Friday, 2016-02-05

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openstackgerritvenkatamahesh proposed openstack/ha-guide: Fix exact link for home-page  https://review.openstack.org/27668911:21
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openstackgerritBogdan Dobrelya proposed openstack/ha-guide: Add libqb0 package to the corosync setup guide  https://review.openstack.org/27672813:31
openstackgerritBogdan Dobrelya proposed openstack/ha-guide: [ha-guide] Update rabbitmqctl join_cluster  https://review.openstack.org/27673513:44
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openstackgerritBogdan Dobrelya proposed openstack/ha-guide: Add a link to RHEL docs for pacemaker cluster setup  https://review.openstack.org/27674314:02
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bogdandoddeja, that's great!14:08
ddejabogdando: thanks :)14:10
bogdandoddeja, is https://bugs.launchpad.net/mistral/+bug/1535295 a blocker on the way from PoC to the recommended solution?14:11
openstackLaunchpad bug 1535295 in Mistral "Task with join runs more than once" [Undecided,New]14:11
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bogdandoddeja, I'm just wondering why it blocks things. AFAIK, the STONITH invariants assume tasks idempotency, like fence(off)=off, therefore shall not break things if repeated...14:13
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ddejabogdando: Theoritically it is not blocking - when you look at workflow https://github.com/gryf/mistral-evacuate/blob/separate-workflow/host-evacuate.yaml this bug will result in running 'filter_vms' and 'evacuate_vms' two times14:25
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ddejafirst one is totaly idempotent, so it's no problem14:25
ddejasecond is also idempotent (nova can handle two evacuate request for same instance)14:25
ddejahowever14:26
ddejasecond run of 'evacaute_vms' for same vms would result in throwing an exception14:26
ddejawhich will result in putting workflow in error state14:26
ddejaso, for example, if we want to send e-mail on success for evacuate_vms, we would not be able to do so14:27
bogdandoWhich component throws?14:28
ddejanova client14:28
ddejaaction nova.serwers_evacuate is just a wrapper for nova-client14:28
bogdandoso nova services can handle two evacuate request, but client throws, correct?14:28
ddejayes, if you try to evacuate VMs that is beeing evacuated at the moment, you will got an exception14:29
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openstackgerritMerged openstack/ha-guide: Add libqb0 package to the corosync setup guide  https://review.openstack.org/27672821:37
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