public void Client()
{
string home = testHome + "/Client";
Configuration.ClearDir(home);
clientStartSignal.WaitOne();
Console.WriteLine("Client: Join the replication");
// Open a environment.
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.LockTimeout = 50000;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepmgrSitesConfig.Add(new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[0].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[0].Port = ports[1];
cfg.RepSystemCfg.RepmgrSitesConfig[0].LocalSite = true;
cfg.RepSystemCfg.Priority = 10;
cfg.RepSystemCfg.RepmgrSitesConfig.Add(new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[1].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[1].Port = ports[0];
cfg.RepSystemCfg.RepmgrSitesConfig[1].Helper = true;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
// Start a client site with replication manager.
env.RepMgrStartClient(3, false);
// Leave enough time to sync.
Thread.Sleep(20000);
// Open database.
BTreeDatabaseConfig dbConfig =
new BTreeDatabaseConfig();
dbConfig.Creation = CreatePolicy.NEVER;
dbConfig.AutoCommit = true;
dbConfig.Env = env;
dbConfig.PageSize = 512;
BTreeDatabase db = BTreeDatabase.Open("rep.db",
dbConfig);
// Write data into database.
Console.WriteLine("Client: Start reading data #1.");
for (int i = 0; i < 5; i++)
{
db.GetBoth(new DatabaseEntry(
BitConverter.GetBytes(i)), new DatabaseEntry(
BitConverter.GetBytes(i)));
}
// Leave sometime for client to read new data from master.
Thread.Sleep(20000);
/*
* Read the data. All data exists in master site should
* appear in the client site.
*/
Console.WriteLine("Client: Start reading data #2.");
for (int i = 10; i < 15; i++)
{
db.GetBoth(new DatabaseEntry(
BitConverter.GetBytes(i)), new DatabaseEntry(
BitConverter.GetBytes(i)));
}
// Get the latest replication subsystem statistics.
ReplicationStats repStats = env.ReplicationSystemStats();
Assert.IsTrue(repStats.ClientStartupComplete);
Assert.LessOrEqual(0, repStats.DuplicateLogRecords);
Assert.LessOrEqual(0, repStats.EnvID);
Assert.LessOrEqual(0, repStats.NextPage);
Assert.LessOrEqual(0, repStats.ReceivedPages);
Assert.AreEqual(1, repStats.Status);
// Close all.
db.Close(false);
env.LogFlush();
env.Close();
Console.WriteLine(
"Client: All data is read. Leaving the replication");
// The master is closed after client's close.
masterCloseSignal.Set();
}
public void UnstableMaster()
{
string home = testHome + "/UnstableMaster";
Configuration.ClearDir(home);
// Open environment with replication configuration.
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepmgrSitesConfig.Add(
new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[0].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[0].Port = ports[0];
cfg.RepSystemCfg.RepmgrSitesConfig[0].LocalSite = true;
cfg.RepSystemCfg.Priority = 200;
cfg.RepSystemCfg.ElectionRetry = 10;
cfg.RepSystemCfg.RepMgrAckPolicy = AckPolicy.ALL;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
try {
// Start as master site.
env.RepMgrStartMaster(3);
Console.WriteLine(
"Master: Create a new repmgr group");
// Client1 could start now.
client1StartSignal.Set();
// Wait for initialization of all clients.
if (!masterLeaveSignal.WaitOne(50000))
{
throw new TestException();
}
// Check remote sites are valid.
foreach (RepMgrSite site in
env.RepMgrRemoteSites)
{
Assert.AreEqual("127.0.0.1",
site.Address.Host);
Assert.IsTrue(ports.Contains(
site.Address.Port));
}
// Close the current master.
Console.WriteLine("Master: Unexpected leave.");
env.LogFlush();
} catch (Exception e) {
Console.WriteLine(e.Message);
} finally {
env.Close();
/*
* Clean up electionDone and startUpDone to
* check election for new master and start-up
* done on clients.
*/
electionDone = false;
startUpDone = 0;
/*
* Need to set signals for three times, each
* site would wait for one.
