No type specified for runtime field fieldName – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.11-8.9

Briefly, this error occurs when a runtime field is defined in Elasticsearch without specifying its type. Runtime fields are a type of schema on read field in Elasticsearch, and they require a type to be specified. To resolve this issue, you should ensure that every runtime field defined in your Elasticsearch index has a type specified. This can be done by adding a “type” field to the runtime field’s definition in the mapping. The type could be ‘keyword’, ‘long’, ‘double’, ‘date’ etc., depending on the data you are storing.

This guide will help you check for common problems that cause the log ” No type specified for runtime field [” + fieldName + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “No type specified for runtime field [” + fieldName + “]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 Map propNode = new HashMap<>(((Map) entry.getValue()));
 Object typeNode = propNode.get("type");
 String type;
 if (typeNode == null) {
 throw new MapperParsingException("No type specified for runtime field [" + fieldName + "]");
 } else {
 type = typeNode.toString();
 Parser typeParser = parserContext.runtimeFieldParser(type);
 if (typeParser == null) {


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?