**Build scan:**
https://gradle-enterprise.elastic.co/s/n2ojcb6g667rc/tests/:x-pack:plugin:ilm:qa:multi-node:javaRestTest/org.elasticsearch.xpack.ilm.actions.SearchableSnapshotActionIT/testSearchableSnapshotForceMergesIndexToOneSegment

**Reproduction line:**
`./gradlew ':x-pack:plugin:ilm:qa:multi-node:javaRestTest' --tests "org.elasticsearch.xpack.ilm.actions.SearchableSnapshotActionIT.testSearchableSnapshotForceMergesIndexToOneSegment" -Dtests.seed=CCA33211A11CBDB -Dtests.locale=nb -Dtests.timezone=Atlantic/Jan_Mayen -Druntime.java=17`

**Applicable branches:**
main

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

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.xpack.ilm.actions.SearchableSnapshotActionIT&tests.test=testSearchableSnapshotForceMergesIndexToOneSegment

**Failure excerpt:**
```
java.lang.AssertionError: 
Expected: a value equal to or greater than <1>
     but: <0> was less than <1>

  at __randomizedtesting.SeedInfo.seed([CCA33211A11CBDB:A215FF3A45EEAF90]: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.xpack.ilm.actions.SearchableSnapshotActionIT.testSearchableSnapshotForceMergesIndexToOneSegment(SearchableSnapshotActionIT.java:141)
  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)

```
x-pack/plugin/ilm/qa/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/TimeSeriesRestDriver.java
ensureHealth(index, (request) -> {
            request.addParameter("wait_for_status", "green");
            request.addParameter("wait_for_no_relocating_shards", "true");
        });
    }
    @SuppressWarnings("unchecked")
    public static Integer getNumberOfSegments(RestClient client, String index) throws IOException {
        Response response = client.performRequest(new Request("GET", index + "/_segments"));
        XContentType entityContentType = XContentType.fromMediaType(response.getEntity().getContentType().getValue());
        Map<String, Object> responseEntity = XContentHelper.convertToMap(
            entityContentType.xContent(),
            response.getEntity().getContent(),
            false
        );
        responseEntity = (Map<String, Object>) responseEntity.get("indices");
        responseEntity = (Map<String, Object>) responseEntity.get(index);
        responseEntity = (Map<String, Object>) responseEntity.get("shards");
        List<Map<String, Object>> shards = (List<Map<String, Object>>) responseEntity.get("0");
        return (Integer) shards.get(0).get("num_search_segments");
    }
    public static void updatePolicy(RestClient client, String indexName, String policy) throws IOException {
        Request changePolicyRequest = new Request("PUT", "/" + indexName + "/_settings");
        final StringEntity changePolicyEntity = new StringEntity(
            "{ \"index.lifecycle.name\": \"" + policy + "\" }",
            ContentType.APPLICATION_JSON
        );
        changePolicyRequest.setEntity(changePolicyEntity);
        assertOK(client.performRequest(changePolicyRequest));
    }
    @SuppressWarnings("unchecked")