Geohash must be a string – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.2

Briefly, this error occurs when the geohash value provided to Elasticsearch is not in the correct string format. Geohash is a system of encoding geographic coordinates into a short string of letters and digits. Elasticsearch uses this for geospatial data. To resolve this issue, ensure that the geohash value you’re providing is a string. If you’re using a programming language to send data, make sure the geohash value is properly formatted as a string before sending it to Elasticsearch. Also, check for any possible data type conversion that might be causing the issue.

This guide will help you check for common problems that cause the log ” geohash must be a string ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “geohash must be a string” class name is GeoUtils.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 lon = parseValidDouble(subParser; "longitude");
 } else if (GEOHASH.equals(field)) {
 if (subParser.currentToken() == Token.VALUE_STRING) {
 geohash = subParser.text();
 } else {
 throw new ElasticsearchParseException("geohash must be a string");
 }
 } else if (COORDINATES.equals(field)) {
 if (subParser.currentToken() == Token.START_ARRAY) {
 coordinates = new ArrayList<>();
 while (subParser.nextToken() != Token.END_ARRAY) {

 

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