Required alias alias does not exist – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.11-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when an operation is attempted on an alias that does not exist in the Elasticsearch cluster. The alias could have been deleted or not created yet. To resolve this issue, you can either create the missing alias using the ‘Create Alias API’ or modify your operation to use the actual index name instead of the alias. Also, ensure that the alias name is spelled correctly and check for case sensitivity.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” required alias [” + alias + “] does not exist ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: alias, metadata, cluster.

Log Context

Log “required alias [” + alias + “] does not exist” class name is AliasAction.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 @Override
 boolean apply(NewAliasValidator aliasValidator; Metadata.Builder metadata; IndexMetadata index) {
 if (false == index.getAliases().containsKey(alias)) {
 if (mustExist != null && mustExist) {
 throw new ResourceNotFoundException("required alias [" + alias + "] does not exist");
 }
 return false;
 }
 metadata.put(IndexMetadata.builder(index).removeAlias(alias));
 return true;

 

How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?