Snapshot failed – How to solve this Elasticsearch error

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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 Check-Up which can resolve issues that cause many errors.

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.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

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

final Engine.IndexCommitRef safeCommitRef;
 try {
 safeCommitRef = shard.acquireSafeIndexCommit();
 resources.add(safeCommitRef);
 } 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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