*/
for (int i = 0; i < 3; i++)
{
clientsElectionSignal.Set();
}
}
}
public void StableClient(string home, int clientIdx,
uint localPort, uint priority,
uint helperPort, uint peerPort,
EventWaitHandle notifyHandle)
{
int timeout = 0;
Configuration.ClearDir(home);
Console.WriteLine(
"Client{0}: Join the replication", clientIdx);
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.Create = true;
cfg.FreeThreaded = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.UseLocking = true;
cfg.UseMPool = true;
cfg.UseTxns = true;
cfg.UseReplication = true;
cfg.UseLogging = true;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepmgrSitesConfig.Add(
new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[0].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[0].Port = localPort;
cfg.RepSystemCfg.RepmgrSitesConfig[0].LocalSite = true;
cfg.RepSystemCfg.Priority = priority;
cfg.RepSystemCfg.RepmgrSitesConfig.Add(
new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[1].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[1].Port = helperPort;
cfg.RepSystemCfg.RepmgrSitesConfig[1].Helper = true;
cfg.RepSystemCfg.ElectionRetry = 100;
cfg.RepSystemCfg.RepMgrAckPolicy = AckPolicy.NONE;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
try {
// Start the client.
Assert.AreEqual(clientIdx - 1, startUpDone);
env.RepMgrStartClient(3, false);
while (startUpDone < clientIdx)
{
if (timeout > 10)
{
throw new TestException();
}
timeout++;
Thread.Sleep(1000);
}
ReplicationStats repStats =
env.ReplicationSystemStats();
Assert.LessOrEqual(0, repStats.Elections);
Assert.LessOrEqual(0,
repStats.ElectionTiebreaker);
Assert.LessOrEqual(0, repStats.ElectionTimeSec +
repStats.ElectionTimeUSec);
Assert.LessOrEqual(0, repStats.MasterChanges);
Assert.LessOrEqual(0, repStats.NewSiteMessages);
Assert.LessOrEqual(0,
repStats.ReceivedLogRecords);
Assert.LessOrEqual(0, repStats.ReceivedMessages);
Assert.LessOrEqual(0, repStats.ReceivedPages);
Assert.GreaterOrEqual(clientIdx + 1,
repStats.RegisteredSitesNeeded);
Assert.LessOrEqual(0, repStats.Sites);
// Notify the next event.
notifyHandle.Set();
// Wait for master's leave.
if (!clientsElectionSignal.WaitOne(50000))
{
throw new TestException();
}
timeout = 0;
while (!electionDone)
{
if (timeout > 10)
{
throw new TestException();
}
timeout++;
Thread.Sleep(1000);
}
env.LogFlush();
timeout = 0;
// Start up done event happens on client.
while (startUpDone < 2)
{
if (timeout > 10)
{
throw new TestException();
}
timeout++;
Thread.Sleep(1000);
}
Thread.Sleep((int)priority * 100);
} catch (Exception e) {
Console.WriteLine(e.Message);
} finally {
env.Close();
Console.WriteLine(
"Client{0}: Leaving the replication",
clientIdx);
}
}
public void Master()
{
string home = testHome + "/Master";
string dbName = "rep.db";
Configuration.ClearDir(home);
/*
* Configure and open environment with replication
* application.
*/
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepmgrSitesConfig.Add(new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[0].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[0].Port = ports[0];
cfg.RepSystemCfg.RepmgrSitesConfig[0].LocalSite = true;
cfg.RepSystemCfg.Priority = 100;
cfg.RepSystemCfg.BulkTransfer = true;
cfg.RepSystemCfg.AckTimeout = 2000;
cfg.RepSystemCfg.BulkTransfer = true;
cfg.RepSystemCfg.CheckpointDelay = 1500;
cfg.RepSystemCfg.Clockskew(102, 100);
cfg.RepSystemCfg.ConnectionRetry = 10;
cfg.RepSystemCfg.DelayClientSync = false;
cfg.RepSystemCfg.ElectionRetry = 5;
cfg.RepSystemCfg.ElectionTimeout = 3000;
cfg.RepSystemCfg.FullElectionTimeout = 5000;
cfg.RepSystemCfg.HeartbeatMonitor = 100;
cfg.RepSystemCfg.HeartbeatSend = 10;
cfg.RepSystemCfg.LeaseTimeout = 1300;
cfg.RepSystemCfg.AutoInit = true;
cfg.RepSystemCfg.NoBlocking = false;
cfg.RepSystemCfg.RepMgrAckPolicy =
AckPolicy.ALL_PEERS;
cfg.RepSystemCfg.RetransmissionRequest(10, 100);
cfg.RepSystemCfg.Strict2Site = true;
cfg.RepSystemCfg.UseMasterLeases = false;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
// Get initial replication stats.
