Failed to update snapshot in repository – How to solve this OpenSearch exception

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch is unable to update the snapshot in the specified repository. This could be due to insufficient permissions, network connectivity issues, or the repository being unavailable or corrupted. To resolve this issue, you can check and adjust the permissions, ensure the network connection is stable, or verify the repository’s availability and integrity. If the repository is corrupted, you may need to recreate it. Always ensure to backup your data before making any changes to avoid data loss.

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This guide will help you check for common problems that cause the log ” failed to update snapshot in repository ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: repositories, blobstore, snapshot, repository.

Log Context

Log “failed to update snapshot in repository” class name is We extracted the following from OpenSearch source code for those seeking an in-depth context :

 // directory if all nodes are at least at version SnapshotsService#SHARD_GEN_IN_REPO_DATA_VERSION
 // If there are older version nodes in the cluster; we don't need to run this cleanup as it will have already happened
 // when writing the index-${N} to each shard directory.
 final boolean writeShardGens = SnapshotsService.useShardGenerations(repositoryMetaVersion);
 final Consumer onUpdateFailure = e -> listener.onFailure(
 new SnapshotException(; snapshotId; "failed to update snapshot in repository"; e)
 );  final Executor executor = threadPool.executor(ThreadPool.Names.SNAPSHOT);  final boolean writeIndexGens = SnapshotsService.useIndexGenerations(repositoryMetaVersion);


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