public void CreateDataWithBackupServer()
 {
   int loops = 30000;
   int j;
   using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
   {
     Man aMan = null;
     Woman aWoman = null;
     const bool isBackupLocation = true;
     session.BeginUpdate();
     // we need to have backup locations special since server is not supposed to do encryption or compression
     DatabaseLocation backupLocation = new DatabaseLocation(backupHost, backupDir, backupLocationStartDbNum, UInt32.MaxValue, session,
       PageInfo.compressionKind.LZ4, PageInfo.encryptionKind.noEncryption, isBackupLocation, session.DatabaseLocations.Default());
     session.NewLocation(backupLocation);
     session.Commit();
     session.BeginUpdate();
     for (j = 1; j <= loops; j++)
     {
       aMan = new Man(null, aMan, DateTime.Now);
       session.Persist(aMan);
       aWoman = new Woman(aMan, aWoman);
       session.Persist(aWoman);
       aMan.m_spouse = new VelocityDb.WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
       if (j % 1000000 == 0)
         Console.WriteLine("Loop # " + j);
     }
     UInt64 id = aWoman.Id;
     Console.WriteLine("Commit, done Loop # " + j);
     session.Commit();
   }
 }
        public void CreateDataWithBackupServer()
        {
            int loops = 30000;
            int j;

            using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
            {
                Man        aMan             = null;
                Woman      aWoman           = null;
                const bool isBackupLocation = true;
                session.BeginUpdate();
                // we need to have backup locations special since server is not supposed to do encryption or compression
                DatabaseLocation backupLocation = new DatabaseLocation(backupHost, backupDir, backupLocationStartDbNum, UInt32.MaxValue, session,
                                                                       PageInfo.compressionKind.LZ4, PageInfo.encryptionKind.noEncryption, isBackupLocation, session.DatabaseLocations.Default());
                session.NewLocation(backupLocation);
                session.Commit();
                session.BeginUpdate();
                for (j = 1; j <= loops; j++)
                {
                    aMan = new Man(null, aMan, DateTime.Now);
                    session.Persist(aMan);
                    aWoman = new Woman(aMan, aWoman);
                    session.Persist(aWoman);
                    aMan.m_spouse = new VelocityDb.WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000000 == 0)
                    {
                        Console.WriteLine("Loop # " + j);
                    }
                }
                UInt64 id = aWoman.Id;
                Console.WriteLine("Commit, done Loop # " + j);
                session.Commit();
            }
        }
Exemple #3
0
 public void schemaUpdateMultipleSessions()
 {
     Assert.Throws <OptimisticLockingFailed>(() =>
     {
         using (ServerClientSession session = new ServerClientSession(systemDir))
         {
             session.BeginUpdate();
             Placement place = new Placement(555, 1, 1, 10, 10);
             Simple1 s1      = new Simple1(1);
             s1.Persist(place, session);
             s1 = null;
             using (ServerClientSession session2 = new ServerClientSession(systemDir))
             {
                 Placement place2 = new Placement(556, 1, 1, 10, 10);
                 session2.BeginUpdate();
                 Simple2 s2 = new Simple2(2);
                 s2.Persist(place2, session2);
                 s2 = null;
                 session.Commit();
                 session2.Commit(); // optemistic locking will fail due to session2 working with a stale schema (not the one updated by session 1)
                 session.BeginUpdate();
                 s1 = (Simple1)session.Open(555, 1, 1, false);
                 s2 = (Simple2)session.Open(556, 1, 1, false);
                 session.Commit();
                 session2.BeginUpdate();
                 s1 = (Simple1)session2.Open(555, 1, 1, false);
                 s2 = (Simple2)session2.Open(556, 1, 1, false);
                 session2.Commit();
             }
         }
     });
 }
 public void schemaUpdateMultipleSessions()
 {
   using (ServerClientSession session = new ServerClientSession(systemDir))
   {
     session.BeginUpdate();
     Placement place = new Placement(555, 1, 1, 10, 10);
     Simple1 s1 = new Simple1(1);
     s1.Persist(place, session);
     s1 = null;
     using (ServerClientSession session2 = new ServerClientSession(systemDir))
     {
       Placement place2 = new Placement(556, 1, 1, 10, 10);
       session2.BeginUpdate();
       Simple2 s2 = new Simple2(2);
       s2.Persist(place2, session2);
       s2 = null;
       session.Commit();
       session2.Commit(); // optemistic locking will fail due to session2 working with a stale schema (not the one updated by session 1)
       session.BeginUpdate();
       s1 = (Simple1)session.Open(555, 1, 1, false);
       s2 = (Simple2)session.Open(556, 1, 1, false);
       session.Commit();
       session2.BeginUpdate();
       s1 = (Simple1)session2.Open(555, 1, 1, false);
       s2 = (Simple2)session2.Open(556, 1, 1, false);
       session2.Commit();
     }
   }
 }
    static void UpdaterThread()
    {
      using (ServerClientSession session = new ServerClientSession(s_systemDir))
      {
        session.BeginUpdate();
        Person Mats = new Person("Mats", "Persson", 22, 1234, null, null);
        session.Persist(Mats);
        Woman Kinga = new Woman("Kinga", "Persson", 56, 234, null, Mats);
        foreach (Person p in session.AllObjects<Person>(true))
        {
          p.Age = (ushort) (p.Age + 1); 
        }
        session.Persist(Kinga);
        session.Commit();
// 5 events
        Thread.Sleep(5000);

        session.BeginUpdate();
        Woman Lidia = new Woman("Lidia", "Persson", 22, 1234, null, null);
        session.Persist(Lidia);
        session.Commit();
// 0 events 
        Thread.Sleep(500);

        session.BeginUpdate();
        Woman Margareta = new Woman("Margareta", "Persson", 98, 1234, null, null);
        session.Persist(Margareta);
        session.Commit();
// 1 event
        Thread.Sleep(500);

        session.BeginUpdate();
        Woman Oliwia = new Woman("Oliwia", "Persson", 50, 1234, null, null);
        session.Persist(Oliwia);
        session.Commit();
// 0 events
        Thread.Sleep(500);

        session.BeginUpdate();
        foreach (Woman p in session.AllObjects<Woman>())
        {
          p.Age = (ushort) (p.Age + 1); 
        }
        session.Commit();
// 3 events
        session.BeginUpdate();
        foreach (Woman p in session.AllObjects<Woman>())
        {
          p.Age = (ushort)(p.Age + 1);
        }
        session.Commit();
// 3 events
      }
    }
Exemple #6
0
        public void test()
        {
            ServerClientSession VelocityServerSession = new ServerClientSession(systemDir, "localhost");
            Woman TmpSynchronizationData = new Woman();//APSSynchData TmpSynchronizationData = default(APSSynchData);

