On Mon, Nov 14, 2011 at 9:58 PM, Dejan Muhamedagic <de...@suse.de> wrote:
> Hi,
>
> On Thu, Jun 23, 2011 at 07:51:48AM +0200, Dominik Klein wrote:
>> Hi
>>
>> code snippet from
>> http://hg.linux-ha.org/agents/raw-file/7a11934b142d/heartbeat/VirtualDomain
>> (which I believe is the current version)
>>
>> VirtualDomain_Validate_All() {
>> <snip>
>>      if [ ! -r $OCF_RESKEY_config ]; then
>>       if ocf_is_probe; then
>>           ocf_log info "Configuration file $OCF_RESKEY_config not readable
>> during probe."
>>       else
>>           ocf_log error "Configuration file $OCF_RESKEY_config does not exist
>> or is not readable."
>>           return $OCF_ERR_INSTALLED
>>       fi
>>      fi
>> }
>> <snip>
>> VirtualDomain_Validate_All || exit $?
>> <snip>
>> if ocf_is_probe && [ ! -r $OCF_RESKEY_config ]; then
>>      exit $OCF_NOT_RUNNING
>> fi
>>
>> So, say one node does not have the config, but the cluster decides to
>> run the vm on that node. The probe returns NOT_RUNNING, so the cluster
>> tries to start the vm, that start returns ERR_INSTALLED, the cluster has
>> to try to recover from the start failure, so stop it, but that stop op
>> returns ERR_INSTALLED as well, so we need to be stonith'd.
>>
>> I think this is wrong behaviour.
>
> On stop, it should return OCF_SUCCESS. I wonder if it would be
> safe for the CRM to interpret ERR_INSTALLED on stop as "resource
> stopped."
>
> Opinions?

Feels dangerous.
Even if the binaries are missing, the RA should arguably look for and
kill any relevant processes before returning OK.

>
> Cheers,
>
> Dejan
>
> P.S. Very sorry for such a delay!
>
>> I read the comments about
>> configurations being on shared storage which might not be available at
>> certain points in time and I see the point. But the way this is
>> implemented clearly does not work for everybody. I vote for making this
>> configurable. Unfortunately, due to several reasons, I am not able to
>> contribute this patch myself at the moment.
>>
>> Regards
>> Dominik
>> _______________________________________________________
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