ReplicationStats repStats = env.ReplicationSystemStats();
env.PrintReplicationSystemStats();
Assert.AreEqual(100, repStats.EnvPriority);
Assert.AreEqual(1,
repStats.CurrentElectionGenerationNumber);
Assert.AreEqual(0, repStats.CurrentGenerationNumber);
Assert.AreEqual(0, repStats.AppliedTransactions);
Assert.AreEqual(0, repStats.ElectionDataGeneration);
// Start a master site with replication manager.
env.RepMgrStartMaster(3);
// Open a btree database and write some data.
Transaction txn = env.BeginTransaction();
BTreeDatabaseConfig dbConfig =
new BTreeDatabaseConfig();
dbConfig.Creation = CreatePolicy.IF_NEEDED;
dbConfig.Env = env;
dbConfig.PageSize = 512;
BTreeDatabase db = BTreeDatabase.Open(dbName,
dbConfig, txn);
txn.Commit();
txn = env.BeginTransaction();
for (int i = 0; i < 5; i++)
{
db.Put(new DatabaseEntry(BitConverter.GetBytes(i)),
new DatabaseEntry(BitConverter.GetBytes(i)), txn);
}
txn.Commit();
Console.WriteLine(
"Master: Finished initialization and data#1.");
// Client site could enter now.
clientStartSignal.Set();
Console.WriteLine(
"Master: Wait for Client to join and get #1.");
Console.WriteLine("...");
// Put some new data into master site.
txn = env.BeginTransaction();
for (int i = 10; i < 15; i++)
{
db.Put(new DatabaseEntry(BitConverter.GetBytes(i)),
new DatabaseEntry(BitConverter.GetBytes(i)),
txn);
}
txn.Commit();
Console.WriteLine(
"Master: Write something new, data #2.");
Console.WriteLine("Master: Wait for client to read #2...");
// Get the stats.
repStats = env.ReplicationSystemStats(true);
env.PrintReplicationSystemStats();
Assert.LessOrEqual(0, repStats.AppliedTransactions);
Assert.LessOrEqual(0, repStats.AwaitedLSN.LogFileNumber);
Assert.LessOrEqual(0, repStats.AwaitedLSN.Offset);
Assert.LessOrEqual(0, repStats.AwaitedPage);
Assert.LessOrEqual(0, repStats.BadGenerationMessages);
Assert.LessOrEqual(0, repStats.BulkBufferFills);
Assert.LessOrEqual(0, repStats.BulkBufferOverflows);
Assert.LessOrEqual(0, repStats.BulkBufferTransfers);
Assert.LessOrEqual(0, repStats.BulkRecordsStored);
Assert.LessOrEqual(0, repStats.ClientServiceRequests);
Assert.LessOrEqual(0, repStats.ClientServiceRequestsMissing);
Assert.IsInstanceOf(typeof(bool), repStats.ClientStartupComplete);
Assert.AreEqual(2, repStats.CurrentElectionGenerationNumber);
Assert.AreEqual(1, repStats.CurrentGenerationNumber);
Assert.LessOrEqual(0, repStats.CurrentQueuedLogRecords);
Assert.LessOrEqual(0, repStats.CurrentWinner);
Assert.LessOrEqual(0, repStats.CurrentWinnerMaxLSN.LogFileNumber);
Assert.LessOrEqual(0, repStats.CurrentWinnerMaxLSN.Offset);
Assert.LessOrEqual(0, repStats.DuplicateLogRecords);
Assert.LessOrEqual(0, repStats.DuplicatePages);
Assert.LessOrEqual(0, repStats.DupMasters);
Assert.LessOrEqual(0, repStats.ElectionGenerationNumber);
Assert.LessOrEqual(0, repStats.ElectionPriority);
Assert.LessOrEqual(0, repStats.Elections);
Assert.LessOrEqual(0, repStats.ElectionStatus);
Assert.LessOrEqual(0, repStats.ElectionsWon);
Assert.LessOrEqual(0, repStats.ElectionTiebreaker);
Assert.LessOrEqual(0, repStats.ElectionTimeSec);
Assert.LessOrEqual(0, repStats.ElectionTimeUSec);
Assert.AreEqual(repStats.EnvID, repStats.MasterEnvID);
Assert.LessOrEqual(0, repStats.EnvPriority);
Assert.LessOrEqual(0, repStats.FailedMessageSends);
