Game uses hikaricp for all connection pooling. Connection count set dynamically.

src/engine/db/archive/BaneRecord.java

@@ -10,6 +10,7 @@
 package engine.db.archive;
 
 import engine.Enum;
+import engine.gameManager.DbManager;
 import engine.objects.Bane;
 import engine.objects.City;
 import engine.workthreads.WarehousePushThread;
@@ -134,7 +135,7 @@ public class BaneRecord extends DataRecord {
 
 		DateTime outDateTime = null;
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildDateTimeQueryStatement(connection, city);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -145,7 +146,7 @@ public class BaneRecord extends DataRecord {
 			}
 
 		} catch (SQLException e) {
-			Logger.error( e.toString());
+			Logger.error(e.toString());
 		}
 
 		return outDateTime;
@@ -166,13 +167,13 @@ public class BaneRecord extends DataRecord {
 		if (bane == null)
 			return;
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildUpdateLiveDateStatement(connection, bane, dateTime)) {
 
 			statement.execute();
 
 		} catch (SQLException e) {
-			Logger.error( e.toString());
+			Logger.error(e.toString());
 		}
 	}
 
@@ -203,7 +204,7 @@ public class BaneRecord extends DataRecord {
 
 	public static void updateResolution(Bane bane, RecordEventType eventType) {
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildUpdateResolutionStatement(connection, bane, eventType)) {
 
 			statement.execute();
@@ -223,7 +224,7 @@ public class BaneRecord extends DataRecord {
 		dividerString = "--------------------------------" + newLine;
 		queryString = "CALL `baneHistory`()";
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = connection.prepareCall(queryString);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -253,7 +254,7 @@ public class BaneRecord extends DataRecord {
 
 		WarehousePushThread.baneDelta = 0;
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = localConnection.prepareStatement(queryString, ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); // Make this an updatable result set as we'll reset the dirty flag as we go along
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -338,13 +339,13 @@ public class BaneRecord extends DataRecord {
 
 	public void write() {
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildBaneInsertStatement(connection)) {
 
 			statement.execute();
 
 		} catch (SQLException e) {
-			Logger.error( e.toString());
+			Logger.error(e.toString());
 		}
 
 	}

src/engine/db/archive/CharacterRecord.java

@@ -10,6 +10,7 @@
 package engine.db.archive;
 
 import engine.Enum;
+import engine.gameManager.DbManager;
 import engine.objects.Guild;
 import engine.objects.PlayerCharacter;
 import engine.workthreads.WarehousePushThread;
@@ -109,13 +110,13 @@ public class CharacterRecord extends DataRecord {
 
     public static void advanceKillCounter(PlayerCharacter player) {
 
-        try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = buildKillCounterStatement(connection, player)) {
 
             statement.execute();
 
         } catch (SQLException e) {
-            Logger.error( e.toString());
+            Logger.error(e.toString());
         }
 
     }
@@ -136,13 +137,13 @@ public class CharacterRecord extends DataRecord {
 
     public static void advanceDeathCounter(PlayerCharacter player) {
 
-        try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = buildDeathCounterStatement(connection, player)) {
 
             statement.execute();
 
         } catch (SQLException e) {
-            Logger.error( e.toString());
+            Logger.error(e.toString());
         }
 
     }
@@ -163,13 +164,13 @@ public class CharacterRecord extends DataRecord {
 
     public static void updatePromotionClass(PlayerCharacter player) {
 
-        try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = buildUpdatePromotionStatement(connection, player)) {
 
             statement.execute();
 
         } catch (SQLException e) {
-            Logger.error( e.toString());
+            Logger.error(e.toString());
         }
 
     }
@@ -197,7 +198,7 @@ public class CharacterRecord extends DataRecord {
 
         WarehousePushThread.charDelta = 0;
 
-        try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+        try (Connection localConnection = DbManager.getConnection();
              PreparedStatement statement = localConnection.prepareStatement(queryString, ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); // Make this an updatable result set as we'll reset the dirty flag as we go along
              ResultSet rs = statement.executeQuery()) {
 
@@ -263,13 +264,13 @@ public class CharacterRecord extends DataRecord {
 
     public void write() {
 
-        try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = buildCharacterInsertStatement(connection, this.player)) {
 
             statement.execute();
 
         } catch (SQLException e) {
-            Logger.error( "Error writing character record " + e.toString());
+            Logger.error("Error writing character record " + e.toString());
 
