[one-users] Host hooks aren't triggered

Zaina AFOULKI zaina.afoulki at ensi-bourges.fr
Sat Apr 2 03:22:55 PDT 2011


 Hi Tino,

 I changed as you advised and it prints:
 <VM_POOL/>


 On Fri, 1 Apr 2011 18:06:57 +0200, Tino Vazquez wrote:
> Hi,
>
> Everything seems alright, except for the xpath expression returned 
> nil
> object. So please let's try debugging the vms fetched:
>
> ---
> class OpenNebula::VirtualMachinePool
>   attr_reader :xml
> end
>
> my_file.puts vms.xml
> ---
>
> Regards,
>
> -Tino
>
> --
> Constantino Vázquez Blanco | dsa-research.org/tinova
> Virtualization Technology Engineer / Researcher
> OpenNebula Toolkit | opennebula.org
>
>
>
> On Fri, Apr 1, 2011 at 5:47 PM, Zaina AFOULKI
> <zaina.afoulki at ensi-bourges.fr> wrote:
>> Hi Tino,
>>
>> I added the lines as you asked and I get this in the 
>> /tmp/remove_me.txt
>> OpenNebula host  NilClass
>> NilClass
>>
>> $ onehost list -x
>> <HOST_POOL>
>>  <HOST>
>>    <ID>29</ID>
>>    <NAME>node1</NAME>
>>    <STATE>2</STATE>
>>    <IM_MAD>im_kvm</IM_MAD>
>>    <VM_MAD>vmm_kvm</VM_MAD>
>>    <TM_MAD>tm_nfs</TM_MAD>
>>    <LAST_MON_TIME>1301672703</LAST_MON_TIME>
>>    <CLUSTER>default</CLUSTER>
>>    <TEMPLATE>
>>      <ARCH><![CDATA[x86_64]]></ARCH>
>>      <CPUSPEED><![CDATA[1998]]></CPUSPEED>
>>      <FREECPU><![CDATA[90.6]]></FREECPU>
>>      <FREEMEMORY><![CDATA[770956]]></FREEMEMORY>
>>      <HOSTNAME><![CDATA[node1]]></HOSTNAME>
>>      <HYPERVISOR><![CDATA[kvm]]></HYPERVISOR>
>>      <MODELNAME><![CDATA[Intel(R) Core(TM)2 Duo CPU E6550 @
>> 2.33GHz]]></MODELNAME>
>>      <NETRX><![CDATA[0]]></NETRX>
>>      <NETTX><![CDATA[0]]></NETTX>
>>      <TOTALCPU><![CDATA[200]]></TOTALCPU>
>>      <TOTALMEMORY><![CDATA[2056676]]></TOTALMEMORY>
>>      <USEDCPU><![CDATA[109.4]]></USEDCPU>
>>      <USEDMEMORY><![CDATA[1285720]]></USEDMEMORY>
>>    </TEMPLATE>
>>    <HOST_SHARE>
>>      <HID>29</HID>
>>      <DISK_USAGE>0</DISK_USAGE>
>>      <MEM_USAGE>262144</MEM_USAGE>
>>      <CPU_USAGE>10</CPU_USAGE>
>>      <MAX_DISK>0</MAX_DISK>
>>      <MAX_MEM>2056676</MAX_MEM>
>>      <MAX_CPU>200</MAX_CPU>
>>      <FREE_DISK>0</FREE_DISK>
>>      <FREE_MEM>770956</FREE_MEM>
>>      <FREE_CPU>90</FREE_CPU>
>>      <USED_DISK>0</USED_DISK>
>>      <USED_MEM>1285720</USED_MEM>
>>      <USED_CPU>109</USED_CPU>
>>      <RUNNING_VMS>1</RUNNING_VMS>
>>    </HOST_SHARE>
