package org.opendaylight.controller.cluster.datastore;
import static org.awaitility.Awaitility.await;
+import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import akka.actor.Address;
import akka.actor.AddressFromURIString;
import akka.cluster.Cluster;
+import akka.cluster.Member;
import akka.dispatch.Futures;
import akka.pattern.Patterns;
import akka.testkit.javadsl.TestKit;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.common.util.concurrent.Uninterruptibles;
import com.typesafe.config.ConfigFactory;
-import java.math.BigInteger;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.function.Supplier;
import org.junit.After;
import org.opendaylight.controller.cluster.databroker.TestClientBackedDataStore;
import org.opendaylight.controller.cluster.datastore.DatastoreContext.Builder;
import org.opendaylight.controller.cluster.datastore.TestShard.RequestFrontendMetadata;
+import org.opendaylight.controller.cluster.datastore.TestShard.StartDropMessages;
+import org.opendaylight.controller.cluster.datastore.TestShard.StopDropMessages;
import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
import org.opendaylight.controller.cluster.datastore.exceptions.ShardLeaderNotRespondingException;
import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
import org.opendaylight.controller.cluster.datastore.persisted.MetadataShardDataTreeSnapshot;
import org.opendaylight.controller.cluster.datastore.persisted.ShardSnapshotState;
import org.opendaylight.controller.cluster.raft.base.messages.TimeoutNow;
+import org.opendaylight.controller.cluster.raft.client.messages.GetOnDemandRaftState;
+import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
import org.opendaylight.controller.cluster.raft.client.messages.Shutdown;
+import org.opendaylight.controller.cluster.raft.messages.AppendEntries;
+import org.opendaylight.controller.cluster.raft.messages.RequestVote;
import org.opendaylight.controller.cluster.raft.persisted.ApplyJournalEntries;
import org.opendaylight.controller.cluster.raft.persisted.Snapshot;
import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
import org.opendaylight.mdsal.dom.spi.store.DOMStoreThreePhaseCommitCohort;
import org.opendaylight.mdsal.dom.spi.store.DOMStoreTransactionChain;
import org.opendaylight.mdsal.dom.spi.store.DOMStoreWriteTransaction;
+import org.opendaylight.yangtools.yang.common.Uint64;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeFactory;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import scala.concurrent.Await;
import scala.concurrent.Future;
import scala.concurrent.duration.FiniteDuration;
private void initDatastores(final String type, final String moduleShardsConfig, final String[] shards)
throws Exception {
- leaderTestKit = new IntegrationTestKit(leaderSystem, leaderDatastoreContextBuilder, commitTimeout);
+ initDatastores(type, moduleShardsConfig, shards, leaderDatastoreContextBuilder,
+ followerDatastoreContextBuilder);
+ }
+
+ private void initDatastores(final String type, final String moduleShardsConfig, final String[] shards,
+ final DatastoreContext.Builder leaderBuilder, final DatastoreContext.Builder followerBuilder)
+ throws Exception {
+ leaderTestKit = new IntegrationTestKit(leaderSystem, leaderBuilder, commitTimeout);
leaderDistributedDataStore = leaderTestKit.setupAbstractDataStore(
testParameter, type, moduleShardsConfig, false, shards);
- followerTestKit = new IntegrationTestKit(followerSystem, followerDatastoreContextBuilder, commitTimeout);
+ followerTestKit = new IntegrationTestKit(followerSystem, followerBuilder, commitTimeout);
followerDistributedDataStore = followerTestKit.setupAbstractDataStore(
testParameter, type, moduleShardsConfig, false, shards);
writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
- final MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car1 = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
final YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
writeTx.merge(car1Path, car1);
- final MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
+ final MapEntryNode car2 = CarsModel.newCarEntry("sportage", Uint64.valueOf(25000));
final YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
writeTx.merge(car2Path, car2);
for (int i = 0; i < numCars; i++) {
writeTx = txChain.newWriteOnlyTransaction();
writeTx.write(CarsModel.newCarPath("car" + i),
- CarsModel.newCarEntry("car" + i, BigInteger.valueOf(20000)));
