//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void aReadReplicShouldBeAbleToRejoinTheCluster() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void AReadReplicShouldBeAbleToRejoinTheCluster()
{
int readReplicaId = 4;
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.causalclustering.discovery.Cluster<?> cluster = clusterRule.withNumberOfReadReplicas(0).startCluster();
Cluster <object> cluster = ClusterRule.withNumberOfReadReplicas(0).startCluster();
cluster.CoreTx(_createSomeData);
cluster.AddReadReplicaWithId(readReplicaId).start();
// let's spend some time by adding more data
cluster.CoreTx(_createSomeData);
awaitEx(() => ReadReplicasUpToDateAsTheLeader(cluster.AwaitLeader(), cluster.ReadReplicas()), 1, TimeUnit.MINUTES);
cluster.RemoveReadReplicaWithMemberId(readReplicaId);
// let's spend some time by adding more data
cluster.CoreTx(_createSomeData);
cluster.AddReadReplicaWithId(readReplicaId).start();
awaitEx(() => ReadReplicasUpToDateAsTheLeader(cluster.AwaitLeader(), cluster.ReadReplicas()), 1, TimeUnit.MINUTES);
System.Func <ClusterMember, DbRepresentation> toRep = db => DbRepresentation.of(Db.database());
//JAVA TO C# CONVERTER TODO TASK: Most Java stream collectors are not converted by Java to C# Converter:
ISet <DbRepresentation> dbs = cluster.CoreMembers().Select(toRep).collect(toSet());
//JAVA TO C# CONVERTER TODO TASK: Most Java stream collectors are not converted by Java to C# Converter:
dbs.addAll(cluster.ReadReplicas().Select(toRep).collect(toSet()));
cluster.Shutdown();
assertEquals(1, dbs.Count);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldShutdownRatherThanPullUpdatesFromCoreMemberWithDifferentStoreIdIfLocalStoreIsNonEmpty() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldShutdownRatherThanPullUpdatesFromCoreMemberWithDifferentStoreIdIfLocalStoreIsNonEmpty()
{
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.causalclustering.discovery.Cluster<?> cluster = clusterRule.withNumberOfReadReplicas(0).startCluster();
Cluster <object> cluster = ClusterRule.withNumberOfReadReplicas(0).startCluster();
cluster.CoreTx(_createSomeData);
cluster.AwaitCoreMemberWithRole(Role.FOLLOWER, 2, TimeUnit.SECONDS);
// Get a read replica and make sure that it is operational
ReadReplica readReplica = cluster.AddReadReplicaWithId(4);
readReplica.Start();
readReplica.Database().beginTx().close();
// Change the store id, so it should fail to join the cluster again
ChangeStoreId(readReplica);
readReplica.Shutdown();
try
{
readReplica.Start();
fail("Should have failed to start");
}
catch (Exception required)
{
// Lifecycle should throw exception, server should not start.
assertThat(required.InnerException, instanceOf(typeof(LifecycleException)));
assertThat(required.InnerException.InnerException, instanceOf(typeof(Exception)));
assertThat(required.InnerException.InnerException.Message, containsString("This read replica cannot join the cluster. " + "The local database is not empty and has a mismatching storeId:"));
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCatchupThroughHierarchy() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldCatchupThroughHierarchy()
{
ClusterRule = ClusterRule.withInstanceReadReplicaParam(CausalClusteringSettings.server_groups, id => _serverGroups[id]).withInstanceCoreParam(CausalClusteringSettings.server_groups, id => _serverGroups[id]);
// given
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.causalclustering.discovery.Cluster<?> cluster = clusterRule.startCluster();
Cluster <object> cluster = ClusterRule.startCluster();
int numberOfNodesToCreate = 100;
cluster.CoreTx((db, tx) =>
{
Db.schema().constraintFor(label("Foo")).assertPropertyIsUnique("foobar").create();
tx.success();
});
// 0, 1, 2 are core instances
createLabelledNodesWithProperty(cluster, numberOfNodesToCreate, label("Foo"), () => Pair.of("foobar", string.Format("baz_bat{0}", System.Guid.randomUUID())));
// 3, 4 are other DCs
ReadReplica east3 = cluster.AddReadReplicaWithId(3);
east3.Start();
ReadReplica west4 = cluster.AddReadReplicaWithId(4);
west4.Start();
checkDataHasReplicatedToReadReplicas(cluster, numberOfNodesToCreate);
foreach (CoreClusterMember coreClusterMember in cluster.CoreMembers())
{
coreClusterMember.DisableCatchupServer();
}
// 5, 6 are other DCs