            // APSSynchData();
            //TmpSynchronizationData.SyncedElections = new VelocityDbList<Man>();
            VelocityServerSession.BeginUpdate();
            TmpSynchronizationData.Persist(VelocityServerSession, TmpSynchronizationData);
            VelocityServerSession.Commit();
            //SaveToDisk("4.odb", DatabasePath + "\\4.odb");
            VelocityServerSession.BeginUpdate();
        }
 public void CreateLocationSameHostServer(bool optimisticLocking)
 {
     using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName(), 2000, optimisticLocking))
     {
         session.BeginUpdate();
         DatabaseLocation remoteLocation = new DatabaseLocation(Dns.GetHostName(), location2Dir, locationStartDbNum, locationEndDbNum, session, PageInfo.compressionKind.LZ4, 0);
         remoteLocation = session.NewLocation(remoteLocation);
         Database database = session.NewDatabase(remoteLocation.StartDatabaseNumber);
         Assert.NotNull(database);
         session.Commit();
     }
     using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName(), 2000, optimisticLocking))
     {
         session.BeginUpdate();
         Database database = session.OpenDatabase(locationStartDbNum, false);
         Assert.NotNull(database);
         session.DeleteDatabase(database);
         session.Commit();
     }
     using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName(), 2000, optimisticLocking))
     {
         session.BeginUpdate();
         foreach (DatabaseLocation loc in session.DatabaseLocations)
         {
             Console.WriteLine(loc.ToStringDetails(session, false));
         }
         session.DeleteLocation(session.DatabaseLocations.LocationForDb(locationStartDbNum));
         foreach (DatabaseLocation loc in session.DatabaseLocations)
         {
             Console.WriteLine(loc.ToStringDetails(session, false));
         }
         session.Commit();
     }
 }
 static void Main(string[] args)
 {
   SessionBase.DoWindowsAuthentication = false; // Make sure to use the same setting when starting VelocityDBServer, see http://www.velocitydb.com/UserGuide.aspx
   try
   {                                                           // initial DatabaseLocation directory and hostname
     using (ServerClientSession session = new ServerClientSession(systemDir, System.Net.Dns.GetHostName()))
     {
       session.BeginUpdate();
       // your code here
       Person robinHood = new Person("Robin", "Hood", 30);
       Person billGates = new Person("Bill", "Gates", 56, robinHood);
       Person steveJobs = new Person("Steve", "Jobs", 56, billGates);
       robinHood.BestFriend = billGates;
       session.Persist(steveJobs);
       steveJobs.Friends.Add(billGates);
       steveJobs.Friends.Add(robinHood);
       billGates.Friends.Add(billGates);
       robinHood.Friends.Add(steveJobs);
       session.Commit();
     }
   }
   catch (Exception ex)
   {
     Console.WriteLine(ex.ToString());
   }
 }
 public void CreateLocationSameHostServer(bool optimisticLocking)
 {
   using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName(), 2000, optimisticLocking))
   {
     session.BeginUpdate();
     DatabaseLocation remoteLocation = new DatabaseLocation(Dns.GetHostName(), location2Dir, locationStartDbNum, locationEndDbNum, session, PageInfo.compressionKind.LZ4, 0);
     remoteLocation = session.NewLocation(remoteLocation);
     Database database = session.NewDatabase(remoteLocation.StartDatabaseNumber);
     Assert.NotNull(database);
     session.Commit();
   }
   using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName(), 2000, optimisticLocking))
   {
     session.BeginUpdate();
     Database database = session.OpenDatabase(locationStartDbNum, false);
     Assert.NotNull(database);
     session.DeleteDatabase(database);
     session.Commit();
   }
   using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName(), 2000, optimisticLocking))
   {
     session.BeginUpdate();
     foreach (DatabaseLocation loc in session.DatabaseLocations)
       Console.WriteLine(loc.ToStringDetails(session, false));
     session.DeleteLocation(session.DatabaseLocations.LocationForDb(locationStartDbNum));
     foreach (DatabaseLocation loc in session.DatabaseLocations)
       Console.WriteLine(loc.ToStringDetails(session, false));
     session.Commit();
   }
 }
 static void Main(string[] args)
 {
     SessionBase.s_serverTcpIpPortNumber = 7032;
     SessionBase.DoWindowsAuthentication = false; // Make sure to use the same setting when starting VelocityDBServer, see http://www.velocitydb.com/UserGuide.aspx
     try
     {                                            // initial DatabaseLocation directory and hostname
         using (ServerClientSession session = new ServerClientSession(systemDir, System.Net.Dns.GetHostName()))
         {
             session.BeginUpdate();
             // your code here
             Person robinHood = new Person("Robin", "Hood", 30);
             Person billGates = new Person("Bill", "Gates", 56, robinHood);
             Person steveJobs = new Person("Steve", "Jobs", 56, billGates);
             robinHood.BestFriend = billGates;
             session.Persist(steveJobs);
             steveJobs.Friends.Add(billGates);
             steveJobs.Friends.Add(robinHood);
             billGates.Friends.Add(billGates);
             robinHood.Friends.Add(steveJobs);
             session.Commit();
         }
     }
     catch (Exception ex)
     {
         Console.WriteLine(ex.ToString());
     }
 }
        public void CreateMoreDataWithBackupServer()
        {
            int loops = 1000;
            int j;

            using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
            {
                Man   aMan   = null;
                Woman aWoman = null;
                session.BeginUpdate();
                for (j = 1; j <= loops; j++)
                {
                    aMan = new Man(null, aMan, DateTime.Now);
                    session.Persist(aMan);
                    aWoman = new Woman(aMan, aWoman);
                    session.Persist(aWoman);
                    aMan.m_spouse = new VelocityDb.WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000000 == 0)
                    {
                        Console.WriteLine("Loop # " + j);
                    }
                }
                UInt64 id = aWoman.Id;
                Console.WriteLine("Commit, done Loop # " + j);
                session.FlushUpdates();
                ReadSomeData(); // read some with uncommited cached server data
                session.Commit();
            }
        }
Exemple #12
0
        public void CreateMoreDataWithBackupServer()
        {
            int    loops            = 30000;
            UInt16 objectsPerPage   = 350;
            UInt16 pagesPerDatabase = 65000;
            int    j;

            using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName()))
            {
                Placement place  = new Placement(11, 1, 1, objectsPerPage, pagesPerDatabase);
                Man       aMan   = null;
                Woman     aWoman = null;
                session.BeginUpdate();
                for (j = 1; j <= loops; j++)
                {
                    aMan = new Man(null, aMan, DateTime.Now);
                    aMan.Persist(place, session);
                    aWoman = new Woman(aMan, aWoman);
                    aWoman.Persist(place, session);
                    aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000000 == 0)
                    {
                        Console.WriteLine("Loop # " + j);
                    }
                }
                UInt64 id = aWoman.Id;
                Console.WriteLine("Commit, done Loop # " + j);
                session.Commit();
            }
        }
        public void fCreateDatabasesPreSizeServer()
        {
            Database database;

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginUpdate();
                for (uint i = 50000100; i < 50000200; i++)
                {
                    database = session.NewDatabase(i, i - 50000100, "myServerSetDbName");
                    Assert.NotNull(database);
                }
                session.Commit();
            }
            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginUpdate();
                for (uint i = 50000000; i < 50000200; i++)
                {
                    database = session.OpenDatabase(i);
                    Assert.NotNull(database);
                }
                session.Commit();
            }
        }
 public void CreateMoreDataWithBackupServer()
 {
   int loops = 1000;
   int j;
   using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
   {
     Man aMan = null;
     Woman aWoman = null;
     session.BeginUpdate();
     for (j = 1; j <= loops; j++)
     {
       aMan = new Man(null, aMan, DateTime.Now);
       session.Persist(aMan);
       aWoman = new Woman(aMan, aWoman);
       session.Persist(aWoman);
       aMan.m_spouse = new VelocityDb.WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
       if (j % 1000000 == 0)
         Console.WriteLine("Loop # " + j);
     }
     UInt64 id = aWoman.Id;
     Console.WriteLine("Commit, done Loop # " + j);
     session.FlushUpdates();
     ReadSomeData(); // read some with uncommited cached server data
     session.Commit();
   }
 }
Exemple #15
0
 public void RestoreAllViaServer()
 {
     using (ServerClientSession session = new ServerClientSession(systemDir, null, 2000, false)) // don't use optimistic locking for restore
     {
         session.BeginUpdate();
         DatabaseLocation backupLocation = new DatabaseLocation(Dns.GetHostName(), backupDir, backupLocationStartDbNum, UInt32.MaxValue, session,
                                                                PageInfo.compressionKind.None, PageInfo.encryptionKind.noEncryption, true, session.DatabaseLocations.Default());
         session.RestoreFrom(backupLocation, DateTime.Now);
         session.Commit(false);
     }
 }
 public void serverSessionOverhead(int numberOfSessions)
 {
     for (int i = 0; i < numberOfSessions; i++)
     {
         using (ServerClientSession session = new ServerClientSession(systemDir2, systemHost3))
         {
             session.BeginUpdate();
             session.Commit();
         }
     }
 }
 public void UseManyFederations()
 {
   for (int i = 0; i < 50; i++)
   {
     using (SessionBase session = new ServerClientSession("Federation" + i))
     {
       session.BeginUpdate();
       session.Commit();
     }
   }
 }
 public void UseManyFederations()
 {
     for (int i = 0; i < 50; i++)
     {
         using (SessionBase session = new ServerClientSession("Federation" + i))
         {
             session.BeginUpdate();
             session.Commit();
         }
     }
 }
Exemple #19
0
        public static void CreateUser()
        {
            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
            {
                session.BeginUpdate();
                Graph        g              = Graph.Open(session);
                VertexType   movieType      = g.FindVertexType("MOVIE");
                PropertyType movieTitleType = movieType.FindProperty("TITLE");
                PropertyType movieYearType  = movieType.FindProperty("YEAR");

                for (int i = 1; i < 50; i++)
                {
                    Vertex mVickyCB = movieType.NewVertex();
                    mVickyCB.SetProperty(movieTitleType, "Vicky Cristina Barcelona" + i);
                    mVickyCB.SetProperty(movieYearType, (int)(2008 + i));
                    session.Commit();
                    session.BeginUpdate();
                    Thread.Sleep(1000);
                }
            }
        }
        public void gDeleteDatabasesServer()
        {
            Database database;

