Node graph panel

The Node graph can visualize directed graphs or networks. It uses a directed force layout to effectively position the nodes, so it can display complex infrastructure maps, hierarchies, or execution diagrams.

The Node graph panel requires specific shape of the data to be able to display its nodes and edges. This means not every data source or query can be visualized in this panel. If you want to use this as a data source developer see the section about data API.

The Node graph visualization consists of nodes and edges.

• An edge is displayed as a line that connects two nodes. The connection might be a request, an execution, or some other relationship between the two nodes.

Both nodes and edges can have associated metadata or statistics. The data source defines what information and values is shown, so different data sources can show different type of values or not show some values.

Note: Node graph can show only 1,500 nodes. If this limit is crossed a warning will be visible in upper right corner, and some nodes will be hidden. You can expand hidden parts of the graph by clicking on the “Hidden nodes” markers in the graph.

Usually, nodes show two statistical values inside the node and two identifiers just below the node, usually name and type. Nodes can also show another set of values as a color circle around the node, with sections of different color represents different values that should add up to 1.

Edges

Edges can also show statistics when you hover over the edge. Similar to nodes, you can open a context menu with additional details and links by clicking on the edge.

The first data source supporting this visualization is X-Ray data source for it’s Service map feature. For more information, refer to the .

You can pan and zoom in or out the node graph.

You can pan the view by clicking outside any node or edge and dragging your mouse.

Zoom in or out

Use the buttons in the upper left corner or use the mouse wheel, touchpad scroll, together with either Ctrl or Cmd key to zoom in or out.

The number of nodes shown at a given time is limited to maintain a reasonable visualization performance. Nodes that are not currently visible are hidden behind clickable markers that show an approximate number of hidden nodes that are connected by a particular edge. You can click on the marker to expand the graph around that node.

Grid view

To sort the nodes, click on the stats inside the legend. The marker next to the stat name shows which stat is currently used for sorting and sorting direction.

Click on the node and select “Show in Graph layout” option to switch back to graph layout and focus on the selected node, to show it in context of the full graph.

This visualization needs a specific shape of the data to be returned from the data source in order to correctly display it.

Data source needs to return two data frames, one for nodes and one for edges, and you also have to set on both data frames if you want them to be automatically shown in node graph in Explore.

Required fields:

Optional fields:

Edge parameters

Optional fields: