Damien/arista-evpn-vxlan-clab
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Guard VNI tooltip join against transient duplicate series

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Wrap the group_left RHS in max by (device, vlan) so a Prometheus restart
or relabel change (old/new label-set series briefly coexisting in the
staleness window) can't trip PromQL's many-to-many matching error.

Closes #50
This commit is contained in:
Damien Arnodo
2026-07-10 09:51:48 +00:00
parent b03464d0df
commit b726848da0
2 changed files with 8 additions and 2 deletions
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2
configs/grafana/weathermap-dashboard.json
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@@ -100,7 +100,7 @@
},
{
"refId": "D",
"expr": "count by (device, vlan) (network_instances_network_instance_fdb_mac_table_entries_entry_vlan{device=~\"campus-leaf1|campus-leaf2|campus-leaf3|campus-leaf4|dc-leaf1|dc-leaf2|dc-leaf5|dc-leaf6\"})\n* on(device, vlan) group_left(vlan_to_vni_state_vni)\ninterfaces_interface_arista_vxlan_vlan_to_vnis_vlan_to_vni_state_vni{device=~\"campus-leaf1|campus-leaf2|campus-leaf3|campus-leaf4|dc-leaf1|dc-leaf2|dc-leaf5|dc-leaf6\"}",
"expr": "count by (device, vlan) (network_instances_network_instance_fdb_mac_table_entries_entry_vlan{device=~\"campus-leaf1|campus-leaf2|campus-leaf3|campus-leaf4|dc-leaf1|dc-leaf2|dc-leaf5|dc-leaf6\"})\n* on(device, vlan) group_left(vlan_to_vni_state_vni)\nmax by (device, vlan) (interfaces_interface_arista_vxlan_vlan_to_vnis_vlan_to_vni_state_vni{device=~\"campus-leaf1|campus-leaf2|campus-leaf3|campus-leaf4|dc-leaf1|dc-leaf2|dc-leaf5|dc-leaf6\"})",
"legendFormat": "VNI {{device}} {{vlan}}",
"datasource": {
"type": "prometheus",