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From Özhan Rüzgar Karaman <>
Subject Re: Calculating vm network usage
Date Thu, 28 Apr 2016 14:00:33 GMT
Hi Somesh;
We made some tests with usage db and usage db responds usage in hours, are
there any way to get usage in total read_kbs and write_kbs? Do you have any

Also alternative solution is integrating ACS with Graphite solution, but we
made some tests to compare ACS listvirtualmachines api output with
Graphite's network read/write output and we noticed that their output could
change in some point but we did not aware that when you restart management
server, CloudStack's vm statistics resets :)

So are there any people on list who are using Graphite successfully to
calculate vm network values??


On Thu, Apr 28, 2016 at 4:32 PM, Somesh Naidu <>

> VM statistics are different from usage. These are runtime information
> stored in objects and never persisted. So yes this is the intended behavior.
> On the other hand, network usage/statistics are processed by ACS usage
> server and they are persisted in the DB (I forget the table names) so you
> should be able to work with those.
> Regards,
> Somesh
> -----Original Message-----
> From: Özhan Rüzgar Karaman []
> Sent: Thursday, April 28, 2016 9:11 AM
> To:
> Subject: Calculating vm network usage
> Hi;
> We plan to monthly calculate vm network usage on ACS 4.8, normally we plan
> to use CloudStack vm statistics, via api(listvirtualmachines) but today we
> realised that when you restart CloudStack management server, the current
> values are reset, so you loose all the values before management server
> restart.
> So is this behaviour normal that when you restart management server you
> loose all the values there. So i like to understand if this a bug or if
> this is a normal behaviour of ACS. My ACS also has usage server working
> over it.
> Thanks for all replies
> Özhan

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