Meta values can’t be null (field ” + name + “) – 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 Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” meta values can’t be null (field ” + name + “) ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “[meta] values can’t be null (field [” + name + “])”classname  is TypeParsers.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (sValue.codePointCount(0; sValue.length()) > 50) {
 throw new MapperParsingException("[meta] values can't be longer than 50 chars; but got [" + value +
 "] for field [" + name + "]");
 }
 } else if (value == null) {
 throw new MapperParsingException("[meta] values can't be null (field [" + name + "])");
 } else {
 throw new MapperParsingException("[meta] values can only be strings; but got " +
 value.getClass().getSimpleName() + "[" + value + "] for field [" + name + "]");
 }
 }

 

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