Unknown property: ” + fieldName + ” – How to solve this Elasticsearch error

Unknown property: ” + fieldName + ” – 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 ” Unknown property: ” + fieldName + ” ” 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: rest and 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”Unknown property: [” + fieldName + “]”classname  is RestGraphAction.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (FIELD_NAME_FIELD.match(fieldName; parser.getDeprecationHandler())) {
  graphRequest.sampleDiversityField(parser.text());
  } else if (MAX_DOCS_PER_VALUE_FIELD.match(fieldName; parser.getDeprecationHandler())) {
  graphRequest.maxDocsPerDiversityValue(parser.intValue());
  } else {
  throw new ElasticsearchParseException("Unknown property: [" + fieldName + "]");
  }
  }
  } else {
  throw new ElasticsearchParseException("Unknown object property: [" + fieldName + "]");
  }

 

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

Analyze your cluster