Io error while building empty agg – How to solve this Elasticsearch error

Average Read Time

2 Mins

Io error while building empty agg – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” io error while building empty agg ” to appear. To understand the issues related to this log, read the explanation below about the following 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 to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “io error while building empty agg”classname  is AdaptingAggregator.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

public final InternalAggregation buildEmptyAggregation() {
 try {
 return adapt(delegate.buildEmptyAggregation());
 } catch (IOException e) {
 // We don't expect this to happen; but computers are funny.
 throw new AggregationExecutionException("io error while building empty agg"; e);
 }
 } 
 @Override
 public final Aggregator[] subAggregators() {

 

Watch a demo of the Check-Up:

Analyze your cluster