+ CarsModel.newCarEntry("car" + i, Uint64.valueOf(20000)));
followerTestKit.doCommit(writeTx.ready());
rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
rwTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
- final MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car1 = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
rwTx.merge(CarsModel.newCarPath("optima"), car1);
verifyCars(rwTx, car1);
- final MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
+ final MapEntryNode car2 = CarsModel.newCarEntry("sportage", Uint64.valueOf(25000));
final YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
rwTx.merge(car2Path, car2);
rwTx.merge(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
- final MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car1 = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
final YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
rwTx.write(car1Path, car1);
verifyCars(rwTx, car1);
- final MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
+ final MapEntryNode car2 = CarsModel.newCarEntry("sportage", Uint64.valueOf(25000));
rwTx.merge(CarsModel.newCarPath("sportage"), car2);
rwTx.delete(car1Path);
final DOMStoreReadWriteTransaction readWriteTx = txChain.newReadWriteTransaction();
- final MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
final YangInstanceIdentifier carPath = CarsModel.newCarPath("optima");
readWriteTx.write(carPath, car);
writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
- MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ MapEntryNode car1 = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
writeTx.merge(car1Path, car1);
new WriteModification(CarsModel.BASE_PATH, CarsModel.emptyContainer()).apply(modification);
new MergeModification(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode()).apply(modification);
- final MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car1 = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
new WriteModification(CarsModel.newCarPath("optima"), car1).apply(modification);
modification.ready();
// Send another tx without immediate commit.
modification = dataTree.takeSnapshot().newModification();
- MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(30000));
+ MapEntryNode car2 = CarsModel.newCarEntry("sportage", Uint64.valueOf(30000));
new WriteModification(CarsModel.newCarPath("sportage"), car2).apply(modification);
modification.ready();
new WriteModification(CarsModel.BASE_PATH, CarsModel.emptyContainer()).apply(modification);
new MergeModification(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode()).apply(modification);
- final MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car1 = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
new WriteModification(CarsModel.newCarPath("optima"), car1).apply(modification);
ForwardedReadyTransaction forwardedReady = new ForwardedReadyTransaction(tx1,
// Send another tx without immediate commit.
modification = dataTree.takeSnapshot().newModification();
- MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(30000));
+ MapEntryNode car2 = CarsModel.newCarEntry("sportage", Uint64.valueOf(30000));
new WriteModification(CarsModel.newCarPath("sportage"), car2).apply(modification);
forwardedReady = new ForwardedReadyTransaction(tx2,
final DOMStoreWriteTransaction writeTx2 = followerDistributedDataStore.newWriteOnlyTransaction();
final LinkedList<MapEntryNode> cars = new LinkedList<>();
int carIndex = 1;
- cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
+ cars.add(CarsModel.newCarEntry("car" + carIndex, Uint64.valueOf(carIndex)));
writeTx2.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
carIndex++;
NormalizedNode<?, ?> people = ImmutableNodes.mapNodeBuilder(PeopleModel.PERSON_QNAME)
final DOMStoreWriteTransaction writeTx3 = followerDistributedDataStore.newWriteOnlyTransaction();
for (int i = 1; i <= 5; i++, carIndex++) {
- cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
+ cars.add(CarsModel.newCarEntry("car" + carIndex, Uint64.valueOf(carIndex)));
writeTx3.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
}
// message on ready.
final DOMStoreWriteTransaction writeTx4 = followerDistributedDataStore.newWriteOnlyTransaction();
- cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
+ cars.add(CarsModel.newCarEntry("car" + carIndex, Uint64.valueOf(carIndex)));
writeTx4.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
carIndex++;
// leader shard on ready.
