//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldHandleSlaveWritingFirstAfterStoryCopy() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldHandleSlaveWritingFirstAfterStoryCopy()
{
// Given
ISet <long> expected = new HashSet <object>();
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
HighlyAvailableGraphDatabase master = cluster.Master;
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
// When
expected.Add(CreateOneNode(master));
cluster.Sync();
// ... crash the slave
File slaveStoreDirectory = cluster.GetDatabaseDir(slave);
ClusterManager.RepairKit shutdownSlave = cluster.Shutdown(slave);
deleteRecursively(slaveStoreDirectory);
// ... and slave copy store from master
slave = shutdownSlave.Repair();
// ... and first write after crash occurs on salve
expected.Add(CreateOneNode(slave));
cluster.Sync();
// Then
assertEquals(expected, CollectIds(master));
assertEquals(expected, CollectIds(slave));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCopyStoreFromMasterIfBranched() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldCopyStoreFromMasterIfBranched()
{
// GIVEN
File dir = _directory.directory();
ClusterManager clusterManager = _life.add(new ClusterManager.Builder(dir)
.withCluster(clusterOfSize(2)).build());
ClusterManager.ManagedCluster cluster = clusterManager.Cluster;
cluster.Await(allSeesAllAsAvailable());
CreateNode(cluster.Master, "A");
cluster.Sync();
// WHEN
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
File databaseDir = slave.DatabaseLayout().databaseDirectory();
ClusterManager.RepairKit starter = cluster.Shutdown(slave);
HighlyAvailableGraphDatabase master = cluster.Master;
CreateNode(master, "B1");
CreateNode(master, "C");
CreateNodeOffline(databaseDir, "B2");
slave = starter.Repair();
// THEN
cluster.Await(allSeesAllAsAvailable());
slave.BeginTx().close();
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void terminatedTransactionDoesNotForceUpdatePulling()
public virtual void TerminatedTransactionDoesNotForceUpdatePulling()
{
int testTxsOnMaster = 42;
ClusterManager.ManagedCluster cluster = ClusterRule.withSharedSetting(HaSettings.pull_interval, "0s").withSharedSetting(HaSettings.tx_push_factor, "0").startCluster();
HighlyAvailableGraphDatabase master = cluster.Master;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.ha.HighlyAvailableGraphDatabase slave = cluster.getAnySlave();
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
CreateNodeOn(master);
cluster.Sync();
long lastClosedTxIdOnMaster = LastClosedTxIdOn(master);
long lastClosedTxIdOnSlave = LastClosedTxIdOn(slave);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.CountDownLatch slaveTxStarted = new java.util.concurrent.CountDownLatch(1);
System.Threading.CountdownEvent slaveTxStarted = new System.Threading.CountdownEvent(1);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.CountDownLatch slaveShouldCommit = new java.util.concurrent.CountDownLatch(1);
System.Threading.CountdownEvent slaveShouldCommit = new System.Threading.CountdownEvent(1);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicReference<org.neo4j.graphdb.Transaction> slaveTx = new java.util.concurrent.atomic.AtomicReference<>();
AtomicReference <Transaction> slaveTx = new AtomicReference <Transaction>();
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: java.util.concurrent.Future<?> slaveCommit = java.util.concurrent.Executors.newSingleThreadExecutor().submit(() ->
Future <object> slaveCommit = Executors.newSingleThreadExecutor().submit(() =>
{
using (Transaction tx = slave.BeginTx())
{
slaveTx.set(tx);
slaveTxStarted.Signal();
Await(slaveShouldCommit);
tx.success();
}
});
Await(slaveTxStarted);
CreateNodesOn(master, testTxsOnMaster);
assertNotNull(slaveTx.get());
slaveTx.get().terminate();
slaveShouldCommit.Signal();
try
{
slaveCommit.get();
fail("Exception expected");
}
catch (Exception e)
{
assertThat(e, instanceOf(typeof(ExecutionException)));
assertThat(e.InnerException, instanceOf(typeof(TransientTransactionFailureException)));
}
assertEquals(lastClosedTxIdOnMaster + testTxsOnMaster, LastClosedTxIdOn(master));
assertEquals(lastClosedTxIdOnSlave, LastClosedTxIdOn(slave));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void lastTxCommitTimestampShouldBeUnknownAfterStartIfNoFiledOrLogsPresent() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void LastTxCommitTimestampShouldBeUnknownAfterStartIfNoFiledOrLogsPresent()
