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[Linux-cluster] active-active httpd issue



Hello,
I have a 2 node HA cluster and I am configuring the httpd service as
active-active. I want to run httpd service in both the cluster nodes
simultaneously. I have configured 2 failover domains FD1 and FD2.
FD1 = p6pv1(priority 1) & p7pv1(priority 2)
FD2 = p6pv1(priority 2) & p7pv1(priority 1)
nodes(both installed RHEL5.2):
--------------------------
p6pv1: 10.1.40.204
p7pv1: 10.1.40.206

and here's the "/etc/cluster/cluster.conf":
-----------------------------------------
[root p6pv1 ~]# cat /etc/cluster/cluster.conf
<?xml version="1.0"?>
<cluster alias="HA" config_version="17" name="HA">
        <fence_daemon clean_start="0" post_fail_delay="0"
post_join_delay="3"/>
        <clusternodes>
                <clusternode name="p6pv1.tr.unisys.com" nodeid="1"
votes="1">
                        <fence>
                                <method name="1">
                                        <device name="man1"/>
                                </method>
                        </fence>
                </clusternode>
                <clusternode name="p7pv1.tr.unisys.com" nodeid="2"
votes="1">
                        <fence>
                                <method name="1">
                                        <device name="man2"/>
                                </method>
                        </fence>
                </clusternode>
        </clusternodes>
        <cman expected_votes="1" two_node="1"/>
        <fencedevices>
                <fencedevice agent="fence_xen" domain="p6pv1" host="p6"
name="man1"/>
                <fencedevice agent="fence_xen" domain="p7pv1" host="p7"
name="man2"/>
        </fencedevices>
        <rm>
                <failoverdomains>
                        <failoverdomain name="FD1" nofailback="0"
ordered="1" restricted="1">
                                <failoverdomainnode
name="p6pv1.tr.unisys.com" priority="1"/>
                                <failoverdomainnode
name="p7pv1.tr.unisys.com" priority="2"/>
                        </failoverdomain>
                        <failoverdomain name="FD2" nofailback="0"
ordered="1" restricted="1">
                                <failoverdomainnode
name="p6pv1.tr.unisys.com" priority="2"/>
                                <failoverdomainnode
name="p7pv1.tr.unisys.com" priority="1"/>
                        </failoverdomain>
                </failoverdomains>
                <resources>
                        <ip address="10.1.40.200" monitor_link="1"/>
                        <ip address="10.1.40.201" monitor_link="1"/>
                </resources>
                <service autostart="1" domain="FD2" exclusive="0"
name="httpd2" recovery="relocate">
                        <ip ref="10.1.40.201">
                                <script file="/etc/rc.d/init.d/httpd"
name="httpd"/>
                        </ip>
                </service>
                <service autostart="1" domain="FD1" exclusive="0"
name="httpd1" recovery="relocate">
                        <ip ref="10.1.40.200">
                                <script file="/etc/rc.d/init.d/httpd"
name="httpd"/>
                        </ip>
                </service>
        </rm>
</cluster>
[root p6pv1 ~]#
-----------------------------------------

When these two nodes are both running, I am seeing configured services
httpd1 and httpd2 are running on p6pv1 and p7pv1 respectively.
--------------------------------------------
[root p6pv1 ~]# clustat
Cluster Status for HA @ Tue Dec 23 06:31:47 2008
Member Status: Quorate

 Member Name                                                     ID
Status
 ------ ----                                                     ----
------
 p6pv1.tr.unisys.com                                                 1
Online, Local, rgmanager
 p7pv1.tr.unisys.com                                                 2
Online, rgmanager

 Service Name                                                     Owner
(Last)                                                     State
 ------- ----                                                     -----
------                                                     -----
 service:httpd1
p6pv1.tr.unisys.com                                              started
 service:httpd2
p7pv1.tr.unisys.com                                              started
---------------------------------------------------

But in real the httpd service is running only at one node at any
particular instant of time. Here expected behavior is httpd should run
on both the nodes. I am getting below log messages.

[root p6pv1 ~]# !ta
tail -f /var/log/messages
Dec 23 06:06:37 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes
Dec 23 06:09:10 p6pv1 ccsd[11169]: Update of cluster.conf complete
(version 16 -> 17).
Dec 23 06:09:22 p6pv1 clurgmgrd[11282]: <notice> Reconfiguring
Dec 23 06:09:23 p6pv1 clurgmgrd[11282]: <err> Primary attribute
collision. type=script attr=name value=httpd
Dec 23 06:11:38 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes
Dec 23 06:16:39 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes
Dec 23 06:21:40 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes
Dec 23 06:26:41 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes
Dec 23 06:31:42 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes
Dec 23 06:36:43 p6pv1 init: Id "x" respawning too fast: disabled for 5
minutes

Can some one help me to fix this issue? Any suggestions appreciated.

Thanks and Regards,
Santosh


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