Thanks!
I'm about to use it with KVM and Vbox on Debian.
Le 02/05/13 18:46, Nicholas Satterly a écrit :
> FYI, I finally got this working. Perhaps it had actually been working
> all along but I hadn't noticed. I had assumed the the KVM's on the
> hypervisor would show up as individual hosts within the same Ganglia
> cluster as the hypervisor. I was mistaken. Metrics for all KVM's just
> appear as metrics under the hypervisor hostname on which they run,
> with the VM name prepended to the metric name. For example...
>
> <METRIC NAME="infpupmst11.vdisk_bytes_written" VAL="6246" TYPE="float"
> UNITS="" TN="7" TMAX="60" DMAX="600" SLOPE="both">
> <EXTRA_DATA>
> <EXTRA_ELEMENT NAME="TITLE" VAL="infpupmst11: VM Bytes Written"/>
> <EXTRA_ELEMENT NAME="DESC" VAL="infpupmst11: VM Bytes Written"/>
> <EXTRA_ELEMENT NAME="GROUP" VAL="vm disk"/>
> </EXTRA_DATA>
> </METRIC>
>
> So, in summary to get this working..,
>
> 1. ensure you are running the KVM-enabled version of hsflowd agent
> (for RedHat/Centos you can just download it, for Ubuntu/Debian you
> have to build your own)
> 2. ensure you have configured the hsflowd agent to send metrics to the
> ganglia collector by setting "collector { ip = 127.0.0.1 }" or
> whatever destination your ganglia agent is running on
> 3. ensure that you have configured the ganglia collector to receive vm
> metrics using "sflow { accept_vm_metrics = yes }"
> 4. ensure firewall rules allow udp/6343
>
> And, if you are testing this with virtualbox on ubuntu/debian ensure
> you are running the vbox enabled version of libvirt first -- you'll
> probably have to compile from source packages.
>
> Hope that helps someone else.
>
> --Nick.
>
> On Tue, Feb 5, 2013 at 4:05 PM, Nicholas Satterly <nfsatte...@gmail.com>
> wrote:
>> Hi Cyrille,
>>
>> Can you run the following commands and copy-paste the output into a reply
>> email?
>>
>> gmond --version
>> strings /usr/sbin/gmond | grep -i sflow
>> hsflowd -v
>>
>> Thanks,
>> Nick
>>
>> On Tue, Feb 5, 2013 at 3:47 PM, Duverne, Cyrille
>> <cyrille.duve...@euranova.eu> wrote:
>>> Hello,
>>>
>>> Indeed this part was missing, but when I add it and restart ganglia, I get
>>> an error saying that module sFlow doesn't exist...
>>>
>>> I think I'm not running an enough recent version of ganglia, I'm using 3.5.0
>>>
>>> Thanks in advance for your help.
>>> CyD
>>>
>>>
>>>
>>> Mardi 05/02/2013 à 13:21 Nicholas Satterly a écrit:
>>>
>>> Hi,
>>>
>>> Not sure if you ever solved your problem but I think you are missing
>>> the following config stanza from gmond.conf for the gmond that is
>>> receiving the sFlow packets.
>>>
>>> sflow {
>>> accept_vm_metrics = yes
>>> }
>>>
>>> I'm just trying this out myself for the first time and see the VM
>>> metrics appear when gmond is run in debug mode but there is no trace
>>> of them in the XML output.
>>>
>>> $ gmond -d 2
>>> ...
>>> saving metadata for metric: infsrcprv10.vdisk_capacity host: smc02
>>> ***Allocating value packet for host--(null)-- and metric
>>> --infsrcprv10.vdisk_capacity-- ****
>>> ...
>>>
>>> I would guess that something is going wrong when decoding the sFlow
>>> packets because a host of "(null)" can't possibly work.
>>>
>>> Has anyone else go this working?
>>>
>>> Regards,
>>> Nick
>>>
>>> PS. I'm running ganglia agent version 3.5.0 and host sFlow agent version
>>> 1.22.2.