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginUpdate();
                for (uint i = 50000000; i < 50000100; i++)
                {
                    database = session.OpenDatabase(i);
                    session.DeleteDatabase(database);
                }
                session.Commit();
            }
        }
 public void DeleteBackupLocation()
 {
     using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
     {
         session.BeginUpdate();
         DatabaseLocation backupLocation = session.DatabaseLocations.LocationForDb(backupLocationStartDbNum);
         List <Database>  dbList         = session.OpenLocationDatabases(backupLocation, true);
         foreach (Database db in dbList)
         {
             session.DeleteDatabase(db);
         }
         session.DeleteLocation(backupLocation);
         session.Commit();
     }
 }
        public void RestoreToBackupServer()
        {
            using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost))
            {
                session.ClearServerCache(); // normally don't use this function but use it here to simulate a server going down and restarting
            }

            using (ServerClientSession session = new ServerClientSession(s_systemDir, backupHost, 1000, true, inMemoryOnly))
            {
                session.BeginUpdate();
                DatabaseLocation backupLocation = new DatabaseLocation(backupHost, backupDir, backupLocationStartDbNum, UInt32.MaxValue, session,
                                                                       PageInfo.compressionKind.LZ4, PageInfo.encryptionKind.noEncryption, true, session.DatabaseLocations.Default());
                session.RestoreFrom(backupLocation, DateTime.MaxValue);
                session.Commit(false, true);
            }
        }
        static void UpdaterThread()
        {
            using (ServerClientSession session = new ServerClientSession(s_systemDir))
            {
                session.BeginUpdate();
                Person Mats = new Person("Mats", "Persson", 22, 1234, null, null);
                session.Persist(Mats);
                Woman Kinga = new Woman("Kinga", "Persson", 56, 234, null, Mats);
                foreach (Person p in session.AllObjects <Person>(true))
                {
                    p.Age = (ushort)(p.Age + 1);
                }
                session.Persist(Kinga);
                session.Commit();
// 5 events
                Thread.Sleep(5000);

                session.BeginUpdate();
                Woman Lidia = new Woman("Lidia", "Persson", 22, 1234, null, null);
                session.Persist(Lidia);
                session.Commit();
// 0 events
                Thread.Sleep(500);

                session.BeginUpdate();
                Woman Margareta = new Woman("Margareta", "Persson", 98, 1234, null, null);
                session.Persist(Margareta);
                session.Commit();
// 1 event
                Thread.Sleep(500);

                session.BeginUpdate();
                Woman Oliwia = new Woman("Oliwia", "Persson", 50, 1234, null, null);
                session.Persist(Oliwia);
                session.Commit();
// 0 events
                Thread.Sleep(500);

                session.BeginUpdate();
                foreach (Woman p in session.AllObjects <Woman>())
                {
                    p.Age = (ushort)(p.Age + 1);
                }
                session.Commit();
// 3 events
                session.BeginUpdate();
                foreach (Woman p in session.AllObjects <Woman>())
                {
                    p.Age = (ushort)(p.Age + 1);
                }
                session.Commit();
// 3 events
            }
        }
 public void DeleteDefaultLocation()
 {
     using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
     {
         session.BeginUpdate();
         DatabaseLocation defaultLocation = session.DatabaseLocations.Default();
         List <Database>  dbList          = session.OpenLocationDatabases(defaultLocation, true);
         foreach (Database db in dbList)
         {
             if (db.DatabaseNumber > Database.InitialReservedDatabaseNumbers)
             {
                 session.DeleteDatabase(db);
             }
         }
         session.DeleteLocation(defaultLocation);
         session.Commit();
     }
 }
        static void Main(string[] args)
        {
            using (ServerClientSession session = new ServerClientSession(s_systemDir))
            {
                session.BeginUpdate();
                File.Copy(s_licenseDbFile, Path.Combine(s_systemDir, "4.odb"), true);
                session.RegisterClass(typeof(Woman));
                session.RegisterClass(typeof(Man));
                session.SubscribeToChanges(typeof(Person));
                session.SubscribeToChanges(typeof(Woman), "OlderThan50");
                Person robinHood = new Person("Robin", "Hood", 30, 1234, null, null);
                session.Persist(robinHood);
                Person billGates = new Person("Bill", "Gates", 56, 234, robinHood, null);
                session.Persist(billGates);
                Person steveJobs = new Person("Steve", "Jobs", 56, 456, billGates, null);
                session.Persist(steveJobs);
                session.Commit();
                Thread t = new Thread(UpdaterThread);
                t.Start();
                Thread.Sleep(600);

                for (int i = 0; i < 50; i++)
                {
                    List <Oid> changes = session.BeginReadWithEvents();
                    if (changes.Count == 0)
                    {
                        Console.WriteLine("No changes events at: " + DateTime.Now.ToString("HH:mm:ss:fff"));
                        Thread.Sleep(250);
                    }
                    foreach (Oid id in changes)
                    {
                        object obj = session.Open(id);
                        Console.WriteLine("Received change event for: " + obj + " at: " + DateTime.Now.ToString("HH:mm:ss:fff"));;
                        //session.UnsubscribeToChanges(typeof(Person));
                    }
                    Console.WriteLine();
                    session.Commit();
                }
                t.Join();
            }
        }
 static void Main(string[] args)
 {
   using (ServerClientSession session = new ServerClientSession(s_systemDir))
   {
     session.BeginUpdate();
     File.Copy(s_licenseDbFile, Path.Combine(s_systemDir, "4.odb"), true);
     session.RegisterClass(typeof(Woman));
     session.RegisterClass(typeof(Man));
     session.SubscribeToChanges(typeof(Person));
     session.SubscribeToChanges(typeof(Woman), "OlderThan50");
     Person robinHood = new Person("Robin", "Hood", 30, 1234, null, null);
     session.Persist(robinHood);
     Person billGates = new Person("Bill", "Gates", 56, 234, robinHood, null);
     session.Persist(billGates);
     Person steveJobs = new Person("Steve", "Jobs", 56, 456, billGates, null);
     session.Persist(steveJobs);
     session.Commit();
     Thread t = new Thread(UpdaterThread);
     t.Start();
     Thread.Sleep(600);
     
     for (int i = 0; i < 50; i++)
     {
       List<Oid> changes = session.BeginReadWithEvents();
       if (changes.Count == 0)
       {
         Console.WriteLine("No changes events at: " + DateTime.Now.ToString("HH:mm:ss:fff"));
         Thread.Sleep(250);
       }
       foreach (Oid id in changes)
       {
         object obj = session.Open(id);
         Console.WriteLine("Received change event for: " + obj + " at: " + DateTime.Now.ToString("HH:mm:ss:fff"));;
         //session.UnsubscribeToChanges(typeof(Person));
       }
       Console.WriteLine();
       session.Commit();
     }       
     t.Join();
   }
 }
        public void multipleServersOKCleanup()
        {
            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost, 2000, false)) // TO DO, change back to use optimistic locking
            {
                //session.SetTraceDbActivity(0);
                session.BeginUpdate();
                Database db = session.OpenDatabase(10000, true, false);
                if (db != null)
                {
                    session.DeleteDatabase(db);
                }
                db = session.OpenDatabase(20001, true, false);
                if (db != null)
                {
                    session.DeleteDatabase(db);
                }
                db = session.OpenDatabase(30001, true, false);
                if (db != null)
                {
                    session.DeleteDatabase(db);
                }
                db = session.OpenDatabase(40001, true, false);
                if (db != null)
                {
                    session.DeleteDatabase(db);
                }
                session.Commit();
                if (Directory.Exists(copyDir))
                {
                    Directory.Delete(copyDir, true);
                }
            }

            System.GC.Collect();
            System.GC.WaitForPendingFinalizers();

            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
            {
                Assert.True(session.OptimisticLocking);
            }
        }
Exemple #28
0
        public void Bug1Test()
        {
            _count++;
            VelocityDbSchema.Samples.Sample1.Person person;
            var sess = new ServerClientSession(systemDir);

            sess.BeginUpdate();
            var count = 10000;
            var tw    = new Stopwatch();

            tw.Start();
            for (int i = 0; i < count; i++)
            {
                person = new VelocityDbSchema.Samples.Sample1.Person("Bill" + i, "Gates", 56);
                person.Persist(sess, person);
            }
            tw.Stop();
            Console.WriteLine("{0} records in {1} ms., Count is: {2}", _count, tw.ElapsedMilliseconds, _count);
            sess.Commit();
            sess.Dispose();
        }
        public void AppendFile()
        {
            Placement place = new Placement(798, 1, 1, 1, UInt16.MaxValue);

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginUpdate();
                ObjWithArray a = new ObjWithArray(10);
                a.Persist(place, session);
                session.Commit(); // commit Database 798
            }
            place = new Placement(798, 2, 1, 100, UInt16.MaxValue);
            for (int i = 0; i < 25; i++)
            {
                using (ServerClientSession session = new ServerClientSession(systemDir))
                {
                    //session.SetTraceAllDbActivity();
                    session.BeginUpdate();
                    for (int j = 0; j < 1000; j++)
                    {
                        ObjWithArray a = new ObjWithArray(j * 10);
                        a.Persist(place, session);
                    }
                    session.FlushUpdates();
                    session.FlushUpdatesServers(); // check if this will cause file to be appended
                    Database db = session.NewDatabase(3567);
                    using (ServerClientSession session2 = new ServerClientSession(systemDir))
                    {
                        session2.BeginUpdate();
                        ObjWithArray a = new ObjWithArray(10);
                        a.Persist(place, session2);
                        session2.Commit();
                    }
                    session.Abort(); // appended page space now unused? Need tidy?
                }
            }
        }
 public void AppendFile()
 {
   Placement place = new Placement(798, 1, 1, 1, UInt16.MaxValue);
   using (ServerClientSession session = new ServerClientSession(systemDir))
   {
     session.BeginUpdate();
     ObjWithArray a = new ObjWithArray(10);
     a.Persist(place, session);
     session.Commit(); // commit Database 798
   }
   place = new Placement(798, 2, 1, 100, UInt16.MaxValue);
   for (int i = 0; i < 25; i++)
   {
     using (ServerClientSession session = new ServerClientSession(systemDir))
     {
       //session.SetTraceAllDbActivity();
       session.BeginUpdate();
       for (int j = 0; j < 1000; j++)
       {
         ObjWithArray a = new ObjWithArray(j * 10);
         a.Persist(place, session);
       }
       session.FlushUpdates();
       session.FlushUpdatesServers(); // check if this will cause file to be appended
       Database db = session.NewDatabase(3567);
       using (ServerClientSession session2 = new ServerClientSession(systemDir))
       {
         session2.BeginUpdate();
         ObjWithArray a = new ObjWithArray(10);
         a.Persist(place, session2);
         session2.Commit();
       }
       session.Abort(); // appended page space now unused? Need tidy?
     }
   }
 }
        public void SingleServerReaderSingleServerUpdater2(bool useReaderCommit)
        {
            const UInt32 dbNum = 567;