{
ClusterManager clusterManager = (new ClusterManager.Builder(TestDirectory.directory(TestName.MethodName))).withCluster(ClusterManager.clusterOfSize(3)).build();
try
{
clusterManager.Start();
ClusterManager.ManagedCluster cluster = clusterManager.Cluster;
cluster.Await(allSeesAllAsAvailable());
RunSomeTransactions(cluster.Master);
cluster.Sync();
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
DatabaseLayout databaseLayout = slave.DatabaseLayout();
ClusterManager.RepairKit slaveRepairKit = cluster.Shutdown(slave);
ClearLastTransactionCommitTimestampField(databaseLayout);
DeleteLogs(databaseLayout);
HighlyAvailableGraphDatabase repairedSlave = slaveRepairKit.Repair();
cluster.Await(allSeesAllAsAvailable());
assertEquals(Org.Neo4j.Kernel.impl.transaction.log.TransactionIdStore_Fields.UNKNOWN_TX_COMMIT_TIMESTAMP, LastCommittedTxTimestamp(repairedSlave));
}
finally
{
clusterManager.Stop();
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void lastTxCommitTimestampShouldGetInitializedOnSlaveIfNotPresent() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void LastTxCommitTimestampShouldGetInitializedOnSlaveIfNotPresent()
{
ClusterManager clusterManager = (new ClusterManager.Builder(TestDirectory.directory(TestName.MethodName))).withCluster(ClusterManager.clusterOfSize(3)).build();
try
{
clusterManager.Start();
ClusterManager.ManagedCluster cluster = clusterManager.Cluster;
cluster.Await(allSeesAllAsAvailable());
RunSomeTransactions(cluster.Master);
cluster.Sync();
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
DatabaseLayout databaseLayout = slave.DatabaseLayout();
ClusterManager.RepairKit slaveRepairKit = cluster.Shutdown(slave);
ClearLastTransactionCommitTimestampField(databaseLayout);
HighlyAvailableGraphDatabase repairedSlave = slaveRepairKit.Repair();
cluster.Await(allSeesAllAsAvailable());
assertEquals(LastCommittedTxTimestamp(cluster.Master), LastCommittedTxTimestamp(repairedSlave));
}
finally
{
clusterManager.Stop();
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCreateConstraintOnMaster()
public virtual void ShouldCreateConstraintOnMaster()
{
// given
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
HighlyAvailableGraphDatabase master = cluster.Master;
string type = type(0);
string key = key(0);
// when
using (Transaction tx = master.BeginTx())
{
CreateConstraint(master, type, key);
tx.Success();
}
cluster.Sync();
// then
foreach (HighlyAvailableGraphDatabase clusterMember in cluster.AllMembers)
{
using (Transaction tx = clusterMember.BeginTx())
{
ConstraintDefinition constraint = GetConstraint(clusterMember, type, key);
ValidateLabelOrRelationshipType(constraint, type);
assertEquals(key, single(constraint.PropertyKeys));
tx.Success();
}
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldRemoveConstraints()
public virtual void ShouldRemoveConstraints()
{
// given
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
HighlyAvailableGraphDatabase master = cluster.Master;
string type = type(2);
string key = key(2);
long constraintCountBefore;
long indexCountBefore;
using (Transaction tx = master.BeginTx())
{
constraintCountBefore = count(master.Schema().Constraints);
indexCountBefore = count(master.Schema().Indexes);
CreateConstraint(master, type, key);
tx.Success();
}
cluster.Sync();
// and given I have some data for the constraint
CreateEntityInTx(cluster.AnySlave, type, key, "Foo");
// when
using (Transaction tx = master.BeginTx())
{
GetConstraint(master, type, key).drop();
tx.Success();
}
cluster.Sync();
// then the constraint should be gone, and not be enforced anymore
foreach (HighlyAvailableGraphDatabase clusterMember in cluster.AllMembers)
{
using (Transaction tx = clusterMember.BeginTx())
{
assertNull(GetConstraint(clusterMember, type, key));
assertNull(GetIndex(clusterMember, type, key));
CreateConstraintViolation(clusterMember, type, key, "Foo");
tx.Success();
}
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void onlineSchemaIndicesOnMasterShouldBeBroughtOnlineOnSlavesAfterStoreCopy() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void OnlineSchemaIndicesOnMasterShouldBeBroughtOnlineOnSlavesAfterStoreCopy()
{
/*
* The master has an index that is online.
