Keith,
did you get your answer ?
As I understand ganglia - the multicast port of gmond.conf is only used for
groups of cluster nodes to share information using multicast. I never
noramlly change the default
gmetad opens an explicit port on the target node(s). I think that this is
called 'xml_port' in gmond.conf. I never normally change the default.
The think we do do is change the mcast_channel address in gmond.conf so that
each cluster has a unique value. This prevents cross-talk when we have
several clusters on the same ethernet switch.
Yours,
Daniel.
--------------------------------------------------------------
Dr. Dan Kidger, Quadrics Ltd. [EMAIL PROTECTED]
One Bridewell St., Bristol, BS1 2AA, UK 0117 915 5505
----------------------- www.quadrics.com --------------------
> -----Original Message-----
> From: Keith Poirier [mailto:[EMAIL PROTECTED]
> Sent: 10 September 2003 18:04
> To: '[email protected]'
> Subject: [Ganglia-general] Questions about gmetad and multicast ports
>
>
> I have a cluster where I would like to divide is as follows:
>
> the datasources from gmetad.conf:
>
> data_source "Test Cluster - Compute nodes" cn1:8656
> data_source "Test Cluster - Login node" login1:8655
> data_source "Test Cluster - Admin nodes" admin1:8654
> data_source "Test Cluster - IO nodes" io1:8653
>
>
> The correspnding gmond.conf files on each of these nodes
> would have the
> mcast_port set to the same.
>
> mcast_port 8653
>
> when I do this I get no data, but if I remove the port from the
> gmetad.conf config file (data_source "Test Cluster - Compute
> nodes" cn1)
> It works...
>
>
> I'm obviously misunderstanding something... Can anyone shed
> some light?
>
>
>
>
>
> thanks,
> --
> Keith Poirier
> HPTC North America
> Hewlett Packard Company
>
>
>
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