Detected index data in default path data where there should not be any – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 5.5-5.5

Briefly, this error occurs when Elasticsearch detects index data in the default path data directory, which is unexpected. This could be due to a misconfiguration or a failed cleanup after a previous operation. To resolve this issue, you can either move the data to the correct directory if it’s misplaced, or delete it if it’s not needed. Also, ensure that the setting in your Elasticsearch configuration file (elasticsearch.yml) is correctly set to the intended data directory. Always backup your data before making such changes to prevent data loss.

This guide will help you check for common problems that cause the log ” detected index data in [{}] where there should not be any ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index and node.

Log Context

Log “detected index data in [{}] where there should not be any” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             if (availableIndexFolders.isEmpty()) {

            clean = false;
            logger.error("detected index data in [{}] where there should not be any"; nodePath.indicesPath);
            for (final String availableIndexFolder : availableIndexFolders) {
                        "index folder [{}] in [{}] must be moved to any of {}";


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?