Failed to finalize snapshot – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch fails to complete the snapshot process due to issues like insufficient disk space, network connectivity problems, or file system permissions. To resolve this, ensure there’s enough disk space and the network connection is stable. Check the file system permissions to ensure OpenSearch has access. Also, verify the snapshot repository’s configuration and health. If the error persists, consider increasing the logging level to TRACE for more detailed error information.

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

Log Context

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

                new SnapshotException(snapshot; "Failed to update cluster state during snapshot finalization"; e)
        } else {
            logger.warn(() -> new ParameterizedMessage("[{}] failed to finalize snapshot"; snapshot); e);
            removeFailedSnapshotFromClusterState(snapshot; e; repositoryData; null);



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