         }
     }

src/engine/db/archive/CityRecord.java

@@ -10,6 +10,7 @@
 package engine.db.archive;
 
 import engine.Enum;
+import engine.gameManager.DbManager;
 import engine.objects.City;
 import engine.workthreads.WarehousePushThread;
 
@@ -126,7 +127,7 @@ public class CityRecord extends DataRecord {
 
 	public void write() {
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = this.buildCityInsertStatement(connection)) {
 
 			statement.execute();

src/engine/db/archive/DataWarehouse.java

@@ -12,6 +12,7 @@ package engine.db.archive;
 import com.zaxxer.hikari.HikariConfig;
 import com.zaxxer.hikari.HikariDataSource;
 import engine.gameManager.ConfigManager;
+import engine.gameManager.DbManager;
 import engine.util.Hasher;
 import org.pmw.tinylog.Logger;
 
@@ -27,14 +28,13 @@ public class DataWarehouse implements Runnable {
 
     public static final Hasher hasher = new Hasher("Cthulhu Owns Joo");
     private static final LinkedBlockingQueue<DataRecord> recordQueue = new LinkedBlockingQueue<>();
-    public static HikariDataSource connectionPool = null;
     public static HikariDataSource remoteConnectionPool = null;
 
     public DataWarehouse() {
 
         Logger.info("Configuring local Database Connection Pool...");
 
-        configureConnectionPool();
+        DbManager.configureConnectionPool();
 
         // If WarehousePush is disabled
         // then early exit
@@ -72,11 +72,7 @@ public class DataWarehouse implements Runnable {
         String queryString;
         String hashString;
 
-        try {
-            connection = DataWarehouse.connectionPool.getConnection();
-        } catch (SQLException e) {
-            e.printStackTrace();
-        }
+        connection = DbManager.getConnection();
 
         if (connection == null) {
             Logger.error("Null connection when writing zone hash.");
@@ -140,11 +136,7 @@ public class DataWarehouse implements Runnable {
         String queryString;
         ResultSet resultSet;
 
-        try {
-            connection = DataWarehouse.connectionPool.getConnection();
-        } catch (SQLException e) {
-            e.printStackTrace();
-        }
+        connection = DbManager.getConnection();
 
         if (connection == null) {
             Logger.error("Null connection during char record lookup");
@@ -282,27 +274,6 @@ public class DataWarehouse implements Runnable {
         }
     }
 
-    private static void configureConnectionPool() {
-
-        HikariConfig config = new HikariConfig();
-
-        config.setMaximumPoolSize(10);
-
-        config.setJdbcUrl("jdbc:mysql://" +  ConfigManager.MB_DATABASE_ADDRESS.getValue() +
-                ":" +  ConfigManager.MB_DATABASE_PORT.getValue() + "/" +
-                ConfigManager.MB_DATABASE_NAME.getValue());
-        config.setUsername(ConfigManager.MB_DATABASE_USER.getValue());
-        config.setPassword( ConfigManager.MB_DATABASE_PASS.getValue());
-        config.addDataSourceProperty("characterEncoding", "utf8");
-        config.addDataSourceProperty("cachePrepStmts", "true");
-        config.addDataSourceProperty("prepStmtCacheSize", "250");
-        config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
-
-        connectionPool = new HikariDataSource(config); // setup the connection pool
-
-        Logger.info("Local warehouse database connection configured");
-    }
-
     private static void configureRemoteConnectionPool() {
 
         HikariConfig config = new HikariConfig();

src/engine/db/archive/GuildRecord.java

@@ -11,6 +11,7 @@ package engine.db.archive;
 
 import engine.Enum;
 import engine.Enum.RecordEventType;
+import engine.gameManager.DbManager;
 import engine.objects.Guild;
 import engine.workthreads.WarehousePushThread;
 
@@ -164,7 +165,7 @@ public class GuildRecord extends DataRecord {
 
 	public void write() {
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = this.buildGuildInsertStatement(connection)) {
 
             statement.execute();

src/engine/db/archive/MineRecord.java

@@ -10,6 +10,7 @@
 package engine.db.archive;
 
 import engine.Enum;
+import engine.gameManager.DbManager;
 import engine.objects.AbstractCharacter;
 import engine.objects.Mine;
 import engine.objects.PlayerCharacter;
@@ -131,7 +132,7 @@ public class MineRecord extends DataRecord {
 
     public void write() {
 
-        try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = this.buildMineInsertStatement(connection)) {
 
             statement.execute();

src/engine/db/archive/PvpRecord.java

@@ -9,6 +9,7 @@
 
 package engine.db.archive;
 
