” + AUTO_CREATE_INDEX_SETTING.getKey() + ” is false – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

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This guide will help you check for common problems that cause the log ” ” + AUTO_CREATE_INDEX_SETTING.getKey() + ” is false ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “[” + AUTO_CREATE_INDEX_SETTING.getKey() + “] is [false]”classname  is AutoCreateIndex.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 // One volatile read; so that all checks are done against the same instance:
 final AutoCreate autoCreate = this.autoCreate;
 if (autoCreate.autoCreateIndex == false) {
 throw new IndexNotFoundException("[" + AUTO_CREATE_INDEX_SETTING.getKey() + "] is [false]"; index);
 // matches not set; default value of "true"
 if (autoCreate.expressions.isEmpty()) {
 return true;


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