)<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: Watchdog will be used via SBD if fencing is required and stonith-watchdog-timeout is nonzero<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: warning: Fencing and resource management disabled due to lack of quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_stonith_sbd ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_DLM:0 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_virtlockd:0 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_lockspace_raid_md10:0 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_lockspace_ocfs2:0 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_CFS_VMI:0 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_cron_snap_v02 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_cron_snap_test-jeos1 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_cron_snap_test-jeos2 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_cron_snap_test-jeos3 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_cron_snap_test-jeos4 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_xen_test-jeos1 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_xen_test-jeos2 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_xen_test-jeos3 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: * Stop prm_xen_test-jeos4 ( h16 ) due to no quorum<br>Jan 27 10:42:06 h16 pacemaker-schedulerd[25962]: notice: Calculated transition 0, saving inputs in /var/lib/pacemaker/pengine/pe-input-43.bz2<br>Jan 27 10:42:06 h16 pacemaker-controld[25963]: notice: Processing graph 0 (ref=pe_calc-dc-1611740526-14) derived from /var/lib/pacemaker/pengine/pe-input-43.bz2<br>Jan 27 10:42:06 h16 pacemaker-controld[25963]: notice: Initiating stop operation prm_stonith_sbd_stop_0 locally on h16<br>Jan 27 10:42:16 h16 dlm_controld[26304]: 523675 fence work wait for quorum<br>Jan 27 10:42:18 h16 Filesystem(prm_CFS_VMI)[11564]: INFO: Running stop for /dev/disk/by-id/dm-name-VMI-PM on /cfs/VMI<br>Jan 27 10:42:18 h16 Filesystem(prm_CFS_VMI)[11594]: INFO: Trying to unmount /cfs/VMI<br>Jan 27 10:42:18 h16 systemd[1]: Stopping Virtualization daemon...<br>Jan 27 10:42:18 h16 kernel: dlm: 790F9C237C2A45758135FE4945B7A744: leaving the lockspace group...<br>Jan 27 10:42:18 h16 systemd[1]: Stopped Virtualization daemon.<br>Jan 27 10:42:18 h16 systemd[1]: Stopping Virtual machine lock manager...<br>Jan 27 10:42:18 h16 systemd[1]: Stopped Virtual machine lock manager.<br>Jan 27 10:42:18 h16 systemd[1]: Closed Virtual machine lock manager admin socket.<br>Jan 27 10:42:18 h16 systemd[1]: Closed Virtual machine lock manager socket.<br>Jan 27 10:42:20 h16 pacemaker-controld[25963]: notice: Result of stop operation for prm_virtlockd on h16: ok<br>Jan 27 10:42:20 h16 pacemaker-controld[25963]: notice: Initiating stop operation prm_lockspace_ocfs2_stop_0 locally on h16<br>Jan 27 10:42:20 h16 pacemaker-execd[25960]: notice: executing - rsc:prm_lockspace_ocfs2 action:stop call_id:131<br>Jan 27 10:42:20 h16 Filesystem(prm_lockspace_ocfs2)[11643]: INFO: Running stop for /dev/md10 on /var/lib/libvirt/lockd<br>Jan 27 10:42:21 h16 Filesystem(prm_lockspace_ocfs2)[11668]: INFO: Trying to unmount /var/lib/libvirt/lockd<br>Jan 27 10:43:13 h16 dlm_controld[26304]: 523732 790F9C237C2A45758135FE4945B7A744 wait for quorum<br>Jan 27 10:43:48 h16 pacemaker-execd[25960]: warning: prm_CFS_VMI_stop_0 process (PID 11502) timed out<br>Jan 27 10:43:48 h16 kernel: dlm: 790F9C237C2A45758135FE4945B7A744: group event done -512 0<br>Jan 27 10:43:48 h16 kernel: dlm: 790F9C237C2A45758135FE4945B7A744: group leave failed -512 0<br>Jan 27 10:43:48 h16 kernel: dlm: 790F9C237C2A45758135FE4945B7A744: release_lockspace final free<br>Jan 27 10:43:48 h16 kernel: dlm: A53F83720CCF4CCA877BE1E60F6F507D: leaving the lockspace group...