and must be valid float values – How to solve this Elasticsearch error

and must be valid float values – 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 ” and must be valid float values ” 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: plugin.

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”[{}] and [{}] must be valid float values”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

throw new ElasticsearchParseException("token [{}] not allowed"; subParser.currentToken());
  if (numberFormatException != null) {
  throw new ElasticsearchParseException("[{}] and [{}] must be valid float values"; numberFormatException;
  } else if (Float.isNaN(x)) {
  throw new ElasticsearchParseException("field [{}] missing"; X_FIELD.getPreferredName());
  } else if (Float.isNaN(y)) {


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

Analyze your cluster