**Build scan:**
https://gradle-enterprise.elastic.co/s/gsyy25dcwswoy/tests/:server:internalClusterTest/org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT/testHighWatermarkNotExceeded

**Reproduction line:**
```
./gradlew ':server:internalClusterTest' --tests "org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.testHighWatermarkNotExceeded" -Dtests.seed=B8800AA4C336F43D -Dtests.locale=en -Dtests.timezone=America/Indianapolis -Druntime.java=17
```

**Applicable branches:**
main

**Reproduces locally?:**
No

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT&tests.test=testHighWatermarkNotExceeded

**Failure excerpt:**
```
java.lang.AssertionError: Mismatching shard routings: [[hftwmpechi][3]]
Expected: Expected to contain exactly one value from [<[hftwmpechi][0]>]
     but: was <[[hftwmpechi][3]]>

  at __randomizedtesting.SeedInfo.seed([B8800AA4C336F43D:51A1EB1643F03DD3]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.lambda$assertBusyWithDiskUsageRefresh$10(DiskThresholdDeciderIT.java:300)
  at org.elasticsearch.test.ESTestCase.assertBusy(ESTestCase.java:1154)
  at org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.assertBusyWithDiskUsageRefresh(DiskThresholdDeciderIT.java:293)
  at org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.testHighWatermarkNotExceeded(DiskThresholdDeciderIT.java:104)
  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$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:833)

```
server/src/internalClusterTest/java/org/elasticsearch/cluster/routing/allocation/decider/DiskThresholdDeciderIT.java
Arrays.stream(shardStates)
                        .collect(toMap(it -> it.getShardRouting().shardId(), it -> it.getStats().getStore().sizeInBytes()))
                );
                return new SmallestShards(smallestShardSize, smallestShardIds);
            }
        }
    }
    private record SmallestShards(long size, Set<ShardId> shardIds) {}
    private static ShardId removeIndexUUID(ShardId shardId) {
        return ShardId.fromString(shardId.toString());
    }
    private void refreshDiskUsage() {
        final ClusterInfoService clusterInfoService = internalCluster().getCurrentMasterNodeInstance(ClusterInfoService.class);
        ClusterInfoServiceUtils.refresh(((InternalClusterInfoService) clusterInfoService));
        
        
        if (clusterInfoService.getClusterInfo()
            .getNodeMostAvailableDiskUsages()
            .values()
            .stream()
            .allMatch(e -> e.getFreeBytes() > WATERMARK_BYTES)) {
            assertAcked(client().admin().cluster().prepareReroute());
        }
        assertFalse(
            client().admin()
                .cluster()
                .prepareHealth()
                .setWaitForEvents(Priority.LANGUID)
                .setWaitForNoRelocatingShards(true)
                .setWaitForNoInitializingShards(true)