+import engine.gameManager.DbManager;
 import engine.gameManager.ZoneManager;
 import engine.math.Vector3fImmutable;
 import engine.objects.Guild;
@@ -90,7 +91,7 @@ public class PvpRecord extends DataRecord {
 
 		LinkedList<Integer> outList = new LinkedList<>();
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildHistoryStatement(connection, charUUID, historyType);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -132,7 +133,7 @@ public class PvpRecord extends DataRecord {
 		outString = "[LUA_PVP() DATA WAREHOUSE]" + newLine;
 		dividerString = "--------------------------------" + newLine;
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildLuaHistoryQueryStatement(connection, charUUID);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -293,13 +294,13 @@ public class PvpRecord extends DataRecord {
 
 	public void write() {
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = buildPvPInsertStatement(connection)) {
 
 			statement.execute();
 
 		} catch (SQLException e) {
-			Logger.error( e.toString());
+			Logger.error(e.toString());
 		}
 
 		// Warehouse record for this pvp event written if code path reaches here.

src/engine/db/archive/RealmRecord.java

@@ -10,6 +10,7 @@
 package engine.db.archive;
 
 import engine.Enum;
+import engine.gameManager.DbManager;
 import engine.objects.Realm;
 import engine.workthreads.WarehousePushThread;
 
@@ -128,7 +129,7 @@ public class RealmRecord extends DataRecord {
 
     public void write() {
 
-        try (Connection connection = DataWarehouse.connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = this.buildRealmInsertStatement(connection)) {
 
             statement.execute();

src/engine/db/handlers/dbHandlerBase.java

@@ -34,7 +34,7 @@ public abstract class dbHandlerBase {
 
 	protected final void prepareCallable(final String sql) {
 		try {
-			this.cs.set((CallableStatement) DbManager.getConn().prepareCall(sql, ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY));
+			this.cs.set((CallableStatement) DbManager.getConnection().prepareCall(sql, ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY));
 		} catch (SQLException e) {
 			Logger.error("DbManager.getConn", e);
 			Logger.error("SQL Error number: " + e.getErrorCode());

src/engine/gameManager/DbManager.java

@@ -8,11 +8,12 @@
 
 package engine.gameManager;
 
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
 import engine.Enum;
 import engine.Enum.GameObjectType;
 import engine.db.handlers.*;
 import engine.objects.*;
-import engine.pooling.ConnectionPool;
 import engine.server.MBServerStatics;
 import engine.util.Hasher;
 import org.pmw.tinylog.Logger;
@@ -26,28 +27,14 @@ import java.util.concurrent.ConcurrentHashMap;
 public enum DbManager {
 	DBMANAGER;
 
-	private static ConnectionPool connPool;
+	private static HikariDataSource connectionPool = null;
+
 	public static Hasher hasher;
 
 	//Local Object Caching
 
 	private static final EnumMap<GameObjectType, ConcurrentHashMap<Integer, AbstractGameObject>> objectCache = new EnumMap<>(GameObjectType.class);
 
-	public static boolean configureDatabaseLayer() {
-
-		boolean worked = true;
-
-		try {
-			DbManager.connPool = new ConnectionPool();
-			DbManager.connPool.fill(10);
-			DBMANAGER.hasher = new Hasher();
-		} catch (Exception e ) {
-			e.printStackTrace();
-			worked = false;
-		}
-		return worked;
-	}
-
 	public static AbstractGameObject getObject(GameObjectType objectType, int objectUUID) {
 
 		AbstractGameObject outObject = null;
@@ -87,9 +74,6 @@ public enum DbManager {
 		return outObject;
 	}
 
-	public static int getPoolSize(){
-		return connPool.getPoolSize();
-	}
 
 	public static boolean inCache(GameObjectType gameObjectType, int uuid) {
 
@@ -227,7 +211,7 @@ public enum DbManager {
 	}
 
 	public static PreparedStatement prepareStatement(String sql) throws SQLException {
-		return getConn().prepareStatement(sql, 1);
+		return getConnection().prepareStatement(sql, 1);
 	}
 
