Briefly, this error occurs when Elasticsearch is unable to find a parent join field that has been referenced in a query or operation. This could be due to a typo in the field name, or the field may not have been properly configured or mapped. To resolve this issue, you should first verify the field name and ensure it matches exactly with the one in your index mapping. If the field name is correct, check your index mapping to ensure the field is properly configured as a parent join field.
This guide will help you check for common problems that cause the log ” [” + NAME + “] no parent join field [” + parentJoinField + “] configured ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: join, query.
Log Context
Log “[” + NAME + “] no parent join field [” + parentJoinField + “] configured” class name is HasChildQueryBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
String parentJoinField = joiner.parentJoinField(type);
if (context.isFieldMapped(parentJoinField) == false) {
if (ignoreUnmapped) {
return new MatchNoDocsQuery();
}
throw new QueryShardException(context; "[" + NAME + "] no parent join field [" + parentJoinField + "] configured");
} Query parentFilter = joiner.parentFilter(type);
Query childFilter = joiner.filter(type);
Query filteredQuery = Queries.filtered(query.toQuery(context); childFilter);
