Property value of field ” + name + ” can’t be null. – How to solve this Elasticsearch error

Property value of field ” + name + ” can’t be null. – 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 ” Property value of field ” + name + ” can’t be null. ” 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”Property [value] of field [” + name + “] can’t be [null].”classname  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 + "]");
  }

Run the Check-Up to get customized recommendations like this:

error

Heavy merges detected in specific nodes

error-img

Description

A large number of small shards can slow down searches and cause cluster instability. Some indices have shards that are too small…

error-img

Recommendations Based on your specific ES deployment you should…

Based on your specific ES deployment you should…

1

X-PUT curl -H [a customized recommendation]

 

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