Assert.LessOrEqual(0, repStats.ForcedRerequests);
Assert.LessOrEqual(0, repStats.IgnoredMessages);
Assert.LessOrEqual(0, repStats.MasterChanges);
Assert.LessOrEqual(0, repStats.MasterEnvID);
Assert.LessOrEqual(0, repStats.MaxLeaseSec);
Assert.LessOrEqual(0, repStats.MaxLeaseUSec);
Assert.LessOrEqual(0, repStats.MaxPermanentLSN.Offset);
Assert.LessOrEqual(0, repStats.MaxQueuedLogRecords);
Assert.LessOrEqual(0, repStats.MessagesSent);
Assert.LessOrEqual(0, repStats.MissedLogRecords);
Assert.LessOrEqual(0, repStats.MissedPages);
Assert.LessOrEqual(0, repStats.NewSiteMessages);
Assert.LessOrEqual(repStats.MaxPermanentLSN.LogFileNumber,
repStats.NextLSN.LogFileNumber);
if (repStats.MaxPermanentLSN.LogFileNumber ==
repStats.NextLSN.LogFileNumber)
{
Assert.Less(repStats.MaxPermanentLSN.Offset,
repStats.NextLSN.Offset);
}
Assert.LessOrEqual(0, repStats.NextPage);
Assert.LessOrEqual(0, repStats.Outdated);
Assert.LessOrEqual(0, repStats.QueuedLogRecords);
Assert.LessOrEqual(0, repStats.ReceivedLogRecords);
Assert.LessOrEqual(0, repStats.ReceivedMessages);
Assert.LessOrEqual(0, repStats.ReceivedPages);
Assert.LessOrEqual(0, repStats.RegisteredSites);
Assert.LessOrEqual(0, repStats.RegisteredSitesNeeded);
Assert.LessOrEqual(0, repStats.Sites);
Assert.LessOrEqual(0, repStats.StartSyncMessagesDelayed);
Assert.AreEqual(2, repStats.Status);
Assert.LessOrEqual(0, repStats.Throttled);
Assert.LessOrEqual(0, repStats.Votes);
// Get replication manager statistics.
RepMgrStats repMgrStats = env.RepMgrSystemStats(true);
Assert.AreEqual(0, repMgrStats.AutoTakeovers);
Assert.LessOrEqual(0, repMgrStats.DroppedConnections);
Assert.LessOrEqual(0, repMgrStats.DroppedMessages);
Assert.LessOrEqual(0, repMgrStats.ElectionThreads);
Assert.LessOrEqual(0, repMgrStats.FailedConnections);
Assert.LessOrEqual(0, repMgrStats.FailedMessages);
Assert.Less(0, repMgrStats.MaxElectionThreads);
Assert.LessOrEqual(0, repMgrStats.QueuedMessages);
// Print them out.
env.PrintRepMgrSystemStats();
// Wait until client has finished reading.
masterCloseSignal.WaitOne();
Console.WriteLine("Master: Leave as well.");
// Close all.
db.Close(false);
env.LogFlush();
env.Close();
}
public void StableClient3()
{
string home = testHome + "/StableClient3";
Configuration.ClearDir(home);
client3StartSignal.WaitOne();
Console.WriteLine("Client3: Join the replication");
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.LockTimeout = 50000;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepMgrLocalSite =
new ReplicationHostAddress("127.0.0.1", 5888);
cfg.RepSystemCfg.Priority = 80;
cfg.RepSystemCfg.AddRemoteSite(
new ReplicationHostAddress("127.0.0.1", 8888), false);
cfg.RepSystemCfg.AddRemoteSite(
new ReplicationHostAddress("127.0.0.1", 6888), true);
cfg.RepSystemCfg.NSites = 4;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
cfg.RepSystemCfg.ElectionRetry = 10;
cfg.RepSystemCfg.RepMgrAckPolicy = AckPolicy.QUORUM;
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
env.RepMgrStartClient(3, false);
// Leave enough time to sync with master.
Thread.Sleep(20000);
// The current client site is fully initialized.
client3ReadySignal.Set();
// Wait for master's leave signal.
masterLeaveSignal.WaitOne();
/*
* Set the master's leave signal so that other clients
* could be informed.
