Failed to wrap searcher – 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.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

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

Log Context

Log “failed to wrap searcher”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final Engine.Searcher newSearcher = wrapSearcher(searcher; fieldUsageTracker.createSession(); readerWrapper);
 assert newSearcher != null;
 success = true;
 return newSearcher;
 } catch (IOException ex) {
 throw new ElasticsearchException("failed to wrap searcher"; ex);
 } finally {
 if (success == false) {
 Releasables.close(success; searcher);


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