            using (ServerClientSession updater = new ServerClientSession(systemDir))
                using (ServerClientSession reader = new ServerClientSession(systemDir, null, 2000, true, false, CacheEnum.No)) // CacheEnum.No or cache validating on session.Begin() - makes test fail
                {
                    updater.BeginUpdate();
                    Database db = updater.OpenDatabase(dbNum, true, false);
                    if (db != null)
                    {
                        updater.DeleteDatabase(db);
                    }
                    updater.Commit();
                    updater.BeginUpdate();
                    Man       man;
                    Placement place = new Placement(dbNum, 1, 1, 2);
                    for (int i = 0; i < 100; i++)
                    {
                        man = new Man();
                        man.Persist(place, updater);
                    }
                    updater.Commit();
                    reader.BeginRead();
                    db = reader.OpenDatabase(dbNum);
                    foreach (Page page in db)
                    {
                        Assert.True(page.PageInfo.VersionNumber == 1);
                    }
                    if (useReaderCommit)
                    {
                        reader.Commit();
                    }
                    updater.BeginUpdate();
                    if (useReaderCommit)
                    {
                        reader.BeginRead();
                    }
                    else
                    {
                        reader.ForceDatabaseCacheValidation();
                    }
                    for (int i = 1; i < 25; i++)
                    {
                        db = reader.OpenDatabase(dbNum);
                        foreach (Page page in db)
                        {
                            if (page.PageNumber > 0)
                            {
                                Assert.True(page.PageInfo.VersionNumber == (ulong)i);
                                Man man2       = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
                                Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
                            }
                        }
                        if (useReaderCommit)
                        {
                            reader.Commit();
                            reader.BeginRead();
                        }
                        else
                        {
                            reader.ForceDatabaseCacheValidation();
                        }
                        updater.Commit();
                        updater.BeginUpdate();
                    }
                    Database db2 = reader.OpenDatabase(dbNum);
                    db = updater.OpenDatabase(dbNum);
                    for (int i = 25; i < 50; i++)
                    {
                        foreach (Page page in db)
                        {
                            if (page.PageNumber > 0)
                            {
                                Assert.True(page.PageInfo.VersionNumber == (ulong)i);
                                Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
                            }
                        }
                        updater.FlushUpdates(); // now server will see updated version of pages
                        foreach (Page page in db2)
                        {
                            if (page.PageNumber > 0)
                            {                                                         // BUG Nov 8, 2011 1.0.4.0 reader sees version 28 when it should see version 27
                                Assert.True(page.PageInfo.VersionNumber == (ulong)i); // reader should see the commited version of the page, not the uncommited updated version
                                Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
                            }
                        }
                        reader.ClearPageCache(); // required or else we will use cached page and Assert (see line above) will fail
                        System.GC.Collect();     // force weak referenced pages to be garbage collected (again to avoid Assert failure)
                        updater.Commit();
                        updater.BeginUpdate();
                    }
                    reader.Commit();
                    updater.DeleteDatabase(db);
                    updater.Commit();
                }
        }
 public void SingleServerReaderSingleServerUpdater2(bool useReaderCommit)
 {
   const UInt32 dbNum = 567;
   using (ServerClientSession updater = new ServerClientSession(systemDir))
   using (ServerClientSession reader = new ServerClientSession(systemDir, null, 2000, true, false, CacheEnum.No)) // CacheEnum.No or cache validating on session.Begin() - makes test fail
   {
     updater.BeginUpdate();
     Database db = updater.OpenDatabase(dbNum, true, false);
     if (db != null)
       updater.DeleteDatabase(db);
     updater.Commit();
     updater.BeginUpdate();
     Man man;
     Placement place = new Placement(dbNum, 1, 1, 2);
     for (int i = 0; i < 100; i++)
     {
       man = new Man();
       man.Persist(place, updater);
     }
     updater.Commit();
     reader.BeginRead();
     db = reader.OpenDatabase(dbNum);
     foreach (Page page in db)
       Assert.True(page.PageInfo.VersionNumber == 1);
     if (useReaderCommit)
       reader.Commit();
     updater.BeginUpdate();
     if (useReaderCommit)
       reader.BeginRead();
     else
       reader.ForceDatabaseCacheValidation();
     for (int i = 1; i < 25; i++)
     {
       db = reader.OpenDatabase(dbNum);
       foreach (Page page in db)
       {
         if (page.PageNumber > 0)
         {
           Assert.True(page.PageInfo.VersionNumber == (ulong)i);
           Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
           Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
         }
       }
       if (useReaderCommit)
       {
         reader.Commit();
         reader.BeginRead();
       }
       else
         reader.ForceDatabaseCacheValidation();
       updater.Commit();
       updater.BeginUpdate();
     }
     Database db2 = reader.OpenDatabase(dbNum);
     db = updater.OpenDatabase(dbNum);
     for (int i = 25; i < 50; i++)
     {
       foreach (Page page in db)
       {
         if (page.PageNumber > 0)
         {
           Assert.True(page.PageInfo.VersionNumber == (ulong)i);
           Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
         }
       }
       updater.FlushUpdates(); // now server will see updated version of pages
       foreach (Page page in db2)
       {
         if (page.PageNumber > 0)
         {                           // BUG Nov 8, 2011 1.0.4.0 reader sees version 28 when it should see version 27 
           Assert.True(page.PageInfo.VersionNumber == (ulong)i); // reader should see the commited version of the page, not the uncommited updated version
           Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
         }
       }
       reader.ClearPageCache(); // required or else we will use cached page and Assert (see line above) will fail
       System.GC.Collect(); // force weak referenced pages to be garbage collected (again to avoid Assert failure)
       updater.Commit();
       updater.BeginUpdate();
     }
     reader.Commit();
     updater.DeleteDatabase(db);
     updater.Commit();
   }
 }
 public void SingleServerReaderSingleServerUpdater1()
 {
   ServerClientSession updater = new ServerClientSession(systemDir);
   ServerClientSession reader = new ServerClientSession(systemDir);
   const UInt32 dbNum = 345;
   try
   {
     updater.BeginUpdate();
     Man man;
     Placement place = new Placement(dbNum, 1, 1, 2);
     for (int i = 0; i < 100; i++)
     {
       man = new Man();
       man.Persist(place, updater);
     }
     updater.Commit();
     reader.BeginRead();
     Database db = reader.OpenDatabase(dbNum);
     foreach (Page page in db)
       Assert.True(page.PageInfo.VersionNumber == 1);
     reader.Commit();
     updater.BeginUpdate();
     reader.BeginRead();
     for (int i = 1; i < 25; i++)
     {
       db = reader.OpenDatabase(dbNum);
       foreach (Page page in db)
       {
         if (page.PageNumber > 0)
         {
           Assert.True(page.PageInfo.VersionNumber == (ulong)i);
           Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
           Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
         }
       }
       reader.Commit();
       reader.BeginRead();
       updater.Commit();
       updater.BeginUpdate();
       reader.ForceDatabaseCacheValidation(); // we now validate on BeginRead so to make this test pass, we need to add this call after updater commit.
     }
     Database db2 = reader.OpenDatabase(dbNum);
     db = updater.OpenDatabase(dbNum);
     for (int i = 25; i < 50; i++)
     {
       foreach (Page page in db)
       {
         if (page.PageNumber > 0)
         {
           Assert.True(page.PageInfo.VersionNumber == (ulong)i);
           Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
         }
       }
       updater.Commit();
       updater.BeginUpdate();
       foreach (Page page in db2)
       {
         if (page.PageNumber > 0)
         {
           Assert.True(page.PageInfo.VersionNumber == (ulong)i + 1);
           Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
         }
       }
       reader.ClearPageCache(); // required or else we will use cached page and Assert (see line above) will fail
       System.GC.Collect(); // force weak referenced pages to be garbage collected (again to avoid Assert failure)
     }
     reader.Commit();
     updater.DeleteDatabase(db);
     updater.Commit();
   }
   finally
   {
     updater.Dispose();
     reader.Dispose();
   }
 }
        [Repeat(3)] // remove when propagtion of optimistic locking flag is done to slave database locations TO DO (issue caused by CopyAllDatabasdesTo that uses pessimistic locking)
        public void multipleServersOK()
        {
            using (SessionNoServer session = new SessionNoServer(systemDir))
            {
                session.BeginRead();
                foreach (DatabaseLocation loc in session.DatabaseLocations)
                {
                    Console.WriteLine(loc.ToStringDetails(session, false));
                }
                session.Commit();
            }

