CannedACL is not valid: ” + cannedACL + ” – 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 Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” cannedACL is not valid: ” + cannedACL + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repositories, repository-s3 and plugins.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “cannedACL is not valid: [” + cannedACL + “]”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (cur.toString().equalsIgnoreCase(cannedACL)) {
 return cur;
 throw new BlobStoreException("cannedACL is not valid: [" + cannedACL + "]");
 static class Stats { 
 final AtomicLong listCount = new AtomicLong();


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