Snapshot failed – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

Briefly, this error occurs when there was a problem with creating the snapshot. This could be due to a variety of reasons such as disk space issues, network connectivity problems, or issues with the repository where the snapshots are stored. You will need to check the logs and resolve the issue before attempting the snapshot again.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” snapshot failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: recovery, indices and snapshot.

Log Context

Log “snapshot failed”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final Engine.IndexCommitRef safeCommitRef;
 try {
 safeCommitRef = shard.acquireSafeIndexCommit();
 } catch (final Exception e) {
 throw new RecoveryEngineException(shard.shardId(); 1; "snapshot failed"; e);
 // Try and copy enough operations to the recovering peer so that if it is promoted to primary then it has a chance of being
 // able to recover other replicas using operations-based recoveries. If we are not using retention leases then we
 // conservatively copy all available operations. If we are using retention leases then "enough operations" is just the


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