Hi All,
Does Pacemaker has any limit in terms of no. of RA ( maximum no. of RA that
can be configured in pacemaker cluster).
___
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Pacemaker@oss.clusterlabs.org
http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
>
> No.
> Neither type of resource allows you to place a specific instance on a
> particular node, this is by design.
That means we cant control any clone resource on individual node. either
all instances can be started or all can be stopped.
>
>
> The difference is that anonymous clones onl
Hi All,
can any one help me in understanding the difference between anonymous and
globally unique clone. anonymous Clones are supposed to behave identically
everywhere they are running but globally unique clone can behave differently
.
my understanding is, every resource agent has some sets of fu
On Tue, Mar 24, 2009 at 12:16 PM, Dominik Klein wrote:
> Glory Smith wrote:
> > Hi All,
> > when we create a resource , how pacemaker choose a node to start
> resource
> > on it.
> >
> > To be more clear , suppose we have four node cluster , we configure an
Hi All,
when we create a resource , how pacemaker choose a node to start resource
on it.
To be more clear , suppose we have four node cluster , we configure any
resource xx and we see that it is started on say , node C . so my
question is why node C is choosen to run the resource xx. is this
>
>
> Add more communication paths. Network cards are cheap these days.
need an advice , which stonith is recommended for production use. i have
heard , sbd , ssh are not good.
Thanks ,
>
>
> Thanks,
>
> Dejan
>
> ___
> Pacemaker mailing list
> Pacem
Hi All,
i am new to H.A. i am using 4 nodes cluster . i have configured SBD stonith
. yesterday due to NW partition i got 2 partitions. i found that SBD
didn't do anything .
i guess only the partition having quorum can stonith other partition , as
here both partitions dont have quorum so SBD wa
Hi All,
i want to know about multi-running attribute of a resource. i have
configured a primitive resource on node1 when i tried to migrate it to a
node2, it status changed to multirunning ( node1 ,node2). what does it mean?
i didn't expect it for primitive resource.
Best Regards
Thanks for reply Andrew,
i am using suse 11.
On Fri, Mar 6, 2009 at 1:15 PM, Andrew Beekhof wrote:
> it depends on which distro you're using
>
> On Fri, Mar 6, 2009 at 06:17, Glory Smith wrote:
> > Hi All,
> >
> > I am using openais + pacemaker cluster stack.
Hi All,
I am using openais + pacemaker cluster stack. i dont want to start openais
cluster service at startup. can any one tell me what is recommended way to
remove the openais cluster service from startup.
Thanks,
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Hi
i was looking the sbd stonith code. when fencing needs arrive , it write
"reset" to errant node's slot and return success. now if the sbd daemon is
not running on errant node then errant node will not reset itself at all.
dont you think it would be nice for sbd stonith to wait for reset
confirm
Thanks Nakahira,
I have not installed sbd explicitly , i am using the same which came with
heartbeat. i am using
heartbeat-resources-2.99.3-3.2.
Regards,
>
> --
>
> NAKAHIRA Kazutomo
> NTT DATA INTELLILINK CORPORATION
> Open Source Business Unit
> Softwar
r system has older version of heartbeat-2.99.x, then
> update heartbeat package to the latest version.
> (heartbeat-2.99.3-53.1 can be downloaded from opensuse.org.)
>
> Best Regards,
> NAKAHIRA Kazutomo
>
> Glory Smith wrote:
>
>> Hi,
>>
>> i am following http://
> Hi,
>
> i am following http://www.linux-ha.org/SBD_Fencing and trying following
> command.
>
> /usr/sbin/sbd -d /dev/sbd -4 20 -1 10 create but getting error message
> "/usr/sbin/sbd: invalid option -- '4'"
>
> any one knows what's wrong here??
>
> Regards,
>
>
__
Hi,
i am following http://www.linux-ha.org/SBD_Fencing and trying following
command.
/usr/sbin/sbd -d /dev/sbd -4 20 -1 10 create but getting error message
"/usr/sbin/sbd: invalid option -- '4'"
any one knows what's wrong here??
Regards,
___
Pacemake
again,
On Tue, Feb 24, 2009 at 5:55 PM, Dejan Muhamedagic wrote:
> Hi,
>
> On Wed, Feb 18, 2009 at 09:46:59AM +0530, Glory Smith wrote:
> > Hi All ,
> > It really stange that i have not got any reply .. i am just asking one
> > simple question does suse 11 openai
Thanks a lot NAKAHIRA,
i started the sbd daemon and now everything is working as expected. hey one
thing more, i wanted to test the watchdog timer . SBD document says , a
node commits suicide if it fails to update watchdog timer. can i test it
some how. can you help me in this.
i wanted to know h
Thanks Lar for reply,
> The SBD mechanism provides a way to fence errant nodes. The cluster
> manager itself ensures that it does not activate the resource several
> times.
my concern is suppose SBD resource is running on say node1 even then node2
who is member of cluster will be able to access
>
>
> It seems that SBD daemon is not started by init script.
> # First of all, please report on your Heartbeat/Pacemaker/OS version.
> # The following advice maybe depends on Heartbeat version.
Thanks for your reply Nakahira
i am using openais-0.80.3-15.8,pacemaker-1.0.1-7.9 , suse11. here i am
> The SBD mechanism ensures fencing through the shared disk. It can be
> used in combination with N nodes and OCFS2, for example.
yes i understand this. i want something like , a node should be able to
reserve a share disk to do any IO . while this node is holding the
reservation other nodes sho
Thanks Lars for reply
>
>
> It is not supported via fencing.
