Snapshot failed – 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 is unable to create a snapshot due to issues like insufficient disk space, incorrect repository configuration, or network connectivity problems. To resolve this, ensure there’s enough disk space and the repository is correctly configured. Also, check the network connectivity between Elasticsearch and the snapshot repository. If the issue persists, check the Elasticsearch logs for more detailed error messages.

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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, snapshot, indices.

Log Context

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

 final Engine.IndexCommitRef safeCommitRef;
 try {
 safeCommitRef = acquireSafeCommit(shard);
 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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