I am facing the same problem in my 4.17.2 version. We are manually clearing
the stats table to  make the instance list page load faster :(


Joan

On Mon, 26 Feb, 2024, 22:24 Andrei Mikhailovsky, <and...@arhont.com.invalid>
wrote:

> Hello everyone,
>
> My setup: ACS 4.18.1.0 on Ubuntu 20.04.6. Two management servers and mysql
> active-active replication.
>
>
> I seem to have a very slow response on viewing vms. It takes about 20
> seconds for the vm data to show when I click on any vm under Compute >
> Instances. When I click on various vm tabs (like NICs, Disks, Details, etc)
> the only tab that takes about 15-20 seconds to refresh is the Metrics tab.
> When the spinner stops I get the following message: "No data to show for
> the selected period." Also this information is shown in red colour: The
> Control Plane Status of this instance is Offline. Some actions on this
> instance will fail, if so please wait a while and retry. When I click on
> the 12 or 24 hours tab it takes a bit of time, but it does show the tables
> and the message in red colour is not shown.
> On mysql server I see the mysql process is using over 100% cpu (with 0%
> iowait) while ACS tries to retrieve the Metrics data. Also, the
> cloudstack-management server cpu usage goes to 200-400%.
>
>
> I've tried all the obvious (restarting management servers, stopping one of
> the management servers, restarting host servers).
>
> Does anyone know what is the issue? why does it take so long to retrieve
> the vm data and metrics? I don't remember having this problem before 4.18.
>
> Many thanks for any pointers.
>
> cheers
>
> Andrei
>
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