            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
            {
                session.SetTraceDbActivity(0);
                DatabaseLocation localLocation = new DatabaseLocation(systemHost, location2Dir, 10000, 20000, session, PageInfo.compressionKind.LZ4, 0);
                Placement        place         = new Placement(10000, 2);
                session.BeginUpdate();
                foreach (DatabaseLocation loc in session.DatabaseLocations)
                {
                    Console.WriteLine(loc.ToStringDetails(session, false));
                }
                Console.WriteLine();
                session.NewLocation(localLocation);
                foreach (DatabaseLocation loc in session.DatabaseLocations)
                {
                    Console.WriteLine(loc.ToStringDetails(session, false));
                }
                Man   aMan   = null;
                Woman aWoman = null;

                for (int j = 1; j <= 5; j++)
                {
                    aMan = new Man(null, aMan, DateTime.UtcNow);
                    aMan.Persist(place, session);
                    aWoman = new Woman(aMan, aWoman);
                    aWoman.Persist(place, session);
                    aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000 == 0)
                    {
                        session.FlushUpdates();
                    }
                }
                localLocation = new DatabaseLocation(systemHost2, systemDir, 20001, 30000, session, PageInfo.compressionKind.LZ4, 0);
                session.NewLocation(localLocation);
                foreach (DatabaseLocation loc in session.DatabaseLocations)
                {
                    Console.WriteLine(loc.ToStringDetails(session, false));
                }
                place = new Placement(20001);
                //localDatabase = session.NewDatabase(20001, localLocation);
                for (int j = 1; j <= 5; j++)
                {
                    aMan = new Man(null, aMan, DateTime.UtcNow);
                    aMan.Persist(place, session);
                    aWoman = new Woman(aMan, aWoman);
                    aWoman.Persist(place, session);
                    aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000 == 0)
                    {
                        session.FlushUpdates();
                    }
                }
                DatabaseLocation serverLocation = new DatabaseLocation(systemHost2, location2Dir, 30001, 40000, session, PageInfo.compressionKind.LZ4, 0);
                session.NewLocation(serverLocation);
                foreach (DatabaseLocation loc in session.DatabaseLocations)
                {
                    Console.WriteLine(loc.ToStringDetails(session, false));
                }
                place = new Placement(30001);
                for (int j = 1; j <= 5; j++)
                {
                    aMan = new Man(null, aMan, DateTime.UtcNow);
                    aMan.Persist(place, session);
                    aWoman = new Woman(aMan, aWoman);
                    aWoman.Persist(place, session);
                    aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000 == 0)
                    {
                        session.FlushUpdates();
                    }
                }
                localLocation = new DatabaseLocation(systemHost3, systemDir, 40001, 50000, session, PageInfo.compressionKind.None, 0);
                session.NewLocation(localLocation);
                place = new Placement(40001);
                //localDatabase = session.NewDatabase(20001, localLocation);
                for (int j = 1; j <= 5; j++)
                {
                    aMan = new Man(null, aMan, DateTime.UtcNow);
                    aMan.Persist(place, session);
                    aWoman = new Woman(aMan, aWoman);
                    aWoman.Persist(place, session);
                    aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                    if (j % 1000 == 0)
                    {
                        session.FlushUpdates();
                    }
                }
                session.Commit();
            }

            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
            {
                session.CopyAllDatabasesTo(copyDir);
                using (SessionNoServer copySession = new SessionNoServer(copyDir))
                {
                    copySession.Verify();
                }
            }

            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost, 2000, false)) // TO DO, change back to use optimistic locking
            {
                //session.SetTraceDbActivity(0);
                session.BeginUpdate();
                Database db = session.OpenDatabase(10000);
                session.DeleteDatabase(db);
                db = session.OpenDatabase(20001);
                session.DeleteDatabase(db);
                db = session.OpenDatabase(30001);
                session.DeleteDatabase(db);
                db = session.OpenDatabase(40001);
                session.DeleteDatabase(db);
                session.Commit();
                Directory.Delete(copyDir, true);
            }

            System.GC.Collect();
            System.GC.WaitForPendingFinalizers();

            using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
            {
                Assert.True(session.OptimisticLocking);
            }
        }
 public void fCreateDatabasesPreSizeServer()
 {
   Database database;
   using (ServerClientSession session = new ServerClientSession(systemDir))
   {
     session.BeginUpdate();
     for (uint i = 50000100; i < 50000200; i++)
     {
       database = session.NewDatabase(i, i - 50000100, "myServerSetDbName");
       Assert.NotNull(database);
     }
     session.Commit();
   }
   using (ServerClientSession session = new ServerClientSession(systemDir))
   {
     session.BeginUpdate();
     for (uint i = 50000000; i < 50000200; i++)
     {
       database = session.OpenDatabase(i);
       Assert.NotNull(database);
     }
     session.Commit();
   }
 }
 public void ServerPageFlush()
 {
     using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
     {
         //DatabaseLocation location = new DatabaseLocation(systemHost, location2Dir, 700, UInt32.MaxValue, session, false, PageInfo.encryptionKind.noEncryption);
         Placement place = new Placement(789, 1, 1, 1);
         //session.SetTraceAllDbActivity();
         session.BeginUpdate();
         session.RegisterClass(typeof(ObjWithArray));                                                  // avoid lock failure by registrty ahead of running parallell sessions.
         session.RegisterClass(typeof(Person));                                                        // avoid lock failure by registrty ahead of running parallell sessions.
         session.RegisterClass(typeof(VelocityDbSchema.Samples.AllSupportedSample.Pet));               // avoid lock failure by registrty ahead of running parallell sessions.
         session.RegisterClass(typeof(VelocityDbList <WeakIOptimizedPersistableReference <Person> >)); // avoid lock failure by registrty ahead of running parallell sessions.
         // session.NewLocation(location);
         session.Commit();
         session.BeginUpdate();
         for (int i = 0; i < 4000; i++)
         {
             ObjWithArray person = new ObjWithArray(i * 10);
             person.Persist(place, session);
         }
         session.FlushUpdates();
         for (int i = 0; i < 1000; i++)
         {
             ObjWithArray person = new ObjWithArray(i);
             person.Persist(place, session);
         }
         using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
         {
             Placement place2 = new Placement(7891, 1, 1, 1);
             session2.BeginUpdate();
             for (int i = 0; i < 1000; i++)
             {
                 ObjWithArray person = new ObjWithArray(i);
                 person.Persist(place2, session2);
             }
             session2.FlushUpdates();
             for (int i = 0; i < 1000; i++)
             {
                 ObjWithArray person = new ObjWithArray(i);
                 person.Persist(place2, session2);
             }
             session2.Commit();
         }
         using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
         {
             Placement place2 = new Placement(7894, 1, 1, 1);
             session2.BeginUpdate();
             for (int i = 0; i < 5000; i++)
             {
                 ObjWithArray person = new ObjWithArray(i);
                 person.Persist(place2, session2);
             }
             session2.FlushUpdates();
             for (int i = 0; i < 1000; i++)
             {
                 ObjWithArray person = new ObjWithArray(i);
                 person.Persist(place2, session2);
             }
             session2.Commit();
         }
         using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
         {
             Placement place2 = new Placement(7897, 1, 1, 1);
             session2.BeginUpdate();
             for (int i = 0; i < 5000; i++)
             {
                 ObjWithArray person = new ObjWithArray(i);
                 person.Persist(place2, session2);
             }
             session2.FlushUpdates();
             for (int i = 0; i < 1000; i++)
             {
                 ObjWithArray person = new ObjWithArray(i);
                 person.Persist(place2, session2);
             }
             using (ServerClientSession session3 = new ServerClientSession(systemDir, systemHost))
             {
                 Placement place3 = new Placement(7900, 1, 1, 1);
                 session3.BeginUpdate();
                 for (int i = 0; i < 1000; i++)
                 {
                     ObjWithArray person = new ObjWithArray(i);
                     person.Persist(place3, session3);
                 }
                 session3.FlushUpdates();
                 for (int i = 0; i < 1000; i++)
                 {
                     ObjWithArray person = new ObjWithArray(i);
                     person.Persist(place3, session3);
                 }
                 session.Commit();
                 session2.Commit();
                 session3.Commit();
             }
         }
     }
 }
 public void PagesWritten()
 {
     using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
     {
         Placement place = new Placement(789);
         session.BeginUpdate();
         session.RegisterClass(typeof(Person));
         session.RegisterClass(typeof(VelocityDbList <WeakIOptimizedPersistableReference <Person> >));
         session.RegisterClass(typeof(VelocityDbSchema.Samples.AllSupportedSample.Pet));
         session.RegisterClass(typeof(System.Guid));
         session.RegisterClass(typeof(AutoPlacement));
         session.Commit();
         session.BeginUpdate();
         Person person = new Person();
         person.m_friends.Persist(place, session);
         person.Persist(place, session);
         session.FlushUpdates();
         person = new Person();
         person.Persist(place, session);
         using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
         {
             Placement place2 = new Placement(7891);
             session2.BeginUpdate();
             Person person2 = new Person();
             person2.m_friends.Persist(place2, session2);
             person2.Persist(place2, session2);
             session2.FlushUpdates();
             person2 = new Person();
             person2.Persist(place2, session2);
             session2.Commit();
         }
         using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
         {
             Placement place2 = new Placement(7892);
             session2.BeginUpdate();
             Person person2 = new Person();
             person2.m_friends.Persist(place2, session2);
             person2.Persist(place2, session2);
             session2.FlushUpdates();
             person2 = new Person();
             person2.m_friends.Persist(place2, session2);
             person2.Persist(place2, session2);
             session2.Commit();
         }
         using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
         {
             Placement place2 = new Placement(7893);
             session2.BeginUpdate();
             Person person2 = new Person();
             person2.m_friends.Persist(place2, session2);
             person2.Persist(place2, session2);
             session2.FlushUpdates();
             person2 = new Person();
             person2.Persist(place2, session2);
             using (ServerClientSession session3 = new ServerClientSession(systemDir, systemHost))
             {
                 Placement place3 = new Placement(7894);
                 session3.BeginUpdate();
                 Person person3 = new Person();
                 person3.m_friends.Persist(place3, session3);
                 person3.Persist(place3, session3);
                 session3.FlushUpdates();
                 person3 = new Person();
                 person3.m_friends.Persist(place3, session3);
                 person3.Persist(place3, session3);
                 session.Commit();
                 session2.Commit();
                 session3.Commit();
             }
         }
     }
 }
Exemple #38
0
        public void HighAvalailabiltyByReplication()
        {
            var alternateSystemBoot = new List <ReplicaInfo> {
                new ReplicaInfo {
                    Path = "Replica1"
                }, new ReplicaInfo {
                    Path = "Replica2"
                }
            };
            var p1       = SessionBase.BaseDatabasePath + "/Replica1";
            var p2       = SessionBase.BaseDatabasePath + "/Replica2";
            var p3       = SessionBase.BaseDatabasePath + "/Replica3";
            var p3remote = $"\\{s_systemHost2}/databases/Replica3";

