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[8.x] Improve CrossClusterAsyncQueryStopIT test resiliency (#122219) #122302

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Feb 11, 2025
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[8.x] Improve CrossClusterAsyncQueryStopIT test resiliency (#122219) #122302

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276 changes: 144 additions & 132 deletions ...nalClusterTest/java/org/elasticsearch/xpack/esql/action/CrossClusterAsyncQueryStopIT.java
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Original file line number Diff line number Diff line change
Expand Up @@ -53,65 +53,71 @@ public void testStopQuery() throws Exception {
includeCCSMetadata.v1(),
Map.of("page_size", 1, "data_partitioning", "shard", "task_concurrency", 1)
);
try {
// wait until we know that the query against 'remote-b:blocking' has started
CountingPauseFieldPlugin.startEmitting.await(30, TimeUnit.SECONDS);

// wait until the query of 'cluster-a:logs-*' has finished (it is not blocked since we are not searching the 'blocking' index on
// it)
waitForCluster(client(), REMOTE_CLUSTER_1, asyncExecutionId);
waitForCluster(client(), LOCAL_CLUSTER, asyncExecutionId);

/* at this point:
* the query against cluster-a should be finished
* the query against remote-b should be running (blocked on the PauseFieldPlugin.allowEmitting CountDown)
* the query against the local cluster should be running because it has a STATS clause that needs to wait on remote-b
*/

// run the stop query
AsyncStopRequest stopRequest = new AsyncStopRequest(asyncExecutionId);
ActionFuture<EsqlQueryResponse> stopAction = client().execute(EsqlAsyncStopAction.INSTANCE, stopRequest);
assertBusy(() -> {
List<TaskInfo> tasks = getDriverTasks(client(REMOTE_CLUSTER_2));
List<TaskInfo> reduceTasks = tasks.stream()
.filter(t -> t.description().contains("_LuceneSourceOperator") == false)
.toList();
assertThat(reduceTasks, empty());
});
// allow remoteB query to proceed
CountingPauseFieldPlugin.allowEmitting.countDown();

// Since part of the query has not been stopped, we expect some result to emerge here
try (EsqlQueryResponse asyncResponse = stopAction.actionGet(30, TimeUnit.SECONDS)) {
// Check that we did not process all the fields on remote-b
// Should not be getting more than one page here, and we set page size to 1
assertThat(CountingPauseFieldPlugin.count.get(), lessThanOrEqualTo(1L));
assertThat(asyncResponse.isRunning(), is(false));
assertThat(asyncResponse.columns().size(), equalTo(1));
assertThat(asyncResponse.values().hasNext(), is(true));
Iterator<Object> row = asyncResponse.values().next();
// sum of 0-9 is 45, and sum of 0-9 squared is 285
assertThat(row.next(), equalTo(330L));

// wait until we know that the query against 'remote-b:blocking' has started
CountingPauseFieldPlugin.startEmitting.await(30, TimeUnit.SECONDS);

// wait until the query of 'cluster-a:logs-*' has finished (it is not blocked since we are not searching the 'blocking' index on it)
waitForCluster(client(), REMOTE_CLUSTER_1, asyncExecutionId);
waitForCluster(client(), LOCAL_CLUSTER, asyncExecutionId);

/* at this point:
* the query against cluster-a should be finished
* the query against remote-b should be running (blocked on the PauseFieldPlugin.allowEmitting CountDown)
* the query against the local cluster should be running because it has a STATS clause that needs to wait on remote-b
*/

// run the stop query
AsyncStopRequest stopRequest = new AsyncStopRequest(asyncExecutionId);
ActionFuture<EsqlQueryResponse> stopAction = client().execute(EsqlAsyncStopAction.INSTANCE, stopRequest);
assertBusy(() -> {
List<TaskInfo> tasks = getDriverTasks(client(REMOTE_CLUSTER_2));
List<TaskInfo> reduceTasks = tasks.stream().filter(t -> t.description().contains("_LuceneSourceOperator") == false).toList();
assertThat(reduceTasks, empty());
});
// allow remoteB query to proceed
CountingPauseFieldPlugin.allowEmitting.countDown();