 	// Omg refactor this out, somebody!
@@ -259,15 +243,12 @@ public enum DbManager {
 	 * @return the conn
 	 */
 	//XXX I think we have a severe resource leak here! No one is putting the connections back!
-	public static Connection getConn() {
-		Connection conn = DbManager.connPool.get();
+	public static Connection getConnection() {
 		try {
-			if (!conn.isClosed())
-				DbManager.connPool.put(conn);
+			return DbManager.connectionPool.getConnection();
 		} catch (SQLException e) {
-			Logger.error( e.toString());
+			throw new RuntimeException(e);
 		}
-		return conn;
 	}
 
 	public static final dbAccountHandler AccountQueries = new dbAccountHandler();
@@ -312,4 +293,25 @@ public enum DbManager {
 	public static final dbHeightMapHandler HeightMapQueries = new dbHeightMapHandler();
 
 	public static final dbRunegateHandler RunegateQueries = new dbRunegateHandler();
+
+	public static void configureConnectionPool() {
+
+		HikariConfig config = new HikariConfig();
+
+		config.setMaximumPoolSize(Runtime.getRuntime().availableProcessors() * 2);
+
+		config.setJdbcUrl("jdbc:mysql://" + ConfigManager.MB_DATABASE_ADDRESS.getValue() +
+				":" + ConfigManager.MB_DATABASE_PORT.getValue() + "/" +
+				ConfigManager.MB_DATABASE_NAME.getValue());
+		config.setUsername(ConfigManager.MB_DATABASE_USER.getValue());
+		config.setPassword(ConfigManager.MB_DATABASE_PASS.getValue());
+		config.addDataSourceProperty("characterEncoding", "utf8");
+		config.addDataSourceProperty("cachePrepStmts", "true");
+		config.addDataSourceProperty("prepStmtCacheSize", "250");
+		config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
+
+		connectionPool = new HikariDataSource(config); // setup the connection pool
+
+		Logger.info("Local warehouse database connection configured");
+	}
 }

src/engine/gameManager/SimulationManager.java

@@ -10,7 +10,6 @@ package engine.gameManager;
 
 import engine.Enum;
 import engine.Enum.GameObjectType;
-import engine.db.archive.DataWarehouse;
 import engine.objects.AbstractGameObject;
 import engine.objects.City;
 import engine.objects.PlayerCharacter;
@@ -58,7 +57,7 @@ public enum SimulationManager {
 
 		String popString = "";
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement getPopString = connection.prepareStatement("CALL GET_POPULATION_STRING()");) {
 
 			ResultSet rs = getPopString.executeQuery();

src/engine/server/login/LoginServer.java

@@ -9,8 +9,6 @@
 
 package engine.server.login;
 
-import com.zaxxer.hikari.HikariConfig;
-import com.zaxxer.hikari.HikariDataSource;
 import engine.Enum;
 import engine.gameManager.*;
 import engine.job.JobScheduler;
@@ -52,7 +50,6 @@ public class LoginServer {
     // Instance variables
 
     private VersionInfoMsg versionInfoMessage;
-    public static HikariDataSource connectionPool = null;
     public static int population = 0;
     public static boolean worldServerRunning = false;
     public static boolean loginServerRunning = false;
@@ -172,9 +169,6 @@ public class LoginServer {
         this.versionInfoMessage = new VersionInfoMsg(ConfigManager.MB_MAJOR_VER.getValue(),
                 ConfigManager.MB_MINOR_VER.getValue());
 
-        Logger.info("Initializing Database Pool");
-        initDatabasePool();
-
         Logger.info("Initializing Database layer");
         initDatabaseLayer();
 
@@ -229,12 +223,12 @@ public class LoginServer {
         // Try starting a GOM <-> DB connection.
         try {
 
-            Logger.info("Configuring GameObjectManager to use Database: '"
+            Logger.info("Configuring Magicbane to use Database: '"
                     + ConfigManager.MB_DATABASE_NAME.getValue() + "' on "
                     + ConfigManager.MB_DATABASE_ADDRESS.getValue() + ':'
                     + ConfigManager.MB_DATABASE_PORT.getValue());
 
-            DbManager.configureDatabaseLayer();
+            DbManager.configureConnectionPool();
 
         } catch (Exception e) {
             Logger.error(e.getMessage());
@@ -365,33 +359,12 @@ public class LoginServer {
 
