Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
Take a self-guided product tour to see for yourself (no registration required).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: query, join.
Log Context
Log “[” + NAME + “] no parent join field [” + parentJoinField + “] configured”classname 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);
