Property value of field name can t be null – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.7-7.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when a field in Elasticsearch is assigned a null value, which is not allowed. Elasticsearch requires all fields to have a value. To resolve this issue, you can either assign a default value to the field when it’s null or ensure that the field always has a value before indexing. Alternatively, you can use the “ignore_malformed” option to ignore such errors, but this might lead to data loss or incorrect data in your index.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” Property [value] of field [” + name + “] can’t be [null]. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

 
 
plugins
 
 
 
 

Log Context

Log “Property [value] of field [” + name + “] can’t be [null].” class name is ConstantKeywordFieldMapper.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 public Mapper.Builder parse(String name; Map node; ParserContext parserContext) throws MapperParsingException {
 Object value = null;
 if (node.containsKey("value")) {
 value = node.remove("value");
 if (value == null) {
 throw new MapperParsingException("Property [value] of field [" + name + "] can't be [null].");
 }
 if (value instanceof Number == false && value instanceof CharSequence == false) {
 throw new MapperParsingException("Property [value] of field [" + name +
 "] must be a number or a string; but got [" + value + "]");
 }

 

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?

Get expert answers on Elasticsearch/OpenSearch

Try OpsGPT Now

Related Articles

Back to all articles