Can’t round a histogram – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

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.

This guide will help you check for common problems that cause the log ” can’t round a histogram ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin and aggregations.


Log Context

Log “can’t round a [histogram]”classname  is HistogramValuesSource.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

public abstract HistogramValues getHistogramValues(LeafReaderContext context) throws IOException; 
 @Override
 public Function roundingPreparer(IndexReader reader) throws IOException {
 throw new AggregationExecutionException("can't round a [histogram]");
 } 
 public static class Fielddata extends Histogram { 
 protected final IndexHistogramFieldData indexFieldData;

 

See how you can use AutoOps to resolve issues


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