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

Can’t round a BYTES – 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 BYTES” 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”can’t round a [BYTES]”classname  is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

return org.elasticsearch.index.fielddata.FieldData.docsWithValue(bytes);
  public final Function roundingPreparer(IndexReader reader) throws IOException {
  throw new AggregationExecutionException("can't round a [BYTES]");
  public abstract static class WithOrdinals extends Bytes {
  public static final WithOrdinals EMPTY = new WithOrdinals() {


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 Python CSV error: line contains NULL byte -views 125,778 ,score 101

Run SQL statement – Logstash – Discuss the Elastic Stack  



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