Beispiel #1
0
        private void DoBackupModule(IDataWriteOperator writer, DbFactory dbFactory, IModuleSpecifics module)
        {
            Logger.Debug("begin saving data for module {0}", module.ModuleName);
            var tablesToProcess = module.Tables.Where(t => !IgnoredTables.Contains(t.Name) && t.InsertMethod != InsertMethod.None).ToList();
            var tablesCount     = tablesToProcess.Count;
            var tablesProcessed = 0;

            using (var connection = dbFactory.OpenConnection())
            {
                foreach (var table in tablesToProcess)
                {
                    Logger.Debug("begin load table {0}", table.Name);
                    using (var data = new DataTable(table.Name))
                    {
                        ActionInvoker.Try(
                            state =>
                        {
                            data.Clear();
                            int counts;
                            var offset = 0;
                            do
                            {
                                var t                     = (TableInfo)state;
                                var dataAdapter           = dbFactory.CreateDataAdapter();
                                dataAdapter.SelectCommand = module.CreateSelectCommand(connection.Fix(), TenantId, t, Limit, offset).WithTimeout(600);
                                counts                    = ((DbDataAdapter)dataAdapter).Fill(data);
                                offset                   += Limit;
                            } while (counts == Limit);
                        },
                            table,
                            maxAttempts: 5,
                            onFailure: error => { throw ThrowHelper.CantBackupTable(table.Name, error); },
                            onAttemptFailure: error => Logger.Warn("backup attempt failure: {0}", error));

                        foreach (var col in data.Columns.Cast <DataColumn>().Where(col => col.DataType == typeof(DateTime)))
                        {
                            col.DateTimeMode = DataSetDateTime.Unspecified;
                        }

                        module.PrepareData(data);

                        Logger.Debug("end load table {0}", table.Name);

                        Logger.Debug("begin saving table {0}", table.Name);

                        var tmp = Path.GetTempFileName();
                        using (var file = File.OpenWrite(tmp))
                        {
                            data.WriteXml(file, XmlWriteMode.WriteSchema);
                            data.Clear();
                        }

                        writer.WriteEntry(KeyHelper.GetTableZipKey(module, data.TableName), tmp);
                        File.Delete(tmp);

                        Logger.Debug("end saving table {0}", table.Name);
                    }

                    SetCurrentStepProgress((int)((++tablesProcessed * 100) / (double)tablesCount));
                }
            }
            Logger.Debug("end saving data for module {0}", module.ModuleName);
        }
        private void DoDump(IDataWriteOperator writer)
        {
            var tmp = Path.GetTempFileName();

            File.AppendAllText(tmp, true.ToString());
            writer.WriteEntry(KeyHelper.GetDumpKey(), tmp);

            List <string> tables;
            var           files = new List <BackupFileInfo>();

            using (var dbManager = new DbManager("default", 100000))
            {
                tables = dbManager.ExecuteList("show tables;").Select(r => Convert.ToString(r[0])).ToList();
            }

            var stepscount = tables.Count * 4; // (schema + data) * (dump + zip)

            if (ProcessStorage)
            {
                var tenants = CoreContext.TenantManager.GetTenants(false).Select(r => r.TenantId);
                foreach (var t in tenants)
                {
                    files.AddRange(GetFiles(t));
                }
                stepscount += files.Count * 2 + 1;
                Logger.Debug("files:" + files.Count);
            }

            SetStepsCount(stepscount);

            var excluded = ModuleProvider.AllModules.Where(r => IgnoredModules.Contains(r.ModuleName)).SelectMany(r => r.Tables).Select(r => r.Name).ToList();

            excluded.AddRange(IgnoredTables);
            excluded.Add("res_");

            var dir       = Path.GetDirectoryName(BackupFilePath);
            var subDir    = Path.Combine(dir, Path.GetFileNameWithoutExtension(BackupFilePath));
            var schemeDir = Path.Combine(subDir, KeyHelper.GetDatabaseSchema());
            var dataDir   = Path.Combine(subDir, KeyHelper.GetDatabaseData());

            if (!Directory.Exists(schemeDir))
            {
                Directory.CreateDirectory(schemeDir);
            }
            if (!Directory.Exists(dataDir))
            {
                Directory.CreateDirectory(dataDir);
            }

