On Mon, Jul 18, 2011 at 6:38 PM, Kulovits Christian - OS ITSC < christian.kulov...@austrian.com> wrote:
> Hi Andrew,**** > > ** ** > > But whats about the –Inf collocation. The groups must not be active on the > same node. This implies an order in shutting down and starting up, isn´t it? > Colocation does not imply ordering. Groups imply both, but only _within_ a group. > On the other hand, if both groups gets started on different nodes there > should not be any order dependency since startup of one group may last a > long time and the other should not wait that time.**** > > ** ** > > Regards, Christian**** > > ** ** > > *From:* Andrew Beekhof [mailto:and...@beekhof.net] > *Sent:* Dienstag, 05. Juli 2011 03:46 > > *To:* The Pacemaker cluster resource manager > *Subject:* Re: [Pacemaker] Group not started/stopped in correct order with > -INF collocation**** > > ** ** > > ** ** > > On Fri, Jul 1, 2011 at 7:23 PM, Kulovits Christian - OS ITSC < > christian.kulov...@austrian.com> wrote:**** > > Hello Andrew,**** > > **** > > No, there are no ordering constraint between the groups! **** > > > Then how is pacemaker supposed to know there is a start/stop order that > should be observed? > **** > > Regards, Christian**** > > **** > > *From:* Andrew Beekhof [mailto:and...@beekhof.net] > *Sent:* Freitag, 01. Juli 2011 09:31**** > > > *To:* The Pacemaker cluster resource manager > *Subject:* Re: [Pacemaker] Group not started/stopped in correct order with > -INF collocation**** > > **** > > **** > > On Tue, May 31, 2011 at 10:05 PM, Kulovits Christian - OS ITSC < > christian.kulov...@austrian.com> wrote:**** > > Hello,**** > > In a 2-node cluster two groups (prod, test) are defined with a collocation > score=“-INFINITY“. When the node running the group prod failed, the test > group on the other node was stopped and the prod group was started. After > the failed node was online again, the prod group was moved to the other > node. BUT the test group was first started, then the prod group was stopped > and started on the other node. There was a very short time where both groups > were active on the same node.**** > > **** > > Do you have an ordering constraint between them?**** > > **** > > We use a RA to set the home directory for some users, and so the path gets > first set and then unset by this sequence. There is no order defined between > these groups to enable parallel starts on different nodes.**** > > Is this a definition problem or a bug. Nevertheless this behavior looks > strange for me!**** > > **** > > Kind regards, Christian**** > > **** > > Mit freundlichen Grüßen / with best regards > Christian Kulovits**** > > ____________________________________________ > > [image: Description: cid:497353613@17022010-1F5B] > *AUSTRIAN AIRLINES > Christian Kulovits* > *ITSOC Central System & Database Services > Senior IT System Engineer***** > > Head Office > Office Park 2, P.O. Box 100 > 1300 Vienna-Airport, Austria**** > > **** > > *(** *Phone: +43 (0)5 1766 11557 > *Ê** *Fax: +43 (0)5 1766 511557 > È* *Mobile: +43 (0)664 80111 11557 > * email: christian.kulov...@austrian.com > ý www: www.austrian.com**** > > ____________________________________________ **** > > **** > > ________________________________________________**** > > Austrian Airlines AG, Office Park 2, P.O. Box 100, 1300 Vienna-Airport, > Austria, registered office: Vienna, registered with Vienna Commercial Court > under FN 111000k, DVR 0091740. This e-mail is confidential and is subject to > disclaimers. Details can be found at: http://www.austrian.com/disclaimer.* > *** > > **** > > > _______________________________________________ > 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker* > *** > > **** > > > _______________________________________________ > 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker* > *** > > ** ** > > _______________________________________________ > 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker > >
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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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
