[ClusterLabs] Unable to start Apache resource
Reid Wahl
nwahl at redhat.com
Mon Sep 25 19:51:17 EDT 2023
On Mon, Sep 25, 2023 at 4:50 PM Reid Wahl <nwahl at redhat.com> wrote:
>
> On Tue, Sep 19, 2023 at 9:10 AM Bartosz Kaczyński <bkaczynski at posteo.net> wrote:
> >
> > Greetings,
> >
> > I am facing an issue with launching a primitive resource in a two-node
> > Pacemaker/Corosync cluster. I have set up a lab environment based on the
> > guidelines from the "Say Goodbye to Downtime with SUSE Linux Enterprise
> > Server (Repeat)" [1] course.
> >
> > In my lab environment, I am using openSUSE Leap 15.5.
> > Steps I have taken so far:
> >
> > - Created an IP resource
> >
> > --8<---------------cut here---------------start------------->8---
> > crm configure
> > primitive p-IP_101 IPaddr2 \
> > params ip=172.17.17.101 cidr_netmask=24 nic=bond1 \
> > op start timeout=20s interval=0 \
> > op stop timeout=20s interval=0 \
> > op monitor timeout=20s interval=10s \
> > meta target-role=Started
> > commit
> > --8<---------------cut here---------------end--------------->8---
> >
> >
> > - Created an Apache resource
> >
> > crm configure edit # and added following content of the bottom of the
> > file
> >
> > --8<---------------cut here---------------start------------->8---
> > primitive p-apache2_1 apache \
> > params configfile="/etc/apache2/http_1.conf" \
> > statusurl="172.17.17.101:8180" \
> > op start interval=0 timeout=40 \
> > op stop interval=0 timeout=60 \
> > op monitor interval=10 timeout=20
> > --8<---------------cut here---------------end--------------->8---
> >
> > - Edited the Apache configuration files
> >
> > cp /etc/apache2/httpd.conf /etc/apache2/httpd_1.conf
> > cp /etc/apache2/listen.conf /etc/apache2/listen_1.conf
> >
> > vi /etc/apache2/httpd_1.conf
> >
> > --8<---------------cut here---------------start------------->8---
> > Include /etc/apache2/listen_1.conf
> >
> > --snip--
> > Pidfile /var/run/httpd_1.pid
> > --8<---------------cut here---------------end--------------->8---
> >
> > vi /etc/apache2/listen_1.conf
> >
> > --8<---------------cut here---------------start------------->8---
> > Listen 172.17.17.101:8180
> >
> >
> > <IfDefine SSL>
> > <IfDefine !NOSSL>
> > <IfModule mod_ssl.c>
> >
> > Listen 172.17.17.101:8443
> >
> > </IfModule>
> > </IfDefine>
> > </IfDefine>
> > --8<---------------cut here---------------end--------------->8---
> >
> >
> > - Ensured file synchronization using csync2
> > - Created a resource group with primitives for the IP and Apache resources
> >
> > --8<---------------cut here---------------start------------->8---
> > crm configure
> > group g-apache2_1 p-IP_101 p-apache2_1 description="Apache2 Instance 1"
> > commit
> > --8<---------------cut here---------------end--------------->8---
> >
> > - Started the resources, resulting in an error (logs provided below)
> >
> > --8<---------------cut here---------------start------------->8---
> > Failed Resource Actions:
> > * p-apache2_1_start_0 on node01 'not installed' (5): call=24, status='complete', exitreason='environment is invalid, resource considered stopped', last-rc-change='Tue Sep 19 17:17:49 2023', queued=0ms, exec=39ms
> > * p-apache2_1_start_0 on node02 'not installed' (5): call=26, status='complete', exitreason='environment is invalid, resource considered stopped', last-rc-change='Tue Sep 19 15:46:48 2023', queued=0ms, exec=40ms
> > --8<---------------cut here---------------end--------------->8---
> >
> > --8<---------------cut here---------------start------------->8---
> > crm configure rsctest p-apache2_1
> > INFO: Probing resources
> > INFO: Testing on node01: p-apache2_1
> > ERROR: host node01 (exit code 5)
> >
> > INFO: Testing on node02: p-apache2_1
> > ERROR: host node02 (exit code 5)
> > --8<---------------cut here---------------end--------------->8---
> >
> >
> > The Apache server is installed on both nodes
> >
> > --8<---------------cut here---------------start------------->8---
> > node01:~ # zypper se -i apache2
> > Loading repository data...
> > Reading installed packages...
> >
> > S | Name | Summary | Type
> > ---+-----------------+--------------------------------------------------+--------
> > i+ | apache2 | The Apache Web Server | package
> > i | apache2-prefork | Apache 2 "prefork" MPM (Multi-Processing Module) | package
> > i | apache2-utils | Apache 2 utilities | package
> > node01:~ # ssh node02 zypper se -i apache2
> > Loading repository data...
> > Reading installed packages...
> >
> > S | Name | Summary | Type
> > ---+-----------------+--------------------------------------------------+--------
> > i+ | apache2 | The Apache Web Server | package
> > i | apache2-prefork | Apache 2 "prefork" MPM (Multi-Processing Module) | package
> > i | apache2-utils | Apache 2 utilities | package
> > --8<---------------cut here---------------end--------------->8---
> >
> > and the firewall is disabled. What else can I check?
>
> Are there any more logs (for example, in /var/log/messages) from the
> apache resource agent?
>
> The "environment is invalid, resource considered stopped" message
> comes from handle_invalid_env() in the ocf-rarun file (installed at
> /usr/lib/ocf/lib/heartbeat/ocf-rarun on my machine). It can happen if
> one of the required binaries is not installed **or** if the apache
> resource agent's validate_all() function fails.
>
> The required binaries list is empty for the apache resource agent, so
> I suppose validate_all() is failing. There should be something in the
> system logs.
+ bkaczynski at posteo.net
>
> >
> > Best regards,
> > Bartosz Kaczyński
> >
> > [1] https://open.sap.com/courses/suse2-1-pc
> > _______________________________________________
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>
>
>
> --
> Regards,
>
> Reid Wahl (He/Him)
> Senior Software Engineer, Red Hat
> RHEL High Availability - Pacemaker
--
Regards,
Reid Wahl (He/Him)
Senior Software Engineer, Red Hat
RHEL High Availability - Pacemaker
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