>>  </HOST>
>>  <HOST>
>>    <ID>31</ID>
>>    <NAME>node2</NAME>
>>    <STATE>4</STATE>
>>    <IM_MAD>im_kvm</IM_MAD>
>>    <VM_MAD>vmm_kvm</VM_MAD>
>>    <TM_MAD>tm_nfs</TM_MAD>
>>    <LAST_MON_TIME>1301672409</LAST_MON_TIME>
>>    <CLUSTER>default</CLUSTER>
>>    <TEMPLATE>
>>      <ARCH><![CDATA[x86_64]]></ARCH>
>>      <CPUSPEED><![CDATA[1998]]></CPUSPEED>
>>      <FREECPU><![CDATA[200.0]]></FREECPU>
>>      <FREEMEMORY><![CDATA[1800824]]></FREEMEMORY>
>>      <HOSTNAME><![CDATA[node2]]></HOSTNAME>
>>      <HYPERVISOR><![CDATA[kvm]]></HYPERVISOR>
>>      <MODELNAME><![CDATA[Intel(R) Core(TM)2 Duo CPU E6550 @
>> 2.33GHz]]></MODELNAME>
>>      <NETRX><![CDATA[0]]></NETRX>
>>      <NETTX><![CDATA[0]]></NETTX>
>>      <TOTALCPU><![CDATA[200]]></TOTALCPU>
>>      <TOTALMEMORY><![CDATA[2056676]]></TOTALMEMORY>
>>      <USEDCPU><![CDATA[0.0]]></USEDCPU>
>>      <USEDMEMORY><![CDATA[255852]]></USEDMEMORY>
>>    </TEMPLATE>
>>    <HOST_SHARE>
>>      <HID>31</HID>
>>      <DISK_USAGE>0</DISK_USAGE>
>>      <MEM_USAGE>0</MEM_USAGE>
>>      <CPU_USAGE>0</CPU_USAGE>
>>      <MAX_DISK>0</MAX_DISK>
>>      <MAX_MEM>2056676</MAX_MEM>
>>      <MAX_CPU>200</MAX_CPU>
>>      <FREE_DISK>0</FREE_DISK>
>>      <FREE_MEM>1800824</FREE_MEM>
>>      <FREE_CPU>200</FREE_CPU>
>>      <USED_DISK>0</USED_DISK>
>>      <USED_MEM>255852</USED_MEM>
>>      <USED_CPU>0</USED_CPU>
>>      <RUNNING_VMS>0</RUNNING_VMS>
>>    </HOST_SHARE>
>>  </HOST>
>> </HOST_POOL>
>>
>>
>>
>> $ onevm list -x
>>
>>
>> <VM_POOL>
>>  <VM>
>>    <ID>3056</ID>
>>    <UID>2</UID>
>>    <USERNAME>sfr</USERNAME>
>>    <NAME>sfr-ar</NAME>
>>    <LAST_POLL>1301672685</LAST_POLL>
>>    <STATE>3</STATE>
>>    <LCM_STATE>3</LCM_STATE>
>>    <STIME>1301672613</STIME>
>>    <ETIME>0</ETIME>
>>    <DEPLOY_ID>one-3056</DEPLOY_ID>
>>    <MEMORY>0</MEMORY>
>>    <CPU>0</CPU>
>>    <NET_TX>0</NET_TX>
>>    <NET_RX>0</NET_RX>
>>    <LAST_SEQ>0</LAST_SEQ>
>>    <TEMPLATE>
>>      <CPU><![CDATA[0.1]]></CPU>
>>      <DISK>
>>        <DISK_ID><![CDATA[0]]></DISK_ID>
>>        <SOURCE><![CDATA[/home/oneadmin/vmu.img]]></SOURCE>
>>        <TARGET><![CDATA[sda]]></TARGET>
>>      </DISK>
>>      <FEATURES>
>>        <ACPI><![CDATA[yes]]></ACPI>
>>      </FEATURES>
>>      <HAIZEA>
>>        <DURATION><![CDATA[00:07:00]]></DURATION>
>>        <PREEMPTIBLE><![CDATA[no]]></PREEMPTIBLE>