// Since part of the query has not been stopped, we expect some result to emerge here
try (EsqlQueryResponse asyncResponse = stopAction.actionGet(30, TimeUnit.SECONDS)) {
// Check that we did not process all the fields on remote-b
// Should not be getting more than one page here, and we set page size to 1
assertThat(CountingPauseFieldPlugin.count.get(), lessThanOrEqualTo(1L));
assertThat(asyncResponse.isRunning(), is(false));
assertThat(asyncResponse.columns().size(), equalTo(1));
assertThat(asyncResponse.values().hasNext(), is(true));
Iterator<Object> row = asyncResponse.values().next();
// sum of 0-9 is 45, and sum of 0-9 squared is 285
assertThat(row.next(), equalTo(330L));

EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isCrossClusterSearch(), is(true));
long overallTookMillis = executionInfo.overallTook().millis();
assertThat(overallTookMillis, greaterThanOrEqualTo(0L));
assertThat(executionInfo.clusterAliases(), equalTo(Set.of(LOCAL_CLUSTER, REMOTE_CLUSTER_1, REMOTE_CLUSTER_2)));
assertThat(executionInfo.isPartial(), equalTo(true));

EsqlExecutionInfo.Cluster remoteCluster = executionInfo.getCluster(REMOTE_CLUSTER_1);
assertThat(remoteCluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(remoteCluster, remote1NumShards);

EsqlExecutionInfo.Cluster remote2Cluster = executionInfo.getCluster(REMOTE_CLUSTER_2);
assertThat(remote2Cluster.getIndexExpression(), equalTo("blocking"));
assertThat(remote2Cluster.getStatus(), equalTo(EsqlExecutionInfo.Cluster.Status.PARTIAL));

EsqlExecutionInfo.Cluster localCluster = executionInfo.getCluster(LOCAL_CLUSTER);
assertThat(localCluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(localCluster, localNumShards);

assertClusterMetadataInResponse(asyncResponse, responseExpectMeta, 3);
EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isCrossClusterSearch(), is(true));
long overallTookMillis = executionInfo.overallTook().millis();
assertThat(overallTookMillis, greaterThanOrEqualTo(0L));
assertThat(executionInfo.clusterAliases(), equalTo(Set.of(LOCAL_CLUSTER, REMOTE_CLUSTER_1, REMOTE_CLUSTER_2)));
assertThat(executionInfo.isPartial(), equalTo(true));

EsqlExecutionInfo.Cluster remoteCluster = executionInfo.getCluster(REMOTE_CLUSTER_1);
assertThat(remoteCluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(remoteCluster, remote1NumShards);

EsqlExecutionInfo.Cluster remote2Cluster = executionInfo.getCluster(REMOTE_CLUSTER_2);
assertThat(remote2Cluster.getIndexExpression(), equalTo("blocking"));
assertThat(remote2Cluster.getStatus(), equalTo(EsqlExecutionInfo.Cluster.Status.PARTIAL));

EsqlExecutionInfo.Cluster localCluster = executionInfo.getCluster(LOCAL_CLUSTER);
assertThat(localCluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(localCluster, localNumShards);

assertClusterMetadataInResponse(asyncResponse, responseExpectMeta, 3);
}
} finally {
// Ensure proper cleanup if the test fails
CountingPauseFieldPlugin.allowEmitting.countDown();
assertAcked(deleteAsyncId(client(), asyncExecutionId));
}
}
Expand All @@ -131,63 +137,66 @@ public void testStopQueryLocal() throws Exception {
includeCCSMetadata.v1()
);

// wait until we know that the query against 'remote-b:blocking' has started
SimplePauseFieldPlugin.startEmitting.await(30, TimeUnit.SECONDS);

