The best thing you can do the reduce the load generated by JFFNMS is
puting the DB in another box.
Since most of the time is spent in locks because of writing to the disk,
or waiting for MySQL.
So, if you put the DB server in another server, your loads will reduce
to less than a half that now, on each server.
I'm still thinking about the Anders patches, to find a way to let the
user choose the way they want their information to be stored.
Tjerk Nan wrote:
>> Satellites are what you think, but they don't really lower the load,
>> because the Master still needs to do the 'backend' part of the polling,
>> only the pollers are distributed.
>> All data is stored in the master. So, it still have around the same load.
>> This is useful in situations where the master can't access the remote
>> network directly, or when you want 2 pollers polling the same host in
>> case some of them die.
>> I expect that in the future the satellite system will case lighter
>> Another option is implementing some patches sent to me by Anders
>> Karlsson that make the RRD Storage and Graphing distributed too, so the
>> master will ask the childs (slaves) for graphs, but the polling is local
>> to the slave.
> Thanks a lot for the info. It's very interesting because of the high
> amount of hosts and interfaces
> that are polled. With the stable version of JFFNMS I can use a seperate
> machine for polling and another
> for the backend processing. I guess it would take some load of the
> backendmachine, althoug I can't estimate if
> it's worth the effort. Can you?
> Does using a dual cpu machine make any sense for JFFNMS?
> I'm not very fond of using an unstable version of JFFNMS. Are those
> patches, made by Anders Karlsson, going to be merged with a stable
> version of JFFNMS in the (near) future?
> Tjerk Nan
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Javier Szyszlican, Project Leader, JFFNMS
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