[ClusterLabs] Apache doesn't start under corosync with systemd

[Reynolds, John F - San Mateo, CA - Contractor]

Good morning.

I've just upgraded a two-node active-passive cluster from SLES11 to SLES12.  This means that I've gone from /etc/init.d scripts to systemd services.

On the SLES11 server, this worked:

        <primitive id="ncoa_apache" class="ocf" provider="heartbeat" type="apache">
          <instance_attributes id="ncoa_apache-instance_attributes">
            <nvpair name="configfile" value="/etc/apache2/httpd.conf" id="ncoa_apache-instance_attributes-configfile"/>
          </instance_attributes>
          <operations>
            <op name="monitor" interval="40s" timeout="60" id="ncoa_apache-monitor-40s"/>
          </operations>
        </primitive>

I had to tweak /etc/init.d/apache2 to make sure it only started on the active node, but that's OK.

On the SLES12 server, the resource is the same:

        <primitive id="ncoa_apache" class="ocf" provider="heartbeat" type="apache">
          <instance_attributes id="ncoa_apache-instance_attributes">
            <nvpair name="configfile" value="/etc/apache2/httpd.conf" id="ncoa_apache-instance_attributes-configfile"/>
          </instance_attributes>
          <operations>
            <op name="monitor" interval="40s" timeout="60s" id="ncoa_apache-monitor-40s"/>
          </operations>
        </primitive>

and the cluster believes the resource is started:


eagnmnmep19c1:/var/lib/pacemaker/cib # crm status
Stack: corosync
Current DC: eagnmnmep19c0 (version 1.1.16-4.8-77ea74d) - partition with quorum
Last updated: Fri Oct  4 09:02:52 2019
Last change: Thu Oct  3 10:55:03 2019 by root via crm_resource on eagnmnmep19c0

2 nodes configured
16 resources configured

Online: [ eagnmnmep19c0 eagnmnmep19c1 ]

Full list of resources:

Resource Group: grp_ncoa
      (edited out for brevity)
     ncoa_a05shared     (ocf::heartbeat:Filesystem):    Started eagnmnmep19c1
     IP_56.201.217.146  (ocf::heartbeat:IPaddr2):       Started eagnmnmep19c1
     ncoa_apache        (ocf::heartbeat:apache):        Started eagnmnmep19c1

eagnmnmep19c1:/var/lib/pacemaker/cib #


But the httpd daemons aren't started.  I can start them by hand, but that's not what I need.

I have gone through the ClusterLabs and SLES docs for setting up apache resources, and through this list's archive; haven't found my answer.   I'm missing something in corosync, apache, or systemd.  Please advise.


John Reynolds, Contractor
San Mateo Unix

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