            var dict = tables.ToDictionary(t => t, SelectCount);

            tables.Sort((pair1, pair2) => dict[pair1].CompareTo(dict[pair2]));

            for (var i = 0; i < tables.Count; i += TasksLimit)
            {
                var tasks = new List <Task>(TasksLimit * 2);
                for (var j = 0; j < TasksLimit && i + j < tables.Count; j++)
                {
                    var t = tables[i + j];
                    tasks.Add(Task.Run(() => DumpTableScheme(t, schemeDir)));
                    if (!excluded.Any(t.StartsWith))
                    {
                        tasks.Add(Task.Run(() => DumpTableData(t, dataDir, dict[t])));
                    }
                    else
                    {
                        SetStepCompleted(2);
                    }
                }

                Task.WaitAll(tasks.ToArray());

                ArchiveDir(writer, subDir);
            }

            Logger.DebugFormat("dir remove start {0}", subDir);
            Directory.Delete(subDir, true);
            Logger.DebugFormat("dir remove end {0}", subDir);

            if (ProcessStorage)
            {
                DoDumpStorage(writer, files);
            }
        }
        private void DoBackupStorage(IDataWriteOperator writer, List <IGrouping <string, BackupFileInfo> > fileGroups)
        {
            Logger.Debug("begin backup storage");

            foreach (var group in fileGroups)
            {
                var filesProcessed = 0;
                var filesCount     = group.Count();

                foreach (var file in group)
                {
                    var storage = StorageFactory.GetStorage(ConfigPath, TenantId.ToString(), group.Key);
                    var file1   = file;
                    ActionInvoker.Try(state =>
                    {
                        var f = (BackupFileInfo)state;
                        using (var fileStream = storage.GetReadStream(f.Domain, f.Path))
                        {
                            var tmp = Path.GetTempFileName();
                            try
                            {
                                using (var tmpFile = File.OpenWrite(tmp))
                                {
                                    fileStream.CopyTo(tmpFile);
                                }

                                writer.WriteEntry(file1.GetZipKey(), tmp);
                            }
                            finally
                            {
                                if (File.Exists(tmp))
                                {
                                    File.Delete(tmp);
                                }
                            }
                        }
                    }, file, 5, error => Logger.WarnFormat("can't backup file ({0}:{1}): {2}", file1.Module, file1.Path, error));

                    SetCurrentStepProgress((int)(++filesProcessed * 100 / (double)filesCount));
                }
            }

            var restoreInfoXml = new XElement(
                "storage_restore",
                fileGroups
                .SelectMany(group => group.Select(file => (object)file.ToXElement()))
                .ToArray());

            var tmpPath = Path.GetTempFileName();

            using (var tmpFile = File.OpenWrite(tmpPath))
            {
                restoreInfoXml.WriteTo(tmpFile);
            }

            writer.WriteEntry(KeyHelper.GetStorageRestoreInfoZipKey(), tmpPath);
            File.Delete(tmpPath);


            Logger.Debug("end backup storage");
        }
        private void RestoreFromDump(IDataReadOperator dataReader)
        {
            var keyBase  = KeyHelper.GetDatabaseSchema();
            var keys     = dataReader.GetEntries(keyBase).Select(r => Path.GetFileName(r)).ToList();
            var upgrades = new List <string>();

            var upgradesPath = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), UpgradesPath));

            if (!string.IsNullOrEmpty(upgradesPath) && Directory.Exists(upgradesPath))
            {
                upgrades = Directory.GetFiles(upgradesPath).ToList();
            }

            var stepscount = keys.Count * 2 + upgrades.Count;

            if (ProcessStorage)
            {
                var storageModules = StorageFactory.GetModuleList(ConfigPath).Where(IsStorageModuleAllowed);
                var tenants        = CoreContext.TenantManager.GetTenants(false);

                stepscount += storageModules.Count() * tenants.Count;

                SetStepsCount(stepscount + 1);