>
> You have the choice of using a "poison pill" approach, as described on
> http://www.linux-ha.org/SBD_Fencing - or using the scsi2reservation or
> sfex resource agents to ensure exclusive access (but in that case, you
> have to set s
at 5:26 PM, Glory Smith wrote:
> Please help .
>
>
> On Tue, Feb 17, 2009 at 2:29 PM, Glory Smith wrote:
>
>> Hi All,
>> I am really very confused. I had few discussions on Persistent
>> reservation but didnot get any clear answer.
>>
>> i just ne
Please help .
On Tue, Feb 17, 2009 at 2:29 PM, Glory Smith wrote:
> Hi All,
> I am really very confused. I had few discussions on Persistent reservation
> but didnot get any clear answer.
>
> i just need one answer. does Suse 11 openais-pacemaker cluster support
> Persistent R
Hi All,
I am really very confused. I had few discussions on Persistent reservation
but didnot get any clear answer.
i just need one answer. does Suse 11 openais-pacemaker cluster support
Persistent Reservation fencing as RHCS does.
if yes then which stonith should be used for this.
Regards,
_
eve its called SBD, but I'm no expert on it
> On Feb 16, 2009, at 4:15 PM, Glory Smith wrote:
>
> Hi Andrew,
> how do we configure pesisten reservation fencing in suse 11.
>
> Thanks,
>
>
> On Mon, Feb 16, 2009 at 4:48 PM, Glory Smith wrote:
>
>>
>&g
Hi Andrew,
how do we configure pesisten reservation fencing in suse 11.
Thanks,
On Mon, Feb 16, 2009 at 4:48 PM, Glory Smith wrote:
>
>
>> I get the feeling that by "resource fencing", you just mean scsi
>> reservations which are already possible in the current
>
> I get the feeling that by "resource fencing", you just mean scsi
> reservations which are already possible in the current framework.
>
Yes i want persistent scsi reservation .it's really great that it is
possible in current framework , but i couldnot find it and when posted a
query about this
having an unreliable stonith mechanism is worse than not having one at all.
>
> what if your resource fencing has a bug? its the same problem.
>
> reliable fencing is a fundamental requirement of the cluster.
i understand . but If i can do both (node as well as resource fencing) then
there is ve
>
>
>
>
> we kill the node with STONITH.
> very hard for a machine to write to shared media when its powered off.
>
>
> we can kill nodes when:
> - nodes become unresponsive - nodes are not part of the cluster that has
> quorum
> - resources fail to stop when instructed
> - resources fail in any wa
Many Thanks Andrew ,
The same way heartbeat did (if you're familiar with that).
>> Check out the section on STONITH in the configuration explained document (
>> http://clusterlabs.org/wiki/Documentation)
>
>
Unfortunetly this document's stonith chapter is blank. Anways i have gone
through some ot
Hi All,
I need an urgent help . i am planning to use suse 11 openais cluster. i need
to know one very basic question . how does it handle data intigrity. i have
seen some document on scsi2reservation but that does not persist during
node reboot. i have seen some disussion that Persistent reserva
>
>
>
>
> Not sure if I can be of help any further. The sbd daemon should
> be in the process list. If it's not, then it's probably an issue
> in the heartbeat init script. If it is, then the daemon itself
> doesn't function. Please file a bugzilla if you think that
> there's a bug.
>
> Thanks,
atives . Lars , Andrew or others can tell about
> alternative if any
>
> On Wed, Feb 11, 2009 at 10:22 AM, Glory Smith wrote:
>
>> Hi All,
>>
>> RHCS provides Persistent Reservation as one of fencing method. i could not
>> find anything similar on suse 11 open
>
> .
>
> Nope. Did you follow http://www.linux-ha.org/SBD_Fencing? Is the
> sbd daemon running?
>
Thanks for reply Dejan.
Yes i have followed http://www.linux-ha.org/SBD_Fencing. i have done
following for sbd
daemon.
*/etc/sysconfig/sbd*:
SBD_DEVICE="/dev/sbd"
SBD_OPTS="-W"
i have tested sb
Hi All,
RHCS provides Persistent Reservation as one of fencing method. i could not
find anything similar on suse 11 openais/pacemaker cluster.
is it really not available on suse11 openais/pacemaker if yes then what is
the alternative here.
Regards
___
P
>
>
> >
> > As you said if CRM decides a node should be fenced it will be fenced and
> it
> > has nothing to do with sbd.
>
> Right. The decision itself has nothing to do with sbd. sbd is
> just an executioner.
>
> > so in this case cluster must need an another
> > stonith to provide fencing of err
On Sat, Feb 7, 2009 at 8:16 PM, Romi Verma wrote:
> Hi all,
>
> I have one confusion . pacemaker (configuration explained ) document says
> that " if the cluster does not have quorum then the cluster cannot start
> resources or fence other nodes." i understand that when no-quorum-policy
> is
On Mon, Feb 9, 2009 at 2:06 PM, Dejan Muhamedagic wrote:
> Hi,
>
> On Mon, Feb 09, 2009 at 01:26:56PM +0530, Glory Smith wrote:
> > Hi All,
> > Anybody worked on stonith external/sbd?? if yes please reply to my
> following
> > mail.
> >
> > On Fri,
Hi All,
Anybody worked on stonith external/sbd?? if yes please reply to my following
mail.
On Fri, Feb 6, 2009 at 2:27 PM, Glory Smith wrote:
> Hi All,
> I am New to this list. i have few questions related to stonith external
> sbd plugin .
>
> i saw that document says that re
Hi All,
I am New to this list. i have few questions related to stonith external sbd
plugin .
i saw that document says that read/write to thd sbd device is single point
of failure . if we configure multipath then this should not be SPOF anymore
. Right??
it says that other nodes can write fence
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