ReadReplica east5 = cluster.AddReadReplicaWithId(5);
east5.UpstreamDatabaseSelectionStrategy = "connect-randomly-within-server-group";
east5.Start();
ReadReplica west6 = cluster.AddReadReplicaWithId(6);
west6.UpstreamDatabaseSelectionStrategy = "connect-randomly-within-server-group";
west6.Start();
checkDataHasReplicatedToReadReplicas(cluster, numberOfNodesToCreate);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldDiscoverNewReadReplicas() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldDiscoverNewReadReplicas()
{
// given
int coreMembers = 3;
int initialReadReplicas = 2;
ClusterRule.withNumberOfCoreMembers(coreMembers);
ClusterRule.withNumberOfReadReplicas(initialReadReplicas);
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.causalclustering.discovery.Cluster<?> cluster = clusterRule.startCluster();
Cluster <object> cluster = ClusterRule.startCluster();
// when
cluster.AddReadReplicaWithId(initialReadReplicas).start();
cluster.AddReadReplicaWithId(initialReadReplicas + 1).start();
Matcher <IList <MemberInfo> > expected = allOf(ContainsAllMemberAddresses(cluster.CoreMembers(), cluster.ReadReplicas()), ContainsRole(LEADER, 1), ContainsRole(FOLLOWER, coreMembers - 1), ContainsRole(READ_REPLICA, initialReadReplicas + 2));
// then
AssertAllEventualOverviews(cluster, expected);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCatchUpFromCoresWhenPreferredReadReplicasAreUnavailable() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldCatchUpFromCoresWhenPreferredReadReplicasAreUnavailable()
{
// given
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.causalclustering.discovery.Cluster<?> cluster = clusterRule.startCluster();
Cluster <object> cluster = ClusterRule.startCluster();
int numberOfNodes = 1;
int firstReadReplicaLocalMemberId = 101;
cluster.CoreTx((db, tx) =>
{
Db.schema().constraintFor(label("Foo")).assertPropertyIsUnique("foobar").create();
tx.success();
});
createLabelledNodesWithProperty(cluster, numberOfNodes, label("Foo"), () => Pair.of("foobar", string.Format("baz_bat{0}", System.Guid.randomUUID())));
ReadReplica firstReadReplica = cluster.AddReadReplicaWithIdAndMonitors(firstReadReplicaLocalMemberId, new Monitors());
firstReadReplica.Start();
CheckDataHasReplicatedToReadReplicas(cluster, numberOfNodes);
upstreamFactory.Current = firstReadReplica;
ReadReplica secondReadReplica = cluster.AddReadReplicaWithId(202);
secondReadReplica.UpstreamDatabaseSelectionStrategy = "specific";
secondReadReplica.Start();
CheckDataHasReplicatedToReadReplicas(cluster, numberOfNodes);
firstReadReplica.Shutdown();
upstreamFactory.reset();
cluster.RemoveReadReplicaWithMemberId(firstReadReplicaLocalMemberId);
// when
// More transactions into core
createLabelledNodesWithProperty(cluster, numberOfNodes, label("Foo"), () => Pair.of("foobar", string.Format("baz_bat{0}", System.Guid.randomUUID())));
// then
// reached second read replica from cores
CheckDataHasReplicatedToReadReplicas(cluster, numberOfNodes * 2);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldEventuallyPullTransactionAcrossReadReplicas() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldEventuallyPullTransactionAcrossReadReplicas()
{
// given
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: org.neo4j.causalclustering.discovery.Cluster<?> cluster = clusterRule.startCluster();
Cluster <object> cluster = ClusterRule.startCluster();
int numberOfNodesToCreate = 100;
cluster.CoreTx((db, tx) =>
{
Db.schema().constraintFor(label("Foo")).assertPropertyIsUnique("foobar").create();
tx.success();
});
createLabelledNodesWithProperty(cluster, numberOfNodesToCreate, label("Foo"), () => Pair.of("foobar", string.Format("baz_bat{0}", System.Guid.randomUUID())));
ReadReplica firstReadReplica = cluster.AddReadReplicaWithIdAndMonitors(101, new Monitors());
firstReadReplica.Start();
CheckDataHasReplicatedToReadReplicas(cluster, numberOfNodesToCreate);
foreach (CoreClusterMember coreClusterMember in cluster.CoreMembers())
{
coreClusterMember.DisableCatchupServer();
}
// when
upstreamFactory.Current = firstReadReplica;
ReadReplica secondReadReplica = cluster.AddReadReplicaWithId(202);
secondReadReplica.UpstreamDatabaseSelectionStrategy = "specific";
secondReadReplica.Start();
// then
CheckDataHasReplicatedToReadReplicas(cluster, numberOfNodesToCreate);
}
