Briefly, this error occurs when Elasticsearch tries to create a LineString type of GeoShape but the number of points provided is less than two. A LineString requires at least two points to form a line. To resolve this issue, ensure that you provide at least two points when creating a LineString. If you have only one point, consider using a Point type of GeoShape instead.
This guide will help you check for common problems that cause the log ” invalid number of points in LineString (found [{}] – must be >= 2) ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “invalid number of points in LineString (found [{}] – must be >= 2)” class name is GeoShapeType.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
} @Override CoordinateNode validate(CoordinateNode coordinates; boolean coerce) { if (coordinates.children.size() < 2) { throw new ElasticsearchParseException("invalid number of points in LineString (found [{}] - must be >= 2)"; coordinates.children.size()); } return coordinates; } };