                DoDeleteStorage(storageModules, tenants);
            }
            else
            {
                SetStepsCount(stepscount);
            }


            for (var i = 0; i < keys.Count; i += TasksLimit)
            {
                var tasks = new List <Task>(TasksLimit * 2);

                for (var j = 0; j < TasksLimit && i + j < keys.Count; j++)
                {
                    var key1 = Path.Combine(KeyHelper.GetDatabaseSchema(), keys[i + j]);
                    tasks.Add(RestoreFromDumpFile(dataReader, key1).ContinueWith(r => RestoreFromDumpFile(dataReader, KeyHelper.GetDatabaseData(key1.Substring(keyBase.Length + 1)))));
                }

                Task.WaitAll(tasks.ToArray());
            }

            var comparer = new SqlComparer();

            foreach (var u in upgrades.OrderBy(Path.GetFileName, comparer))
            {
                using (var s = File.OpenRead(u))
                {
                    if (u.Contains(".upgrade."))
                    {
                        RunMysqlFile(s, null).Wait();
                    }
                    else if (u.Contains(".data") || u.Contains(".upgrade"))
                    {
                        RunMysqlProcedure(s).Wait();
                    }
                    else
                    {
                        RunMysqlFile(s).Wait();
                    }
                }

                SetStepCompleted();
            }
        }
        public override void RunJob()
        {
            Logger.Debug("begin restore portal");

            Logger.Debug("begin restore data");

            using (var dataReader = new ZipReadOperator(BackupFilePath))
            {
                using (var entry = dataReader.GetEntry(KeyHelper.GetDumpKey()))
                {
                    Dump = entry != null && CoreContext.Configuration.Standalone;
                }

                var dbFactory = new DbFactory(ConfigPath);
                if (Dump)
                {
                    RestoreFromDump(dataReader);
                }
                else
                {
                    var modulesToProcess = GetModulesToProcess().ToList();
                    SetStepsCount(ProcessStorage ? modulesToProcess.Count + 1 : modulesToProcess.Count);

                    foreach (var module in modulesToProcess)
                    {
                        var restoreTask = new RestoreDbModuleTask(Logger, module, dataReader, _columnMapper, dbFactory, ReplaceDate, Dump);
                        restoreTask.ProgressChanged += (sender, args) => SetCurrentStepProgress(args.Progress);
                        foreach (var tableName in IgnoredTables)
                        {
                            restoreTask.IgnoreTable(tableName);
                        }
                        restoreTask.RunJob();
                    }
                }

                Logger.Debug("end restore data");

                if (ProcessStorage)
                {
                    if (CoreContext.Configuration.Standalone)
                    {
                        Logger.Debug("clear cache");
                        AscCache.ClearCache();
                    }
                    DoRestoreStorage(dataReader);
                }
                if (UnblockPortalAfterCompleted)
                {
                    SetTenantActive(dbFactory, _columnMapper.GetTenantMapping());
                }
            }

            if (CoreContext.Configuration.Standalone)
            {
                Logger.Debug("refresh license");
                try
                {
                    LicenseReader.RejectLicense();
                }
                catch (Exception ex)
                {
                    Logger.Error(ex);
                }

                Logger.Debug("clear cache");
                AscCache.ClearCache();
            }

            Logger.Debug("end restore portal");
        }
        private void RestoreFromDump(IDataReadOperator dataReader, DbFactory dbFactory)
        {
            var keyBase  = KeyHelper.GetDatabaseSchema();
            var keys     = dataReader.Entries.Where(r => r.StartsWith(keyBase)).ToList();
            var upgrades = new List <string>();

            if (!string.IsNullOrEmpty(UpgradesPath) && Directory.Exists(UpgradesPath))
            {
                upgrades = Directory.GetFiles(UpgradesPath).ToList();
            }

            var stepscount = keys.Count * 2 + upgrades.Count;

            SetStepsCount(ProcessStorage ? stepscount + 1 : stepscount);

            for (var i = 0; i < keys.Count; i += TasksLimit)
            {
                var tasks = new List <Task>(TasksLimit * 2);

                for (var j = 0; j < TasksLimit && i + j < keys.Count; j++)
                {
                    var key1 = keys[i + j];
                    tasks.Add(RestoreFromDumpFile(dataReader, key1).ContinueWith(r => RestoreFromDumpFile(dataReader, KeyHelper.GetDatabaseData(key1.Substring(keyBase.Length + 1)))));
                }

