[Pacemaker] crm resourse (lsb:apache2) not starting

Ken Gaillot kjgaillo at gleim.com
Fri Jul 25 10:21:00 EDT 2014 

On 07/25/2014 08:20 AM, W Forum W wrote:
> Anyone who can help to get this working?
> Or where I can look?
>
> Many thanks

Pore through the daemon.log entries around the time you do your 
"resource start". There are a variety of log tags (cib, lrmd, pengine, 
etc.), so grepping usually isn't worth the bother. The main difficulty 
is the verbosity and the fact that it's not obvious what's expected and 
what indicates trouble. Not every message with the word "error" in it is 
an error. ;-)

But if you go line by line through all that, you can usually find a 
telltale indicator of what really went wrong.

Out of curiosity, why do you put apache in your cluster resources? If 
people are connecting to your virtual IP, there's generally no harm in 
having apache continue running on the other node. But if your DRBD is 
master-slave and apache can't run without it, that would make sense.

> On 07/13/2014 04:28 PM, W Forum W wrote:
>> Hi,
>>
>> The apache logs doesn't say a lot (LogLevel debug)
>>
>> [error] python_init: Python version mismatch, expected '2.7.2+', found
>> '2.7.3'.
>> [error] python_init: Python executable found '/usr/bin/python'.
>> [error] python_init: Python path being used
>> '/usr/lib/python2.7/:/usr/lib/python2.7/plat-linux2:/usr/lib/python2.7/lib-tk:/usr/lib/python2.7/lib-old:/usr/lib/python2.7/lib-dynload'.
>> [notice] mod_python: Creating 8 session mutexes based on 150 max
>> processes and 0 max threads.
>> [notice] mod_python: using mutex_directory /tmp
>> [notice] Apache/2.2.22 (Debian) PHP/5.4.4-14+deb7u12 mod_python/3.3.1
>> Python/2.7.3 mod_ssl/2.2.22 OpenSSL/1.0.1e configured -- resuming
>> normal operations
>> [notice] caught SIGTERM, shutting down
>>
>> The configuration should be ok, or do I miss something
>>
>> primitive p_ps_apache lsb:apache2 \
>>         op monitor interval="60" timeout="30" \
>>         op start interval="0" timeout="30" \
>>         op start interval="0" timeout="30"
>>
>> Many thanks
>
>> hi, we are using debian and selinux is default disabled in debian. we
>> don't use it either is there no way to find what causes apache not to
>> start? many thanks!!!! On 07/11/2014 01:36 AM, Andrew Beekhof wrote:
>>>>> On 10 Jul 2014, at 7:58 pm, W Forum W<wforumw at gmail.com>  wrote:
>>>>>
>>>>>> Hi thanks for the help.
>>>>>> the status url is configured and working, also no error in apache
>>>> log when I start the service manually
>>>>>> any other ideas where to look??
>>>>> selinux. if it starts from the command line but not in the cluster
>>>> its very often selinux
>>>>>> many thanks!!
>>>>>>
>>>>>>
>>>>>> On 07/09/2014 12:53 AM, Andrew Beekhof wrote:
>>>>>>> On 8 Jul 2014, at 11:15 pm, W Forum W<wforumw at gmail.com>
>>>>>>>   wrote:
>>>>>>>
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I have a two node cluster with a DRBD, heartbeat and pacemaker (on
>>>> Debian Wheezy)
>>>>>>>> The cluster is working fine. 2 DRBD resources, Shared IP, 2 File
>>>> systems and a postgresql database start, stop, migrate, ... correctly.
>>>>>>>> Now the problem is with the lsb:apache2 resource agent.
>>>>>>>> When I try to start is (crm resource start p_ps_apache)
>>>> immediately I got an error like
>>>>>>>> p_ps_apache_monitor_60000 (node=wegc203136, call=653, rc=7,
>>>> status=complete): not running
>>>>>>>> When I start Apache from the console (service apache2 start), it
>>>> works fine
>>>>>>>> I have checked if the Init Script LSB is compatible  (see
>>>>>>>> http://www.linux-ha.org/wiki/LSB_Resource_Agents
