Failed to delete old index-N blobs during finalization – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.4-7.13

Briefly, this error occurs when Elasticsearch tries to delete old index blobs during the finalization process but fails. This could be due to insufficient permissions, disk space issues, or network connectivity problems. To resolve this, you can try the following: 1) Check and adjust the permissions of the Elasticsearch directory. 2) Free up disk space or increase the disk capacity. 3) Check the network connectivity and ensure Elasticsearch can connect to the required network resources. 4) Restart the Elasticsearch service.

This guide will help you check for common problems that cause the log ” [{}][{}] failed to delete old index-N blobs during finalization ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: delete, repositories, blobstore.

Log Context

Log “[{}][{}] failed to delete old index-N blobs during finalization” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                                        + INDEX_SHARD_SNAPSHOTS_FORMAT.blobName(indexGeneration) + "]"; e);
                    try {
                        deleteFromContainer(shardContainer; blobsToDelete);
                    } catch (IOException e) {
                        logger.warn(() -> new ParameterizedMessage("[{}][{}] failed to delete old index-N blobs during finalization";
                                snapshotId; shardId); e);


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