**Build scan:**
https://gradle-enterprise.elastic.co/s/duuips4sk3qpe/tests/:x-pack:plugin:async-search:internalClusterTest/org.elasticsearch.xpack.search.CrossClusterAsyncSearchIT/testCancelViaTasksAPI
**Reproduction line:**
```
./gradlew ':x-pack:plugin:async-search:internalClusterTest' --tests "org.elasticsearch.xpack.search.CrossClusterAsyncSearchIT.testCancelViaTasksAPI" -Dtests.seed=DCA233DF8C8AAFF8 -Dtests.locale=en-ZA -Dtests.timezone=Pacific/Niue -Druntime.java=21
```

**Applicable branches:**
main

**Reproduces locally?:**
Yes

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.xpack.search.CrossClusterAsyncSearchIT&tests.test=testCancelViaTasksAPI
**Failure excerpt:**
```
java.lang.AssertionError: 
Expected: <0>
     but: was <1>

  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.search.CrossClusterAsyncSearchIT.testCancelViaTasksAPI(CrossClusterAsyncSearchIT.java:1332)
  at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
  at java.lang.reflect.Method.invoke(Method.java:580)
  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:1583)

```
x-pack/plugin/async-search/src/internalClusterTest/java/org/elasticsearch/xpack/search/CrossClusterAsyncSearchIT.java
int localNumShards = (Integer) testClusterInfo.get("local.num_shards");
        SearchListenerPlugin.blockQueryPhase();
        
        SubmitAsyncSearchRequest request = new SubmitAsyncSearchRequest(localIndex, REMOTE_CLUSTER + ":" + "no_such_index*");
        request.setCcsMinimizeRoundtrips(randomBoolean());
        request.setWaitForCompletionTimeout(TimeValue.timeValueMillis(1));
        request.setKeepOnCompletion(true);
        request.getSearchRequest().source(new SearchSourceBuilder().query(new MatchAllQueryBuilder()).size(10));
        if (randomBoolean()) {
            request.setBatchedReduceSize(randomIntBetween(2, 256));
        }
        boolean dfs = randomBoolean();
        if (dfs) {
            request.getSearchRequest().searchType(SearchType.DFS_QUERY_THEN_FETCH);
        }
        AsyncSearchResponse response = submitAsyncSearch(request);
        assertNotNull(response.getSearchResponse());
        assertTrue(response.isRunning());
        boolean minimizeRoundtrips = TransportSearchAction.shouldMinimizeRoundtrips(request.getSearchRequest());
        assertNotNull(response.getSearchResponse());
        assertTrue(response.isRunning());
        {
            SearchResponse.Clusters clusters = response.getSearchResponse().getClusters();
            assertThat(clusters.getTotal(), equalTo(2));
            assertTrue("search cluster results should be marked as partial", clusters.hasPartialResults());
            SearchResponse.Cluster localClusterSearchInfo = clusters.getCluster(RemoteClusterAware.LOCAL_CLUSTER_GROUP_KEY);
            assertNotNull(localClusterSearchInfo);
            assertThat(localClusterSearchInfo.getStatus(), equalTo(SearchResponse.Cluster.Status.RUNNING));
            SearchResponse.Cluster remoteClusterSearchInfo = clusters.getCluster(REMOTE_CLUSTER);
            assertNotNull(remoteClusterSearchInfo);