Field fieldName found and unknown shape – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-6.8

Briefly, this error occurs when Elasticsearch encounters a field with an unknown or unsupported shape type. This usually happens when you’re working with geo_shape fields and the shape type defined in your document doesn’t match any of the recognized shapes. To resolve this issue, you can either change the shape type in your document to a recognized one (like ‘point’, ‘linestring’, ‘polygon’, etc.) or remove the field if it’s not necessary. Also, ensure that the shape data is correctly formatted and adheres to the geoJSON standard.

This guide will help you check for common problems that cause the log ” Field [” + fieldName + “] found and unknown shape ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, query.

Log Context

Log “Field [” + fieldName + “] found and unknown shape” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 return LatLonShape.newBoxQuery(fieldName; relation.getLuceneRelation(); pt[1]; pt[1]; pt[0]; pt[0]);
 } else if (queryShape instanceof Object[]) {
 geoQuery = createGeometryCollectionQuery(context; (Object[]) queryShape);
 } else {
 throw new QueryShardException(context; "Field [" + fieldName + "] found and unknown shape");
 return geoQuery;
 }  private Query createGeometryCollectionQuery(QueryShardContext context; Object... shapes) {