// wait until the remotes are done
waitForCluster(client(), REMOTE_CLUSTER_1, asyncExecutionId);
waitForCluster(client(), REMOTE_CLUSTER_2, asyncExecutionId);
try {
// wait until we know that the query against 'remote-b:blocking' has started
SimplePauseFieldPlugin.startEmitting.await(30, TimeUnit.SECONDS);

// wait until the remotes are done
waitForCluster(client(), REMOTE_CLUSTER_1, asyncExecutionId);
waitForCluster(client(), REMOTE_CLUSTER_2, asyncExecutionId);

/* at this point:
* the query against remotes should be finished
* the query against the local cluster should be running because it's blocked
*/

// run the stop query
AsyncStopRequest stopRequest = new AsyncStopRequest(asyncExecutionId);
ActionFuture<EsqlQueryResponse> stopAction = client().execute(EsqlAsyncStopAction.INSTANCE, stopRequest);
// ensure stop operation is running
assertBusy(() -> {
try (EsqlQueryResponse asyncResponse = getAsyncResponse(client(), asyncExecutionId)) {
EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isPartial(), is(true));
}
});
// allow local query to proceed
SimplePauseFieldPlugin.allowEmitting.countDown();

// Since part of the query has not been stopped, we expect some result to emerge here
try (EsqlQueryResponse asyncResponse = stopAction.actionGet(30, TimeUnit.SECONDS)) {
assertThat(asyncResponse.isRunning(), is(false));
assertThat(asyncResponse.columns().size(), equalTo(1));
assertThat(asyncResponse.values().hasNext(), is(true));
Iterator<Object> row = asyncResponse.values().next();
// sum of 0-9 squared is 285, from two remotes it's 570
assertThat(row.next(), equalTo(570L));

/* at this point:
* the query against remotes should be finished
* the query against the local cluster should be running because it's blocked
*/

// run the stop query
AsyncStopRequest stopRequest = new AsyncStopRequest(asyncExecutionId);
ActionFuture<EsqlQueryResponse> stopAction = client().execute(EsqlAsyncStopAction.INSTANCE, stopRequest);
// ensure stop operation is running
assertBusy(() -> {
try (EsqlQueryResponse asyncResponse = getAsyncResponse(client(), asyncExecutionId)) {
EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isPartial(), is(true));
assertThat(executionInfo.isCrossClusterSearch(), is(true));
long overallTookMillis = executionInfo.overallTook().millis();
assertThat(overallTookMillis, greaterThanOrEqualTo(0L));
assertThat(executionInfo.clusterAliases(), equalTo(Set.of(LOCAL_CLUSTER, REMOTE_CLUSTER_1, REMOTE_CLUSTER_2)));
assertThat(executionInfo.isPartial(), equalTo(true));

EsqlExecutionInfo.Cluster remoteCluster = executionInfo.getCluster(REMOTE_CLUSTER_1);
assertThat(remoteCluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(remoteCluster, remote1NumShards);

EsqlExecutionInfo.Cluster remote2Cluster = executionInfo.getCluster(REMOTE_CLUSTER_2);
assertThat(remote2Cluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(remote2Cluster, remote2NumShards);

EsqlExecutionInfo.Cluster localCluster = executionInfo.getCluster(LOCAL_CLUSTER);
assertThat(localCluster.getIndexExpression(), equalTo("blocking"));
assertThat(localCluster.getStatus(), equalTo(EsqlExecutionInfo.Cluster.Status.PARTIAL));

assertClusterMetadataInResponse(asyncResponse, responseExpectMeta, 3);
}
});
// allow local query to proceed
SimplePauseFieldPlugin.allowEmitting.countDown();

// Since part of the query has not been stopped, we expect some result to emerge here
try (EsqlQueryResponse asyncResponse = stopAction.actionGet(30, TimeUnit.SECONDS)) {
assertThat(asyncResponse.isRunning(), is(false));
assertThat(asyncResponse.columns().size(), equalTo(1));
assertThat(asyncResponse.values().hasNext(), is(true));
Iterator<Object> row = asyncResponse.values().next();
// sum of 0-9 squared is 285, from two remotes it's 570
assertThat(row.next(), equalTo(570L));

EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isCrossClusterSearch(), is(true));
long overallTookMillis = executionInfo.overallTook().millis();
assertThat(overallTookMillis, greaterThanOrEqualTo(0L));
assertThat(executionInfo.clusterAliases(), equalTo(Set.of(LOCAL_CLUSTER, REMOTE_CLUSTER_1, REMOTE_CLUSTER_2)));
assertThat(executionInfo.isPartial(), equalTo(true));

EsqlExecutionInfo.Cluster remoteCluster = executionInfo.getCluster(REMOTE_CLUSTER_1);
assertThat(remoteCluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(remoteCluster, remote1NumShards);

EsqlExecutionInfo.Cluster remote2Cluster = executionInfo.getCluster(REMOTE_CLUSTER_2);
assertThat(remote2Cluster.getIndexExpression(), equalTo("logs-*"));
assertClusterInfoSuccess(remote2Cluster, remote2NumShards);

EsqlExecutionInfo.Cluster localCluster = executionInfo.getCluster(LOCAL_CLUSTER);
assertThat(localCluster.getIndexExpression(), equalTo("blocking"));
assertThat(localCluster.getStatus(), equalTo(EsqlExecutionInfo.Cluster.Status.PARTIAL));

assertClusterMetadataInResponse(asyncResponse, responseExpectMeta, 3);
} finally {
SimplePauseFieldPlugin.allowEmitting.countDown();
assertAcked(deleteAsyncId(client(), asyncExecutionId));
}
}
Expand All @@ -205,30 +214,33 @@ public void testStopQueryLocalNoRemotes() throws Exception {
includeCCSMetadata.v1()
);

// wait until we know that the query against 'remote-b:blocking' has started
SimplePauseFieldPlugin.startEmitting.await(30, TimeUnit.SECONDS);

/* at this point:
* the query against the local cluster should be running because it's blocked
*/

// run the stop query
var stopRequest = new AsyncStopRequest(asyncExecutionId);
var stopAction = client().execute(EsqlAsyncStopAction.INSTANCE, stopRequest);
// allow local query to proceed
SimplePauseFieldPlugin.allowEmitting.countDown();

try (EsqlQueryResponse asyncResponse = stopAction.actionGet(30, TimeUnit.SECONDS)) {
assertThat(asyncResponse.isRunning(), is(false));
assertThat(asyncResponse.columns().size(), equalTo(1));
assertThat(asyncResponse.values().hasNext(), is(true));
Iterator<Object> row = asyncResponse.values().next();
assertThat((long) row.next(), greaterThanOrEqualTo(0L));

EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isCrossClusterSearch(), is(false));
try {
// wait until we know that the query against 'remote-b:blocking' has started
SimplePauseFieldPlugin.startEmitting.await(30, TimeUnit.SECONDS);

/* at this point:
* the query against the local cluster should be running because it's blocked
*/

// run the stop query
var stopRequest = new AsyncStopRequest(asyncExecutionId);
var stopAction = client().execute(EsqlAsyncStopAction.INSTANCE, stopRequest);
// allow local query to proceed
SimplePauseFieldPlugin.allowEmitting.countDown();

try (EsqlQueryResponse asyncResponse = stopAction.actionGet(30, TimeUnit.SECONDS)) {
assertThat(asyncResponse.isRunning(), is(false));
assertThat(asyncResponse.columns().size(), equalTo(1));
assertThat(asyncResponse.values().hasNext(), is(true));
Iterator<Object> row = asyncResponse.values().next();
assertThat((long) row.next(), greaterThanOrEqualTo(0L));

EsqlExecutionInfo executionInfo = asyncResponse.getExecutionInfo();
assertNotNull(executionInfo);
assertThat(executionInfo.isCrossClusterSearch(), is(false));
}
} finally {
SimplePauseFieldPlugin.allowEmitting.countDown();
assertAcked(deleteAsyncId(client(), asyncExecutionId));
}
}
Expand Down