Failed to verify index – How to solve this Elasticsearch error

Opster Team

March-22, 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.

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This guide will help you check for common problems that cause the log ” Failed to verify index ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, metadata, index.

Log Context

Log “Failed to verify index”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

// version; so we need to verify its compatibility.
 newIndexMetadata = indexMetadataVerifier.verifyIndexMetadata(newIndexMetadata; minIndexCompatibilityVersion);
 try {
 indicesService.verifyIndexMetadata(newIndexMetadata; newIndexMetadata);
 } catch (Exception e) {
 throw new ElasticsearchException("Failed to verify index " + index; e);
 metadata.put(newIndexMetadata; true);
 // Always removes index closed blocks (note: this can fail on-going close index actions)


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