[Linux-HA] Configuring HA

[Dan Track]

On 10/10/06, Andrew Beekhof <beekhof at gmail.com> wrote:
> On 10/10/06, Dan Track <dan.track at gmail.com> wrote:
> > Hi
> > I'm trying to setup heartbeat 2.0.7 on rhel 4 es and am having some problems.
> >
> > I'm following the instructions on this page:
> >
> > http://www.linux-ha.org/GettingStarted/OneIPAddress
> >
> > I'm having the following problems
> >
> > 1) Both nodes come up with the virtual floating IP once the primary
> > node is restarted. Only one should come up that gets failed over to
> > the other node. ( at least this is how I understand it)
>
> Sounds like the nodes cant communicate.  Firewall?
>
> And one of the nodes probably needs to change this line to something else
>    ucast eth1 192.168.16.2
>
> They cant both have that ip address :)
>
> > 2) Running the following generated the following error:
> >
> >  python /usr/lib/heartbeat/haresources2cib.py /root/haresources.temp >
> > /var/lib/heartbeat/crm/cib.xml
> > cib.xml or cib.xml.sig exist in /var/lib/heartbeat/crm/
> > please remove them before generating new cib.xml
> >
> > Everytime you remove the file the script recreates a blank file and
> > then complains, buit never populates the file.
> >
> > Could someone please help me with the above?
>
> Not unless you include the contents of  /root/haresources.temp
>
> Also, you cant use ipfail with a crm-based cluster
>
> > My configuration files are
> >
> > node1: ha.cf
> >
> > logfile /var/log/ha-log
> > logfacility     daemon
> > keepalive 1
> > deadtime 10
> > warntime 5
> > initdead 120 # depend on your hardware
> > udpport 694
> > ping 10.11.8.40
> > bcast eth1
> > ucast eth1 192.168.16.2
> > auto_failback off
> > node    zhang
> > node    quan
> > respawn hacluster /usr/lib/heartbeat/ipfail
> > use_logd yes
> >
> > node2: ha.cf
> > logfile /var/log/ha-log
> > logfacility     daemon
> > keepalive 1
> > deadtime 10
> > warntime 5
> > initdead 120 # depend on your hardware
> > udpport 694
> > ping 10.11.8.40
> > bcast eth1
> > ucast eth1 192.168.16.2
> > auto_failback off
> > node    zhang
> > node    quan
> > respawn hacluster /usr/lib/heartbeat/ipfail
> > use_logd yes
> >
> >
> > If you need anymore info please let me know.
> >
> > Thanks in advance
> > Dan




Hi

Thanks for the advice.

Here's the contents of /root/haresources.temp:
zhang 10.11.8.42

Hope this helps.

I've got an additional issue now. I've just removed the ip entry in
/etc/ha.d/haresources and relied on the cib.xml file. The problem now
is that I can't get the IP to come up. If I start hearbeat no
interface comes up. However if I use the haresources file the
interface does work. I thought in version 2 cib.xml was used intead of
haresources.

Additionally I'm not using crm. How do I confirm that I'm not using it?

Here's my cib.xml file. I produced this by copying your online example
as the python scripts didn't work.:

/var/lib/heartbeat/crm/cib.xml:

<?xml version="1.0" ?>
<cib>
   <configuration>
       <crm_config>
           <nvpair id="transition_idle_timeout"
name="transition_idle_timeout" value="120s"/>
           <nvpair id="symmetric_cluster" name="symmetric_cluster"
value="true"/>
           <nvpair id="no_quorum_policy" name="no_quorum_policy" value="stop"/>
       </crm_config>
       <nodes/>
       <resources>
           <group id="group_1">
               <primitive class="ocf" id="IPaddr_1"
provider="heartbeat" type="IPaddr">
                    <operations>
                       <op id="1" interval="5s" name="monitor" timeout="5s"/>
                    </operations>
                    <instance_attributes>
                       <attributes>
                           <nvpair name="ip" value="10.11.8.42"/>
                           <nvpair name="netmask" value="16"/>
                           <nvpair name="nic" value="eth0"/>
                       </attributes>
                   </instance_attributes>
               </primitive>
          </group>
       </resources>
       <constraints>
           <rsc_location id="rsc_location_group_1" rsc="group_1">
               <rule id="prefered_location_group_1" score="100">
                   <expression attribute="#uname" operation="eq"
value="zhang"/>
               </rule>
           </rsc_location>
       </constraints>
   </configuration>
   <status/>
</cib>

Thanks in advance
Dan