<br>Jan 27 10:43:48 h16 pacemaker-execd[25960]: warning: prm_CFS_VMI_stop_0[11502] timed out after 90000ms<br>Jan 27 10:43:48 h16 pacemaker-execd[25960]: notice: prm_CFS_VMI stop (call 129, PID 11502) exited with status 1 (execution time 90007ms, queue time 0ms)<br>Jan 27 10:43:48 h16 pacemaker-controld[25963]: error: Result of stop operation for prm_CFS_VMI on h16: Timed Out<br>Jan 27 10:43:48 h16 ocfs2_hb_ctl[11728]: ocfs2_hb_ctl /sbin/ocfs2_hb_ctl -K -u 790F9C237C2A45758135FE4945B7A744<br>Jan 27 10:43:48 h16 pacemaker-controld[25963]: notice: Transition 0 aborted by operation prm_CFS_VMI_stop_0 'modify' on h16: Event failed<br>Jan 27 10:43:48 h16 pacemaker-controld[25963]: notice: Transition 0 action 45 (prm_CFS_VMI_stop_0 on h16): expected 'ok' but got 'error'<br>Jan 27 10:43:48 h16 pacemaker-attrd[25961]: notice: Setting fail-count-prm_CFS_VMI#stop_0[h16]: (unset) -> INFINITY<br>Jan 27 10:43:48 h16 pacemaker-attrd[25961]: notice: Setting last-failure-prm_CFS_VMI#stop_0[h16]: (unset) -> 1611740628<br>Jan 27 10:43:48 h16 kernel: ocfs2: Unmounting device (254,13) on (node 116)<br>Jan 27 10:43:48 h16 pacemaker-controld[25963]: notice: Transition 0 aborted by transient_attributes.116 'create': Transient attribute change<br>Jan 27 10:43:50 h16 pacemaker-execd[25960]: warning: prm_lockspace_ocfs2_stop_0 process (PID 11605) timed out<br>Jan 27 10:43:50 h16 pacemaker-execd[25960]: warning: prm_lockspace_ocfs2_stop_0[11605] timed out after 90000ms<br>Jan 27 10:43:50 h16 pacemaker-execd[25960]: notice: prm_lockspace_ocfs2 stop (call 131, PID 11605) exited with status 1 (execution time 90005ms, queue time 0ms)<br>Jan 27 10:43:50 h16 kernel: dlm: A53F83720CCF4CCA877BE1E60F6F507D: group event done -512 0<br>Jan 27 10:43:50 h16 kernel: dlm: A53F83720CCF4CCA877BE1E60F6F507D: group leave failed -512 0<br>Jan 27 10:43:50 h16 kernel: dlm: A53F83720CCF4CCA877BE1E60F6F507D: release_lockspace final free<br>Jan 27 10:43:50 h16 pacemaker-controld[25963]: error: Result of stop operation for prm_lockspace_ocfs2 on h16: Timed Out<br>Jan 27 10:43:50 h16 ocfs2_hb_ctl[11731]: ocfs2_hb_ctl /sbin/ocfs2_hb_ctl -K -u A53F83720CCF4CCA877BE1E60F6F507D<br>Jan 27 10:43:50 h16 pacemaker-controld[25963]: notice: Transition 0 action 39 (prm_lockspace_ocfs2_stop_0 on h16): expected 'ok' but got 'error'<br>Jan 27 10:43:50 h16 pacemaker-controld[25963]: notice: Transition 0 (Complete=23, Pending=0, Fired=0, Skipped=0, Incomplete=5, Source=/var/lib/pacemaker/pengine/pe-input-43.bz2): Complete<br>Jan 27 10:43:50 h16 pacemaker-attrd[25961]: notice: Setting fail-count-prm_lockspace_ocfs2#stop_0[h16]: (unset) -> INFINITY<br>Jan 27 10:43:50 h16 pacemaker-attrd[25961]: notice: Setting last-failure-prm_lockspace_ocfs2#stop_0[h16]: (unset) -> 1611740630<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Watchdog will be used via SBD if fencing is required and stonith-watchdog-timeout is nonzero<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Fencing and resource management disabled due to lack of quorum<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Unexpected result (error) was recorded for stop of prm_CFS_VMI:0 on h16 at Jan 27 10:42:18 2021<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Unexpected result (error) was recorded for stop of prm_CFS_VMI:0 on h16 at Jan 27 10:42:18 2021<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: We can fence h16 without quorum because they're in our membership<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Cluster node h16 will be fenced: prm_CFS_VMI:0 failed there<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Unexpected result (error) was recorded for stop of prm_lockspace_ocfs2:0 on h16 at Jan 27 10:42:20 2021<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Unexpected result (error) was recorded for stop of prm_lockspace_ocfs2:0 on h16 at Jan 27 10:42:20 2021<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Forcing cln_CFS_VMI away from h16 after 1000000 failures (max=1000000)<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Forcing cln_CFS_VMI away from h16 after 1000000 failures (max=1000000)<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Forcing cln_CFS_VMI away from h16 after 1000000 failures (max=1000000)<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_raid_md10:0 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_raid_md10:1 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_raid_md10:2 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_ocfs2:1 with instance of cln_lockspace_raid_md10<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_ocfs2:1 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_ocfs2:2 with instance of cln_lockspace_raid_md10<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_ocfs2:2 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_ocfs2:0 with instance of cln_lockspace_raid_md10<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_lockspace_ocfs2:0 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_virtlockd:0 with instance of cln_lockspace_ocfs2<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_virtlockd:1 with instance of cln_lockspace_ocfs2<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_virtlockd:2 with instance of cln_lockspace_ocfs2<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_CFS_VMI:1 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_CFS_VMI:2 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: Cannot pair prm_CFS_VMI:0 with instance of cln_DLM<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: We can fence h16 without quorum because they're in our membership<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: notice: We can fence h16 without quorum because they're in our membership<br>Jan 27 10:43:50 h16 pacemaker-schedulerd[25962]: warning: Scheduling Node h16 for STONITH</font><br></div><div><br></div><div>Up to the "<font face="Courier New" size="2">Members left: 118"<font face="Times New Roman" size="3"> everything looks normal. However "<font face="Courier New" size="2">warning: Stonith/shutdown of node h18 was not expected</font>" does not. </font></font></div><div>However while not having quorum, the node tries to stop resources. And that mostly works, until OCFS is going to be unmounted. That seems to wait for a quorum, eventually timing out.</div><div><br></div><div>Most importantly an earlier log message confirmed that h18 is going to be stopped:</div><div><font face="Courier New" size="2">Jan 27 10:41:46 h16 pacemaker-attrd[25961]: notice: Setting shutdown[h18]: (unset) -> 1611740506</font></div><div><br></div><div>Messages on h18:</div><div><font face="Courier New" size="2">Jan 27 10:41:46 h18 systemd[1]: Stopping Pacemaker High Availability Cluster Manager...</font></div><div><font face="Courier New" size="2">Jan 27 10:41:46 h18 pacemakerd[42331]: notice: Caught 'Terminated' signal<br>Jan 27 10:41:46 h18 pacemakerd[42331]: notice: Shutting down Pacemaker</font></div><div><font face="Courier New" size="2">...