final DOMStoreReadWriteTransaction readWriteTx = followerDistributedDataStore.newReadWriteTransaction();
- cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
+ cars.add(CarsModel.newCarEntry("car" + carIndex, Uint64.valueOf(carIndex)));
readWriteTx.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars",
stats -> assertEquals("getTxCohortCacheSize", 1, stats.getTxCohortCacheSize()));
writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
- final MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
+ final MapEntryNode car = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
writeTx.write(CarsModel.newCarPath("optima"), car);
final DOMStoreThreePhaseCommitCohort cohort2 = writeTx.ready();
}
}
+ @Test
+ public void testSemiReachableCandidateNotDroppingLeader() throws Exception {
+ final String testName = "testSemiReachableCandidateNotDroppingLeader";
+ initDatastores(testName, MODULE_SHARDS_CARS_1_2_3, CARS);
+
+ final DatastoreContext.Builder follower2DatastoreContextBuilder = DatastoreContext.newBuilder()
+ .shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(10);
+ final IntegrationTestKit follower2TestKit = new IntegrationTestKit(
+ follower2System, follower2DatastoreContextBuilder, commitTimeout);
+
+ final AbstractDataStore ds2 =
+ follower2TestKit.setupAbstractDataStore(
+ testParameter, testName, MODULE_SHARDS_CARS_1_2_3, false, CARS);
+
+ followerTestKit.waitForMembersUp("member-1", "member-3");
+ follower2TestKit.waitForMembersUp("member-1", "member-2");
+
+ TestKit.shutdownActorSystem(follower2System);
+
+ ActorRef cars = leaderDistributedDataStore.getActorUtils().findLocalShard("cars").get();
+ OnDemandRaftState initialState = (OnDemandRaftState) leaderDistributedDataStore.getActorUtils()
+ .executeOperation(cars, GetOnDemandRaftState.INSTANCE);
+
+ Cluster leaderCluster = Cluster.get(leaderSystem);
+ Cluster followerCluster = Cluster.get(followerSystem);
+ Cluster follower2Cluster = Cluster.get(follower2System);
+
+ Member follower2Member = follower2Cluster.readView().self();
+
+ await().atMost(10, TimeUnit.SECONDS)
+ .until(() -> leaderCluster.readView().unreachableMembers().contains(follower2Member));
+ await().atMost(10, TimeUnit.SECONDS)
+ .until(() -> followerCluster.readView().unreachableMembers().contains(follower2Member));
+
+ ActorRef followerCars = followerDistributedDataStore.getActorUtils().findLocalShard("cars").get();
+
+ // to simulate a follower not being able to receive messages, but still being able to send messages and becoming
+ // candidate, we can just send a couple of RequestVotes to both leader and follower.
+ cars.tell(new RequestVote(initialState.getCurrentTerm() + 1, "member-3-shard-cars", -1, -1), null);
+ followerCars.tell(new RequestVote(initialState.getCurrentTerm() + 1, "member-3-shard-cars", -1, -1), null);
+ cars.tell(new RequestVote(initialState.getCurrentTerm() + 3, "member-3-shard-cars", -1, -1), null);
+ followerCars.tell(new RequestVote(initialState.getCurrentTerm() + 3, "member-3-shard-cars", -1, -1), null);
+
+ OnDemandRaftState stateAfter = (OnDemandRaftState) leaderDistributedDataStore.getActorUtils()
+ .executeOperation(cars, GetOnDemandRaftState.INSTANCE);
+ OnDemandRaftState followerState = (OnDemandRaftState) followerDistributedDataStore.getActorUtils()
+ .executeOperation(cars, GetOnDemandRaftState.INSTANCE);
+
+ assertEquals(initialState.getCurrentTerm(), stateAfter.getCurrentTerm());