*/
masterLeaveSignal.Set();
/*
* Master will leave the replication after all clients'
* initialization. Leave sometime for master to leave
* and for clients elect.
*/
Thread.Sleep(5000);
ReplicationStats repStats = env.ReplicationSystemStats();
Assert.LessOrEqual(0, repStats.Elections);
Assert.LessOrEqual(0, repStats.ElectionTiebreaker);
Assert.LessOrEqual(0,
repStats.ElectionTimeSec + repStats.ElectionTimeUSec);
Assert.LessOrEqual(0, repStats.MasterChanges);
Assert.LessOrEqual(0, repStats.NewSiteMessages);
Assert.LessOrEqual(0, repStats.ReceivedLogRecords);
Assert.LessOrEqual(0, repStats.ReceivedMessages);
Assert.LessOrEqual(0, repStats.ReceivedPages);
Assert.GreaterOrEqual(4, repStats.RegisteredSitesNeeded);
Assert.LessOrEqual(0, repStats.Sites);
/*
* Client 3 will be the new master. The Elected master should wait
* until all other clients leave.
*/
Thread.Sleep(10000);
env.LogFlush();
env.Close();
Console.WriteLine("Client3: Leaving the replication");
}
public void StableClient2()
{
string home = testHome + "/StableClient2";
Configuration.ClearDir(home);
client2StartSignal.WaitOne();
Console.WriteLine("Client2: Join the replication");
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.LockTimeout = 50000;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepMgrLocalSite =
new ReplicationHostAddress("127.0.0.1", 6888);
cfg.RepSystemCfg.Priority = 20;
cfg.RepSystemCfg.AddRemoteSite(
new ReplicationHostAddress("127.0.0.1", 8888), false);
cfg.RepSystemCfg.AddRemoteSite(
new ReplicationHostAddress("127.0.0.1", 7888), true);
cfg.RepSystemCfg.NSites = 4;
cfg.RepSystemCfg.ElectionRetry = 10;
cfg.RepSystemCfg.RepMgrAckPolicy =
AckPolicy.ONE_PEER;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
// Start the client who will raise election if no master.
env.RepMgrStartClient(3, true);
// Leave enough time to sync.
Thread.Sleep(20000);
// The current client site is fully initialized.
client2ReadySignal.Set();
// Wait for master's leave signal.
masterLeaveSignal.WaitOne();
/*
* Set the master's leave signal so that other clients
* could be informed.
*/
masterLeaveSignal.Set();
// Leave sometime for client to hold election.
Thread.Sleep(5000);
env.LogFlush();
env.Close();
Console.WriteLine("Client2: Leaving the replication");
}
public void UnstableMaster()
{
string home = testHome + "/UnstableMaster";
Configuration.ClearDir(home);
// Open environment with replication configuration.
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepMgrLocalSite =
new ReplicationHostAddress("127.0.0.1", 8888);
cfg.RepSystemCfg.Priority = 200;
cfg.RepSystemCfg.NSites = 4;
cfg.RepSystemCfg.ElectionRetry = 10;
cfg.RepSystemCfg.RepMgrAckPolicy = AckPolicy.ALL;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
// Start as master site.
env.RepMgrStartMaster(3);
Console.WriteLine("Master: Finish initialization");
// Notify clients to join.
client1StartSignal.Set();
client2StartSignal.Set();
client3StartSignal.Set();
// Wait for initialization of all clients.
client1ReadySignal.WaitOne();
client2ReadySignal.WaitOne();
client3ReadySignal.WaitOne();
List <uint> ports = new List <uint>();
ports.Add(5888);
ports.Add(6888);
ports.Add(7888);
foreach (RepMgrSite site in env.RepMgrRemoteSites)
{
Assert.AreEqual("127.0.0.1", site.Address.Host);
Assert.IsTrue(ports.Contains(site.Address.Port));
Assert.Greater(4, site.EId);
Assert.IsTrue(site.isConnected);
}
// After all of them are ready, close the current master.
Console.WriteLine("Master: Unexpected leave.");
env.LogFlush();
env.Close();
masterLeaveSignal.Set();
}
public void StableClient1()
{
string home = testHome + "/StableClient1";
Configuration.ClearDir(home);
// Get notification from master and start the #1 client.
client1StartSignal.WaitOne();
Console.WriteLine("Client1: Join the replication");
// Open the environment.