                Task.WaitAll(tasks.ToArray());
            }

            var comparer = new SqlComparer();

            foreach (var u in upgrades.OrderBy(Path.GetFileName, comparer))
            {
                RunMysqlFile(dbFactory, u, true);
                SetStepCompleted();
            }
        }
Beispiel #7
0
        private void RestoreTable(IDbConnection connection, TableInfo tableInfo, ref int transactionsCommited, ref int rowsInserted)
        {
            using (var stream = _reader.GetEntry(KeyHelper.GetTableZipKey(_module, tableInfo.Name)))
            {
                var lowImportanceRelations = _module
                                             .TableRelations
                                             .Where(r => string.Equals(r.ParentTable, tableInfo.Name, StringComparison.InvariantCultureIgnoreCase))
                                             .Where(r => r.Importance == RelationImportance.Low && !r.IsSelfRelation())
                                             .Select(r => Tuple.Create(r, _module.Tables.Single(t => t.Name == r.ChildTable)))
                                             .ToList();

                foreach (IEnumerable <DataRowInfo> rows in GetRows(tableInfo, stream).Skip(transactionsCommited * TransactionLength).MakeParts(TransactionLength))
                {
                    using (var transaction = connection.BeginTransaction())
                    {
                        int rowsSuccess = 0;
                        foreach (DataRowInfo row in rows)
                        {
                            if (_replaceDate)
                            {
                                foreach (var column in tableInfo.DateColumns)
                                {
                                    _columnMapper.SetDateMapping(tableInfo.Name, column, row[column.Key]);
                                }
                            }

                            object oldIdValue = null;
                            object newIdValue = null;

                            if (tableInfo.HasIdColumn())
                            {
                                oldIdValue = row[tableInfo.IdColumn];
                                newIdValue = _columnMapper.GetMapping(tableInfo.Name, tableInfo.IdColumn, oldIdValue);
                                if (newIdValue == null)
                                {
                                    if (tableInfo.IdType == IdType.Guid)
                                    {
                                        newIdValue = Guid.NewGuid().ToString("D");
                                    }
                                    else if (tableInfo.IdType == IdType.Integer)
                                    {
                                        newIdValue = connection
                                                     .CreateCommand(string.Format("select max({0}) from {1};", tableInfo.IdColumn, tableInfo.Name))
                                                     .WithTimeout(120)
                                                     .ExecuteScalar <int>() + 1;
                                    }
                                }
                                if (newIdValue != null)
                                {
                                    _columnMapper.SetMapping(tableInfo.Name, tableInfo.IdColumn, oldIdValue, newIdValue);
                                }
                            }

                            var insertCommand = _module.CreateInsertCommand(connection, _columnMapper, tableInfo, row);
                            if (insertCommand == null)
                            {
                                WarnCantInsertRow(row);
                                _columnMapper.Rollback();
                                continue;
                            }
                            insertCommand.WithTimeout(120).ExecuteNonQuery();
                            rowsSuccess++;

                            if (tableInfo.HasIdColumn() && tableInfo.IdType == IdType.Autoincrement)
                            {
                                var lastIdCommand = _factory.CreateLastInsertIdCommand(_module.ConnectionStringName);
                                lastIdCommand.Connection = connection;
                                newIdValue = Convert.ToInt32(lastIdCommand.ExecuteScalar());
                                _columnMapper.SetMapping(tableInfo.Name, tableInfo.IdColumn, oldIdValue, newIdValue);
                            }

                            _columnMapper.Commit();

                            foreach (Tuple <RelationInfo, TableInfo> relation in lowImportanceRelations)
                            {
                                if (!relation.Item2.HasTenantColumn())
                                {
                                    InvokeWarning("Table {0} does not contain tenant id column. Can't apply low importance relations on such tables.", relation.Item2.Name);
                                    continue;
                                }

                                object oldValue = row[relation.Item1.ParentColumn];
                                object newValue = _columnMapper.GetMapping(relation.Item1.ParentTable, relation.Item1.ParentColumn, oldValue);

                                connection.CreateCommand(string.Format("update {0} set {1} = {2} where {1} = {3} and {4} = {5}",
                                                                       relation.Item1.ChildTable,
                                                                       relation.Item1.ChildColumn,
                                                                       newValue is string? "'" + newValue + "'" : newValue,
                                                                       oldValue is string? "'" + oldValue + "'" : oldValue,
                                                                       relation.Item2.TenantColumn,
                                                                       _columnMapper.GetTenantMapping())).WithTimeout(120).ExecuteNonQuery();
                            }
                        }

                        transaction.Commit();
                        transactionsCommited++;
                        rowsInserted += rowsSuccess;
                    }
                }
            }
        }
        private void DoBackupStorage(IDataWriteOperator writer, DbFactory dbFactory)
        {
            Logger.Debug("begin backup storage");

            var files   = GetFilesToProcess();
            var exclude = new List <string>();

            using (var db = dbFactory.OpenConnection())
                using (var command = db.CreateCommand())
                {
                    command.CommandText = "select storage_path from backup_backup where tenant_id = " + TenantId + " and storage_type = 0 and storage_path is not null";
                    using (var reader = command.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            exclude.Add(reader.GetString(0));
                        }
                    }
                }
            files = files.Where(f => !exclude.Any(e => f.Path.Contains(string.Format("/file_{0}/", e))));

            var fileGroups      = files.GroupBy(file => file.Module).ToList();
            var groupsProcessed = 0;

            foreach (var group in fileGroups)
            {
                var storage = StorageFactory.GetStorage(ConfigPath, TenantId.ToString(), group.Key);
                foreach (var file in group)
                {
                    ActionInvoker.Try(state =>
                    {
                        var f = (BackupFileInfo)state;
                        using (var fileStream = storage.GetReadStream(f.Domain, f.Path))
                        {
                            var tmp = Path.GetTempFileName();
                            try
                            {
                                using (var tmpFile = File.OpenWrite(tmp))
                                {
                                    fileStream.CopyTo(tmpFile);
                                }

                                writer.WriteEntry(KeyHelper.GetFileZipKey(file), tmp);
                            }
                            finally
                            {
                                if (File.Exists(tmp))
                                {
                                    File.Delete(tmp);
                                }
                            }
                        }
                    }, file, 5, error => Logger.Warn("can't backup file ({0}:{1}): {2}", file.Module, file.Path, error));
                }
                SetCurrentStepProgress((int)(++groupsProcessed * 100 / (double)fileGroups.Count));
            }

            if (fileGroups.Count == 0)
            {
                SetStepCompleted();
            }

            var restoreInfoXml = new XElement(
                "storage_restore",
                fileGroups
                .SelectMany(group => group.Select(file => (object)file.ToXElement()))
                .ToArray());

            var tmpPath = Path.GetTempFileName();

            using (var tmpFile = File.OpenWrite(tmpPath))
            {
                restoreInfoXml.WriteTo(tmpFile);
            }

            writer.WriteEntry(KeyHelper.GetStorageRestoreInfoZipKey(), tmpPath);
            File.Delete(tmpPath);


            Logger.Debug("end backup storage");
        }
Beispiel #9
0
        private void DoRestoreStorage(IDataReadOperator dataReader)
        {
            Logger.Debug("begin restore storage");

            var fileGroups      = GetFilesToProcess(dataReader).GroupBy(file => file.Module).ToList();
            var groupsProcessed = 0;

            foreach (var group in fileGroups)
            {
                var storage         = StorageFactory.GetStorage(ConfigPath, _columnMapper.GetTenantMapping().ToString(), group.Key);
                var quotaController = storage.QuotaController;
                try
                {
                    storage.SetQuotaController(null);
                    foreach (var file in group)
                    {
                        var adjustedPath = file.Path;
                        var module       = ModuleProvider.GetByStorageModule(file.Module, file.Domain);
                        if (module == null || module.TryAdjustFilePath(_columnMapper, ref adjustedPath))
                        {
                            using (var stream = dataReader.GetEntry(KeyHelper.GetFileZipKey(file)))
                            {
                                try
                                {
                                    storage.Save(file.Domain, adjustedPath, module != null ? module.PrepareData(KeyHelper.GetFileZipKey(file), stream, _columnMapper) : stream);
                                }
                                catch (Exception error)
                                {
                                    Logger.Warn("can't restore file ({0}:{1}): {2}", file.Module, file.Path, error);
                                }
                            }
                        }
                    }
                }
                finally
                {
                    if (quotaController != null)
                    {
                        storage.SetQuotaController(quotaController);
                    }
                }
                SetCurrentStepProgress((int)(++groupsProcessed * 100 / (double)fileGroups.Count));
            }