            if (Directory.Exists(p1))
            {
                Directory.Delete(p1, true);
            }
            if (Directory.Exists(p2))
            {
                Directory.Delete(p2, true);
            }
            if (Directory.Exists(p3))
            {
                Directory.Delete(p3, true);
            }
            if (Directory.Exists(p3remote))
            {
                Directory.Delete(p3remote, true);
            }

            using (var session = new ServerClientSession(alternateSystemBoot))
            {
                session.BeginUpdate();
                for (int i = 0; i < 100; i++)
                {
                    var s = i.ToString();
                    session.Persist(s);
                }
                session.Commit();
            }

            alternateSystemBoot = new List <ReplicaInfo> {
                new ReplicaInfo {
                    Path = "Replica1"
                }, new ReplicaInfo {
                    Path = "Replica2"
                }, new ReplicaInfo {
                    Path = "Replica3", Host = s_systemHost2
                }
            };
            using (var session = new ServerClientSession(alternateSystemBoot))
            {
                session.BeginUpdate();
                for (int i = 0; i < 100; i++)
                {
                    var s = i.ToString();
                    session.Persist(s);
                }
                session.Commit();
            }

            using (var session = new ServerClientSession(alternateSystemBoot))
            {
                session.BeginUpdate();
                for (int i = 0; i < 10; i++)
                {
                    var s = i.ToString();
                    session.Persist(s);
                }
                if (Directory.Exists(p2))
                {
                    Directory.Delete(p2, true);
                }
                session.Commit();
            }

            using (var session = new ServerClientSession(alternateSystemBoot))
            {
                session.BeginRead();
                foreach (var s in session.AllObjects <string>())
                {
                    Console.WriteLine(s);
                }
                session.Commit();
            }

            using (var session = new ServerClientSession(alternateSystemBoot))
            {
                session.BeginUpdate();
                for (int i = 0; i < 10; i++)
                {
                    var s = i.ToString();
                    session.Persist(s);
                    if (Directory.Exists(p2))
                    {
                        Directory.Delete(p2, true);
                    }
                }
                session.Commit();
            }

            using (var session = new ServerClientSession(alternateSystemBoot))
            {
                session.BeginRead();
                foreach (var s in session.AllObjects <string>())
                {
                    Console.WriteLine(s);
                }
                session.Commit();
            }

            using (var session = new SessionNoServer("Replica1"))
            {
                session.Verify();
            }
            using (var session = new SessionNoServer("Replica2"))
            {
                session.Verify();
            }
            using (var session = new ServerClientSession("Replica3", s_systemHost2))
            {
                session.Verify();
            }
        }
   public void multipleServersOKCleanup()
    {
      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost, 2000, false)) // TO DO, change back to use optimistic locking
      {
        //session.SetTraceDbActivity(0);
        session.BeginUpdate();
        Database db = session.OpenDatabase(10000, true, false);
        if (db != null)
          session.DeleteDatabase(db);
        db = session.OpenDatabase(20001, true, false);
        if (db != null)
          session.DeleteDatabase(db);
        db = session.OpenDatabase(30001, true, false);
        if (db != null)
          session.DeleteDatabase(db);
        db = session.OpenDatabase(40001, true, false);
        if (db != null)
          session.DeleteDatabase(db);
        session.Commit();
        if (Directory.Exists(copyDir))
          Directory.Delete(copyDir, true);
      }

      System.GC.Collect();
      System.GC.WaitForPendingFinalizers();

      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
      {
        Assert.True(session.OptimisticLocking);
      }
    }
 public void DeleteDefaultLocation()
 {
   using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
   {
     session.BeginUpdate();
     DatabaseLocation defaultLocation = session.DatabaseLocations.Default();
     List<Database> dbList = session.OpenLocationDatabases(defaultLocation, true);
     foreach (Database db in dbList)
       if (db.DatabaseNumber > Database.InitialReservedDatabaseNumbers)
         session.DeleteDatabase(db);
     session.DeleteLocation(defaultLocation);
     session.Commit();
   }
 }
 public void DeleteBackupLocation()
 {
   using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost, 1000, true, inMemoryOnly))
   {
     session.BeginUpdate();
     DatabaseLocation backupLocation = session.DatabaseLocations.LocationForDb(backupLocationStartDbNum);
     List<Database> dbList = session.OpenLocationDatabases(backupLocation, true);
     foreach (Database db in dbList)
       session.DeleteDatabase(db);
     session.DeleteLocation(backupLocation);
     session.Commit();
   }
 }
    public void multipleServersInvalid()
    {
      Assert.Throws<InvalidChangeOfDefaultLocationException>(() =>
      {
        using (ServerClientSession session = new ServerClientSession(systemDir))
        {
          session.SetTraceDbActivity(2);
          try
          {
            DatabaseLocation localLocation = new DatabaseLocation(systemHost, location2Dir, 10000, 20000, session, PageInfo.compressionKind.LZ4, 0);
            Placement place = new Placement(10000, 2);
            session.BeginUpdate();
            session.NewLocation(localLocation);
            Man aMan = null;
            Woman aWoman = null;

            for (int j = 1; j <= 5; j++)
            {
              aMan = new Man(null, aMan, DateTime.UtcNow);
              aMan.Persist(place, session);
              aWoman = new Woman(aMan, aWoman);
              aWoman.Persist(place, session);
              aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
              if (j % 1000 == 0)
              {
                session.FlushUpdates();
              }
            }
            localLocation = new DatabaseLocation(systemHost, systemDir, 20001, 30000, session, PageInfo.compressionKind.None, 0);
            session.NewLocation(localLocation);
            place = new Placement(20001);
            //localDatabase = session.NewDatabase(20001, localLocation);
            for (int j = 1; j <= 5; j++)
            {
              aMan = new Man(null, aMan, DateTime.UtcNow);
              aMan.Persist(place, session);
              aWoman = new Woman(aMan, aWoman);
              aWoman.Persist(place, session);
              aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
              if (j % 1000 == 0)
              {
                session.FlushUpdates();
              }
            }
            DatabaseLocation serverLocation = new DatabaseLocation(systemHost2, location2Dir, 30001, 40000, session, PageInfo.compressionKind.LZ4, 0);
            session.NewLocation(serverLocation);
            place = new Placement(30001);
            for (int j = 1; j <= 5; j++)
            {
              aMan = new Man(null, aMan, DateTime.UtcNow);
              aMan.Persist(place, session);
              aWoman = new Woman(aMan, aWoman);
              aWoman.Persist(place, session);
              aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
              if (j % 1000 == 0)
              {
                session.FlushUpdates();
              }
            }
            session.Commit();
          }
          finally
          {
            //session.Close();
          }
        }
      });
    }
        public void SingleServerReaderSingleServerUpdater1()
        {
            ServerClientSession updater = new ServerClientSession(systemDir);
            ServerClientSession reader  = new ServerClientSession(systemDir);
            const UInt32        dbNum   = 345;

