Hello, On 12/21/2011 03:34 AM, Qiu Zhigang wrote: > Hi > > >> -----Original Message----- >> From: Andreas Kurz [mailto:andr...@hastexo.com] >> Sent: Wednesday, December 21, 2011 6:53 AM >> To: pacemaker@oss.clusterlabs.org >> Subject: Re: [Pacemaker] How should I configure the STONITH? >> >> Hello, >> >> On 12/20/2011 05:01 AM, Qiu Zhigang wrote: >>> Hi, >>> >>>> -----Original Message----- >>>> From: Andreas Kurz [mailto:andr...@hastexo.com] >>>> Sent: Monday, December 19, 2011 6:50 PM >>>> To: pacemaker@oss.clusterlabs.org >>>> Subject: Re: [Pacemaker] How should I configure the STONITH? >>>> >>>> Hello, >>>> >>>> On 12/19/2011 08:31 AM, Qiu Zhigang wrote: >>>>> Hi all, >>>>> >>>>> I want to configure the STONITH, but I couldn't find the following >>>>> CLI described in the reference material (like >>>>> Pacemaker-1.1-Pacemaker_Explained-en-US.pdf). >>>>> >>>>> stonith -L >>>>> stonith -t ibmhmc -n >>>>> stonith -t apcmaster -h >>>>> >>>>> I only found the stonith_admin command, but when I execute this cli, >>>>> some problem occurred. >>>>> >>>>> [root@h10_151 ~]# stonith_admin -L >>>>> stonith_admin[14402]: 2011/12/19_15:29:20 info: crm_log_init_worker: >>>>> Changed active directory to /var/lib/heartbeat/cores/root >>>>> stonith_admin[14402]: 2011/12/19_15:29:20 notice: log_data_element: >>>>> st_callback: st_notify_disconnect <notify t="st_notify" >>>>> subt="st_notify_disconnect" /> >>>>> >>>>> What's the reason of this problem ? >>>>> >>>>> Moreover I didn't find the stonith plugins, which rpm package >>>>> contain the stonith plugins ? I use the redhat 6, pacemaker version >>>>> is pacemaker-1.1.2-7.el6.x86_64.rpm. >>>> >>>> RHEL6 and derivates ship "fence-agents" package known from it's >>>> redaht-cluster and not the stonith agents ... the agents are all >>>> named "fence_*' and come with nice man-pages. >>>> >>>> You can use them (nearly) like the stonith agents that used to come >>>> with Pacemaker as prerequisite. >>> >>> Thank you, but I'm doubt the way of configure fence-agents in pacemaker. >>> Could I configure like following? If this isn't right, please point me >>> the right way, thank you. >>> >>> configure >>> primitive st-apc stonith: fence_apc \ >>> params ip="xx.xx.xx.xx" username="admin" password="password" >>> clone fencing st-apc >>> commit >> >> try something like this for the primitive: >> >> primitive st-apc stonith:fence_apc \ >> params ipaddr="xx.xx.xx.xx" login="admin" passwd="password" \ >> action="reboot" port="dummy" pcmk_host_list="node1 node2" \ >> pcmk_host_map="node1:1,node2:2" pcmk_host_check="static-list" >> >> "man stonithd" and "man fence_apc" should also be helpful >> > Thank you, I'll try. > >>> >>> Another question is about Quorum device, which component is the quorum >>> device in pacemaker, like qdisk in CMAN, is SBD? >> >> corosync or heatbeat CCM do this job for Pacemaker ... deliver node > availability >> information so Pacemaker can calculate quorum based on node count. >> > But how to process the split-brain with 2-nodes ? In cman we could use qdisk > to > arbitrate the quorum node, what about the corosync+pacemaker?
You have to configure stonith and ignore quorum ... if you really run into a split-brain, one node will be faster in fencing the other node ... see http://ourobengr.com/ha for some hints to not run into a reboot cycle. You could use redundant rings for corosync communication to lower risk of split-brain and/or add e.g. an extra "quorum" node. Regards, Andreas -- Need help with Pacemaker? http://www.hastexo.com/now > >> Regards, >> Andreas >> >> -- >> Need help with Pacemaker? >> http://www.hastexo.com/now >> >>> >>> >>> Best Regards, >>> Qiu Zhigang >>>> >>>> Regards, >>>> Andreas >>>> >>>> -- >>>> Need help with Pacemaker? >>>> http://www.hastexo.com/now >>>> >>>>> >>>>> >>>>> Best Regards, >>>>> >>>>> >>>>> _______________________________________________ >>>>> 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 >>>> >>>> >>> >>> >>> >>> _______________________________________________ >>> 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 >> > > > > _______________________________________________ > 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
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_______________________________________________ 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
