-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 As you are using Multcast (MCAST) - could it be the case that the switch/LAN dropped all Multicast packages for some time? As lot of switches which are managed are dropping MCAST by default (at least I got that feedback from customers) it could be that your switch was either reconfigured for a time period or there was a fireware update?
Just my thoughts abou things happened at customer side. Fabian Herschel On 12/14/2012 06:31 AM, Muhammad Sharfuddin wrote: > node1(ailprd1) IP:192.168.7.11 node2(ailprd2) IP:192.168.7.12 > > Its a two node active/passive cluster, running perfectly since last > two months, but yesterday both nodes were fenced(rebooted). > Network connectivity b/w both nodes is perfect, and cluster is > running fine again. > > Help me know the reason behind the following situation, and how can > I avoid it happening next time: > > on node1(active node): Dec 13 12:31:06 ailprd1 corosync[7274]: > [TOTEM ] A processor failed, forming new configuration. Dec 13 > 12:31:12 ailprd1 corosync[7274]: [CLM ] CLM CONFIGURATION CHANGE > Dec 13 12:31:12 ailprd1 corosync[7274]: [CLM ] New Configuration: > Dec 13 12:31:13 ailprd1 corosync[7274]: [CLM ] r(0) > ip(192.168.7.11) Dec 13 12:31:13 ailprd1 corosync[7274]: [CLM ] > Members Left: Dec 13 12:31:13 ailprd1 corosync[7274]: [CLM ] r(0) > ip(192.168.7.12) > > on node2(passive node): Dec 13 12:31:05 ailprd2 corosync[7021]: > [TOTEM ] A processor failed, forming new configuration. Dec 13 > 12:31:11 ailprd2 corosync[7021]: [CLM ] CLM CONFIGURATION CHANGE > Dec 13 12:31:11 ailprd2 corosync[7021]: [CLM ] New Configuration: > Dec 13 12:31:11 ailprd2 corosync[7021]: [CLM ] r(0) > ip(192.168.7.12) Dec 13 12:31:11 ailprd2 corosync[7021]: [CLM ] > Members Left: Dec 13 12:31:11 ailprd2 corosync[7021]: [CLM ] r(0) > ip(192.168.7.11) > > for node1(ailprd1) node2 left, likewise node2(ailprd2) thinks that > node1 left. then node2 tries to start the resources which were > already running on node1, and both nodes were fenced. > > corosync.conf : totem { rrp_mode: none join: 60 max_messages: > 20 > vsftype: none consensus: 6000 secauth: off > token_retransmits_before_loss_const: 10 token: 5000 version: 2 > > interface { bindnetaddr: 192.168.7.0 mcastaddr: 224.0.0.116 > mcastport: 51234 ringnumber: 0 } clear_node_high_bit: yes } > logging > { to_logfile: no to_syslog: yes debug: off timestamp: off > to_stderr: no fileline: off syslog_facility: daemon > > } > > Regards, Muhammad Sharfuddin > > > _______________________________________________ Linux-HA mailing > list Linux-HA@lists.linux-ha.org > http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: > http://linux-ha.org/ReportingProblems > -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQEcBAEBAgAGBQJQywndAAoJEJ1uHhrzMvZRutAIAL4MW1q2hUPH6cU6Md4ZjSl2 T6C8c+LIjBCGjSIBwwFgMVbMqeB78n/IFUw5QcRkiZVAZ8rDaDEIcb28pJ88yQdu Fr+zkxO3jO30bVyo5KW0672KDYjTlJnUWjBWC+FdG5TSWyPHfnKQew06BwoQxqR+ ad4EUESJhKsRnobFkIZZHVUTXc4EUDn3U/zROh/c29k0JVblt3xip08bZLuaS7yg vBxOavCpWidvukhKdtnN1gOKsnhvqcHmz+yQlMM8Du03U7rcRQsA2ORruFoODh0l yY0hOWtVkgh7iVHdA3RZfMj2yAGQGSggIMHS7YA3k9J4/8cU1AfIOTUWxY61RI4= =egRI -----END PGP SIGNATURE----- _______________________________________________ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems