Failed to parse rules expression. field is not recognised in object – Elasticsearch Error How To Solve Related Issues



Failed to parse rules expression. field is not recognised in object – 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 “failed to parse rules expression. field is not recognised in object” 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, rest-high-level, client.


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”failed to parse rules expression. field [{}] is not recognised in object [{}]”classname  is RoleMapperExpressionParser.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

} else if (FIELD.match(field; parser.getDeprecationHandler())) {
  return parseFieldExpression(parser);
  } else if (CompositeType.EXCEPT.getParseField().match(field; parser.getDeprecationHandler())) {
  return parseExceptExpression(parser);
  } else {
  throw new ElasticsearchParseException("failed to parse rules expression. field [{}] is not recognised in object [{}]"; field;
  objectName);
  }
  }
 
  private RoleMapperExpression parseFieldExpression(XContentParser parser) throws IOException {

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 Input string was not in a correct format -views 570,265 ,score 75

Unexpected character encountered while parsing value -views   404,452,score 109



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