> > On Wednesday, February 4, 2015, Andrea <a.bacchi@... > > <mailto:a.bacchi@...>> wrote: > > > > Digimer <lists <at> ...> writes: > > > > > > > > That fence failed until the network came back makes your fence method > > > less than ideal. Will it eventually fence with the network still > > failed? > > > > > > Most importantly though; Cluster resources blocked while the > > fence was > > > pending? If so, then your cluster is safe, and that is the most > > > important part. > > > > > Hi Digimer > > > > I'm using for fencing a remote NAS, attached via iscsi target. > > During network failure, for example on node2, each node try to fence > > other node. > > Fencing action on node1 get success, but on node2 fail, because it > > can't see > > iscsi target(network is down!) . > > I thinks it's the reason why node2 doesn't reboot now, because it > > can't make > > operation on key reservation and watchdog can't check for this. > > When network come back, watchdog can check for key registration and > > reboot > > node2. > > > > For clustered filesystem I planned to use ping resource with location > > constraint as described here > > http://clusterlabs.org/doc/en-US/Pacemaker/1.0/html/Pacemaker_Explained/ch09s03s03s02.html > > If the node can't see iscsi target..then..stop AppServer, Filesystem ecc > > > > But it doesn't works. In the node with network failure i see in the > > log that > > pingd is set to 0 but Filesystem resource doesn't stop. > > > > I will continue testing... > > > > Thanks > > Andrea > > > > > >
Hi I test location constraint with ping resource to stop resource on disconnected node, but with stonith active, doesn't works I used dummy resource for test [ONE]pcs resource create mydummy ocf:pacemaker:Dummy op monitor interval=120s --clone Ping resource [ONE] pcs resource create ping ocf:pacemaker:ping dampen=5s multiplier=1000 host_list=pingnode --clone Location Constraint [ONE]pcs constraint location mydummy rule score=-INFINITY pingd lt 1 or not_defined pingd If the pingnode became not visible on node2, I will see pingd attribute on node2 set to 0 and dummy resources stop on node2. If I cut off nentire network on node2, I will see pingd attribute on node2 set to 0 bud dummy resource never stop. During network failure...stonith agent is active and try to fence node 1 without success. Why? Is the failed fence action that block location constraint? Andrea _______________________________________________ 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
