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

renayama19661014 at ybb.ne.jp renayama19661014 at ybb.ne.jp
Mon Jul 30 04:08:16 UTC 2012 

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?

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
>

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