+ assertEquals(initialState.getCurrentTerm(), followerState.getCurrentTerm());
+
+ ds2.close();
+ }
+
@Test
public void testInstallSnapshot() throws Exception {
final String testName = "testInstallSnapshot";
SchemaContextHelper.full());
final ContainerNode carsNode = CarsModel.newCarsNode(
- CarsModel.newCarsMapNode(CarsModel.newCarEntry("optima", BigInteger.valueOf(20000))));
+ CarsModel.newCarsMapNode(CarsModel.newCarEntry("optima", Uint64.valueOf(20000))));
AbstractShardTest.writeToStore(tree, CarsModel.BASE_PATH, carsNode);
final NormalizedNode<?, ?> snapshotRoot = AbstractShardTest.readStore(tree, YangInstanceIdentifier.empty());
verifyNode(rwTx, CarsModel.BASE_PATH, carsNode);
}
+ @SuppressWarnings("IllegalCatch")
+ @Test
+ public void testRaftCallbackDuringLeadershipDrop() throws Exception {
+ final String testName = "testRaftCallbackDuringLeadershipDrop";
+ initDatastores(testName, MODULE_SHARDS_CARS_1_2_3, CARS);
+
+ final ExecutorService executor = Executors.newSingleThreadExecutor();
+
+ final IntegrationTestKit follower2TestKit = new IntegrationTestKit(follower2System,
+ DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build()).operationTimeoutInMillis(500)
+ .shardLeaderElectionTimeoutInSeconds(3600),
+ commitTimeout);
+
+ final DOMStoreWriteTransaction initialWriteTx = leaderDistributedDataStore.newWriteOnlyTransaction();
+ initialWriteTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
+ leaderTestKit.doCommit(initialWriteTx.ready());
+
+ try (AbstractDataStore follower2DistributedDataStore = follower2TestKit.setupAbstractDataStore(
+ testParameter, testName, MODULE_SHARDS_CARS_1_2_3, false)) {
+
+ final ActorRef member3Cars = ((LocalShardStore) follower2DistributedDataStore).getLocalShards()
+ .getLocalShards().get("cars").getActor();
+ final ActorRef member2Cars = ((LocalShardStore)followerDistributedDataStore).getLocalShards()
+ .getLocalShards().get("cars").getActor();
+ member2Cars.tell(new StartDropMessages(AppendEntries.class), null);
+ member3Cars.tell(new StartDropMessages(AppendEntries.class), null);
+
+ final DOMStoreWriteTransaction newTx = leaderDistributedDataStore.newWriteOnlyTransaction();
+ newTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
+ final AtomicBoolean submitDone = new AtomicBoolean(false);
+ executor.submit(() -> {
+ try {
+ leaderTestKit.doCommit(newTx.ready());
+ submitDone.set(true);
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ });
+ final ActorRef leaderCars = ((LocalShardStore) leaderDistributedDataStore).getLocalShards()
+ .getLocalShards().get("cars").getActor();
+ await().atMost(10, TimeUnit.SECONDS)
+ .until(() -> ((OnDemandRaftState) leaderDistributedDataStore.getActorUtils()
+ .executeOperation(leaderCars, GetOnDemandRaftState.INSTANCE)).getLastIndex() >= 1);
+
+ final OnDemandRaftState raftState = (OnDemandRaftState)leaderDistributedDataStore.getActorUtils()
+ .executeOperation(leaderCars, GetOnDemandRaftState.INSTANCE);
+
+ // Simulate a follower not receiving heartbeats but still being able to send messages ie RequestVote with
+ // new term(switching to candidate after election timeout)
+ leaderCars.tell(new RequestVote(raftState.getCurrentTerm() + 1,
+ "member-3-shard-cars-testRaftCallbackDuringLeadershipDrop", -1,
+ -1), member3Cars);
+
+ member2Cars.tell(new StopDropMessages(AppendEntries.class), null);
+ member3Cars.tell(new StopDropMessages(AppendEntries.class), null);
+
+ await("Is tx stuck in COMMIT_PENDING")
+ .atMost(10, TimeUnit.SECONDS).untilAtomic(submitDone, equalTo(true));
