Hi Jason:
On Sat, Oct 18, 2008 at 8:12 AM, Jason Venner <[EMAIL PROTECTED]> wrote:
> I don't understand why Configuration 1, or Configuration 2 (below) do not
> work.
>
>
> 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.
How is hadoop communicating with gmond? Are you using the gmetric
binary at all?
Cheers,
Bernard
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