Failed to load bad snapshot for deletion – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.16-8.2

Briefly, this error occurs when Elasticsearch tries to delete a snapshot but fails because the snapshot is corrupted or missing. This could be due to issues with the underlying storage system or a previous unsuccessful deletion attempt. To resolve this issue, you can try manually deleting the snapshot from the repository. If that doesn’t work, you may need to recreate the repository, ensuring that all snapshots are correctly stored and accessible. Always remember to back up your data before performing these operations to prevent data loss.

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

Log Context

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

            logger.warn(() -> new ParameterizedMessage("[{}] [{}] failed to load bad snapshot for deletion"; jobId; snapshotId); e);
                new ElasticsearchStatusException(
                    "Task to upgrade job [{}] snapshot [{}] got reassigned while running leaving an unknown snapshot state. "
                        + "Unable to cleanup potentially corrupted snapshot";


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