On Wed, Mar 23, 2011 at 11:05:50AM -0400, Seth Graham wrote:
>
>That might work, but I don't think anyone sets up their ganglia so that a
>single gmond is trying aggregate all clusters. That's what the gmetad daemon
>is for.
But there may be cases where that is useful. For example if you have a
single host on a cluster head node, and want multiple different
groupings (i.e. ganglia "clusters") to be exported to a gmetad system
that is outside of the cluster.
For example:
Monitor Host --> Head node ---> compute gmond aggregator
(gmetad) (gmond aggregator) +-> storage gmond aggregator
Currently, you have to run two different gmond processes on the head
node, and poll both independently.
>Also note that even though you have a separate multicast address for each
>cluster, the port still has to be unique. The port is what gmetad and the web
>frontend use to distinguish between clusters. You get really weird results if
>multiple data_source lines use the same port.
Yep. Which is kind of annoying. :-/
>
>
>An ideal configuration might be:
>
>Each of the 5 clusters has a unique gmond.conf, with its own multicast address
>and port number.
>
>The gmetad host has 5 data_source lines to query one host from each of the 5
>clusters.
>
>
>
>
>On Mar 23, 2011, at 9:52 AM, Ron Cavallo wrote:
>
>>
>> I need some help. I am trying to configure my gmetad to collect from
>> different clusters on different IP's. I have 5 clusters. This is my
>> gmetad collections server's local gmond.conf configuration:
>>
>>
>> /* 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 = 239.2.11.72
>> 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
>> port = 8649
>> bind = 239.2.11.71
>> }
>>
>> udp_recv_channel {
>> mcast_join = 239.2.11.72
>> port = 8649
>> bind = 239.2.11.72
>> }
>>
>> udp_recv_channel {
>> mcast_join = 239.2.11.73
>> port = 8649
>> bind = 239.2.11.73
>> }
>>
>> udp_recv_channel {
>> mcast_join = 239.2.11.74
>> port = 8649
>> bind = 239.2.11.74
>> }
>>
>> udp_recv_channel {
>> mcast_join = 239.2.11.75
>> port = 8649
>> bind = 239.2.11.75
>> }
>>
>> udp_recv_channel {
>> port = 8649
>> }
>>
>> This is an excerpt from ONE OF THE CLUSTERS ABOVE (the .74 cluster)
>>
>> /* 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 = 239.2.11.74
>> port = 8649
>> ttl = 1
>> }
>>
>> /* You can specify as many udp_recv_channels as you like as well. */
>> udp_recv_channel {
>> mcast_join = 239.2.11.74
>> port = 8649
>> bind = 239.2.11.74
>> }
>>
>> I configure only one server in a cluster to be polled from the gmetad
>> since that server has all of the cluster members information in it
>> anyway. Here is how I have it configured to talk to the one gmond shown
>> directly above:
>>
>> data_source "SaksGoldApps" 45 sd1mzp01lx.saksdirect.com:8649
>>
>> ------------------------------------------------------------------------------
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>
>
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Jesse Becker
NHGRI Linux support (Digicon Contractor)
------------------------------------------------------------------------------
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growing manageability and security demands of your customers. Businesses
are taking advantage of Intel(R) vPro (TM) technology - will your software
be a part of the solution? Download the Intel(R) Manageability Checker
today! http://p.sf.net/sfu/intel-dev2devmar
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