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DefaultSessionTest.java
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DefaultSessionTest.java
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/*
* Copyright DataStax, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.datastax.oss.driver.internal.core.session;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.config.CoreDriverOption;
import com.datastax.oss.driver.api.core.config.DriverConfig;
import com.datastax.oss.driver.api.core.config.DriverConfigProfile;
import com.datastax.oss.driver.api.core.loadbalancing.NodeDistance;
import com.datastax.oss.driver.api.core.metadata.Metadata;
import com.datastax.oss.driver.api.core.metadata.Node;
import com.datastax.oss.driver.api.core.metadata.NodeState;
import com.datastax.oss.driver.api.core.cql.CqlSession;
import com.datastax.oss.driver.api.core.session.Session;
import com.datastax.oss.driver.internal.core.context.EventBus;
import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
import com.datastax.oss.driver.internal.core.context.NettyOptions;
import com.datastax.oss.driver.internal.core.metadata.DefaultNode;
import com.datastax.oss.driver.internal.core.metadata.DistanceEvent;
import com.datastax.oss.driver.internal.core.metadata.MetadataManager;
import com.datastax.oss.driver.internal.core.metadata.NodeStateEvent;
import com.datastax.oss.driver.internal.core.pool.ChannelPool;
import com.datastax.oss.driver.internal.core.pool.ChannelPoolFactory;
import com.datastax.oss.driver.internal.core.util.concurrent.CompletableFutures;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.Uninterruptibles;
import io.netty.channel.DefaultEventLoopGroup;
import io.netty.util.concurrent.Future;
import java.net.InetSocketAddress;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import static com.datastax.oss.driver.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.timeout;
public class DefaultSessionTest {
private static final CqlIdentifier KEYSPACE = CqlIdentifier.fromInternal("ks");
@Mock private InternalDriverContext context;
@Mock private NettyOptions nettyOptions;
@Mock private ChannelPoolFactory channelPoolFactory;
@Mock private MetadataManager metadataManager;
@Mock private Metadata metadata;
@Mock private DriverConfig config;
@Mock private DriverConfigProfile defaultConfigProfile;
private DefaultNode node1;
private DefaultNode node2;
private DefaultNode node3;
private DefaultEventLoopGroup adminEventLoopGroup;
private EventBus eventBus;
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
adminEventLoopGroup = new DefaultEventLoopGroup(1);
Mockito.when(context.nettyOptions()).thenReturn(nettyOptions);
Mockito.when(nettyOptions.adminEventExecutorGroup()).thenReturn(adminEventLoopGroup);
Mockito.when(context.channelPoolFactory()).thenReturn(channelPoolFactory);
eventBus = Mockito.spy(new EventBus("test"));
Mockito.when(context.eventBus()).thenReturn(eventBus);
node1 = mockLocalNode(1);
node2 = mockLocalNode(2);
node3 = mockLocalNode(3);
ImmutableMap<InetSocketAddress, Node> nodes =
ImmutableMap.of(
node1.getConnectAddress(), node1,
node2.getConnectAddress(), node2,
node3.getConnectAddress(), node3);
Mockito.when(metadata.getNodes()).thenReturn(nodes);
Mockito.when(metadataManager.getMetadata()).thenReturn(metadata);
Mockito.when(context.metadataManager()).thenReturn(metadataManager);
Mockito.when(defaultConfigProfile.getBoolean(CoreDriverOption.REQUEST_WARN_IF_SET_KEYSPACE))
.thenReturn(true);
Mockito.when(defaultConfigProfile.getBoolean(CoreDriverOption.REPREPARE_ENABLED))
.thenReturn(false);
Mockito.when(config.getDefaultProfile()).thenReturn(defaultConfigProfile);
Mockito.when(context.config()).thenReturn(config);
}
@Test
public void should_initialize_pools_with_distances() {
Mockito.when(node3.getDistance()).thenReturn(NodeDistance.REMOTE);
CompletableFuture<ChannelPool> pool1Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool3Future = new CompletableFuture<>();
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.pending(node1, KEYSPACE, NodeDistance.LOCAL, pool1Future)
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.pending(node3, KEYSPACE, NodeDistance.REMOTE, pool3Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.REMOTE);
waitForPendingAdminTasks();
assertThat(initFuture).isNotDone();
pool1Future.complete(pool1);
pool2Future.complete(pool2);
pool3Future.complete(pool3);
waitForPendingAdminTasks();
assertThat(initFuture)
.isSuccess(
session ->
assertThat(((DefaultSession) session).getPools())
.containsValues(pool1, pool2, pool3));
}
@Test
public void should_not_connect_to_ignored_nodes() {
