Failed to delete snapshot for retention – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.5-8.3

Briefly, this error occurs when Elasticsearch is unable to delete old snapshots due to issues like insufficient permissions, incorrect snapshot name, or connectivity problems with the snapshot repository. To resolve this, you can check and correct the snapshot name, ensure the Elasticsearch process has the necessary permissions to delete snapshots, and verify the connectivity and accessibility of the snapshot repository. Also, ensure that the snapshot is not currently in use or being created, as this can prevent deletion.

This guide will help you check for common problems that cause the log ” [{}] failed to delete snapshot [{}] for retention ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: snapshot, plugin, delete.

Log Context

Log “[{}] failed to delete snapshot [{}] for retention” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            .execute(ActionListener.wrap(acknowledgedResponse -> {
            }; e -> {
                try {
                    logger.warn(new ParameterizedMessage("[{}] failed to delete snapshot [{}] for retention"; repo; snapshot); e);
                } finally {