            try
            {
                updater.BeginUpdate();
                Man       man;
                Placement place = new Placement(dbNum, 1, 1, 2);
                for (int i = 0; i < 100; i++)
                {
                    man = new Man();
                    man.Persist(place, updater);
                }
                updater.Commit();
                reader.BeginRead();
                Database db = reader.OpenDatabase(dbNum);
                foreach (Page page in db)
                {
                    Assert.True(page.PageInfo.VersionNumber == 1);
                }
                reader.Commit();
                updater.BeginUpdate();
                reader.BeginRead();
                for (int i = 1; i < 25; i++)
                {
                    db = reader.OpenDatabase(dbNum);
                    foreach (Page page in db)
                    {
                        if (page.PageNumber > 0)
                        {
                            Assert.True(page.PageInfo.VersionNumber == (ulong)i);
                            Man man2       = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
                            Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
                        }
                    }
                    reader.Commit();
                    reader.BeginRead();
                    updater.Commit();
                    updater.BeginUpdate();
                    reader.ForceDatabaseCacheValidation(); // we now validate on BeginRead so to make this test pass, we need to add this call after updater commit.
                }
                Database db2 = reader.OpenDatabase(dbNum);
                db = updater.OpenDatabase(dbNum);
                for (int i = 25; i < 50; i++)
                {
                    foreach (Page page in db)
                    {
                        if (page.PageNumber > 0)
                        {
                            Assert.True(page.PageInfo.VersionNumber == (ulong)i);
                            Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
                        }
                    }
                    updater.Commit();
                    updater.BeginUpdate();
                    foreach (Page page in db2)
                    {
                        if (page.PageNumber > 0)
                        {
                            Assert.True(page.PageInfo.VersionNumber == (ulong)i + 1);
                            Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
                        }
                    }
                    reader.ClearPageCache(); // required or else we will use cached page and Assert (see line above) will fail
                    System.GC.Collect();     // force weak referenced pages to be garbage collected (again to avoid Assert failure)
                }
                reader.Commit();
                updater.DeleteDatabase(db);
                updater.Commit();
            }
            finally
            {
                updater.Dispose();
                reader.Dispose();
            }
        }
 public void serverSessionOverhead(int numberOfSessions)
 {
   for (int i = 0; i < numberOfSessions; i++)
   {
     using (ServerClientSession session = new ServerClientSession(systemDir2, systemHost3))
     {
       session.BeginUpdate();
       session.Commit();
     }
   }
 }
    public void RestoreToBackupServer()
    {
      using (ServerClientSession session = new ServerClientSession(s_systemDir, systemHost))
      {
        session.ClearServerCache(); // normally don't use this function but use it here to simulate a server going down and restarting
      }

      using (ServerClientSession session = new ServerClientSession(s_systemDir, backupHost, 1000, true, inMemoryOnly))
      {
        session.BeginUpdate();
        DatabaseLocation backupLocation = new DatabaseLocation(backupHost, backupDir, backupLocationStartDbNum, UInt32.MaxValue, session,
          PageInfo.compressionKind.LZ4, PageInfo.encryptionKind.noEncryption, true, session.DatabaseLocations.Default());
        session.RestoreFrom(backupLocation, DateTime.MaxValue);
        session.Commit(false, true);
      }
    }
    public static void CreateUser()
    {
      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
      {
        session.BeginUpdate();
        Graph g = Graph.Open(session);
        VertexType movieType = g.FindVertexType("MOVIE");
        PropertyType movieTitleType = movieType.FindProperty("TITLE");
        PropertyType movieYearType = movieType.FindProperty("YEAR");

        for (int i = 1; i < 50; i++)
        {
          Vertex mVickyCB = movieType.NewVertex();
          mVickyCB.SetProperty(movieTitleType, "Vicky Cristina Barcelona" + i);
          mVickyCB.SetProperty(movieYearType, (int)(2008 + i));
          session.Commit();
          session.BeginUpdate();
          Thread.Sleep(1000);
        }
      }
    }
 public void CreateMoreDataWithBackupServer()
 {
   int loops = 30000;
   UInt16 objectsPerPage = 350;
   UInt16 pagesPerDatabase = 65000;
   int j;
   using (ServerClientSession session = new ServerClientSession(systemDir, Dns.GetHostName()))
   {
     Placement place = new Placement(11, 1, 1, objectsPerPage, pagesPerDatabase);
     Man aMan = null;
     Woman aWoman = null;
     session.BeginUpdate();
     for (j = 1; j <= loops; j++)
     {
       aMan = new Man(null, aMan, DateTime.UtcNow);
       aMan.Persist(place, session);
       aWoman = new Woman(aMan, aWoman);
       aWoman.Persist(place, session);
       aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);          
       if (j % 1000000 == 0)
         Console.WriteLine("Loop # " + j);
     }
     UInt64 id = aWoman.Id;
     Console.WriteLine("Commit, done Loop # " + j);
     session.Commit();
   }
 }
Exemple #48
0
        public void CachedSessionTest()
        {
            ServerClientSession lSession = GetCachedSession();

            //lets simulate that we did some prior work, return the session and get it again
            ReturnSessionToCache(lSession);
            lSession = GetCachedSession();
            TestClass lTestClass = new TestClass();

            lTestClass.SomeIntVar    = 123;
            lTestClass.SomeStringVar = "test";
            UInt64  id      = lTestClass.Persist(lSession, lTestClass);
            var     c       = new Class_A();
            UInt64  id2     = lSession.Persist(c);
            Class_B class_b = new Class_B();

            class_b.IntField    = 11;
            class_b.StringField = "sss";
            Class_A class_a = new Class_A();

            class_a.string_field = "xxx";
            class_a.b_field      = class_b;
            UInt64 id3 = lSession.Persist(class_a);

            lSession.Commit();
            //return to cache, get it again and query the object
            //as this test is to verify it does not hang we do it in separate thread and kill after timeout
            ReturnSessionToCache(lSession);
            lSession = GetCachedSession();
            lSession.Abort();
            lSession.BeginUpdate();
            Class_A cA = lSession.Open <Class_A>(id2);

            cA         = lSession.Open <Class_A>(id3);
            lTestClass = lSession.Open <TestClass>(id);
            Assert.NotNull(lTestClass.GeoCord);
            Assert.NotNull(lTestClass.StoredStructInObjectField);
            lTestClass.SomeIntVar    = 1234;
            lTestClass.SomeStringVar = "test2";
            lTestClass.Persist(lSession, lTestClass);
            lSession.Commit();
            //return to cache, get it again and query the object
            //as this test is to verify it does not hang we do it in separate thread and kill after timeout
            ReturnSessionToCache(lSession);
            lSession = GetCachedSession();
            counter  = (int)lSession.AllObjects <TestClass>(true, false).Count();
            ReturnSessionToCache(lSession);
            Thread lThread = new Thread(new ThreadStart(() =>
            {
                lSession = GetCachedSession();
                counter  = (int)lSession.AllObjects <TestClass>(true, false).Count();
                ReturnSessionToCache(lSession);
            }));

            lThread.Start();
            lEvent.WaitOne(5000);
            if (lThread.IsAlive)
            {
                lThread.Abort();
            }
            Assert.AreNotEqual(0, counter, "Invalid number of objects retrieved");
        }
        public void multipleServersInvalid()
        {
            Assert.Throws <InvalidChangeOfDefaultLocationException>(() =>
            {
                using (ServerClientSession session = new ServerClientSession(systemDir))
                {
                    session.SetTraceDbActivity(2);
                    try
                    {
                        DatabaseLocation localLocation = new DatabaseLocation(systemHost, location2Dir, 10000, 20000, session, PageInfo.compressionKind.LZ4, 0);
                        Placement place = new Placement(10000, 2);
                        session.BeginUpdate();
                        session.NewLocation(localLocation);
                        Man aMan     = null;
                        Woman aWoman = null;

