Can’t round a histogram – Elasticsearch Error How To Solve Related Issues



Can’t round a histogram – 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 “can’t round a histogram” 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: plugin, 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”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;

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 How to limit a date histogram aggregation of nested documents to a specific date range? -views 4,482 ,score 4

ElasticSearch aggregate use doc_count for average -views   3,058,score 6



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