Hi all,
I have several clusters added to proxmox data manager and none except the largest have a problem displaying graphs and data. All clusters are on the same version Proxmox Envinronmnet 8.4.1. Unfortunately there is some issue in PDM and what I see in metric-collection-state.json is only error code 596.
Logs from service:
I have tried to create separate token to get metrics to PDM from this cluster but all options has failed. I have no problem with any other cluster on the same version of proxmox environment. Does anyone know what could be causing it?

I have several clusters added to proxmox data manager and none except the largest have a problem displaying graphs and data. All clusters are on the same version Proxmox Envinronmnet 8.4.1. Unfortunately there is some issue in PDM and what I see in metric-collection-state.json is only error code 596.
cat /var/lib/proxmox-datacenter-manager/metric-collection-state.json{ "remote-status": { "alfa-cluster": { "most-recent-datapoint": 0, "last-collection": null, "error": "api error (status = 596: )" },Logs from service:
systemctl status proxmox-datacenter-api.service
Code:
● proxmox-datacenter-api.service - Proxmox Datacenter Manager API daemon
Loaded: loaded (/usr/lib/systemd/system/proxmox-datacenter-api.service; enabled; preset: enabled)
Active: active (running) since Wed 2025-09-17 10:29:36 CEST; 30min ago
Invocation: 56a7f1535141495baf7a2533a3b8113a
Main PID: 20021 (proxmox-datacen)
Tasks: 24 (limit: 4618)
Memory: 420.1M (peak: 422.1M)
CPU: 2min 17.450s
CGroup: /system.slice/proxmox-datacenter-api.service
└─20021 /usr/libexec/proxmox/proxmox-datacenter-api
Sep 17 10:39:52 pdm-testing-01 proxmox-datacenter-api[20021]: coud not fetch metrics from 'alfa-ch13': api error (status = 596: )
Sep 17 10:40:31 pdm-testing-01 proxmox-datacenter-api[20021]: coud not fetch metrics from 'alfa-ch13': api error (status = 596: )
Sep 17 10:50:32 pdm-testing-01 proxmox-datacenter-api[20021]: coud not fetch metrics from 'alfa-ch13': api error (status = 596: )
Sep 17 10:56:22 pdm-testing-01 proxmox-datacenter-api[20021]: coud not fetch metrics from 'alfa-ch13': api error (status = 596: )
Sep 17 10:57:27 pdm-testing-01 proxmox-datacenter-api[20021]: coud not fetch metrics from 'alfa-ch13': api error (status = 596: )
I have tried to create separate token to get metrics to PDM from this cluster but all options has failed. I have no problem with any other cluster on the same version of proxmox environment. Does anyone know what could be causing it?
