Failed to restore snapshot ” + snapshotId + ” – How to solve this Elasticsearch error

Opster Team

March-22, 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 ” failed to restore snapshot ” + snapshotId + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repositories, restore, snapshot, blobstore.

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 “failed to restore snapshot [” + snapshotId + “]”classname  is BlobStoreRepository.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

RecoveryState recoveryState;
 ActionListener listener
 ) {
 final ShardId shardId = store.shardId();
 final ActionListener restoreListener = listener.delegateResponse(
 (l; e) -> l.onFailure(new IndexShardRestoreFailedException(shardId; "failed to restore snapshot [" + snapshotId + "]"; e))
 );
 final Executor executor = threadPool.executor(ThreadPool.Names.SNAPSHOT);
 final BlobContainer container = shardContainer(indexId; snapshotShardId);
 synchronized (ongoingRestores) {
 if (store.isClosing()) {

 

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