**Build scan:**
https://gradle-enterprise.elastic.co/s/w3y6276h3es4g/tests/:x-pack:plugin:searchable-snapshots:internalClusterTest/org.elasticsearch.xpack.searchablesnapshots.recovery.SearchableSnapshotRecoveryStateIntegrationTests/testRecoveryStateRecoveredBytesMatchPhysicalCacheState

**Reproduction line:**
```
./gradlew ':x-pack:plugin:searchable-snapshots:internalClusterTest' --tests "org.elasticsearch.xpack.searchablesnapshots.recovery.SearchableSnapshotRecoveryStateIntegrationTests.testRecoveryStateRecoveredBytesMatchPhysicalCacheState" -Dtests.seed=37CF1F75CEB7D168 -Dtests.locale=el-CY -Dtests.timezone=America/Indiana/Petersburg -Druntime.java=20
```

**Applicable branches:**
8.8

**Reproduces locally?:**
No

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.xpack.searchablesnapshots.recovery.SearchableSnapshotRecoveryStateIntegrationTests&tests.test=testRecoveryStateRecoveredBytesMatchPhysicalCacheState

**Failure excerpt:**
```
java.lang.AssertionError: Physical cache size doesn't match with recovery state data
Expected: <9744L>
     but: was <10768L>

  at __randomizedtesting.SeedInfo.seed([37CF1F75CEB7D168:792DC5E477402C60]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.elasticsearch.xpack.searchablesnapshots.recovery.SearchableSnapshotRecoveryStateIntegrationTests.testRecoveryStateRecoveredBytesMatchPhysicalCacheState(SearchableSnapshotRecoveryStateIntegrationTests.java:106)
  at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
  at java.lang.reflect.Method.invoke(Method.java:578)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:48)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
  at java.lang.Thread.run(Thread.java:1623)

```
x-pack/plugin/searchable-snapshots/src/main/java/org/elasticsearch/xpack/searchablesnapshots/store/SearchableSnapshotDirectory.java
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import static org.elasticsearch.core.Strings.format;
import static org.elasticsearch.core.TimeValue.timeValueNanos;
import static org.elasticsearch.index.IndexModule.INDEX_STORE_TYPE_SETTING;
import static org.elasticsearch.snapshots.SearchableSnapshotsSettings.SEARCHABLE_SNAPSHOT_STORE_TYPE;
import static org.elasticsearch.snapshots.SearchableSnapshotsSettings.SNAPSHOT_PARTIAL_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_BLOB_CACHE_METADATA_FILES_MAX_LENGTH_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_CACHE_ENABLED_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_CACHE_EXCLUDED_FILE_TYPES_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_CACHE_PREWARM_ENABLED_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_INDEX_ID_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_INDEX_NAME_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_REPOSITORY_NAME_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_REPOSITORY_UUID_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_SNAPSHOT_ID_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_SNAPSHOT_NAME_SETTING;
import static org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots.SNAPSHOT_UNCACHED_CHUNK_SIZE_SETTING;
/**
 * Implementation of {@link Directory} that exposes files from a snapshot as a Lucene directory. Because snapshot are immutable this
 * implementation does not allow modification of the directory files and only supports {@link #listAll()}, {@link #fileLength(String)} and
 * {@link #openInput(String, IOContext)} methods.
 *
 * To create a {@link SearchableSnapshotDirectory} both the list of the snapshot files and a {@link BlobContainer} to read these files must
 * be provided. The definition of the snapshot files are provided using a {@link BlobStoreIndexShardSnapshot} object which contains the name
 * of the snapshot and all the files it contains along with their metadata. Because there is no one-to-one relationship between the original
 * shard files and what it stored in the snapshot the {@link BlobStoreIndexShardSnapshot} is used to map a physical file name as expected by
 * Lucene with the one (or the ones) corresponding blob(s) in the snapshot.
 */
public class SearchableSnapshotDirectory extends BaseDirectory {