On 19 Nov 2013, at 3:09 pm, Andrew Beekhof <and...@beekhof.net> wrote:
> > On 19 Nov 2013, at 2:50 pm, Rob Thomas <xro...@gmail.com> wrote: > >>>>> On 19 Nov 2013, at 6:00 am, Rob Thomas <xro...@gmail.com> wrote: >>>>>> So... What's the -right- way to do it then? 8) >>>>> >>>>> <rsc_colocation id="pcs_rsc_colocation"> >>>>> <resource_set id="pcs_rsc_set"> >>>>> <resource_ref id="httpd"/> >>>>> <resource_ref id="asterisk"/> >>>>> </resource_set> >>>>> </rsc_colocation> >> >> ... >> >>>> I'll have a try with the setoptions and see if that works. Thanks! >> >> Without adding the ms resource, it won't fail the other service over >> completely. >> >> This works (which is a LITTLE bit more pleasing to the eyes, hopefully! I >> even set the font to monospace!) >> >> <rsc_colocation id="pcs_rsc_colocation" score="INFINITY"> >> <resource_set id="pcs_rsc_set-1"> >> <resource_ref id="httpd"/> >> <resource_ref id="asterisk"/> >> </resource_set> >> <resource_set id="pcs_rsc_set-2" role="Master"> >> <resource_ref id="ms-asterisk"/> >> <resource_ref id="ms-httpd"/> >> </resource_set> >> </rsc_colocation> Also, yes that is correct. The non-set equivalent would be: pcs constraint colocation add asterisk with httpd pcs constraint colocation add master ms-asterisk with asterisk pcs constraint colocation add master ms-httpd with master ms-asterisk If that doesn't work, send me cibadmin -Ql after the failure and I can investigate. >> >> I'm still pretty sure you can't do that through pcs. > > The docs suggest this should work, but it seems not to: > > pcs constraint colocation set httpd asterisk set ms-asterisk ms-httpd > setoptions role=Master score=INFINITY > > Chris: the command 'pcs constraint colocation set httpd asterisk setoptions > role=Master' creates: > > <rsc_colocation id="pcs_rsc_colocation" role="Master"> > <resource_set id="pcs_rsc_set"> > <resource_ref id="httpd" /> > <resource_ref id="asterisk" /> > </resource_set> > </rsc_colocation> > > However role belongs with the resource_set. > >> >> And the reason why (I believe) I need them, to go into a bit more depth - >> (sorry for everyone else who's getting bored with this incredibly arcane and >> in-depth discussion, that has degenerated into pasting XML snippets >> everywhere) here's the relevant associated constraints: >> >> <rsc_colocation id="c-1" rsc="asterisk_fs" score="INFINITY" >> with-rsc="ms-asterisk" with-rsc-role="Master"/> >> <rsc_order first="ms-asterisk" first-action="promote" id="o-1" >> score="INFINITY" then="asterisk_fs" then-action="start"/> >> <rsc_colocation id="c-2" rsc="httpd_fs" score="INFINITY" with-rsc="ms-httpd" >> with-rsc-role="Master"/> >> <rsc_order first="ms-httpd" first-action="promote" id="o-2" score="INFINITY" >> then="httpd_fs" then-action="start"/> >> >> (id's changed to aid reading) >> >> Without pcs_rsc_set-2 before failing: >> >> Master/Slave Set: ms-asterisk [drbd_asterisk] >> Masters: [ freepbx-a ] >> Slaves: [ freepbx-b ] >> Master/Slave Set: ms-httpd [drbd_httpd] >> Masters: [ freepbx-a ] >> Slaves: [ freepbx-b ] >> Resource Group: httpd >> httpd_fs (ocf::heartbeat:Filesystem): Started freepbx-a >> httpd_ip (ocf::heartbeat:IPaddr2): Started freepbx-a >> httpd_service (ocf::heartbeat:apache): Started freepbx-a >> Resource Group: asterisk >> asterisk_fs (ocf::heartbeat:Filesystem): Started freepbx-a >> asterisk_ip (ocf::heartbeat:IPaddr2): Started freepbx-a >> asterisk_service (ocf::heartbeat:freepbx): Started freepbx-a >> isymphony_service (lsb:iSymphonyServer): Started freepbx-a >> >> AFTER failing: >> >> Master/Slave Set: ms-asterisk [drbd_asterisk] >> Masters: [ freepbx-a ] <---------- THIS IS WRONG >> Slaves: [ freepbx-b ] >> Master/Slave Set: ms-httpd [drbd_httpd] >> Masters: [ freepbx-b ] >> Slaves: [ freepbx-a ] >> Resource Group: asterisk >> asterisk_fs (ocf::heartbeat:Filesystem): Stopped >> asterisk_ip (ocf::heartbeat:IPaddr2): Stopped >> asterisk_service (ocf::heartbeat:freepbx): Stopped >> isymphony_service (lsb:iSymphonyServer): Stopped >> Resource Group: httpd >> httpd_fs (ocf::heartbeat:Filesystem): Started freepbx-b >> httpd_ip (ocf::heartbeat:IPaddr2): Started freepbx-b >> httpd_service (ocf::heartbeat:apache): Started freepbx-b >> >> The asterisk group isn't starting because - obviously - it's not the master >> for ms-asterisk. So the constraint worked, BUT, because I don't have the >> resource in there, I can't tell it to shut down. >> >> My other idea was having the ms- ordering start the group, but that doesn't >> work either. >> >> --Rob >> _______________________________________________ >> 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://bugs.clusterlabs.org
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