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.LockTimeout = 50000;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepMgrLocalSite =
new ReplicationHostAddress("127.0.0.1", 7888);
cfg.RepSystemCfg.Priority = 10;
cfg.RepSystemCfg.AddRemoteSite(
new ReplicationHostAddress("127.0.0.1", 8888), false);
cfg.RepSystemCfg.AddRemoteSite(
new ReplicationHostAddress("127.0.0.1", 5888), true);
cfg.RepSystemCfg.NSites = 4;
cfg.RepSystemCfg.ElectionRetry = 10;
cfg.RepSystemCfg.RepMgrAckPolicy = AckPolicy.NONE;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
// Start the client who won't raise any election.
env.RepMgrStartClient(3, false);
// Leave enough time to sync.
Thread.Sleep(20000);
// The current client site is fully initialized.
client1ReadySignal.Set();
foreach (RepMgrSite site in env.RepMgrRemoteSites)
{
if (site.Address.Port == 5888)
{
Assert.IsTrue(site.isPeer);
}
else
{
Assert.IsFalse(site.isPeer);
}
}
// Wait for master's leave signal.
masterLeaveSignal.WaitOne();
/*
* Set the master's leave signal so that other clients
* could be informed.
*/
masterLeaveSignal.Set();
// Leave sometime for client to hold election.
Thread.Sleep(10000);
env.LogFlush();
env.Close();
Console.WriteLine("Client1: Leaving the replication");
}
public void StableClient1()
{
string home = testHome + "/StableClient1";
Configuration.ClearDir(home);
// Get notification from master and start the #1 client.
client1StartSignal.WaitOne();
Console.WriteLine("Client1: Join the replication");
// Open the environment.
DatabaseEnvironmentConfig cfg =
new DatabaseEnvironmentConfig();
cfg.UseReplication = true;
cfg.MPoolSystemCfg = new MPoolConfig();
cfg.MPoolSystemCfg.CacheSize =
new CacheInfo(0, 20485760, 1);
cfg.UseLocking = true;
cfg.UseTxns = true;
cfg.UseMPool = true;
cfg.Create = true;
cfg.UseLogging = true;
cfg.RunRecovery = true;
cfg.TxnNoSync = true;
cfg.FreeThreaded = true;
cfg.LockTimeout = 50000;
cfg.RepSystemCfg = new ReplicationConfig();
cfg.RepSystemCfg.RepmgrSitesConfig.Add(new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[0].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[0].Port = ports[1];
cfg.RepSystemCfg.RepmgrSitesConfig[0].LocalSite = true;
cfg.RepSystemCfg.Priority = 10;
cfg.RepSystemCfg.RepmgrSitesConfig.Add(new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[1] = new DbSiteConfig();
cfg.RepSystemCfg.RepmgrSitesConfig[1].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[1].Port = ports[0];
cfg.RepSystemCfg.RepmgrSitesConfig[1].Helper = true;
cfg.RepSystemCfg.RepmgrSitesConfig.Add(new DbSiteConfig());
cfg.RepSystemCfg.RepmgrSitesConfig[2] = new DbSiteConfig();
cfg.RepSystemCfg.RepmgrSitesConfig[2].Host = "127.0.0.1";
cfg.RepSystemCfg.RepmgrSitesConfig[2].Port = ports[3];
cfg.RepSystemCfg.RepmgrSitesConfig[2].Peer = true;
cfg.RepSystemCfg.ElectionRetry = 10;
cfg.RepSystemCfg.RepMgrAckPolicy = AckPolicy.NONE;
cfg.EventNotify = new EventNotifyDelegate(stuffHappened);
DatabaseEnvironment env = DatabaseEnvironment.Open(
home, cfg);
env.DeadlockResolution = DeadlockPolicy.DEFAULT;
// Start the client who won't raise any election.
env.RepMgrStartClient(3, false);
// Leave enough time to sync.
Thread.Sleep(20000);
// Wait for master's leave signal.
masterLeaveSignal.WaitOne();
/*
* Set the master's leave signal so that other clients
* could be informed.
*/
masterLeaveSignal.Set();
// Leave sometime for client to hold election.
Thread.Sleep(10000);
env.LogFlush();
env.Close();
Console.WriteLine("Client1: Leaving the replication");
}