* Then a slave comes online and contacts the master to get copies of the store files.
* Because the index is online, it should be copied, and the slave should successfully bring the index online.
*/
// GIVEN
ControlledGraphDatabaseFactory dbFactory = new ControlledGraphDatabaseFactory();
ClusterManager.ManagedCluster cluster = ClusterRule.withDbFactory(dbFactory).withSharedSetting(GraphDatabaseSettings.default_schema_provider, _controlledProviderDescriptor.name()).startCluster();
cluster.Await(allSeesAllAsAvailable(), 120);
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
// All slaves in the cluster, except the one I care about, proceed as normal
ProceedAsNormalWithIndexPopulationOnAllSlavesExcept(dbFactory, cluster, slave);
// A slave is offline, and has no store files
ClusterManager.RepairKit slaveDown = BringSlaveOfflineAndRemoveStoreFiles(cluster, slave);
// And I create an index on the master, and wait for population to start
HighlyAvailableGraphDatabase master = cluster.Master;
IDictionary <object, Node> data = CreateSomeData(master);
CreateIndex(master);
dbFactory.AwaitPopulationStarted(master);
// And the population finishes
dbFactory.TriggerFinish(master);
IndexDefinition index;
using (Transaction tx = master.BeginTx())
{
index = single(master.Schema().Indexes);
AwaitIndexOnline(index, master, data);
tx.Success();
}
// WHEN the slave comes online after population has finished on the master
slave = slaveDown.Repair();
cluster.Await(allSeesAllAsAvailable());
cluster.Sync();
// THEN the index should work on the slave
dbFactory.TriggerFinish(slave);
using (Transaction tx = slave.BeginTx())
{
AwaitIndexOnline(index, slave, data);
tx.Success();
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void creatingIndexOnMasterShouldHaveSlavesBuildItAsWell() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void CreatingIndexOnMasterShouldHaveSlavesBuildItAsWell()
{
// GIVEN
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
HighlyAvailableGraphDatabase master = cluster.Master;
IDictionary <object, Node> data = CreateSomeData(master);
// WHEN
IndexDefinition index = CreateIndex(master);
cluster.Sync();
// THEN
AwaitIndexOnline(index, cluster, data);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void slavesTerminateOrReadConsistentDataWhenApplyingBatchLargerThanSafeZone() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void SlavesTerminateOrReadConsistentDataWhenApplyingBatchLargerThanSafeZone()
{
long safeZone = TimeUnit.MILLISECONDS.toSeconds(0);
ClusterRule.withSharedSetting(HaSettings.id_reuse_safe_zone_time, safeZone.ToString());
// given
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.ha.ClusterManager.ManagedCluster cluster = clusterRule.startCluster();
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
HighlyAvailableGraphDatabase master = cluster.Master;
// when
// ... slaves and master has node with long string property
long entityId = Action.createInitialEntity(master);
cluster.Sync();
// ... and property is removed on master
Action.removeProperties(master, entityId);
Thread.Sleep(100);
// ... and maintenance is called to make sure "safe" ids are freed to be reused
ForceMaintenance(master);
// ... and a new property is created on master that
Action.setNewProperties(master, entityId);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.ha.HighlyAvailableGraphDatabase slave = cluster.getAnySlave();
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
Race race = new Race();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicBoolean end = new java.util.concurrent.atomic.AtomicBoolean(false);
AtomicBoolean end = new AtomicBoolean(false);
for (int i = 0; i < READER_CONTESTANTS; i++)
{
race.AddContestant(ReadContestant(Action, entityId, slave, end));
}
race.AddContestant(PullUpdatesContestant(slave, end));
race.Go();
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Before public void setup() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void Setup()
{
// setup a cluster with some data and entries in log files in fully functional and shutdown state
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
try
{
cluster.Await(allSeesAllAsAvailable());
OldMaster = cluster.Master;
CreateSomeData(OldMaster);
cluster.Sync();
OldSlave1 = cluster.AnySlave;
OldSlave2 = cluster.GetAnySlave(OldSlave1);
}
finally
{
ClusterRule.shutdownCluster();
}
AssertAllStoreConsistent(cluster);
}
/// <summary>
/// Main difference to <seealso cref="shouldCopyStoreFromMasterIfBranched()"/> is that no instances are shut down
/// during the course of the test. This to test functionality of some internal components being restarted.
