Could not read search request. unexpected token ” + token + ” – Elasticsearch Error How To Solve Related Issues



Could not read search request. unexpected token ” + token + ” – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch 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 causing many errors 

 

This guide will help you check for common problems that cause the log “could not read search request. unexpected token ” + token + “” 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: request, search, 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 discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”could not read search request. unexpected token [” + token + “]”classname  is WatcherSearchTemplateRequest.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

} else {
  throw new ElasticsearchParseException("could not read search request. unexpected boolean field [" +
  currentFieldName + "]");
  }
  } else {
  throw new ElasticsearchParseException("could not read search request. unexpected token [" + token + "]");
  }
  }
 
  if (searchSource == null) {
  searchSource = BytesArray.EMPTY;

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Uncaught SyntaxError: Unexpected token u in JSON at position 0 -views 94,142 ,score 38

elasticsearch watcher could not parse search input -views   1,296,score 1



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