[Pacemaker] [Problem] Order which combined a master with clone is invalid.

renayama19661014 at ybb.ne.jp renayama19661014 at ybb.ne.jp
Tue Aug 7 19:59:02 EDT 2012 

Hi Andrew,

> > The first method)
> >  * Set colocation in clnPingd and msDrPostgreSQLDB.
> >
> > The second method)
> >  * Set interleave option in clnPingd.
> >
> > Do my two methods include a mistake?
> 
> No.
> 
> Looking closer, the initial constraint says only that the Master must
> be on a node running clnPingd.
> Slaves are free to run anywhere :)

All right!

We did not use the "interleave" option in now.
We decide to use the first method for a while.

Many Thanks,
Hideo Yamauchi.


--- On Tue, 2012/8/7, Andrew Beekhof <andrew at beekhof.net> wrote:

> On Mon, Jul 30, 2012 at 2:08 PM,  <renayama19661014 at ybb.ne.jp> wrote:
> > Hi Andrew,
> >
> > Thank you or commets.
> >
> >> > Online: [ drbd1 drbd2 ]
> >> >
> >> >  Master/Slave Set: msDrPostgreSQLDB
> >> >      Masters: [ drbd2 ]
> >> >      Slaves: [ drbd1 ] -------------------------------> Started and Status Slave.
> >>
> >> Yep, looks like a bug.  I'll follow up on the bugzilla.
> >
> > I talked with David by Bugzilla.
> >
> > And I confirmed that I worked by two next methods well.
> >
> > The first method)
> >  * Set colocation in clnPingd and msDrPostgreSQLDB.
> >
> > The second method)
> >  * Set interleave option in clnPingd.
> >
> > Do my two methods include a mistake?
> 
> No.
> 
> Looking closer, the initial constraint says only that the Master must
> be on a node running clnPingd.
> Slaves are free to run anywhere :)
> 
> >
> > If you suspect the bug, please write in comment at Bugzilla.
> >
> > Many Thanks,
> > Hideo Yamauchi.
> >
> >
> > --- On Mon, 2012/7/30, Andrew Beekhof <andrew at beekhof.net> wrote:
> >
> >> On Mon, Jul 23, 2012 at 9:43 AM,  <renayama19661014 at ybb.ne.jp> wrote:
> >> > Hi David,
> >> >
> >> > Thank you for comments.
> >> >
> >> >> http://www.clusterlabs.org/doc/en-US/Pacemaker/1.1/html/Pacemaker_Explained/ch06s03s02.html
> >> >
> >> > I confirmed it in INFINITY.
> >> >
> >> > (snip)
> >> >       <rsc_colocation id="rsc_colocation-1" rsc="msDrPostgreSQLDB" rsc-role="Master" score="INFINITY" with-rsc="clnPingd"/>
> >> >       <rsc_order first="clnPingd" id="rsc_order-1" score="INFINITY" symmetrical="false" then="msDrPostgreSQLDB"/>
> >> > (snip)
> >> >
> >> >
> >> > By the start only for Master nodes, it was controlled well.
> >> >
> >> > [root at drbd1 ~]# crm_mon -1 -f
> >> > ============
> >> > Last updated: Mon Jul 23 08:24:38 2012
> >> > Stack: Heartbeat
> >> > Current DC: NONE
> >> > 1 Nodes configured, unknown expected votes
> >> > 2 Resources configured.
> >> > ============
> >> >
> >> > Online: [ drbd1 ]
> >> >
> >> >
> >> > Migration summary:
> >> > * Node drbd1:
> >> >    prmPingd:0: migration-threshold=1 fail-count=1000000
> >> >
> >> > Failed actions:
> >> >     prmPingd:0_start_0 (node=drbd1, call=4, rc=1, status=complete): unknown error
> >> >
> >> >
> >> > However, the problem occurs when I send cib after the Slave node started together.
> >> >
> >> > ============
> >> > Last updated: Mon Jul 23 08:35:41 2012
> >> > Stack: Heartbeat
> >> > Current DC: drbd2 (6d4b04de-12c0-499a-b388-febba50eaec2) - partition with quorum
> >> > Version: 1.0.12-unknown
> >> > 2 Nodes configured, unknown expected votes
> >> > 2 Resources configured.
> >> > ============
> >> >
> >> > Online: [ drbd1 drbd2 ]
> >> >
> >> >  Master/Slave Set: msDrPostgreSQLDB
> >> >      Masters: [ drbd2 ]
> >> >      Slaves: [ drbd1 ] -------------------------------> Started and Status Slave.
> >>
> >> Yep, looks like a bug.  I'll follow up on the bugzilla.
> >>
> >> >  Clone Set: clnPingd
> >> >      Started: [ drbd2 ]
> >> >      Stopped: [ prmPingd:0 ]
> >> >
> >> > Migration summary:
> >> > * Node drbd1:
> >> >    prmPingd:0: migration-threshold=1 fail-count=1000000
