I don't understand why Configuration 1, or Configuration 2 (below) do
not work.
Hadoop <http://lucene.apache.org/hadoop/> is a distributed processing
frame work.
The default core per machine configuration has the processes reporting
to localhost:8649 - it appears to be via udp.
I add a udp receive block in my /etc/gmond.conf, this is constant in all
of my configuration attempts
/* You can specify as many udp_recv_channels as you like as well. */
udp_recv_channel {
port = 8649
}
I have 3 different configurations I have tried, one of them works, but I
don't understand why it works and the others do not.
Configuration 1:
hadoop tasks configured to report to localhost:8649
When I do this, I see the hadoop reported metrics in the local gmond's
xml report under the /localhost.localdomain /and ip address /127.0.0.1/.
These metrics are not visible when I look at the xml output from and of
the other node's gmond processes.
In addition, if there is a gmetric talking to this know, the graphs for
these metrics are labeled as localhost.localdomain.
Configuration 2:
hadoop tasks configured to report to `hostname`:8649
The hadoop reported metrics are visible in the xml report under
/hostname/ and the ip address /the machine ip/. Only the local machine's
hadoop metrics are visible in the gmond xml report.
Configuration 3:
hadoop tasks configured to report to /CLUSTER_MASTER_NODE:/8649 and the
gmetad process has a data_source line with /CLUSTER_MASTER_NODE:/8649
In this configuration I see all of the cluster node's hadoop metrics in
the gmetrics area.
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