>>        <START><![CDATA[+00:00:50]]></START>
>>      </HAIZEA>
>>      <MEMORY><![CDATA[256]]></MEMORY>
>>      <NAME><![CDATA[sfr-ar]]></NAME>
>>      <NIC>
>>        <BRIDGE><![CDATA[br0]]></BRIDGE>
>>        <IP><![CDATA[172.30.8.12]]></IP>
>>        <MAC><![CDATA[02:00:ac:1e:08:0c]]></MAC>
>>        <NETWORK><![CDATA[orange_public]]></NETWORK>
>>        <NETWORK_ID><![CDATA[20]]></NETWORK_ID>
>>      </NIC>
>>      <OS>
>>        <BOOT><![CDATA[hd]]></BOOT>
>>        <ROOT><![CDATA[sda]]></ROOT>
>>      </OS>
>>      <RAW>
>>        <DATA><![CDATA[<devices><serial type="pty"><source
>> path="/dev/pts/5"/><target port="0"/></serial><console type="pty"
>> tty="/dev/pts/5"><source path="/dev/pts/5"/><target
>> port="0"/></console><graphics type="vnc" port="5901"
>> autoport="yes"/></devices>]]></DATA>
>>        <TYPE><![CDATA[kvm]]></TYPE>
>>      </RAW>
>>      <VMID><![CDATA[3056]]></VMID>
>>    </TEMPLATE>
>>    <HISTORY>
>>      <SEQ>0</SEQ>
>>      <HOSTNAME>node1</HOSTNAME>
>>      <HID>29</HID>
>>      <STIME>1301672663</STIME>
>>      <ETIME>0</ETIME>
>>      <PSTIME>1301672663</PSTIME>
>>      <PETIME>1301672665</PETIME>
>>      <RSTIME>1301672665</RSTIME>
>>      <RETIME>0</RETIME>
>>      <ESTIME>0</ESTIME>
>>      <EETIME>0</EETIME>
>>      <REASON>0</REASON>
>>    </HISTORY>
>>  </VM>
>>  <VM>
>>    <ID>3057</ID>
>>    <UID>2</UID>
>>    <USERNAME>sfr</USERNAME>
>>    <NAME>sfr-ar</NAME>
>>    <LAST_POLL>1301672685</LAST_POLL>
>>    <STATE>3</STATE>
>>    <LCM_STATE>3</LCM_STATE>
>>    <STIME>1301672614</STIME>
>>    <ETIME>0</ETIME>
>>    <DEPLOY_ID>one-3057</DEPLOY_ID>
>>    <MEMORY>0</MEMORY>
>>    <CPU>0</CPU>
>>    <NET_TX>0</NET_TX>
>>    <NET_RX>0</NET_RX>
>>    <LAST_SEQ>0</LAST_SEQ>
>>    <TEMPLATE>
>>      <CPU><![CDATA[0.1]]></CPU>
>>      <DISK>
>>        <DISK_ID><![CDATA[0]]></DISK_ID>
>>        <SOURCE><![CDATA[/home/oneadmin/vmu.img]]></SOURCE>
>>        <TARGET><![CDATA[sda]]></TARGET>
>>      </DISK>
>>      <FEATURES>
>>        <ACPI><![CDATA[yes]]></ACPI>
>>      </FEATURES>
>>      <HAIZEA>
>>        <DURATION><![CDATA[00:07:00]]></DURATION>
>>        <PREEMPTIBLE><![CDATA[no]]></PREEMPTIBLE>
>>        <START><![CDATA[+00:00:50]]></START>
>>      </HAIZEA>
>>      <MEMORY><![CDATA[256]]></MEMORY>
>>      <NAME><![CDATA[sfr-ar]]></NAME>
>>      <NIC>
>>        <BRIDGE><![CDATA[br0]]></BRIDGE>
