[SOLR-10963] Sample model json format for MultipleAdditiveTreesModel is incorrect

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.4, 6.4.1, 6.4.2, 6.5, 6.5.1, 6.6
• Fix Version/s: 6.7, 7.0
• Component/s: contrib - LTR
• Security Level: Public (Default Security Level. Issues are Public)
• Assignee: Christine Poerschke
• Reporter: Stefan Langenmaier
• Created: 27/Jun/17 11:50
• Updated: 28/Jul/17 16:45
• Resolved: 27/Jun/17 12:44

Description

When I try to use the example json file in the javadoc of MultipleAdditiveTreesModel.java I receive the following error:

org.apache.solr.ltr.model.ModelException: Model type does not exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel

The sample model from the documentation is working. The difference seems to be the quoted numbers. I can confirm that once quoted I no longer have the problem and the setter methods all expect Strings.

It's a little bit confusing as this error message does not really pin down the root of the problem.

Issue Links

• is related to: SOLR-8542 Integrate Learning to Rank into Solr
• links to: GitHub Pull Request #214