Stored fields cannot be disabled if source is requested – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when you try to disable the [stored_fields] while requesting for [_source] in Elasticsearch. The [_source] field requires the [stored_fields] to be enabled to function properly. To resolve this issue, you can either enable [stored_fields] or avoid requesting [_source]. Alternatively, you can modify your query to not require [_source] if [stored_fields] is disabled.

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This guide will help you check for common problems that cause the log ” [stored_fields] cannot be disabled if [_source] is requested ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search.

Log Context

Log “[stored_fields] cannot be disabled if [_source] is requested” class name is SearchService.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  if (source.storedFields() != null) {
 if (source.storedFields().fetchFields() == false) {
 if (context.sourceRequested()) {
 throw new SearchException(shardTarget; "[stored_fields] cannot be disabled if [_source] is requested");
 }
 if (context.fetchFieldsContext() != null) {
 throw new SearchException(shardTarget; "[stored_fields] cannot be disabled when using the [fields] option");
 }
 }

 

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