# \#nodegraph

**URL:** https://community.grafana.com/tag/nodegraph/333.md

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## [Nodegraph throws exception when nodes and edges datasets are empty](https://community.grafana.com/t/nodegraph-throws-exception-when-nodes-and-edges-datasets-are-empty/161975)

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**Author:** [@nikhithachinthapall1](https://community.grafana.com/u/nikhithachinthapall1)\
**Replies:** 2\
**Last updated:** [April 2, 2026, 8:54pm UTC](https://community.grafana.com/t/nodegraph-throws-exception-when-nodes-and-edges-datasets-are-empty/161975 "2026-04-02T20:54:43Z")

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how to handle Grafana node graph throwing exception when nodes and edge datasets are empty? What Grafana version and what operating system are you using? version 12.2 What are you trying to achieve? Nodegraph vis…

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## [Rename columns in nodes dataframe](https://community.grafana.com/t/rename-columns-in-nodes-dataframe/161638)

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**Author:** [@nikhithachinthapall1](https://community.grafana.com/u/nikhithachinthapall1)\
**Replies:** 6\
**Last updated:** [February 13, 2026, 4:33am UTC](https://community.grafana.com/t/rename-columns-in-nodes-dataframe/161638 "2026-02-13T04:33:30Z")

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I’m using a Node Graph panel with Prometheus (format = table) and my nodes query returns a single nodes dataframe with fields like id, title, and Value #nodes. I want to show an additional value in the node click drawer,…

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## [Release: Mapgl 2.0. Geo + Node graph for network topology](https://community.grafana.com/t/release-mapgl-2-0-geo-node-graph-for-network-topology/161245)

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**Author:** [@vaduga](https://community.grafana.com/u/vaduga)\
**Replies:** 0\
**Last updated:** [January 22, 2026, 3:13pm UTC](https://community.grafana.com/t/release-mapgl-2-0-geo-node-graph-for-network-topology/161245 "2026-01-22T15:13:58Z")

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Hi ! after a long break I‘ve made my network topology visualization plugin 2x more user-friendly and in-line with native Grafana field config and standard behaviors. Major Mapgl 2.0. update in the Grafana catalog featu…