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

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch fails to update a snapshot in the repository. This could be due to insufficient permissions, network connectivity issues, or the repository being read-only. To resolve this, you can check and adjust the repository permissions, ensure the network connection is stable, or change the repository from read-only to read-write. Additionally, ensure that the snapshot you’re trying to update actually exists in the repository.

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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 Elasticsearch concepts: blobstore, repositories, snapshot, repository.

Log Context

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

 // 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 Version repositoryMetaVersion = finalizeSnapshotContext.repositoryMetaVersion();
 final boolean writeShardGens = SnapshotsService.useShardGenerations(repositoryMetaVersion);
 final Consumer onUpdateFailure = e -> finalizeSnapshotContext.onFailure(
 new SnapshotException(metadata.name(); 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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