Mockito.when(node2.getDistance()).thenReturn(NodeDistance.IGNORED);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// Initial connection
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture)
.isSuccess(
session ->
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3));
}
@Test
public void should_not_connect_to_forced_down_nodes() {
Mockito.when(node2.getState()).thenReturn(NodeState.FORCED_DOWN);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// Initial connection
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture)
.isSuccess(
session ->
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3));
}
@Test
public void should_adjust_distance_if_changed_while_init() {
CompletableFuture<ChannelPool> pool1Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool3Future = new CompletableFuture<>();
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.pending(node1, KEYSPACE, NodeDistance.LOCAL, pool1Future)
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.pending(node3, KEYSPACE, NodeDistance.LOCAL, pool3Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isNotDone();
// Distance changes while init still pending
eventBus.fire(new DistanceEvent(NodeDistance.REMOTE, node2));
pool1Future.complete(pool1);
pool2Future.complete(pool2);
pool3Future.complete(pool3);
waitForPendingAdminTasks();
Mockito.verify(pool2).resize(NodeDistance.REMOTE);
assertThat(initFuture)
.isSuccess(
session ->
assertThat(((DefaultSession) session).getPools())
.containsValues(pool1, pool2, pool3));
}
@Test
public void should_remove_pool_if_ignored_while_init() {
CompletableFuture<ChannelPool> pool1Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool3Future = new CompletableFuture<>();
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.pending(node1, KEYSPACE, NodeDistance.LOCAL, pool1Future)
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.pending(node3, KEYSPACE, NodeDistance.LOCAL, pool3Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isNotDone();
// Distance changes while init still pending
eventBus.fire(new DistanceEvent(NodeDistance.IGNORED, node2));
pool1Future.complete(pool1);
pool2Future.complete(pool2);
pool3Future.complete(pool3);
waitForPendingAdminTasks();
Mockito.verify(pool2).closeAsync();
assertThat(initFuture)
.isSuccess(
session ->
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3));
}
@Test
public void should_remove_pool_if_forced_down_while_init() {
CompletableFuture<ChannelPool> pool1Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
CompletableFuture<ChannelPool> pool3Future = new CompletableFuture<>();
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.pending(node1, KEYSPACE, NodeDistance.LOCAL, pool1Future)
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.pending(node3, KEYSPACE, NodeDistance.LOCAL, pool3Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isNotDone();
// Forced down while init still pending
eventBus.fire(NodeStateEvent.changed(NodeState.UP, NodeState.FORCED_DOWN, node2));
pool1Future.complete(pool1);
pool2Future.complete(pool2);
pool3Future.complete(pool3);
waitForPendingAdminTasks();
Mockito.verify(pool2).closeAsync();
assertThat(initFuture)
.isSuccess(
session ->
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3));
}
@Test
public void should_resize_pool_if_distance_changes() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
eventBus.fire(new DistanceEvent(NodeDistance.REMOTE, node2));
Mockito.verify(pool2, timeout(500)).resize(NodeDistance.REMOTE);
}
@Test
public void should_remove_pool_if_node_becomes_ignored() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
eventBus.fire(new DistanceEvent(NodeDistance.IGNORED, node2));
Mockito.verify(pool2, timeout(500)).closeAsync();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
}
@Test
public void should_do_nothing_if_node_becomes_ignored_but_was_already_ignored() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
eventBus.fire(new DistanceEvent(NodeDistance.IGNORED, node2));
Mockito.verify(pool2, timeout(100)).closeAsync();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
// Fire the same event again, nothing should happen
eventBus.fire(new DistanceEvent(NodeDistance.IGNORED, node2));
waitForPendingAdminTasks();
factoryHelper.verifyNoMoreCalls();
}
@Test
public void should_recreate_pool_if_node_becomes_not_ignored() {
Mockito.when(node2.getDistance()).thenReturn(NodeDistance.IGNORED);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// Initial connection
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// When node2 becomes not ignored
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
