org.elasticsearch.indices.recovery.RecoveryTarget#restoreFileFromSnapshot does not check for cancellation during the download of a file. This means that if a recovery is cancelled mid-way, we will still not release the store/shard-lock until the file is fully downloaded.
For large files or slow downloads this can lead to problems when the shard is (re-)allocated to a node that is still executing such an interrupted recovery.

-> we need to add some checks for cancellation here like we have for other recovery modes.
x-pack/plugin/snapshot-based-recoveries/src/internalClusterTest/java/org/elasticsearch/xpack/snapshotbasedrecoveries/recovery/SnapshotBasedIndexRecoveryIT.java
/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0; you may not use this file except in compliance with the Elastic License
 * 2.0.
 */
package org.elasticsearch.xpack.snapshotbasedrecoveries.recovery;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.lucene.index.IndexCommit;
import org.elasticsearch.action.admin.cluster.node.stats.NodeStats;
import org.elasticsearch.action.admin.cluster.node.stats.NodesStatsResponse;
import org.elasticsearch.action.admin.cluster.snapshots.get.GetSnapshotsResponse;
import org.elasticsearch.action.admin.cluster.snapshots.restore.RestoreSnapshotResponse;
import org.elasticsearch.action.admin.indices.recovery.RecoveryResponse;
import org.elasticsearch.action.admin.indices.stats.CommonStatsFlags;
import org.elasticsearch.action.admin.indices.stats.ShardStats;
import org.elasticsearch.action.index.IndexRequestBuilder;
import org.elasticsearch.action.search.SearchRequestBuilder;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.cluster.ClusterState;