Hi, On Thu, Apr 19, 2012 at 2:11 PM, Parshvi <parshvi...@gmail.com> wrote: > Major issues: > 1) Corosync reaching over 100% cpu usage. > 2) Corosync unable to stop gracefully. > 3) Virtual IP of a resources being assigned as the primary IP on a interface, > after a cable disconnect/reconnect on that interface. The static IP on the > interface shown as global secondary IP. > > Use case: > 1) Two nodes in a cluster. > 2) Two communication paths exists between the two nodes, with “rrp_mode” set > to > active in corosync.conf
Are both links of the same speed? > a. One path is a back-to-back connection between the nodes. > b. Second is via the LAN network switch. > 3) The network cable was unplugged on one of the nodes for a while (on both > the > interfaces). It was reconnected after a short while. > > Observations: > 1) Corosync service was taking 100% cpu on the node whose link was down: What version of Corosync? What OS? > a. In the above scenario Corosync service could not be stopped gracefully. A > SIGKILL had to be issued to stop the service. > b. On this node, of the two interfaces configured in corosync.conf, one was > being used for the Virtual IP’s preferred eth. > i. It was observed that when the link was up after a disconnection, the > primary global IP on that interface was the Virtual IP configured for a > resource. > ii. The static IP assigned to the interface was listed as “scope global > secondary” in the output of `ip addr show`. > iii. Also the Virtual IP of the resources configured in pacemaker were > active on both the nodes. Can you pastebin.com your crm configure show? > iv. `service network restart` also did not work. > c. Coroysnc service was stopped (Killed since it could not be stopped), the > network service was re-started and then corosync was re-started. All good > after > this. > > > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org -- Dan Frincu CCNA, RHCE _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
