Error parsing field – How to solve this Elasticsearch error

Error parsing field – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” error parsing field ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: index.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

Log”error parsing field [“classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

includeTo = true;
  if (parser.currentToken() != XContentParser.Token.VALUE_NULL) {
  to = rangeType.parseTo(fieldType; parser; coerce.value(); includeTo);
  } else {
  throw new MapperParsingException("error parsing field [" +
  name() + "]; with unknown parameter [" + fieldName + "]");
  range = new Range(rangeType; from; to; includeFrom; includeTo);


Run the Check-Up to get a customized report like this:

Analyze your cluster