(Not 100% sure who owns threadpools, whether it's core/infra or the distributed team)

**Build scan:**
https://gradle-enterprise.elastic.co/s/6bnqyucslkqwu/tests/:server:test/org.elasticsearch.threadpool.ScalingThreadPoolTests/testScalingThreadPoolConfiguration

**Reproduction line:**
```
./gradlew ':server:test' --tests "org.elasticsearch.threadpool.ScalingThreadPoolTests.testScalingThreadPoolConfiguration" -Dtests.seed=723A4CB306D59946 -Dtests.locale=zh-SG -Dtests.timezone=Asia/Aqtau -Druntime.java=17
```

**Applicable branches:**
main

**Reproduces locally?:**
Yes

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.threadpool.ScalingThreadPoolTests&tests.test=testScalingThreadPoolConfiguration

**Failure excerpt:**
```
java.lang.AssertionError: 
Expected: <10>
     but: was <5>

  at __randomizedtesting.SeedInfo.seed([723A4CB306D59946:5FBC453C30C07715]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.junit.Assert.assertThat(Assert.java:923)
  at org.elasticsearch.threadpool.ScalingThreadPoolTests.lambda$testScalingThreadPoolConfiguration$0(ScalingThreadPoolTests.java:105)
  at org.elasticsearch.threadpool.ScalingThreadPoolTests.runScalingThreadPoolTest(ScalingThreadPoolTests.java:433)
  at org.elasticsearch.threadpool.ScalingThreadPoolTests.testScalingThreadPoolConfiguration(ScalingThreadPoolTests.java:88)
  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: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)

```
server/src/test/java/org/elasticsearch/threadpool/ThreadPoolTests.java
assertThat(
            expectThrows(IllegalArgumentException.class, () -> LATE_TIME_INTERVAL_WARN_THRESHOLD_SETTING.get(settings)).getMessage(),
            equalTo("failed to parse value [-1] for setting [thread_pool.estimated_time_interval.warn_threshold], must be >= [0ms]")
        );
    }
    public void testLateTimeIntervalWarningMuchLongerThanEstimatedTimeIntervalByDefault() {
        assertThat(
            LATE_TIME_INTERVAL_WARN_THRESHOLD_SETTING.get(Settings.EMPTY).getMillis(),
            greaterThan(ESTIMATED_TIME_INTERVAL_SETTING.get(Settings.EMPTY).getMillis() + 4000)
        );
    }
    public void testTimerThreadWarningLogging() throws Exception {
        final Logger threadPoolLogger = LogManager.getLogger(ThreadPool.class);
        final MockLogAppender appender = new MockLogAppender();
        appender.start();
        try {
            Loggers.addAppender(threadPoolLogger, appender);
            appender.addExpectation(
                new MockLogAppender.SeenEventExpectation(
                    "expected warning for absolute clock",
                    ThreadPool.class.getName(),
                    Level.WARN,
                    "timer thread slept for [*] on absolute clock which is above the warn threshold of [100ms]"
                )
            );
            appender.addExpectation(
                new MockLogAppender.SeenEventExpectation(
                    "expected warning for relative clock",
                    ThreadPool.class.getName(),
                    Level.WARN,