Registry miss-match – expected MedianAbsoluteDeviationAggregatorSupplier found – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.8-7.9

Briefly, this error occurs when there’s a mismatch between the expected and found aggregator in Elasticsearch. This could be due to a version mismatch or incorrect configuration. To resolve this, ensure that all nodes in your cluster are running the same version of Elasticsearch. Also, check your configuration files for any inconsistencies. If the problem persists, consider reindexing your data.

This guide will help you check for common problems that cause the log ” Registry miss-match – expected MedianAbsoluteDeviationAggregatorSupplier; found [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search, aggregations.

Log Context

Log “Registry miss-match – expected MedianAbsoluteDeviationAggregatorSupplier; found [” class name is MedianAbsoluteDeviationAggregatorFactory.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 Map metadata) throws IOException {
 AggregatorSupplier aggregatorSupplier = queryShardContext.getValuesSourceRegistry().getAggregator(config;
 MedianAbsoluteDeviationAggregationBuilder.NAME);  if (aggregatorSupplier instanceof MedianAbsoluteDeviationAggregatorSupplier == false) {
 throw new AggregationExecutionException("Registry miss-match - expected MedianAbsoluteDeviationAggregatorSupplier; found [" +
 aggregatorSupplier.getClass().toString() + "]");
 }
 return ((MedianAbsoluteDeviationAggregatorSupplier) aggregatorSupplier).build(name; config.getValuesSource(); config.format();
 searchContext; parent; metadata; compression);
 }

 

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