            if (fileGroups.Count == 0)
            {
                SetStepCompleted();
            }
            Logger.Debug("end restore storage");
        }
        private void RestoreFromDump(IDataReadOperator dataReader)
        {
            var keyBase  = KeyHelper.GetDatabaseSchema();
            var keys     = dataReader.GetEntries(keyBase).Select(r => Path.GetFileName(r)).ToList();
            var dbs      = dataReader.GetDirectories("").Where(r => Path.GetFileName(r).StartsWith("mailservice")).Select(r => Path.GetFileName(r)).ToList();
            var upgrades = new List <string>();

            var upgradesPath = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), UpgradesPath));

            if (!string.IsNullOrEmpty(upgradesPath) && Directory.Exists(upgradesPath))
            {
                upgrades = Directory.GetFiles(upgradesPath).ToList();
            }

            var stepscount = keys.Count * 2 + upgrades.Count;

            Dictionary <string, List <string> > databases = new Dictionary <string, List <string> >();

            foreach (var db in dbs)
            {
                var keys1 = dataReader.GetEntries(db + "/" + keyBase).Select(k => Path.GetFileName(k)).ToList();
                stepscount += keys1.Count() * 2;
                databases.Add(db, keys1);
            }

            if (ProcessStorage)
            {
                var storageModules = StorageFactory.GetModuleList(ConfigPath).Where(IsStorageModuleAllowed);
                var tenants        = CoreContext.TenantManager.GetTenants(false);

                stepscount += storageModules.Count() * tenants.Count;

                SetStepsCount(stepscount + 1);

                DoDeleteStorage(storageModules, tenants);
            }
            else
            {
                SetStepsCount(stepscount);
            }

            for (var i = 0; i < keys.Count; i += TasksLimit)
            {
                var tasks = new List <Task>(TasksLimit * 2);

                for (var j = 0; j < TasksLimit && i + j < keys.Count; j++)
                {
                    var key1 = Path.Combine(KeyHelper.GetDatabaseSchema(), keys[i + j]);
                    var key2 = Path.Combine(KeyHelper.GetDatabaseData(), keys[i + j]);
                    tasks.Add(RestoreFromDumpFile(dataReader, key1, key2));
                }

                Task.WaitAll(tasks.ToArray());
            }

            using (var dbManager = DbManager.FromHttpContext("default", 100000))
            {
                dbManager.ExecuteList("select id, connection_string from mail_server_server").ForEach(r =>
                {
                    RegisterDatabase((int)r[0], JsonConvert.DeserializeObject <Dictionary <string, object> >(Convert.ToString(r[1]))["DbConnection"].ToString());
                });
            }

            foreach (var database in databases)
            {
                for (var i = 0; i < database.Value.Count; i += TasksLimit)
                {
                    var tasks = new List <Task>(TasksLimit * 2);

                    for (var j = 0; j < TasksLimit && i + j < database.Value.Count; j++)
                    {
                        var key1 = Path.Combine(database.Key, KeyHelper.GetDatabaseSchema(), database.Value[i + j]);
                        var key2 = Path.Combine(database.Key, KeyHelper.GetDatabaseData(), database.Value[i + j]);
                        tasks.Add(RestoreFromDumpFile(dataReader, key1, key2, database.Key));
                    }

                    Task.WaitAll(tasks.ToArray());
                }
            }

            var comparer = new SqlComparer();

            foreach (var u in upgrades.OrderBy(Path.GetFileName, comparer))
            {
                using (var s = File.OpenRead(u))
                {
                    if (u.Contains(".upgrade."))
                    {
                        RunMysqlFile(s, null).Wait();
                    }
                    else if (u.Contains(".data") || u.Contains(".upgrade"))
                    {
                        RunMysqlProcedure(s).Wait();
                    }
                    else
                    {
                        RunMysqlFile(s, "default").Wait();
                    }
                }

