[Pacemaker] Cannot get "order" constraint to work.

Dejan Muhamedagic dejanmm at fastmail.fm
Wed Oct 14 10:21:36 UTC 2009


Hi,

On Wed, Oct 14, 2009 at 12:13:42PM +0200, Johan Verrept wrote:
> Sorry, I missed that. Was already wondering why the error was so
> cryptic.
> 
> It is definatly possible, I use it myself:
> 
> order drbd-before-master-group inf: ms-drbd0:promote master-group:start
> 
> And master-group is a group with 3 primitives.
> 
> Maybe try the inf: instead of the mandatory: ?

Maybe, that's equal, though mandatory should work fine as well.

The only way to figure out what's going on is to take a look at
the logs.

Thanks,

Dejan

> FYI, I am on pacemaker 1.0.5.
> 
> 	J.
> 
> On Wed, 2009-10-14 at 13:11 +0300, Stratos Zolotas wrote:
> > As you can see in the config, I have a group named mysql that includes
> > fs_mysql, ip_mysql, mysqld, apache primitives.
> > 
> > The expecting result is to start this group after ms_drbd_mysql is
> > promoted to one of the nodes.
> > 
> > Is this wrong? Should I try a different approach?
> > 
> > Stratos.
> > 
> > On Wed, Oct 14, 2009 at 1:02 PM, Johan Verrept <Johan.Verrept at able.be>
> > wrote:
> >         I don't know if it is your only problem but in the order you
> >         refer to
> >         primitive "mysql" while in your configuration you have
> >         primitive
> >         "mysqld". Note the "d".
> >         Other than that, the order constraint looks like mine.
> >         
> >                J.
> >         
> >         
> >         On Wed, 2009-10-14 at 12:59 +0300, Stratos Zolotas wrote:
> >         > Hello again.
> >         >
> >         > After struggling with the latest versions, i decided to try
> >         with the
> >         > versions in the standard opesuse repos, that means:
> >         >
> >         > openais 0.80.3
> >         > libopenais2 0.80.3
> >         > pacemaker 1.0.1
> >         > libpacemaker3 1.0.1
> >         > heartbeat 2.99.3
> >         > heartbeat-common 2.99.3
> >         > heartbeat-resources 2.99.3
> >         > libheartbeat2 2.99.3
> >         > OpenIPMI 2.0.14
> >         >
> >         > It seems to work ok, the nodes are communicating and i can
> >         connect to
> >         > cib and create configuration, but i cannot configure an
> >         order
> >         > constraint in the configuration file.
> >         >
> >         > I try this:
> >         >
> >         > order mysql_after_drbd mandatory: ms_drbd_mysql:promote
> >         mysql:start
> >         >
> >         > But when i try to commit i get:
> >         >
> >         > Call cib_create failed (-47): Update does not conform to the
> >         > configured schema/DTD
> >         > <null>
> >         > ERROR: could not create mysql_after_drbd
> >         > offending xml: <rsc_order first="ms_drbd_mysql"
> >         first-action="promote"
> >         > id="mysql_after_drbd" score="inf" then="mysql"
> >         then-action="start"/>
> >         >
> >         > Am I doing something wrong?
> >         >
> >         > The rest of the configuration is accepted and is:
> >         >
> >         > primitive fs_mysql ocf:heartbeat:Filesystem \
> >         >         params device="/dev/drbd0" directory="/service/"
> >         fstype="ext3"
> >         > primitive ip_mysql ocf:heartbeat:IPaddr2 \
> >         >         params ip="192.168.1.72" nic="eth2:0"
> >         > primitive mysqld lsb:mysql
> >         > primitive apache lsb:apache2
> >         > primitive drbd_mysql ocf:linbit:drbd \
> >         >         params drbd_resource="r0" \
> >         >         operations $id="drbd_mysql-ops" \
> >         >         op monitor interval="15s"
> >         > group mysql fs_mysql ip_mysql mysqld apache
> >         > ms ms_drbd_mysql drbd_mysql \
> >         >         meta master-max="1" master-node-max="1"
> >         clone-max="2"
> >         > clone-node-max="1" notify="true"
> >         > colocation mysql_on_drbd INFINITY: mysql
> >         ms_drbd_mysql:Master
> >         > property $id="cib-bootstrap-options" \
> >         >         dc-version="1.0.1-node:
> >         > 27be064e090742359bbdd1914f9d7dd363c8e0d8" \
> >         >         no-quorum-policy="ignore" \
> >         >         stonith-enabled="false" \
> >         >         default-resource-stickiness="1000"
> >         >
> >         > Thanks in advance
> >         >
> >         > Stratos.
> >         >
> >         
> >         > _______________________________________________
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> >         > Pacemaker at oss.clusterlabs.org
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> >         
> >         
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> > 
> > 
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