**Build scan:**
https://gradle-enterprise.elastic.co/s/n2fya3bzklnog/tests/:x-pack:plugin:searchable-snapshots:internalClusterTest/org.elasticsearch.xpack.searchablesnapshots.cache.shared.PartiallyCachedShardAllocationIntegTests/testPartialSearchableSnapshotAllocatedToNodesWithCache

**Reproduction line:**
```
./gradlew ':x-pack:plugin:searchable-snapshots:internalClusterTest' --tests "org.elasticsearch.xpack.searchablesnapshots.cache.shared.PartiallyCachedShardAllocationIntegTests.testPartialSearchableSnapshotAllocatedToNodesWithCache" -Dtests.seed=93FC1C9EB0FD4E2E -Dtests.locale=sr-BA -Dtests.timezone=America/Goose_Bay -Druntime.java=17
```

**Applicable branches:**
8.6

**Reproduces locally?:**
Didn't try

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.xpack.searchablesnapshots.cache.shared.PartiallyCachedShardAllocationIntegTests&tests.test=testPartialSearchableSnapshotAllocatedToNodesWithCache

**Failure excerpt:**
```
java.lang.AssertionError: test leaves persistent cluster metadata behind
Expected: an empty collection
     but: <[cluster.routing.rebalance.enable]>

  at __randomizedtesting.SeedInfo.seed([93FC1C9EB0FD4E2E:CC12EB84740C7CD0]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.elasticsearch.test.ESIntegTestCase.afterInternal(ESIntegTestCase.java:569)
  at org.elasticsearch.test.ESIntegTestCase.cleanUpCluster(ESIntegTestCase.java:2237)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
  at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:568)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:1004)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
  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:833)

```
x-pack/plugin/searchable-snapshots/src/internalClusterTest/java/org/elasticsearch/xpack/searchablesnapshots/cache/shared/PartiallyCachedShardAllocationIntegTests.java
} catch (IndexNotFoundException e) {
                throw new AssertionError("not restored yet", e);
            }
        });
        
        cacheInfoBlockGetter.apply(newNodes.get(1)).onResponse(null);
        
        assertFalse(responseFuture.isDone());
        final ClusterAllocationExplanation explanation = client().admin()
            .cluster()
            .prepareAllocationExplain()
            .setPrimary(true)
            .setIndex(req.mountedIndexName())
            .setShard(0)
            .get()
            .getExplanation();
        assertThat(
            Strings.toString(explanation),
            explanation.getShardAllocationDecision().getAllocateDecision().getAllocationStatus(),
            equalTo(UnassignedInfo.AllocationStatus.FETCHING_SHARD_DATA)
        );
        
        final MockTransportService transportService = (MockTransportService) internalCluster().getInstance(
            TransportService.class,
            newNodes.get(0)
        );
        final Semaphore failurePermits = new Semaphore(between(0, 2));
        transportService.addRequestHandlingBehavior(FrozenCacheInfoNodeAction.NAME, (handler, request, channel, task) -> {
            if (failurePermits.tryAcquire()) {
                channel.sendResponse(new ElasticsearchException("simulated"));