Expected ” + XContentParser.Token.START_OBJECT + ” in – How to solve this Elasticsearch error

Expected ” + XContentParser.Token.START_OBJECT + ” in – 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 ” Expected ” + XContentParser.Token.START_OBJECT + ” in ” 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: parser and search.

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”Expected [” + XContentParser.Token.START_OBJECT + “] in [“classname  is SearchSourceBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
  this.ignoreFailure = ignoreFailure;
  this.fieldName = scriptFieldName;
  this.script = script;
  } else {
  throw new ParsingException(parser.getTokenLocation(); "Expected [" + XContentParser.Token.START_OBJECT + "] in ["
  + parser.currentName() + "] but found [" + token + "]"; parser.getTokenLocation());
  }
  }
 
  public String fieldName() {

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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