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From David Unzue Moriones <>
Subject Format of solr's graphml output
Date Tue, 20 Mar 2018 13:59:52 GMT

GraphML output for Solr graph traversals was introduced in version 6.1 (

However, the output is missing some required information as described by the GraphML specification,
aka GraphML Primer (

Specifically the attributes are missing the corresponding declarations using the <key>
element, as described in

Solr's output includes the GraphML-Attribute values, defined using the <data> elements
inside nodes and links, but is missing the corresponding declaration of the attributes as
<key> elements (including id, name and type) that should precede the graph definition.

This is how it should look like:

And this is how it currently looks like (note the missing <key> elements):

Is this a know issue? Are there any plans already to fix this or is anyone working on it?

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