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hi everybody, would you know if 8 version is going to have HA solutions from clusterlabs.org available, just like Centos7 has? (from Centos' own repos/streams) many thanks, L.

hi everyone to experts, all experienced sambians - when one uses HA cluster one deems CTDB needless, redundant? Or you somehow team those two together? Or maybe ctdb is so superior that it is ruling this domain and if HA exists it leaves Samaba to ctdb? many thanks, L.

...ut cman + rgmanager for pacemaker. The commands change, but the concepts don't. Also, we use DRBD but you can conceptually swap that for "SAN" and the logic is the same (though I would argue that a SAN is less reliable). There is an active mailing list for HA clustering, too: http://clusterlabs.org/mailman/listinfo/users > My configuration so fare includes: > > * SAN Storage Volumes for raw device mappings for guest vms (single volume per guest). > * multipathing of iSCSI and Infiniband paths to raw devices > * live migration of guests works > * a cluster configur...

Hello , Centos users: My name is Leandro, I have been using Centos for 4 years and this is the first post in this mail list. I would like to study and introduce myself in clustering and high availability for Centos, currently I have not experience at all about it. I would like to ask about the newest method to achieve high availability , load balancing on linux / Centos. So far I have seen the

Bonjour, J''aimerai mettre en place un cluster sous Xen ou XenServer avec 2 serveurs dell R 710. J''aimerai pouvoir monter un cluster en utilisant l''espace disque entiere des 2 serveurs cumulés ainsi que la mémoire Quelles sont vos retour d''expériences et vos configurations? Merci d''avance Cordialement Mat

...Pacemaker hooks recently. This patch: - Reuses more code from the Pacemaker libraries - Escalates fencing to the cluster manager instead of initiating it directly Attached patch is against master, or you can pull the original patch which is against an older version used by SUSE: http://git.clusterlabs.org/?p=ocfs2-tools.git;a=commit;h=dfc25180085c160baff412eb7423c6285cb166a9 regards, Andrew -------------- next part -------------- A non-text attachment was scrubbed... Name: pacemaker-hooks.patch Type: application/octet-stream Size: 12632 bytes Desc: not available Url : http://oss.oracle.com/p...

...t for > "SAN" and the logic is the same (though I would argue that a SAN is less > reliable). In what way is the SAN method less reliable? Am I going to get into a world of trouble going that way? > > There is an active mailing list for HA clustering, too: > > http://clusterlabs.org/mailman/listinfo/users I've had a brief look at the web-site. Lots of good info there. Thanks! > >> My configuration so fare includes: >> >> * SAN Storage Volumes for raw device mappings for guest vms (single volume per guest). >> * multipathing of iSCSI and...

Hi, I have two KVM hosts (CentOS 7) and would like them to operate as High Availability servers, automatically migrating guests when one of the hosts goes down. My question is: Is this even possible? All the documentation for HA that I've found appears to not do this. Am I missing something? My configuration so fare includes: * SAN Storage Volumes for raw device mappings for guest vms

I've been trying to build a model cluster using three virtual machines on my home server. Each VM boots off its own dedicated partition (CentOS 7.3). One partition is designated to be the common /home partition for the VMs, (on the real machine it will mount as /cluster). I'm intending to run GFS2 on the shared partition, so I need to configure DLM and corosync. That's where I'm

...1 crmd: error: crm_abort: pcmkRegisterNode: Triggered assert at xml.c:594 : node->type == XML_ELEMENT_NODE They seem to be related with the drbd resource, but do not cause any functional problem it seems. For this particular problem I found the following patch: <https://github.com/ClusterLabs/pacemaker/commit/68c7506aa84c69e5f425ef5f3025a9efb41d13da> Are these already known bugs? (I searched the CentOS bugzilla site but couldn't find any ticket describing these bugs) Any advise on if or where I should report it? Thanks! - - andreas - -- Andreas Haumer...

Hi all, We are currently running a NFS-based server centric setup. I would like to set up something where I can easily have more than one redundant server, security/authentication (this part seems a little flaky with NFS, at least did several years ago), with the capability to easily add/remove servers as necessary, take redundant servers down for maintenance, etc. Total volume we expect to run

Hi, I cannot 'halt' my CentOS 6 servers while running corosync+pacemaker. I believe the runlevels used to stop corosync and pacemaker are not in the correct order and create the infinite "Waiting for corosync services to unload..." loop thing. This is my first time with this cluster technology but apparently pacemaker has to be stopped /before/ corosync. Applying the following

Hello, from SAMBA 4.9/4.10 there was a big change regarding CTDB. Does anyone have an example configuration, how to configure a CTDB cluster from version 4.10? Is there someone who run CTDB with SAMBA 4.10? Best regards Micha

Greetings - Hoping to hear from hunner or one of the other maintainers of the puppetlabs corosync module - there is a note on the git project page that there is currently no way to configure STONITH. Is this information current? If so, has anybody come up with a simple method of managing STONITH with corosync via puppet? -- You received this message because you are subscribed to the

Hi, I recently configured Linux HA for Asterisk service (using Asterisk resource agent downloaded from link: https://github.com/ClusterLabs/resource-agents/blob/master/heartbeat/asterisk ). As per configuration it is working good but when I include "monitor_sipuri=" sip:42 at 10.3.152.103" " parameter in primitive section it is giving me an errors like listed below; root at asterisk2 ~> crm_mon -1 ============...

I have seen many references online to being able to use OCFS2 with Pacemaker, but the documentation I have been able to find is very Sparse. I have kernel 2.6.29, and the latest DLM and Pacemaker (using openais) and OCFS2-Tools from GIT. (As of June 13). I was able to build ocfs2_controld.pcmk ... (With some minor changes to the makefile for my install) I noticed the OCF version of o2cb is not

...sources job. if Filesystem RA doesn't apply monitor_[10|20] level, a readonly fs (not panic then generate a coredump) could give administrator more info to locate the rootcause. I write above base on gfs2 fstest result: gfs2 doesn't panic for the ocfs2 panic cases. [1]: https://github.com/ClusterLabs/resource-agents/blob/main/heartbeat/Filesystem > > >> > >>>> BTW, the basic rule here is, we don't want to change journal to prevent > >>>> other nodes corrupting the filesystem. > >>> > >>> If my memory is correct, every node...

Hi everybody, as discussed and agreed at the Cluster Summit we need to split our tree to make life easier in the long run (etc. etc.). We need to decide how we want to do it and there are different approaches to that. I was able to think of 3. There might be more and I might not have taken everything into consideration so comments and ideas are welcome. At this point we haven't really

...t apply monitor_[10|20] level, a readonly fs (not panic > then generate a coredump) could give administrator more info to locate the > rootcause. > > I write above base on gfs2 fstest result: gfs2 doesn't panic for the ocfs2 panic > cases. > > [1]: > https://github.com/ClusterLabs/resource-agents/blob/main/heartbeat/Filesystem > Agree, so a more elegant way is to make the journal abort node behaves like node down, e.g. set hard readonly so that heartbeat also can not update normally. In xfstests, it uses device mapper to simulate disk down, so it will also trigger nod...

...Aug 18 13:12:31 nodo1 cluster-dlm: set_fs_notified: set_fs_notified no nodeid 1812048064#012 ............................... and so on with the same messages until other node fence it. I've searched on internet some info but nobody has the same problem. I've tried to post the same error to clusterlabs mailing list without answer. I've notice that if I remove the FC cable from the node in error the log messages stops, so I suppose is some problem due lock manager+ocfs2 and network problem. Could someone help me? Regards, Roberto.