Cannot retrieve data because index – How to solve this Elasticsearch error

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 analyzes 2 JSON files to detect many configuration errors.

Briefly, this error occurs when Elasticsearch is unable to retrieve data from an index. This can happen when the index is missing, the permissions for the index are incorrect, or the index is corrupted. To resolve the issue, ensure that the index exists, the permissions are correctly set, and the index is not corrupted.

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 ” cannot retrieve data because index ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index and plugin.


Log Context

Log “cannot retrieve data because index”classname  is ExtractedFieldsDetectorFactory.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

docValueFieldsLimitListener.onResponse(minDocValueFieldsLimit);
 };
 e -> {
 Throwable cause = ExceptionsHelper.unwrapCause(e);
 if (cause instanceof IndexNotFoundException) {
 docValueFieldsLimitListener.onFailure(new ResourceNotFoundException("cannot retrieve data because index "
 + ((IndexNotFoundException) cause).getIndex() + " does not exist"));
 } else {
 docValueFieldsLimitListener.onFailure(e);
 }
 }

 

See how you can use AutoOps to resolve issues


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