</font></div><div><font face="Courier New" size="2">Jan 27 10:41:46 h18 pacemaker-attrd[42335]: notice: Setting shutdown[h18]: (unset) -> 1611740506</font></div><div><font face="Courier New" size="2">...</font></div><div><font face="Courier New" size="2">Jan 27 10:41:46 h18 pacemaker-schedulerd[42336]: notice: Scheduling shutdown of node h18</font></div><div><font face="Courier New" size="2">...</font></div><div><font face="Courier New" size="2">Jan 27 10:42:05 h18 pacemakerd[42331]: notice: Shutdown complete</font></div><div><font face="Courier New" size="2">...</font></div><div><font face="Courier New" size="2">Jan 27 10:42:05 h18 corosync[26598]: Waiting for corosync services to unload:[ OK ]<br>Jan 27 10:42:05 h18 systemd[1]: Stopped Corosync Cluster Engine.<br>Jan 27 10:42:05 h18 sbd[42312]: warning: cleanup_servant_by_pid: Servant for /dev/disk/by-id/dm-name-SBD_1-3P1 (pid: 42317) has terminated<br>Jan 27 10:42:05 h18 sbd[42312]: warning: cleanup_servant_by_pid: Servant for /dev/disk/by-id/dm-name-SBD_1-3P2 (pid: 42318) has terminated<br>Jan 27 10:42:05 h18 systemd[1]: Stopped Shared-storage based fencing daemon.<br>Jan 27 10:42:05 h18 sshd[25751]: Received disconnect from 172.20.16.16 port 46118:11: disconnected by user<br>Jan 27 10:42:05 h18 sshd[25751]: Disconnected from user root 172.20.16.16 port 46118</font><br></div><div><br>Software is up-to-date SLES15 SP2:</div><div><font face="Courier New" size="2">pacemaker-2.0.4+20200616.2deceaa3a-3.3.1.x86_64<br>corosync-2.4.5-6.3.2.x86_64</font><br></div><div><br></div><div>The no-quorum policy is default (I couldn't find a setting). Obviously the policy is to stop resources on loss of quorum.</div><div>Wouldn't it be better to keep things ("freeze"), hoping for the best? If the other nodes can form a quorum, theid either join the cluster or fence the remaining node then...</div><div><br></div><div>I wonder what will happen from this state if one of the other nodes gets online again:</div><div><br></div><div><font face="Courier New" size="2">Node List:<br> * Node h18: UNCLEAN (offline)<br> * Node h19: UNCLEAN (offline)<br> * Online: [ h16 ]</font></div><div><br></div><div>Without quorum h16 does not fence the other nodes, so they will remain unclean. If the node becomes online again, h16 will probably see an unclean node, but then has a quorum, and it will first fence it, right? If so, is there a way to avoid that?</div><div><br></div><div>Actually that is what happened:</div><div><font face="Courier New" size="2">Jan 27 11:34:41 h16 pacemaker-schedulerd[7466]: warning: Scheduling Node h18 for STONITH<br>Jan 27 11:34:41 h16 pacemaker-schedulerd[7466]: notice: * Fence (reboot) h18 'node is unclean'</font><br><br></div><div>Finally: ;-)</div><div><br></div><div><font face="Courier New" size="2">Jan 27 11:35:14 h19 pacemaker-fenced[2099]: notice: Versions did not change in patch 0.250.39<br>Jan 27 11:36:43 h19 pacemaker-fenced[2099]: notice: Operation 'reboot' targeting h18 on h16 for </font><a href="mailto:pacemaker-controld.7467@h16.46c6f6cc"><font face="Courier New" size="2">pacemaker-controld.7467@h16.46c6f6cc</font></a><font face="Courier New" size="2">: OK<br>Jan 27 11:36:43 h19 pacemaker-fenced[2099]: error: stonith_construct_reply: Triggered assert at fenced_commands.c:2363 : request != NULL<br>Jan 27 11:36:43 h19 pacemaker-fenced[2099]: warning: Can't create a sane reply</font></div><div><br></div><div>Regards,</div><div>Ulrich</div><div><br><br><br><br></div><div><br></div></div></div></body></html>