> >> > * Node drbd2:
> >> >
> >> > Failed actions:
> >> >     prmPingd:0_start_0 (node=drbd1, call=4, rc=1, status=complete): unknown error
> >> >
> >> > Best Regards,
> >> > Hideo Yamauchi.
> >> >
> >> >
> >> >
> >> > --- On Sat, 2012/7/21, David Vossel <dvossel at redhat.com> wrote:
> >> >
> >> >>
> >> >>
> >> >> ----- Original Message -----
> >> >> > From: renayama19661014 at ybb.ne.jp
> >> >> > To: "PaceMaker-ML" <pacemaker at oss.clusterlabs.org>
> >> >> > Sent: Friday, July 20, 2012 1:39:51 AM
> >> >> > Subject: [Pacemaker] [Problem] Order which combined a master with clone is    invalid.
> >> >> >
> >> >> > Hi All,
> >> >> >
> >> >> > We confirmed movement of order which combined a master with clone.
> >> >> > We performed it by a very simple combination.
> >> >> >
> >> >> > Step1) We change it to produce start error in Dummy resource.
> >> >> >
> >> >> > (snip)
> >> >> > dummy_start() {
> >> >> > return $OCF_ERR_GENERIC
> >> >> >     dummy_monitor
> >> >> > (snip)
> >> >> >
> >> >> > Step2) We start one node and send cib.
> >> >> >
> >> >> >
> >> >> > However, as for the master, it is done start even if start of clone
> >> >> > fails.
> >> >> > And it becomes the Slave state.
> >> >>
> >> >> Not a bug,  You are using advisory ordering in your order constraint.
> >> >>
> >> >> http://www.clusterlabs.org/doc/en-US/Pacemaker/1.1/html/Pacemaker_Explained/ch06s03s02.html
> >> >>
> >> >> >
> >> >> > ============
> >> >> > Last updated: Fri Jul 20 15:36:10 2012
> >> >> > Stack: Heartbeat
> >> >> > Current DC: NONE
> >> >> > 1 Nodes configured, unknown expected votes
> >> >> > 2 Resources configured.
> >> >> > ============
> >> >> >
> >> >> > Online: [ drbd1 ]
> >> >> >
> >> >> >  Master/Slave Set: msDrPostgreSQLDB
> >> >> >      Slaves: [ drbd1 ]
> >> >> >      Stopped: [ prmDrPostgreSQLDB:1 ]
> >> >> >
> >> >> > Migration summary:
> >> >> > * Node drbd1:
> >> >> >    prmPingd:0: migration-threshold=1 fail-count=1000000
> >> >> >
> >> >> > Failed actions:
> >> >> >     prmPingd:0_start_0 (node=drbd1, call=4, rc=1, status=complete):
> >> >> >     unknown error
> >> >> >
> >> >> >
> >> >> > We confirmed it just to make sure in Pacemaker1.1.7.
> >> >> > However, the problem was the same.
> >> >> >
> >> >> > ============
> >> >> > Last updated: Fri Jul 20 22:53:22 2012
> >> >> > Last change: Fri Jul 20 22:53:09 2012 via cibadmin on fedora17-1
> >> >> > Stack: corosync
> >> >> > Current DC: fedora17-1 (1) - partition with quorum
> >> >> > Version: 1.1.7-e6922a70f742d3eab63d7e22f3ea0408b54b5dae
> >> >> > 1 Nodes configured, unknown expected votes
> >> >> > 4 Resources configured.
> >> >> > ============
> >> >> >
> >> >> > Online: [ fedora17-1 ]
> >> >> >
> >> >> >  Master/Slave Set: msDrPostgreSQLDB [prmDrPostgreSQLDB]
> >> >> >      Slaves: [ fedora17-1 ]
> >> >> >      Stopped: [ prmDrPostgreSQLDB:1 ]
> >> >> >
> >> >> > Migration summary:
> >> >> > * Node fedora17-1:
> >> >> >    prmPingd:0: migration-threshold=1 fail-count=1000000
> >> >> >
> >> >> > Failed actions:
> >> >> >     prmPingd:0_start_0 (node=fedora17-1, call=14, rc=1,
> >> >> >     status=complete): unknown error
> >> >> >
> >> >> >
> >> >> > I think that this problem is similar to the bug that I reported
> >> >> > before.
> >> >> >
> >> >> >  * http://bugs.clusterlabs.org/show_bug.cgi?id=5075.
> >> >> >
> >> >> > Is this problem a bug?
> >> >> > Or can we be improved by setting?
> >> >>
> >> >> see advisory ordering
> >> >>
> >> >> >
> >> >> > Best Regards,
> >> >> > Hideo Yamauchi.
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > Pacemaker mailing list: Pacemaker at 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 at 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 at 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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