+
+ }
+
+ executor.shutdownNow();
+ }
+
+ @Test
+ public void testSnapshotOnRootOverwrite() throws Exception {
+ if (!DistributedDataStore.class.isAssignableFrom(testParameter)) {
+ // FIXME: ClientBackedDatastore does not have stable indexes/term, the snapshot index seems to fluctuate
+ return;
+ }
+
+ final String testName = "testSnapshotOnRootOverwrite";
+ final String[] shards = {"cars", "default"};
+ initDatastores(testName, "module-shards-default-cars-member1-and-2.conf", shards,
+ leaderDatastoreContextBuilder.snapshotOnRootOverwrite(true),
+ followerDatastoreContextBuilder.snapshotOnRootOverwrite(true));
+
+ leaderTestKit.waitForMembersUp("member-2");
+ final ContainerNode rootNode = ImmutableContainerNodeBuilder.create()
+ .withNodeIdentifier(YangInstanceIdentifier.NodeIdentifier.create(SchemaContext.NAME))
+ .withChild((ContainerNode) CarsModel.create())
+ .build();
+
+ leaderTestKit.testWriteTransaction(leaderDistributedDataStore, YangInstanceIdentifier.empty(), rootNode);
+
+ IntegrationTestKit.verifyShardState(leaderDistributedDataStore, "cars",
+ state -> assertEquals(1, state.getSnapshotIndex()));
+
+ IntegrationTestKit.verifyShardState(followerDistributedDataStore, "cars",
+ state -> assertEquals(1, state.getSnapshotIndex()));
+
+ verifySnapshot("member-1-shard-cars-testSnapshotOnRootOverwrite", 1);
+ verifySnapshot("member-2-shard-cars-testSnapshotOnRootOverwrite", 1);
+
+ for (int i = 0; i < 10; i++) {
+ leaderTestKit.testWriteTransaction(leaderDistributedDataStore, CarsModel.newCarPath("car " + i),
+ CarsModel.newCarEntry("car " + i, Uint64.ONE));
+ }
+
+ // fake snapshot causes the snapshotIndex to move
+ IntegrationTestKit.verifyShardState(leaderDistributedDataStore, "cars",
+ state -> assertEquals(10, state.getSnapshotIndex()));
+ IntegrationTestKit.verifyShardState(followerDistributedDataStore, "cars",
+ state -> assertEquals(10, state.getSnapshotIndex()));
+
+ // however the real snapshot still has not changed and was taken at index 1
+ verifySnapshot("member-1-shard-cars-testSnapshotOnRootOverwrite", 1);
+ verifySnapshot("member-2-shard-cars-testSnapshotOnRootOverwrite", 1);
+
+ // root overwrite so expect a snapshot
+ leaderTestKit.testWriteTransaction(leaderDistributedDataStore, YangInstanceIdentifier.empty(), rootNode);
+
+ // this was a real snapshot so everything should be in it(1(DisableTrackingPayload) + 1 + 10 + 1)
+ IntegrationTestKit.verifyShardState(leaderDistributedDataStore, "cars",
+ state -> assertEquals(12, state.getSnapshotIndex()));
+ IntegrationTestKit.verifyShardState(followerDistributedDataStore, "cars",
+ state -> assertEquals(12, state.getSnapshotIndex()));
+
+ verifySnapshot("member-1-shard-cars-testSnapshotOnRootOverwrite", 12);
+ verifySnapshot("member-2-shard-cars-testSnapshotOnRootOverwrite", 12);
+ }
+
+ private void verifySnapshot(final String persistenceId, final long lastAppliedIndex) {
+ await().atMost(5, TimeUnit.SECONDS).untilAsserted(() -> {
+ List<Snapshot> snap = InMemorySnapshotStore.getSnapshots(persistenceId, Snapshot.class);
+ assertEquals(1, snap.size());
+ assertEquals(lastAppliedIndex, snap.get(0).getLastAppliedIndex());
+ }
+ );
+ }
+
private static void verifySnapshot(final Snapshot actual, final Snapshot expected,
final NormalizedNode<?, ?> expRoot) {
assertEquals("Snapshot getLastAppliedTerm", expected.getLastAppliedTerm(), actual.getLastAppliedTerm());
Code Review / controller.git / blobdiff