>>        <IP><![CDATA[172.30.8.10]]></IP>
>>        <MAC><![CDATA[02:00:ac:1e:08:0a]]></MAC>
>>        <NETWORK><![CDATA[orange_public]]></NETWORK>
>>        <NETWORK_ID><![CDATA[20]]></NETWORK_ID>
>>      </NIC>
>>      <OS>
>>        <BOOT><![CDATA[hd]]></BOOT>
>>        <ROOT><![CDATA[sda]]></ROOT>
>>      </OS>
>>      <RAW>
>>        <DATA><![CDATA[<devices><serial type="pty"><source
>> path="/dev/pts/5"/><target port="0"/></serial><console type="pty"
>> tty="/dev/pts/5"><source path="/dev/pts/5"/><target
>> port="0"/></console><graphics type="vnc" port="5901"
>> autoport="yes"/></devices>]]></DATA>
>>        <TYPE><![CDATA[kvm]]></TYPE>
>>      </RAW>
>>      <VMID><![CDATA[3057]]></VMID>
>>    </TEMPLATE>
>>    <HISTORY>
>>      <SEQ>0</SEQ>
>>      <HOSTNAME>node2</HOSTNAME>
>>      <HID>31</HID>
>>      <STIME>1301672664</STIME>
>>      <ETIME>0</ETIME>
>>      <PSTIME>1301672664</PSTIME>
>>      <PETIME>1301672684</PETIME>
>>      <RSTIME>1301672684</RSTIME>
>>      <RETIME>0</RETIME>
>>      <ESTIME>0</ESTIME>
>>      <EETIME>0</EETIME>
>>      <REASON>0</REASON>
>>    </HISTORY>
>>  </VM>
>> </VM_POOL>
>>
>>
>>
>> On Fri, 1 Apr 2011 17:31:44 +0200, Tino Vazquez wrote:
>>>
>>> Hi,
>>>
>>> Please try the following:
>>>
>>> my_file.puts "OpenNebula host  #{vm_ids_array.class}"
>>> my_file.puts vm_ids_array.class
>>>
>>> Also, please send the output of
>>>
>>> $ onehost list -x
>>> $ onevm list -x
>>>
>>> Regards,
>>>
>>> -Tino
>>>
>>> --
>>> Constantino Vázquez Blanco | dsa-research.org/tinova
>>> Virtualization Technology Engineer / Researcher
>>> OpenNebula Toolkit | opennebula.org
>>>
>>>
>>>
>>> On Fri, Apr 1, 2011 at 5:23 PM, Zaina AFOULKI
>>> <zaina.afoulki at ensi-bourges.fr> wrote:
>>>>
>>>> Hi Tino,
>>>>
>>>> I added this to the ruby script (I'm new to Ruby, so I'm not sure 
>>>> it's
>>>> correct):
>>>>
>>>> my_file.puts "OpenNebula host  #{vm_ids_array.class}"
>>>> for item in 0...vm_ids_array.length
>>>>        my_file.puts " #{vm_ids_array[item]}";
>>>> end
>>>>
>>>> $cat /tmp/remove_me.txt
>>>> OpenNebula host has failed 31
>>>> NilClass
>>>>
>>>> oned.log:
>>>>
>>>> Fri Apr  1 17:16:36 2011 [HKM][D]: Message received: LOG - 31 
>>>> Command
>>>> execution fail: /home/oneadmin/one/share/hooks/host_error.rb 31 -r 
>>>> y
>>>> Fri Apr  1 17:16:36 2011 [HKM][D]: Message received: LOG - 31 
>>>> STDERR
>>>> follows.