eventBus.fire(new DistanceEvent(NodeDistance.LOCAL, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool2, pool3);
}
@Test
public void should_remove_pool_if_node_is_forced_down() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
eventBus.fire(NodeStateEvent.changed(NodeState.UP, NodeState.FORCED_DOWN, node2));
Mockito.verify(pool2, timeout(500)).closeAsync();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
}
@Test
public void should_recreate_pool_if_node_is_forced_back_up() {
Mockito.when(node2.getState()).thenReturn(NodeState.FORCED_DOWN);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// init
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// when node2 comes back up
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
eventBus.fire(NodeStateEvent.changed(NodeState.FORCED_DOWN, NodeState.UP, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool2, pool3);
}
@Test
public void should_not_recreate_pool_if_node_is_forced_back_up_but_ignored() {
Mockito.when(node2.getState()).thenReturn(NodeState.FORCED_DOWN);
Mockito.when(node2.getDistance()).thenReturn(NodeDistance.IGNORED);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// init
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
eventBus.fire(NodeStateEvent.changed(NodeState.FORCED_DOWN, NodeState.UP, node2));
waitForPendingAdminTasks();
factoryHelper.verifyNoMoreCalls();
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
}
@Test
public void should_adjust_distance_if_changed_while_recreating() {
Mockito.when(node2.getDistance()).thenReturn(NodeDistance.IGNORED);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// Initial connection
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// When node2 becomes not ignored
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
eventBus.fire(new DistanceEvent(NodeDistance.LOCAL, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
// Distance changes again while pool init is in progress
eventBus.fire(new DistanceEvent(NodeDistance.REMOTE, node2));
// Now pool init succeeds
pool2Future.complete(pool2);
waitForPendingAdminTasks();
// Pool should have been adjusted
Mockito.verify(pool2).resize(NodeDistance.REMOTE);
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool2, pool3);
}
@Test
public void should_remove_pool_if_ignored_while_recreating() {
Mockito.when(node2.getDistance()).thenReturn(NodeDistance.IGNORED);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// Initial connection
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// When node2 becomes not ignored
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
eventBus.fire(new DistanceEvent(NodeDistance.LOCAL, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
// Distance changes to ignored while pool init is in progress
eventBus.fire(new DistanceEvent(NodeDistance.IGNORED, node2));
// Now pool init succeeds
pool2Future.complete(pool2);
waitForPendingAdminTasks();
// Pool should have been closed
Mockito.verify(pool2).closeAsync();
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
}
@Test
public void should_remove_pool_if_forced_down_while_recreating() {
Mockito.when(node2.getDistance()).thenReturn(NodeDistance.IGNORED);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// Initial connection
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// When node2 becomes not ignored
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
eventBus.fire(new DistanceEvent(NodeDistance.LOCAL, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
// Forced down while pool init is in progress
eventBus.fire(NodeStateEvent.changed(NodeState.UP, NodeState.FORCED_DOWN, node2));
// Now pool init succeeds
pool2Future.complete(pool2);
waitForPendingAdminTasks();
// Pool should have been closed
Mockito.verify(pool2).closeAsync();
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
}
@Test
public void should_close_all_pools_when_closing() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
CompletionStage<Void> closeFuture = session.closeAsync();
waitForPendingAdminTasks();
assertThat(closeFuture).isSuccess();
Mockito.verify(pool1).closeAsync();
Mockito.verify(pool2).closeAsync();
Mockito.verify(pool3).closeAsync();
}
@Test
public void should_force_close_all_pools_when_force_closing() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
CompletionStage<Void> closeFuture = session.forceCloseAsync();
waitForPendingAdminTasks();
assertThat(closeFuture).isSuccess();
Mockito.verify(pool1).forceCloseAsync();
Mockito.verify(pool2).forceCloseAsync();
Mockito.verify(pool3).forceCloseAsync();
}
@Test
public void should_close_pool_if_recreated_while_closing() {
Mockito.when(node2.getState()).thenReturn(NodeState.FORCED_DOWN);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// init
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// when node2 comes back up
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(((DefaultSession) session).getPools()).containsValues(pool1, pool3);
// node2 comes back up, start initializing a pool for it
eventBus.fire(NodeStateEvent.changed(NodeState.FORCED_DOWN, NodeState.UP, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
// but the session gets closed before pool init completes
CompletionStage<Void> closeFuture = session.closeAsync();
waitForPendingAdminTasks();
assertThat(closeFuture).isSuccess();
// now pool init completes
pool2Future.complete(pool2);
waitForPendingAdminTasks();
// Pool should have been closed
Mockito.verify(pool2).forceCloseAsync();
}
@Test
public void should_set_keyspace_on_all_pools() {
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node2, KEYSPACE, NodeDistance.LOCAL, pool2)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
Session session = CompletableFutures.getCompleted(initFuture.toCompletableFuture());
CqlIdentifier newKeyspace = CqlIdentifier.fromInternal("newKeyspace");
((DefaultSession) session).setKeyspace(newKeyspace);
waitForPendingAdminTasks();
Mockito.verify(pool1).setKeyspace(newKeyspace);
Mockito.verify(pool2).setKeyspace(newKeyspace);
Mockito.verify(pool3).setKeyspace(newKeyspace);
}
@Test
public void should_set_keyspace_on_pool_if_recreated_while_switching_keyspace() {
Mockito.when(node2.getState()).thenReturn(NodeState.FORCED_DOWN);
ChannelPool pool1 = mockPool(node1);
ChannelPool pool2 = mockPool(node2);
CompletableFuture<ChannelPool> pool2Future = new CompletableFuture<>();
ChannelPool pool3 = mockPool(node3);
MockChannelPoolFactoryHelper factoryHelper =
MockChannelPoolFactoryHelper.builder(channelPoolFactory)
// init
.success(node1, KEYSPACE, NodeDistance.LOCAL, pool1)
.success(node3, KEYSPACE, NodeDistance.LOCAL, pool3)
// when node2 comes back up
.pending(node2, KEYSPACE, NodeDistance.LOCAL, pool2Future)
.build();
CompletionStage<CqlSession> initFuture = DefaultSession.init(context, KEYSPACE, "test");
factoryHelper.waitForCall(node1, KEYSPACE, NodeDistance.LOCAL);
factoryHelper.waitForCall(node3, KEYSPACE, NodeDistance.LOCAL);
waitForPendingAdminTasks();
assertThat(initFuture).isSuccess();
DefaultSession session =
(DefaultSession) CompletableFutures.getCompleted(initFuture.toCompletableFuture());
assertThat(session.getPools()).containsValues(pool1, pool3);
// node2 comes back up, start initializing a pool for it
eventBus.fire(NodeStateEvent.changed(NodeState.FORCED_DOWN, NodeState.UP, node2));
factoryHelper.waitForCall(node2, KEYSPACE, NodeDistance.LOCAL);
// Keyspace gets changed on the session in the meantime, node2's pool will miss it
CqlIdentifier newKeyspace = CqlIdentifier.fromInternal("newKeyspace");
session.setKeyspace(newKeyspace);
waitForPendingAdminTasks();
Mockito.verify(pool1).setKeyspace(newKeyspace);
Mockito.verify(pool3).setKeyspace(newKeyspace);
// now pool init completes
pool2Future.complete(pool2);
waitForPendingAdminTasks();
// Pool should have been closed
Mockito.verify(pool2).setKeyspace(newKeyspace);
}
private ChannelPool mockPool(Node node) {
ChannelPool pool = Mockito.mock(ChannelPool.class);
Mockito.when(pool.getNode()).thenReturn(node);
Mockito.when(pool.getInitialKeyspaceName()).thenReturn(KEYSPACE);
Mockito.when(pool.setKeyspace(any(CqlIdentifier.class)))
.thenReturn(CompletableFuture.completedFuture(null));
CompletableFuture<Void> closeFuture = new CompletableFuture<>();
Mockito.when(pool.closeFuture()).thenReturn(closeFuture);
Mockito.when(pool.closeAsync())
.then(
i -> {
closeFuture.complete(null);
return closeFuture;
});
Mockito.when(pool.forceCloseAsync())
.then(
i -> {
closeFuture.complete(null);
return closeFuture;
});
return pool;
}
private static DefaultNode mockLocalNode(int i) {
DefaultNode node = Mockito.mock(DefaultNode.class);
Mockito.when(node.getConnectAddress()).thenReturn(new InetSocketAddress("127.0.0." + i, 9042));
Mockito.when(node.getDistance()).thenReturn(NodeDistance.LOCAL);
Mockito.when(node.toString()).thenReturn("node" + i);
return node;
}
// Wait for all the tasks on the pool's admin executor to complete.
private void waitForPendingAdminTasks() {
// This works because the event loop group is single-threaded
Future<?> f = adminEventLoopGroup.schedule(() -> null, 5, TimeUnit.NANOSECONDS);
try {
Uninterruptibles.getUninterruptibly(f, 100, TimeUnit.MILLISECONDS);
} catch (ExecutionException e) {
fail("unexpected error", e.getCause());
} catch (TimeoutException e) {
fail("timed out while waiting for admin tasks to complete", e);
}
}
}