>>>>>>>> ).
>>>>>>>> All sequences tested are ok
>>>>>>>>
>>>>>>>> How can I found out why crm is not starting Apache?
>>>>>>>>
>>>>>>> most likely the status url is not setup/configured.
>>>>>>> have you checked the apache logs?
>>>>>>>
>>>>>>>
>>>> On 07/11/2014 05:41 PM, Michael Monette wrote:
>>>> Is there a certificate passphrase when starting apache from command line?
>>>>
>>>> On July 11, 2014 11:38:11 AM EDT, W Forum W<wforumw at gmail.com>  wrote:
>>>>
>>>>      hi,
>>>>
>>>>      we are using debian and selinux is default disabled in debian.
>>>>      we don't use it either
>>>>
>>>>      is there no way to find what causes apache not to start?
>>>>
>>>>      many thanks!!!!
>>>>
>>>>      On 07/11/2014 01:36 AM, Andrew Beekhof wrote:
>>>>>      On 10 Jul 2014, at 7:58 pm, W Forum W<wforumw at gmail.com>  wrote:
>>>>>
>>>>>>      Hi thanks for the help.
>>>>>>      the status url is configured and working, also no error in apache log when I start the service manually
>>>>>>
>>>>>>      any other ideas where to look??
>>>>>      selinux. if it starts from the command line but not in the cluster its very often selinux
>>>>>
>>>>>>      many thanks!!
>>>>>>
>>>>>>
>>>>>>      On 07/09/2014 12:53 AM, Andrew Beekhof wrote:
>>>>>>>      On 8 Jul 2014, at 11:15 pm, W Forum W<wforumw at gmail.com>
>>>>>>>       wrote:
>>>>>>>
>>>>>>>
>>>>>>>>      Hi,
>>>>>>>>
>>>>>>>>      I have a two node cluster with a DRBD, heartbeat and pacemaker (on Debian Wheezy)
>>>>>>>>      The cluster is working fine. 2 DRBD resources, Shared IP, 2 File systems and a postgresql database start, stop, migrate, ... correctly.
>>>>>>>>
>>>>>>>>      Now the problem is with the lsb:apache2 resource agent.
>>>>>>>>      When I try to start is (crm resource start p_ps_apache) immediately I got an error like
>>>>>>>>
>>>>>>>>      p_ps_apache_monitor_60000 (node=wegc203136, call=653, rc=7, status=complete): not running
>>>>>>>>
>>>>>>>>      When I start Apache from the console (service apache2 start), it works fine
>>>>>>>>
>>>>>>>>      I have checked if the Init Script LSB is compatible  (see
>>>>>>>>      http://www.linux-ha.org/wiki/LSB_Resource_Agents
>>>>>>>>      ).
>>>>>>>>      All sequences tested are ok
>>>>>>>>
>>>>>>>>      How can I found out why crm is not starting Apache?
>>>>>>>>
>>>>>>>      most likely the status url is not setup/configured.
>>>>>>>      have you checked the apache logs?
>>>>>>>
>>>>>>>
>>>> 08.07.2014 16:15, W Forum W wrote:
>>>> Hi,
>>>>
>>>> I have a two node cluster with a DRBD, heartbeat and pacemaker (on
>>>> Debian Wheezy)
>>>> The cluster is working fine. 2 DRBD resources, Shared IP, 2 File systems
>>>> and a postgresql database start, stop, migrate, ... correctly.
>>>>
>>>> Now the problem is with the lsb:apache2 resource agent.
>>>> When I try to start is (crm resource start p_ps_apache) immediately I
>>>> got an error like
>>>>
>>>> /p_ps_apache_monitor_60000 (node=wegc203136, call=653, rc=7,
>>>> status=complete): not running/
>>>>
>>>> When I start Apache from the console (service apache2 start), it works fine
>>>>
>>>> I have checked if the Init Script LSB is compatible  (see
>>>> http://www.linux-ha.org/wiki/LSB_Resource_Agents).
>>>> All sequences tested are ok
>>>>
>>>> How can I found out why crm is not starting Apache?
>>> Is it really not started, or just is not configured enough to be
>>> successfully monitored and then monitor op fails?
>>> What your apache logs say?

-- Ken Gaillot <kjgaillo at gleim.com>
Network Operations Center, Gleim Publications

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