> -----Original Message----- > From: Digimer [mailto:[email protected]] > Sent: Monday, 3 November 2014 3:26 AM > To: The Pacemaker cluster resource manager; Alex Samad - Yieldbroker > Subject: Re: [Pacemaker] stonith q > > On 02/11/14 06:45 AM, Andrei Borzenkov wrote: > > В Sun, 2 Nov 2014 10:01:59 +0000 > > Alex Samad - Yieldbroker <[email protected]> пишет: > > > >> > >> > >>> -----Original Message----- > >>> From: Digimer [mailto:[email protected]] > >>> Sent: Sunday, 2 November 2014 9:49 AM > >>> To: The Pacemaker cluster resource manager > >>> Subject: Re: [Pacemaker] stonith q > >>> > >>> On 01/11/14 06:27 PM, Alex Samad - Yieldbroker wrote: > >>>> Hi {snip} > > > > That hardly makes sense except in pure test environment. Stonith is > > needed when you do not know state of partner node, in which case you > > cannot be sure your reboot/shutdown command will be executed, nor that > > you can reach your partner at all. > > > > If you are running under Vmware, use stonith/vmware or stonith/vcenter. > > Andrei is correct. A stonith method must be external to the node and work > regardless of the state of a node. Try this; 'echo c > /proc/sysrq-trigger' > will > crash the node. Any stonith method that requires the OS to respond will fail > and your cluster will hang.
Yes but vmware will restart the node in that circumstance. I have had issues with my 2 node cluster where 1 node will remove itself because of lack of communication. Very hard to track down when it happens every now and then and only at 1am, I believe because of backup traffic or because its starved of cpu cycles. What I would like to see happen in that situation if for a reboot to be issued, I know that the node would respond and I know that it would reconnect. I read that there was a suicide option module that did what I wanted but its not available. I don't want to setup useid for vmware for each node and configure that. I just want fenced to do a reboot via the os of the node instead of just killing cman What I am hearing is that its not available. Is it possible to hook to a custom script on that event, I can write my own restart > > -- > Digimer > Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is > trapped in the mind of a person without access to education? _______________________________________________ Pacemaker mailing list: [email protected] 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
