Thank you very much for the suggestion.
On 7/14/06, matt massie <[EMAIL PROTECTED]> wrote:
there is a C api for getting stats. if you take a look at
./gmond/gstat/gstat.c, you'll get an example of how to use it. you'll
need to link against libganglia.
gexec_cluster_t cluster;
gexec_host_t *host;
llist_entry *li;
rval = gexec_cluster(&cluster, ip, port );
if ( rval != 0) { /* could not get stats from gmond */ }
/* if you want all hosts */
host = cluster.hosts;
/* if you just want gexec enabled hosts */
host = cluster.gexec_hosts;
for( ; li != NULL; li = li->next )
{
host = li->val;
/* Do what you like with the host stats */
}
the gexec_host_t is defined in ./lib/ganglia.h
struct gexec_host_t {
char ip[64];
char name[GEXEC_HOST_STRING_LEN];
char domain[GEXEC_HOST_STRING_LEN];
double load_one;
double load_five;
double load_fifteen;
double cpu_user;
double cpu_nice;
double cpu_system;
double cpu_idle;
double cpu_wio;
unsigned int proc_run;
unsigned int proc_total;
unsigned int cpu_num;
time_t last_reported;
int gexec_on;
int name_resolved;
};
good luck!
-matt
[EMAIL PROTECTED] wrote:
> Arun,
>
> as an example, run "nc localhost 8651" on your ganglia server.
> That is the grid level raw data that could be used for snapshot
> processing.
>
> If you netcatted directly to a cluster member (or headnode if you
> unicast), then
> that provides current values for the cluster.
>
> So even though a C API does not exist as such, you could pretty easily
> make a wrapper that connects to the right host/port and slurps the
> data in.
>
> - richard
>
> -----Original Message-----
> *From:* [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] *On
> Behalf Of *Arun Babu
> *Sent:* 13 July 2006 05:47
> *To:* ganglia-developers@lists.sourceforge.net
> *Subject:* [Ganglia-developers] api for data gathering using ganglia
>
> Hi
> We have ganglia installed in our cluster and used for monitoring.
> I can see the graphs listing the load on cpu of diffrent nodes,
> average load, etc..
> I need to get the cpu load at an instant using an api, preferably
> in C.
> Is there an interface available?
>
> Thank you,
> Arun
>
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