Sampler aggregation must be used with child aggregations. – Elasticsearch Error How To Solve Related Issues



Sampler aggregation must be used with child aggregations. – 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 “Sampler aggregation must be used with child aggregations.” 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: search, aggregations.


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”Sampler aggregation must be used with child aggregations.”classname  is SamplerAggregator.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 
  @Override
  protected LeafBucketCollector getLeafCollector(LeafReaderContext ctx; LeafBucketCollector sub) throws IOException {
  if (bdd == null) {
  throw new AggregationExecutionException("Sampler aggregation must be used with child aggregations.");
  }
  return bdd.getLeafCollector(ctx);
  }
 
  @Override

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 Significant terms aggregation with parent sampler aggregation -views 204 

Sampler aggregration overhead – Elasticsearch – Discuss the Elastic …  



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