>>>> Fri Apr  1 17:16:36 2011 [HKM][D]: Message received: LOG - 31
>>>> /home/oneadmin/one/share/hooks/host_error.rb:81: undefined method
>>>> `length'
>>>> for nil:NilClass (NoMethodError)
>>>>
>>>> Thanks for your help,
>>>>
>>>> --
>>>> Zaina
>>>>
>>>> On Fri, 1 Apr 2011 12:31:21 +0100, Tino Vazquez wrote:
>>>>>
>>>>> Hi Zaina,
>>>>>
>>>>> Could you please print out also the content of "vm_ids_array"? I 
>>>>> am
>>>>> afraid the xpath expression may not be doing its job.
>>>>>
>>>>> Regards,
>>>>>
>>>>> -Tino
>>>>>
>>>>> --
>>>>> Constantino Vázquez Blanco, MSc
>>>>> OpenNebula Major Contributor
>>>>> www.OpenNebula.org | @tinova79
>>>>>
>>>>>
>>>>>
>>>>> On Fri, Apr 1, 2011 at 8:57 AM, Zaina AFOULKI
>>>>> <zaina.afoulki at ensi-bourges.fr> wrote:
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I checked the ruby script that's called and it seems that the 
>>>>>> array
>>>>>> containing the list of VMs is empty
>>>>>> vm_ids_array =
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> 
>>>>>> vms.retrieve_elements("/VM_POOL/VM[STATE=3]/HISTORY[HOSTNAME=\"#{host_name}\"]/../ID")
>>>>>>
>>>>>> I tried printing something to a tmp file to make sure that the 
>>>>>> script
>>>>>> gets
>>>>>> the right host id.
>>>>>> my_file = File.new("/tmp/remove_me.txt", "w")
>>>>>> my_file.puts "OpenNebula host has failed #{ARGV[0]}"
>>>>>>
>>>>>> The hostname and host_id are correctly detected by the script.
>>>>>>
>>>>>> Thank you for any hints on how to fix this,
>>>>>>
>>>>>> --
>>>>>> Zaina
>>>>>>
>>>>>> On Thu, 31 Mar 2011 16:36:22 +0200, Zaina AFOULKI wrote:
>>>>>>>
>>>>>>> I just checked back the oned.log and it seems that the hook is
>>>>>>> executed
>>>>>>> [HKM][D]: Message received: EXECUTE SUCCESS 31 disable
>>>>>>>
>>>>>>> However the VMs aren't re-submitted as expected ?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> --
>>>>>>> Zaina
>>>>>>>
>>>>>>> On Thu, 31 Mar 2011 16:20:27 +0200, Zaina AFOULKI wrote:
>>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I'm having some trouble getting the HOST_HOOKS to work:
>>>>>>>> I added this to the configuration file and restarted oned.
>>>>>>>>
>>>>>>>> HOST_HOOK = [
>>>>>>>>    name      = "disable",
>>>>>>>>    on        = "DISABLE",
>>>>>>>>    command   = "host_error.rb",
>>>>>>>>    arguments = "$HID -r y",
>>>>>>>>    remote    = "no" ]
>>>>>>>>
>>>>>>>> However when I disable a host using "onehost disable" the VMs 
>>>>>>>> aren't
>>>>>>>> re-submitted.
>>>>>>>> The oned.log doesn't indicate that the hook has been 
>>>>>>>> triggered.
>>>>>>>>
>>>>>>>> I'm using OpenNebula 2.2 and the script host_error.rb is 
>>>>>>>> indeed
>>>>>>>> located in my $ONE_LOCATION/share/hooks/
>>>>>>>>
>>>>>>>> What am I doing wrong? Thanks
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at lists.opennebula.org
>>>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>
>>>>
>>>> --
>>>> Zaina AFOULKI
>>>> Étudiante à l'Ecole Nationale Supérieure d'Ingénieurs de Bourges.
>>>> 1ère année Sécurité et Technologies Informatiques
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opennebula.org
>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>
>>
>> --
>> Zaina AFOULKI
>> Étudiante à l'Ecole Nationale Supérieure d'Ingénieurs de Bourges.
>> 1ère année Sécurité et Technologies Informatiques
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>

-- 
 Zaina



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