Problem with installing the agent - Agent Type "Host" not active/shown

[morskipas]

Hello everyone,
I found this project a few days ago and am very impressed. Thank you very much for your efforts and good work.

I added my first hosts and Docker a few days ago (I think it was v4.32.7) and there were no problems at all, everything was recognized immediately.
Yesterday, I wanted to add a few more hosts/docker (v4.33.1) and noticed that after installing the agent including the Docker option, the host is not always added, but the docker containers are always recognized. In fact, when I go to Settings / Agents, the type of the newly added hosts changes every few seconds, sometimes showing Host & Docker, sometimes only Docker. The Docker is always listed as the type.
What could be the cause? I have currently added about 20 hosts, all of them work fine except for the last 3 or 4 I added. I have a Proxmox environment with about 20 LXC containers and Docker containers contained inside them. All LXCs are the same, Ubuntu 24.04 and Docker 29.1.1. Today I also updated to puls 4.34.0, but even after reinstalling the agent, the result is the same.

Here are two screenshots showing the type changing every few seconds, but only for the newly added hosts.

I would be grateful for any help.

[rcourtman]

Thanks for the report. This looks like a timing issue in how the UI merges host and docker agent data.

When a unified agent reports, it sends separate host and docker reports. Each triggers an independent state broadcast to the UI. The Settings/Agents page merges these two data sources by hostname - if a broadcast arrives where only the docker agent data has been updated (host data not yet in that snapshot), the UI briefly shows just "Docker" type.

I'll work on a fix to stabilize the type display. In the meantime, the actual monitoring should be working correctly - this is primarily a visual flapping issue on the Agents settings page.

[morskipas]

Thanks for the report. This looks like a timing issue in how the UI merges host and docker agent data.

When a unified agent reports, it sends separate host and docker reports. Each triggers an independent state broadcast to the UI. The Settings/Agents page merges these two data sources by hostname - if a broadcast arrives where only the docker agent data has been updated (host data not yet in that snapshot), the UI briefly shows just "Docker" type.

I'll work on a fix to stabilize the type display. In the meantime, the actual monitoring should be working correctly - this is primarily a visual flapping issue on the Agents settings page.

Super ... Thanks a lot!

[rcourtman]

Fixed in commit 6751930.

Root cause: The WebSocket handler was calling setState separately for dockerHosts and hosts. When a unified agent reports both, the UI's allHosts memo recalculates twice - first seeing only updated dockerHosts (showing "Docker"), then seeing both (showing "Host & Docker").

Fix: Batch both updates into a single atomic setState call using produce() when both are present in the same message.

This will be in the next release. Thanks for the report!