topic Re: Does network zone change require a code module restart? in Dynatrace Managed Q&A

Does network zone change require a code module restart?

pahofmann — Wed, 23 Nov 2022 10:07:14 GMT

When changing network zones, will code modules get the new configuration on the fly, or is a restart required for the monitored applications?

The Documentation for Network Zones states: Restart OneAgent monitored applications, so that they pick up the new instrumentation.

The Documentation for Remote Configuration Management states: Restarting the injected processes isn't necessary when changing the network zone assignment.

Re: Does network zone change require a code module restart?

ChadTurner — Tue, 10 Jan 2023 15:40:02 GMT

I was under the impression that it was just the Oneagent that needed to be recycled since it contains the data for the communication routes with network Zones. Id love some clarity from Dynatrace.

Re: Does network zone change require a code module restart?

pahofmann — Tue, 10 Jan 2023 15:51:25 GMT

The code modules connect directly to the ag/cluster though, not to the OneAgent first.

Re: Does network zone change require a code module restart?

bradley_danyo — Tue, 10 Jan 2023 17:10:13 GMT

You will need a OneAgent restart when changing network zones

https://www.dynatrace.com/support/help/shortlink/network-zones-migration-deploy

Re: Does network zone change require a code module restart?

bradley_danyo — Tue, 10 Jan 2023 17:16:06 GMT

You don't need to do any process restart but you will need to restart OneAgent service for changes to take effect. Generally speaking, it shouldn't be necessary to restart application after starting OneAgent service.

Re: Does network zone change require a code module restart?

pahofmann — Tue, 10 Jan 2023 17:16:31 GMT

That is the same documentation I linked above, the second documentation link says something else though, thus the questions 😉

Re: Does network zone change require a code module restart?

bradley_danyo — Tue, 10 Jan 2023 17:23:02 GMT

Hi,

Yes, please see my below comment

Thanks

Re: Does network zone change require a code module restart?

jegron — Tue, 10 Jan 2023 18:16:21 GMT

Regarding HostGroup it is apply - from a GUI point of view - to host and process without an application restart. But in documentation it is clearly mentioned that OA service AND all the monitored services restart is needed (https://www.dynatrace.com/support/help/setup-and-configuration/dynatrace-oneagent/oneagent-configuration-via-command-line-interface#host-groups).

Maybe Dynatrace team could clarify documentation and this GUI Remote Configuration Management message (same for HostGroup and Network Zone) and explain why an application restart could be needed :

Re: Does network zone change require a code module restart?

jeroen_hautekee — Tue, 28 Apr 2026 15:06:53 GMT

From my experience, the restart is required to load the new settings:
- hostgroups: this changes processgroup and serviceids -- as long as the process is not restarted, context for observability metrics will not be aligned with the new topology.
- networkZones (fullstack): codemodules operate independently from the OneAgent OS monitoring process. As long as the new networkzone config isn't reloaded, the code module might send out its signals along a sub-optimal path.