+ NAME + no relation found for child ” + type + ” – Elasticsearch Error How To Solve Related Issues



+ NAME + no relation found for child ” + type + ” – 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 ” + NAME + no relation found for child ” + type + “” 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: join, query.


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”[” + NAME + “] no relation found for child [” + type + “]”classname  is ParentIdQueryBuilder.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final ParentIdFieldMapper childMapper = joinFieldMapper.getParentIdFieldMapper(type; false);
  if (childMapper == null) {
  if (ignoreUnmapped) {
  return new MatchNoDocsQuery();
  } else {
  throw new QueryShardException(context; "[" + NAME + "] no relation found for child [" + type + "]");
  }
  }
  return new BooleanQuery.Builder()
  .add(childMapper.fieldType().termQuery(id; context); BooleanClause.Occur.MUST)
  // Need to take child type into account; otherwise a child doc of different type with the same id could match

 

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 Parent/Child relationships in spring-data-elastic-search -views 9,061 ,score 4

Having trouble creating Parent-Child Relationship in ElasticSearch 6 -views   4,304,score 4

 

 

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