I think he's just confusing the roles of gmetad and gmond.
Johann,
Your flow should look like this:
gmond client (node) - - > gmond server (cluster master) < - - > gmetad
So my gmond.conf for a node (www001) in Cluster A looks like this: (I use
unicast as opposed to multicast)
udp_send_channel {
mcast_join = mon1
port = 8650
ttl = 1
}
This sends data to another gmond running on another server collecting data
from all the nodes (www002, www003, etc)
My gmond.conf on the ClusterA master (mon1) looks like:
udp_send_channel {
mcast_join = mon1
port = 8650
ttl = 1
}
udp_recv_channel {
port = 8650
family = inet4
}
tcp_accept_channel {
port = 8650
}
My gmetad on my grid master looks like :
data_source "$foo" mon1:8661
Date: Wed, 26 Nov 2008 10:11:40 -0700
> From: "Brad Nicholes" <[EMAIL PROTECTED]>
> Subject: Re: [Ganglia-general] Setting up Ganglia
> To: <[email protected]>, "Johann Spies"
> <[EMAIL PROTECTED]>
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset=US-ASCII
>
> Your gmetad data_source should not be trying to talk to every gmond in
> your cluster. In multicast mode, which is the default mode, every gmond
> talks to every other gmond and stores metrics for the entire cluster. What
> this means is that gmetad only need to ping one gmond node to get the
> metrics for the entire cluster. The only reason to include more than one IP
> address in the data_source is for fail over purposes. If the primary gmond
> goes down, then the secondary data_source will pick up and report for the
> rest of the cluster. Even in unicast mode where all of the gmond nodes talk
> to a single gmond node rather than to every other node, your data_source
> should only be referencing the master gmond node.
>
> Brad
>
> >>> On 11/26/2008 at 6:51 AM, in message <[EMAIL PROTECTED]>,
> Johann
> Spies <[EMAIL PROTECTED]> wrote:
> > I do not have a lot of success in getting Ganglia to work on cluster
> > of 22 computers.
> >
> > It is an OpenSuse system and I have installed gmond on all the nodes
> > and it is running an all the nodes.
> >
> > On the head-node I have the following in /etc/ganglia/metad.conf:
> >
> > data_source "Ratashasta" localhost:8649 192.168.129.2:8649
> > 192.168.129.3:8649 192.168.129.4:8649 \
> > 192.168.129.5:8649 192.168.129.6:8649 192.168.129.7:8649
> > 192.168.129.8:8649 192.168.129.9:8649 \
> > 192.168.129.10:8649 192.168.129.11:8649 192.168.129.12:8649 \
> > 192.168.129.13:8649 192.168.129.14:8649 192.168.129.15:8649 \
> > 192.168.129.16:8649 192.168.129.17:8649 192.168.129.18:8649 \
> >
> > and
> >
> > trusted_hosts 127.0.0.1 192.168.129.2 192.168.129.3 192.168.129.4 \
> > 192.168.129.5 192.168.129.6 192.168.129.7 192.168.129.8 192.168.129.9 \
> > 192.168.129.10 192.168.129.11 192.168.129.12 \
> > 192.168.129.13 192.168.129.14 192.168.129.15 \
> > 192.168.129.16 192.168.129.17 192.168.129.18 \
> > 192.168.129.19 192.168.129.20 192.168.129.21 192.168.129.22
> >
> > When I run sudo gstat -a
> > The result is:
> >
> >
> > CLUSTER INFORMATION
> > Name: Ratashta
> > Hosts: 1
> > Gexec Hosts: 0
> > Dead Hosts: 0
> > Localtime: Wed Nov 26 15:48:15 2008
> >
> > CLUSTER HOSTS
> > Hostname LOAD CPU
> > Gexec
> > CPUs (Procs/Total) [ 1, 5, 15min] [ User, Nice, System,
> > Idle, Wio]
> >
> > head001.sun.ac.za
> > 0 ( 0/ 289) [ 0.04, 0.31, 0.52] [ 0.1, 0.0, 0.0, 99.4,
> > 0.4] OFF
> >
> > I have changed the firewall through yast to allow udp traffic from
> > 146.232.128.108/32 on port 8649 as well as from 192.168.129.0/24 (the
> > nodes on internal network.
> >
> > I have gmond running an all the nodes.
> >
> > I don't see that IPTABLES is blocking communication between the
> > head-node and the other and I don't know what to look for next.
> >
> > Any help will be appreciated.
> >
> >
> > Regards
> > Johann
>
>
>
>
>
>
>
> ------------------------------
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>
> ------------------------------
>
> _______________________________________________
> Ganglia-general mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/ganglia-general
>
>
> End of Ganglia-general Digest, Vol 30, Issue 17
> ***********************************************
>
--
Brad E. Fino
[EMAIL PROTECTED]
858-245-9099
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Ganglia-general mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ganglia-general
