I have checked that this is not related to scaling.
Load metrics are collected by a separate process (stats-poller), which is
affected as described above.
On the other hand, scaling is handled by the Scalr::Scaling::Sensors PHP
package, which is affected in a similar way. Some of the sensors include
code similar to:
$this->snmpClient->connect($DBServer->remoteIp, $port ? $port : 161,
$dbFarm->Hash, null, null, false);
This seems to be using only the remoteIp of the machine.
For the record, I'm using:
if ($DBServer->remoteIp == null) {
$this->snmpClient->connect($DBServer->localIp,
$port ? $port : 161, $dbFarm->Hash, null, null, false);
} else {
$this->snmpClient->connect($DBServer->remoteIp,
$port ? $port : 161, $dbFarm->Hash, null, null, false);
}
This works for me because my Scalr instance can access the VPC non-public
hosts directly.
I guess this shall use the proxying mechanism provided by the VPC role.
Best regards.
El sábado, 24 de agosto de 2013 21:24:46 UTC+2, José Juan Montes escribió:
>
> Hi!
>
> I have installed Scalr 4.4 from master a few days ago, and after initial
> setup I am now running the python stats-poller process.
>
> In Scalr interface "Farm Monitoring" I can now see graphics for many of
> the hosts. However, I cannot see graphics for the hosts which have no
> external IP address.
>
> Digging into scalr-poller code I can see the following query being done:
>
> servers = session.query(db.servers.server_id, db.servers.farm_id,
> db.servers.farm_roleid,
> db.servers.index, db.servers.remote_ip).filter(and_(
> db.servers.client_id.in_(clients),
> db.servers.status=='Running',
> db.servers.remote_ip!='None')).all()
>
>
> This seems to be explicitly excluding servers with no remote IP.
>
> In my case, however, these servers run within a VPC and they are
> accessible by Scalr through their internal addresses in any case.
>
> I am also fearing that this may prevent CPU-Load based scaling from
> working... can anyone tell if scaling up is done based on the RRD data from
> the stats poller?
>
> Is there a solution to make farm monitoring work for all hosts?
>
> Thanks!
>
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