[Linux-HA] Question about openais rrp_mode

2009-12-16 Thread Alain.Moulle
Hi, > rrp_mode > This specifies the mode of redundant ring, which may > be none, > active, or passive. Active replication offers > slightly lower > latency from transmit to delivery in faulty network > environ- > ments but with l

Re: [Linux-HA] Question about risk of split-brain and risk of dual-fencing

2009-12-16 Thread Andrew Beekhof
On Wed, Dec 16, 2009 at 8:56 AM, Alain.Moulle wrote: >> No. It is a split-brain situation as soon as nodes can't >> communicate. >> > Ok, you're rigtht, in fact,  I wanted to talk about the risk of shared > resources mounted on both sides, which > is in fact the worst thing that could happen in ca

Re: [Linux-HA] Question about openais rrp_mode

2009-12-16 Thread Andrew Beekhof
perhaps try the openais mailing list rather than their competitor ;-) On Wed, Dec 16, 2009 at 9:18 AM, Alain.Moulle wrote: > Hi, >> rrp_mode >>               This specifies the mode of redundant ring, which may >> be  none, >>               active,  or  passive.  Active replication offers >> slig

Re: [Linux-HA] Switching after reboot

2009-12-16 Thread Andrew Beekhof
On Wed, Dec 16, 2009 at 8:48 AM, artur.k wrote: > I have built a cluster with two nodes on pacemacker 1.0.4 + DRBD (8.0.14). If > one machine is restarted after returning pacemacker trying to switch all > services to this server. How to prevent it? Set default-resource-stickiness to something h

[Linux-HA] crm_attribute syntax

2009-12-16 Thread 李森
-- 在线游戏技术部网管组 李森(Jason) POPO :listen1...@163.com Email:li...@corp.netease.com ___ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems

Re: [Linux-HA] Help required to develop OCF Resource Agent Script for Master-Slave script

2009-12-16 Thread Jessy
Andrew Beekhof-3 wrote: > > On Wed, Dec 2, 2009 at 5:23 AM, Jessy wrote: >>> Yes, but did you add a monitor action to the resource's definition in >>> the configuration? >>> >>> [Jessy] : I have added monitor operation defination in cib.xml with >>> certain interval time in cib.xml file as bel

Re: [Linux-HA] SLES 11 cluster members won't communicate

2009-12-16 Thread Dejan Muhamedagic
Hi, On Tue, Dec 15, 2009 at 09:52:14AM -0600, justin.kin...@academy.com wrote: > Hello everyone. > > I'm configuring a new 2 node cluster using SLES11 and the HAE using > openais 0.80.3-26.1 and pacemaker 1.0.3-4.1 > > The problem I'm having is that the nodes do not seem to find each other as

Re: [Linux-HA] SLES 11 cluster members won't communicate

2009-12-16 Thread justin . kinney
> > I'm configuring a new 2 node cluster using SLES11 and the HAE using > > openais 0.80.3-26.1 and pacemaker 1.0.3-4.1 > > > > The problem I'm having is that the nodes do not seem to find each other as > > the documentation says they should. > > > > Here's a brief rundown of what I've done: > > >

Re: [Linux-HA] SLES 11 cluster members won't communicate

2009-12-16 Thread Michael Schwartzkopff
Am Mittwoch, 16. Dezember 2009 14:43:33 schrieb justin.kin...@academy.com: > > > I'm configuring a new 2 node cluster using SLES11 and the HAE using > > > openais 0.80.3-26.1 and pacemaker 1.0.3-4.1 > > > > > > The problem I'm having is that the nodes do not seem to find each > > other as > > > > t

Re: [Linux-HA] Question about risk of split-brain and risk of dual-fencing

2009-12-16 Thread Dejan Muhamedagic
Hi, On Wed, Dec 16, 2009 at 08:56:00AM +0100, Alain.Moulle wrote: > Hi Dejan, and thanks for responses, > yet several remarks below ... > Alain > > Hi, > > > > > > I'm trying to clearly evaluate the risk of split brain and the risk of > > > dual-fencing with pacemaker/openais in > > > the case I

Re: [Linux-HA] SLES 11 cluster members won't communicate

2009-12-16 Thread justin . kinney
> > I've captured some packets using tcpdump, and indeed, I never see the > > multicast traffic being received, only sent. The odd thing is that these > > machines respond to other multicast traffic, like pinging 224.0.0.1. > > > > Is there a kernel option that anyone is aware of that could be ca

Re: [Linux-HA] Switching after reboot

2009-12-16 Thread Artur Kamiński
Andrew Beekhof pisze: > On Wed, Dec 16, 2009 at 8:48 AM, artur.k wrote: > >> I have built a cluster with two nodes on pacemacker 1.0.4 + DRBD (8.0.14). >> If one machine is restarted after returning pacemacker trying to switch all >> services to this server. How to prevent it? >> > > Set

Re: [Linux-HA] SLES 11 cluster members won't communicate

2009-12-16 Thread Darren.Mansell
Not anything to do with this is it? https://lists.linux-foundation.org/pipermail/openais/2007-November/00947 8.html -Original Message- From: linux-ha-boun...@lists.linux-ha.org [mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of justin.kin...@academy.com Sent: 16 December 2009 16:0

Re: [Linux-HA] SLES 11 cluster members won't communicate

2009-12-16 Thread justin . kinney
> Not anything to do with this is it? > https://lists.linux-foundation.org/pipermail/openais/2007-November/00947 > 8.html It looks like it is an issue with Cisco catalyst switches (we are using catalyst 3750s). The resolution to the problem is documented here in case anyone is interested: htt

Re: [Linux-HA] Xen live migration and constraints - hb_report

2009-12-16 Thread Andrew Beekhof
On Fri, Dec 11, 2009 at 11:28 AM, Andrew Beekhof wrote: > On Fri, Dec 11, 2009 at 2:17 AM, infernix wrote: >> Are these location constraints conflicting with the order constraints? I >> mean, the cluster shouldn't care where they [start|migrate_to], as long as >> they [start|migrate_to] in order,