                SetStepCompleted();
            }
        }
        private void DoDump(IDataWriteOperator writer, string dbName, List <string> tables)
        {
            var excluded = ModuleProvider.AllModules.Where(r => IgnoredModules.Contains(r.ModuleName)).SelectMany(r => r.Tables).Select(r => r.Name).ToList();

            excluded.AddRange(IgnoredTables);
            excluded.Add("res_");

            var dir       = Path.GetDirectoryName(BackupFilePath);
            var subDir    = Path.Combine(dir, Path.GetFileNameWithoutExtension(BackupFilePath));
            var schemeDir = "";
            var dataDir   = "";

            if (dbName == "default")
            {
                schemeDir = Path.Combine(subDir, KeyHelper.GetDatabaseSchema());
                dataDir   = Path.Combine(subDir, KeyHelper.GetDatabaseData());
            }
            else
            {
                schemeDir = Path.Combine(subDir, dbName, KeyHelper.GetDatabaseSchema());
                dataDir   = Path.Combine(subDir, dbName, KeyHelper.GetDatabaseData());
            }

            if (!Directory.Exists(schemeDir))
            {
                Directory.CreateDirectory(schemeDir);
            }
            if (!Directory.Exists(dataDir))
            {
                Directory.CreateDirectory(dataDir);
            }

            var dict = new Dictionary <string, int>();

            foreach (var table in tables)
            {
                dict.Add(table, SelectCount(table, dbName));
            }
            tables.Sort((pair1, pair2) => dict[pair1].CompareTo(dict[pair2]));

            for (var i = 0; i < tables.Count; i += TasksLimit)
            {
                var tasks = new List <Task>(TasksLimit * 2);
                for (var j = 0; j < TasksLimit && i + j < tables.Count; j++)
                {
                    var t = tables[i + j];
                    tasks.Add(Task.Run(() => DumpTableScheme(t, schemeDir, dbName)));
                    if (!excluded.Any(t.StartsWith))
                    {
                        tasks.Add(Task.Run(() => DumpTableData(t, dataDir, dict[t], dbName, writer)));
                    }
                    else
                    {
                        SetStepCompleted(2);
                    }
                }

                Task.WaitAll(tasks.ToArray());

                ArchiveDir(writer, subDir);
            }
        }
        private void DoDump(IDataWriteOperator writer)
        {
            Dictionary <string, List <string> > databases = new Dictionary <string, List <string> >();

            using (var dbManager = DbManager.FromHttpContext("default", 100000))
            {
                dbManager.ExecuteList("select id, connection_string from mail_server_server").ForEach((r =>
                {
                    var dbName = GetDbName((int)r[0], JsonConvert.DeserializeObject <Dictionary <string, object> >(Convert.ToString(r[1]))["DbConnection"].ToString());
                    using (var dbManager1 = DbManager.FromHttpContext(dbName, 100000))
                    {
                        var tables = dbManager1.ExecuteList("show tables;").Select(res => Convert.ToString(res[0])).ToList();
                        databases.Add(dbName, tables);
                    }
                }));
            }

            using (var dbManager = DbManager.FromHttpContext("default", 100000))
            {
                var tables = dbManager.ExecuteList("show tables;").Select(res => Convert.ToString(res[0])).ToList();
                databases.Add("default", tables);
            }

            using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(true.ToString())))
            {
                writer.WriteEntry(KeyHelper.GetDumpKey(), stream);
            }

            var files = new List <BackupFileInfo>();

            var stepscount = 0;

            foreach (var db in databases)
            {
                stepscount += db.Value.Count * 4;// (schema + data) * (dump + zip)
            }
            if (ProcessStorage)
            {
                var tenants = CoreContext.TenantManager.GetTenants(false).Select(r => r.TenantId);
                foreach (var t in tenants)
                {
                    files.AddRange(GetFiles(t));
                }
                stepscount += files.Count * 2 + 1;
                Logger.Debug("files:" + files.Count);
            }

            SetStepsCount(stepscount);

            foreach (var db in databases)
            {
                DoDump(writer, db.Key, db.Value);
            }
            var dir    = Path.GetDirectoryName(BackupFilePath);
            var subDir = Path.Combine(dir, Path.GetFileNameWithoutExtension(BackupFilePath));

            Logger.DebugFormat("dir remove start {0}", subDir);
            Directory.Delete(subDir, true);
            Logger.DebugFormat("dir remove end {0}", subDir);

            if (ProcessStorage)
            {
                DoDumpStorage(writer, files);
            }
        }