/// </summary>
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @SuppressWarnings("unchecked") @Test public void shouldCopyStoreFromMasterIfBranchedInLiveScenario() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldCopyStoreFromMasterIfBranchedInLiveScenario()
{
// GIVEN a cluster of 3, all having the same data (node A)
// thor is whoever is the master to begin with
// odin is whoever is picked as _the_ slave given thor as initial master
File storeDirectory = _directory.directory();
ClusterManager clusterManager = _life.add(new ClusterManager.Builder(storeDirectory)
.withSharedConfig(stringMap(HaSettings.tx_push_factor.name(), "0", HaSettings.pull_interval.name(), "0")).build());
ClusterManager.ManagedCluster cluster = clusterManager.Cluster;
cluster.Await(allSeesAllAsAvailable());
HighlyAvailableGraphDatabase thor = cluster.Master;
string indexName = "valhalla";
CreateNode(thor, "A", AndIndexInto(indexName));
cluster.Sync();
// WHEN creating a node B1 on thor (note the disabled cluster transaction propagation)
CreateNode(thor, "B1", AndIndexInto(indexName));
// and right after that failing the master so that it falls out of the cluster
HighlyAvailableGraphDatabase odin = cluster.AnySlave;
cluster.Info(format("%n ==== TAMPERING WITH " + thor + "'s CABLES ====%n"));
ClusterManager.RepairKit thorRepairKit = cluster.Fail(thor);
// try to create a transaction on odin until it succeeds
cluster.Await(ClusterManager.masterAvailable(thor));
cluster.Await(ClusterManager.memberThinksItIsRole(odin, HighAvailabilityModeSwitcher.MASTER));
assertTrue(odin.Master);
RetryOnTransactionFailure(odin, db => createNode(db, "B2", AndIndexInto(indexName)));
// perform transactions so that index files changes under the hood
ISet <File> odinLuceneFilesBefore = Iterables.asSet(GatherLuceneFiles(odin, indexName));
for (char prefix = 'C'; !Changed(odinLuceneFilesBefore, Iterables.asSet(GatherLuceneFiles(odin, indexName))); prefix++)
{
char fixedPrefix = prefix;
RetryOnTransactionFailure(odin, db => createNodes(odin, fixedPrefix.ToString(), 10_000, AndIndexInto(indexName)));
cluster.Force(); // Force will most likely cause lucene explicit indexes to commit and change file structure
}
// so anyways, when thor comes back into the cluster
cluster.Info(format("%n ==== REPAIRING CABLES ====%n"));
cluster.Await(memberThinksItIsRole(thor, UNKNOWN));
BranchMonitor thorHasBranched = InstallBranchedDataMonitor(cluster.GetMonitorsByDatabase(thor));
thorRepairKit.Repair();
cluster.Await(memberThinksItIsRole(thor, SLAVE));
cluster.Await(memberThinksItIsRole(odin, MASTER));
cluster.Await(allSeesAllAsAvailable());
assertFalse(thor.Master);
assertTrue("No store-copy performed", thorHasBranched.CopyCompleted);
assertTrue("Store-copy unsuccessful", thorHasBranched.CopySuccessful);
// Now do some more transactions on current master (odin) and have thor pull those
for (int i = 0; i < 3; i++)
{
int ii = i;
RetryOnTransactionFailure(odin, db => createNodes(odin, ("" + ii).ToString(), 10, AndIndexInto(indexName)));
cluster.Sync();
cluster.Force();
}
// THEN thor should be a slave, having copied a store from master and good to go
assertFalse(HasNode(thor, "B1"));
assertTrue(HasNode(thor, "B2"));
assertTrue(HasNode(thor, "C-0"));
assertTrue(HasNode(thor, "0-0"));
assertTrue(HasNode(odin, "0-0"));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void populatingSchemaIndicesOnMasterShouldBeBroughtOnlineOnSlavesAfterStoreCopy() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void PopulatingSchemaIndicesOnMasterShouldBeBroughtOnlineOnSlavesAfterStoreCopy()
{
/*
* The master has an index that is currently populating.