>>>
>>>
>>> On Wed, Jan 2, 2013 at 5:45 PM, Duverne, Cyrille
>>> <cyrille.duve...@euranova.eu> wrote:
>>>> Hello,
>>>>
>>>> I have a cluster of 4 machines, running Ubuntu 12.04 x86_64, sFlow and
>>>> Ganglia, here below the config I've set up :
>>>>
>>>> Master instance : /etc/gmond.conf :
>>>>
>>>> /* Feel free to specify as many udp_send_channels as you like. Gmond
>>>> used to only support having a single channel */
>>>> udp_send_channel {
>>>> mcast_join = inferno.local
>>>> /*mcast_join = 139.2.11.71 DEFAULT VALUE*/
>>>> port = 8649
>>>> ttl = 1
>>>> }
>>>>
>>>> /* You can specify as many udp_recv_channels as you like as well. */
>>>> udp_recv_channel {
>>>> /* mcast_join = 239.2.11.71 DEFAULT VALUE*/
>>>> port = 8649
>>>> /* bind = 239.2.11.71 DEFAULT VALUE*/
>>>> family = inet4
>>>> }
>>>>
>>>> /* channel to receive sFlow */
>>>> /* 6343 is the default sFlow port, an explicit sFlow */
>>>> /* configuration section is needed to override default */
>>>> udp_recv_channel {
>>>> port = 6343
>>>> }
>>>>
>>>> /* You can specify as many tcp_accept_channels as you like to share
>>>> an xml description of the state of the cluster */
>>>> tcp_accept_channel {
>>>> port = 8649
>>>> }
>>>>
>>>> Cluster machines :
>>>>
>>>> /etc/hsflowd.conf
>>>>
>>>> sflow {
>>>> DNSSD = off
>>>> polling = 20
>>>> sampling = 512
>>>> collector {
>>>> ip = 192.168.0.100
>>>> udpport = 6343
>>>> }
>>>> }
>>>>
>>>> /etc/gmond.conf :
>>>>
>>>> /* Feel free to specify as many udp_send_channels as you like. Gmond
>>>> used to only support having a single channel */
>>>> udp_send_channel {
>>>> mcast_join = inferno.local
>>>> port = 8649
>>>> ttl = 1
>>>> }
>>>>
>>>> /* You can specify as many udp_recv_channels as you like as well. */
>>>> udp_recv_channel {
>>>> port = 8649
>>>> family = inet4
>>>> }
>>>>
>>>> /* channel to receive sFlow */
>>>> /* 6343 is the default sFlow port, an explicit sFlow */
>>>> /* configuration section is needed to override default */
>>>> udp_recv_channel {
>>>> port = 6343
>>>> }
>>>>
>>>> /* You can specify as many tcp_accept_channels as you like to share
>>>> an xml description of the state of the cluster */
>>>> tcp_accept_channel {
>>>> port = 8649
>>>> }
>>>>
>>>> I can't see any stats of the VM running on those hosts in Gnaglia web
>>>> interface... Hosts are correctly monitored.
>>>>
>>>> What's wrong in this ?
>>>> Thanks a lot for your help.
>>>>
>>>> Cheers
>>>> Cyrille
>>>>
>>>>
>>>>
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>>>
>>>
>>> --
>>> gpg: using PGP trust model
>>> pub 4096R/1EE38BD9 2013-01-06 [expires: 2018-01-06]
>>> Key fingerprint = 3EE9 550D D9D8 DB65 58C2 B58D CE78 EC6C 1EE3 8BD9
>>> uid Nicholas Satterly (Debian Key) <nfsatte...@gmail.com>
>>> sub 4096R/23804EE9 2013-01-06 [expires: 2018-01-06]
>>
>>
>> --
>> gpg: using PGP trust model
>> pub 4096R/1EE38BD9 2013-01-06 [expires: 2018-01-06]
>> Key fingerprint = 3EE9 550D D9D8 DB65 58C2 B58D CE78 EC6C 1EE3 8BD9
>> uid Nicholas Satterly (Debian Key) <nfsatte...@gmail.com>
>> sub 4096R/23804EE9 2013-01-06 [expires: 2018-01-06]
>
>
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