Expected group separator at offset ; found – Elasticsearch Error How To Solve Related Issues



Expected group separator at offset ; found – 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 “expected group separator at offset ; found” 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, 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”{}expected group separator at offset [{}]; found [{}]”classname  is ExpressionBuilder.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 
  int[] separatorPos = { 8; 13; 18; 23 };
  for (int pos : separatorPos) {
  if (lowerCase.charAt(pos) != '-') {
  throw new ParsingException(source; "{}expected group separator at offset [{}]; found [{}]";
  errorPrefix; pos; string.charAt(pos));
  }
  }
 
  String HEXA = "0123456789abcdef";

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 Base64: java.lang.IllegalArgumentException: Illegal character -views 154,354 ,score 30

regex error – nothing to repeat -views   105,322,score 66



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