Hi,

Thanks a lot for your suggestions. It decreased the load a lot. I also
followed some suggestions from here:
https://oss.oetiker.ch/rrdtool-trac/wiki/TuningRRD
https://collectd.org/wiki/index.php/Inside_the_RRDtool_plugin

Merry Christmas to you too!

În lun., 24 dec. 2018 la 18:14, Tasslehoff Burrfoot <tassleh...@burrfoot.it>
a scris:

> My suggestion is to check very carefully which plugins are really
> necessary on the clients to reduce the amount of data, for example the
> plugin to check storage devices will generate a lot of data if you use lvm
> (you'll get physical devices + device mapping devices).
> When you made some clean up you can drastically reduce the I/O load
> using CacheTimeout and CacheFlush options of rrdtool plugin on the host
> which receive all the data, this will make your collectd server to flush
> rrd on the storage less frequently and reduce the load on the storage
> devices.
> I hope this will help.
>
> Merry Christmas :)
>
> Tasslehoff Burrfoot
>
>
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