                        for (int j = 1; j <= 5; j++)
                        {
                            aMan = new Man(null, aMan, DateTime.UtcNow);
                            aMan.Persist(place, session);
                            aWoman = new Woman(aMan, aWoman);
                            aWoman.Persist(place, session);
                            aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                            if (j % 1000 == 0)
                            {
                                session.FlushUpdates();
                            }
                        }
                        localLocation = new DatabaseLocation(systemHost, systemDir, 20001, 30000, session, PageInfo.compressionKind.None, 0);
                        session.NewLocation(localLocation);
                        place = new Placement(20001);
                        //localDatabase = session.NewDatabase(20001, localLocation);
                        for (int j = 1; j <= 5; j++)
                        {
                            aMan = new Man(null, aMan, DateTime.UtcNow);
                            aMan.Persist(place, session);
                            aWoman = new Woman(aMan, aWoman);
                            aWoman.Persist(place, session);
                            aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                            if (j % 1000 == 0)
                            {
                                session.FlushUpdates();
                            }
                        }
                        DatabaseLocation serverLocation = new DatabaseLocation(systemHost2, location2Dir, 30001, 40000, session, PageInfo.compressionKind.LZ4, 0);
                        session.NewLocation(serverLocation);
                        place = new Placement(30001);
                        for (int j = 1; j <= 5; j++)
                        {
                            aMan = new Man(null, aMan, DateTime.UtcNow);
                            aMan.Persist(place, session);
                            aWoman = new Woman(aMan, aWoman);
                            aWoman.Persist(place, session);
                            aMan.m_spouse = new WeakIOptimizedPersistableReference <VelocityDbSchema.Person>(aWoman);
                            if (j % 1000 == 0)
                            {
                                session.FlushUpdates();
                            }
                        }
                        session.Commit();
                    }
                    finally
                    {
                        //session.Close();
                    }
                }
            });
        }
 public void RestoreAllViaServer()
 {
   using (ServerClientSession session = new ServerClientSession(systemDir, null, 2000, false)) // don't use optimistic locking for restore
   {
     session.BeginUpdate();
     DatabaseLocation backupLocation = new DatabaseLocation(Dns.GetHostName(), backupDir, backupLocationStartDbNum, UInt32.MaxValue, session,
       PageInfo.compressionKind.None, PageInfo.encryptionKind.noEncryption, true, session.DatabaseLocations.Default());
     session.RestoreFrom(backupLocation, DateTime.UtcNow);
     session.Commit(false, true);
   }
 }
Exemple #51
0
        public void SimpleApiServer()
        {
            long   ssn = 555555;
            UInt16 age = 1;

            VelocityDbSchema.Person mats;
            Placement place;

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                // skip delete database since it invalidates indices

                session.BeginUpdate();
                Database db = session.OpenDatabase(10, true, false);
                if (db != null)
                {
                    session.DeleteDatabase(db);
                }
                session.Commit();
                session.BeginUpdate();
                place = new Placement(10, 2, 1, 1, 10);
                DateTime birthday = new DateTime(1960, 6, 13);
                mats = new Man("Mats", "Persson", age++, ssn++, birthday);
                mats.Persist(place, session);
                session.Commit();
                session.ClearServerCache();
            }
            UInt64 mOid1 = Oid.Encode(10, 2, 1);

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginUpdate();
                UInt32 dbNum = Oid.DatabaseNumber(mOid1);
                mats = (VelocityDbSchema.Person)session.Open(mOid1);
                Woman kinga = null;
                mats = new Man("Mats", "Persson", age++, ssn++, new DateTime(1960, 6, 13));
                Cat cat = new Cat("Boze", 8);
                mats.m_pets.Add(cat);
                Bird bird = new Bird("Pippi", 1);
                cat.friends.Add(bird);
                mats.Persist(place, session);
                kinga = new Woman("Kinga", "Persson", age, ssn, mats, mats);
                kinga.Persist(place, session);
                VelocityDbSchema.Person robin = new VelocityDbSchema.Person("Robin", "Persson", 13, 1, mats, null);
                robin.Persist(place, session);
                mOid1 = mats.Id;
                mats  = null;
                mats  = (VelocityDbSchema.Person)session.Open(mOid1);
                session.Commit();
                session.ClearServerCache();
            }

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginUpdate();
                mats = (VelocityDbSchema.Person)session.Open(mOid1);
                session.Commit();
                session.ClearServerCache();
            }

            using (ServerClientSession session = new ServerClientSession(systemDir))
            {
                session.BeginRead();
                ulong mOid2 = mats.Id;
                mats = (VelocityDbSchema.Person)session.Open(mOid2);
                session.Commit();
                session.ClearServerCache();
            }
        }
 public void gDeleteDatabasesServer()
 {
   Database database;
   using (ServerClientSession session = new ServerClientSession(systemDir))
   {
     session.BeginUpdate();
     for (uint i = 50000000; i < 50000100; i++)
     {
       database = session.OpenDatabase(i);
       session.DeleteDatabase(database);
     }
     session.Commit();
   }
 }
Exemple #53
0
 public void test()
 {
   ServerClientSession VelocityServerSession = new ServerClientSession(systemDir, "localhost");
   Woman TmpSynchronizationData = new Woman();//APSSynchData TmpSynchronizationData = default(APSSynchData);     
    // APSSynchData();
   //TmpSynchronizationData.SyncedElections = new VelocityDbList<Man>();
   VelocityServerSession.BeginUpdate();
   TmpSynchronizationData.Persist(VelocityServerSession, TmpSynchronizationData);
   VelocityServerSession.Commit();
   //SaveToDisk("4.odb", DatabasePath + "\\4.odb");
   VelocityServerSession.BeginUpdate();
 }
    [Repeat(3)] // remove when propagation of optimistic locking flag is done to slave database locations TO DO (issue caused by CopyAllDatabasdesTo that uses pessimistic locking)
    public void multipleServersOK()
    {
      using (SessionNoServer session = new SessionNoServer(systemDir))
      {
        session.BeginRead();
        foreach (DatabaseLocation loc in session.DatabaseLocations)
          Console.WriteLine(loc.ToStringDetails(session, false));
        session.Commit();
      }

      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
      {
        session.SetTraceDbActivity(0);
        DatabaseLocation localLocation = new DatabaseLocation(systemHost, location2Dir, 10000, 20000, session, PageInfo.compressionKind.LZ4, 0);
        Placement place = new Placement(10000, 2);
        session.BeginUpdate();
        foreach (DatabaseLocation loc in session.DatabaseLocations)
          Console.WriteLine(loc.ToStringDetails(session, false));
        Console.WriteLine();
        session.NewLocation(localLocation);
        foreach (DatabaseLocation loc in session.DatabaseLocations)
          Console.WriteLine(loc.ToStringDetails(session, false));
        Man aMan = null;
        Woman aWoman = null;

        for (int j = 1; j <= 5; j++)
        {
          aMan = new Man(null, aMan, DateTime.UtcNow);
          aMan.Persist(place, session);
          aWoman = new Woman(aMan, aWoman);
          aWoman.Persist(place, session);
          aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
          if (j % 1000 == 0)
          {
            session.FlushUpdates();
          }
        }
        localLocation = new DatabaseLocation(systemHost2, systemDir, 20001, 30000, session, PageInfo.compressionKind.LZ4, 0);
        session.NewLocation(localLocation);
        foreach (DatabaseLocation loc in session.DatabaseLocations)
          Console.WriteLine(loc.ToStringDetails(session, false));
        place = new Placement(20001);
        //localDatabase = session.NewDatabase(20001, localLocation);
        for (int j = 1; j <= 5; j++)
        {
          aMan = new Man(null, aMan, DateTime.UtcNow);
          aMan.Persist(place, session);
          aWoman = new Woman(aMan, aWoman);
          aWoman.Persist(place, session);
          aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
          if (j % 1000 == 0)
          {
            session.FlushUpdates();
          }
        }
        DatabaseLocation serverLocation = new DatabaseLocation(systemHost2, location2Dir, 30001, 40000, session, PageInfo.compressionKind.LZ4, 0);
        session.NewLocation(serverLocation);
        foreach (DatabaseLocation loc in session.DatabaseLocations)
          Console.WriteLine(loc.ToStringDetails(session, false));
        place = new Placement(30001);
        for (int j = 1; j <= 5; j++)
        {
          aMan = new Man(null, aMan, DateTime.UtcNow);
          aMan.Persist(place, session);
          aWoman = new Woman(aMan, aWoman);
          aWoman.Persist(place, session);
          aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
          if (j % 1000 == 0)
          {
            session.FlushUpdates();
          }
        }
        localLocation = new DatabaseLocation(systemHost3, systemDir, 40001, 50000, session, PageInfo.compressionKind.None, 0);
        session.NewLocation(localLocation);
        place = new Placement(40001);
        //localDatabase = session.NewDatabase(20001, localLocation);
        for (int j = 1; j <= 5; j++)
        {
          aMan = new Man(null, aMan, DateTime.UtcNow);
          aMan.Persist(place, session);
          aWoman = new Woman(aMan, aWoman);
          aWoman.Persist(place, session);
          aMan.m_spouse = new WeakIOptimizedPersistableReference<VelocityDbSchema.Person>(aWoman);
          if (j % 1000 == 0)
          {
            session.FlushUpdates();
          }
        }
        session.Commit();
      }

      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
      {
        session.CopyAllDatabasesTo(copyDir);
        using (SessionNoServer copySession = new SessionNoServer(copyDir))
        {
          copySession.Verify();
        }
      }

      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost, 2000, false)) // TO DO, change back to use optimistic locking
      {
        //session.SetTraceDbActivity(0);
        session.BeginUpdate();
        Database db = session.OpenDatabase(10000);
        session.DeleteDatabase(db);
        db = session.OpenDatabase(20001);
        session.DeleteDatabase(db);
        db = session.OpenDatabase(30001);
        session.DeleteDatabase(db);
        db = session.OpenDatabase(40001);
        session.DeleteDatabase(db);
        session.Commit();
        Directory.Delete(copyDir, true);
      }

      System.GC.Collect();
      System.GC.WaitForPendingFinalizers();

      using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
      {
        Assert.True(session.OptimisticLocking);
      }
    }