* Then a slave comes online and contacts the master to get copies of the store files.
* Because the index is still populating, it won't be copied. Instead the slave will build its own.
* We want to observe that the slave builds an index that eventually comes online.
*/
// GIVEN
ControlledGraphDatabaseFactory dbFactory = new ControlledGraphDatabaseFactory(_isMaster);
ClusterManager.ManagedCluster cluster = ClusterRule.withDbFactory(dbFactory).withSharedSetting(GraphDatabaseSettings.default_schema_provider, NativeLuceneFusionIndexProviderFactory20.DESCRIPTOR.name()).startCluster();
try
{
cluster.Await(allSeesAllAsAvailable());
HighlyAvailableGraphDatabase slave = cluster.AnySlave;
// A slave is offline, and has no store files
ClusterManager.RepairKit slaveDown = BringSlaveOfflineAndRemoveStoreFiles(cluster, slave);
// And I create an index on the master, and wait for population to start
HighlyAvailableGraphDatabase master = cluster.Master;
IDictionary <object, Node> data = CreateSomeData(master);
CreateIndex(master);
dbFactory.AwaitPopulationStarted(master);
// WHEN the slave comes online before population has finished on the master
slave = slaveDown.Repair();
cluster.Await(allSeesAllAsAvailable(), 180);
cluster.Sync();
// THEN, population should finish successfully on both master and slave
dbFactory.TriggerFinish(master);
// Check master
IndexDefinition index;
using (Transaction tx = master.BeginTx())
{
index = single(master.Schema().Indexes);
AwaitIndexOnline(index, master, data);
tx.Success();
}
// Check slave
using (Transaction tx = slave.BeginTx())
{
AwaitIndexOnline(index, slave, data);
tx.Success();
}
}
finally
{
foreach (HighlyAvailableGraphDatabase db in cluster.AllMembers)
{
dbFactory.TriggerFinish(db);
}
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void oneRound() throws Throwable
private void OneRound()
{
// GIVEN a cluster and a node
const string key = "key";
ClusterManager.ManagedCluster cluster = ClusterRule.startCluster();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.graphdb.GraphDatabaseService master = cluster.getMaster();
GraphDatabaseService master = cluster.Master;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final long nodeId = createNode(master);
long nodeId = CreateNode(master);
cluster.Sync();
// and a bunch of workers contending on that node, each changing it
Workers <ThreadStart> transactors = new Workers <ThreadStart>("Transactors");
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicInteger successes = new java.util.concurrent.atomic.AtomicInteger();
AtomicInteger successes = new AtomicInteger();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicBoolean end = new java.util.concurrent.atomic.AtomicBoolean();
AtomicBoolean end = new AtomicBoolean();
for (int i = 0; i < 10; i++)
{
transactors.Start(() =>
{
Random random = ThreadLocalRandom.current();
while (!end.get())
{
bool committed = true;
try
{
using (Transaction tx = master.BeginTx())
{
Node node = master.GetNodeById(nodeId);
// Acquiring lock, read int property value, increment, set incremented int property
// should not break under any circumstances.
tx.acquireWriteLock(node);
node.setProperty(key, ( int? )node.getProperty(key, 0) + 1);
// Throw in relationship for good measure
node.createRelationshipTo(master.CreateNode(), TEST);
Thread.Sleep(random.Next(1_000));
tx.success();
}
}
catch (Exception)
{
// It's OK
committed = false;
}
if (committed)
{
successes.incrementAndGet();
}
}
});
}
// WHEN entering a period of induced cluster instabilities
ReelectTheSameMasterMakingItGoToPendingAndBack(cluster);
// ... letting transactions run a bit after the role switch as well.
long targetSuccesses = successes.get() + 20;
while (successes.get() < targetSuccesses)
{
Thread.Sleep(100);
}
end.set(true);
transactors.AwaitAndThrowOnError();
// THEN verify that the count is equal to the number of successful transactions
assertEquals(successes.get(), GetNodePropertyValue(master, nodeId, key));
}
private static void AssertNodeExists(ClusterManager.ManagedCluster cluster, object value)
{
cluster.Sync();
AssertNodeExists(cluster.Master, value);
}
private void CreateNode(ClusterManager.ManagedCluster cluster)
{
CreateNode(cluster.Master);
cluster.Sync();
}
