Iteration order of ” + bucketOrds + ” changed without mutating. – Elasticsearch Error How To Solve Related Issues


Iteration order of ” + bucketOrds + ” changed without mutating. – Elasticsearch Error How To Solve Related Issues

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 can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Iteration order of ” + bucketOrds + ” changed without mutating. ” 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 and 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 pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

Log”Iteration order of [” + bucketOrds + “] changed without mutating. [“classname  is BucketsAggregator.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

for (int ordIdx = 0; ordIdx  buckets = new ArrayList((int) bucketOrds.size());
  LongKeyedBucketOrds.BucketOrdsEnum ordsEnum = bucketOrds.ordsEnum(owningBucketOrds[ordIdx]);
  while(ordsEnum.next()) {
  if (bucketOrdsToCollect[b] != ordsEnum.ord()) {
  throw new AggregationExecutionException("Iteration order of [" + bucketOrds + "] changed without mutating. ["
  + ordsEnum.ord() + "] should have been [" + bucketOrdsToCollect[b] + "]");
  }
  buckets.add(bucketBuilder.build(ordsEnum.value(); bucketDocCount(ordsEnum.ord()); subAggregationResults[b++]));
  }
  results[ordIdx] = resultBuilder.build(owningBucketOrds[ordIdx]; buckets);

 

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