     }
 
-    private void initDatabasePool() {
-
-        HikariConfig config = new HikariConfig();
-
-        config.setMaximumPoolSize(33); // (16 cores 1 spindle)
-
-        config.setJdbcUrl("jdbc:mysql://" + ConfigManager.MB_DATABASE_ADDRESS.getValue() +
-                ":" + ConfigManager.MB_DATABASE_PORT.getValue() + "/" +
-                      ConfigManager.MB_DATABASE_NAME.getValue());
-        config.setUsername(ConfigManager.MB_DATABASE_USER.getValue());
-        config.setPassword(ConfigManager.MB_DATABASE_PASS.getValue());
-        config.addDataSourceProperty("characterEncoding", "utf8");
-        config.addDataSourceProperty("cachePrepStmts", "true");
-        config.addDataSourceProperty("prepStmtCacheSize", "250");
-        config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
-
-        connectionPool = new HikariDataSource(config); // setup the connection pool
-
-        Logger.info("local database connection configured");
-    }
-
     public void invalidateCacheList() {
 
         int objectUUID;
         String objectType;
 
-        try (Connection connection = connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = connection.prepareStatement("SELECT * FROM `login_cachelist`");
              ResultSet rs = statement.executeQuery()) {
 
@@ -424,7 +397,7 @@ public class LoginServer {
 
         // clear the db table
 
-        try (Connection connection = connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = connection.prepareStatement("DELETE FROM `login_cachelist`")) {
 
             statement.execute();
@@ -447,7 +420,7 @@ public class LoginServer {
 
         // query data warehouse for unresolved bane with this character
 
-        try (Connection connection = connectionPool.getConnection();
+        try (Connection connection = DbManager.getConnection();
              PreparedStatement statement = buildQueryActiveBaneStatement(connection, playerCharacter);
              ResultSet rs = statement.executeQuery()) {
 

src/engine/server/world/WorldServer.java

@@ -471,7 +471,7 @@ public class WorldServer {
 					+  ConfigManager.MB_DATABASE_ADDRESS.getValue() + ':'
 					+  ConfigManager.MB_DATABASE_PORT.getValue());
 
-			DbManager.configureDatabaseLayer();
+			DbManager.configureConnectionPool();
 
 		} catch (Exception e) {
 			Logger.error(e.getMessage());

src/engine/workthreads/HourlyJobThread.java

@@ -284,7 +284,6 @@ public class HourlyJobThread implements Runnable {
         Logger.info(WorldServer.getUptimeString());
         Logger.info(SimulationManager.getPopulationString());
         Logger.info(MessageDispatcher.getNetstatString());
-        Logger.info("Connection Pool Size: " + DbManager.getPoolSize());
         Logger.info(PurgeOprhans.recordsDeleted.toString() + "orphaned items deleted");
     }
 }

src/engine/workthreads/PurgeOprhans.java

@@ -8,7 +8,7 @@
 
 package engine.workthreads;
 
-import engine.db.archive.DataWarehouse;
+import engine.gameManager.DbManager;
 import org.pmw.tinylog.Logger;
 
 import java.sql.Connection;
@@ -46,7 +46,7 @@ public class PurgeOprhans implements Runnable {
         // Member variable declaration
 
         try (
-                Connection connection = DataWarehouse.connectionPool.getConnection();
+                Connection connection = DbManager.getConnection();
                 PreparedStatement statement = connection.prepareStatement("SELECT * from `object` where `type` = 'item' AND `parent` IS NULL", ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
                 ResultSet rs = statement.executeQuery()) {
 

src/engine/workthreads/WarehousePushThread.java

@@ -18,6 +18,7 @@ package engine.workthreads;
 import engine.Enum;
 import engine.db.archive.*;
 import engine.gameManager.ConfigManager;
+import engine.gameManager.DbManager;
 import org.pmw.tinylog.Logger;
 
 import java.sql.*;
@@ -153,7 +154,7 @@ public class WarehousePushThread implements Runnable {
 
 	public static boolean pushMineRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = MineRecord.buildMineQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -164,7 +165,7 @@ public class WarehousePushThread implements Runnable {
 
 			return true;
 		} catch (SQLException e) {
-			Logger.error( "Error with local DB connection: " + e.toString());
+			Logger.error("Error with local DB connection: " + e.toString());
 			e.printStackTrace();
 			return false;
 		}
@@ -172,7 +173,7 @@ public class WarehousePushThread implements Runnable {
 
 	public static boolean pushCharacterRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = CharacterRecord.buildCharacterQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -183,7 +184,7 @@ public class WarehousePushThread implements Runnable {
 
 			return true;
 		} catch (SQLException e) {
-			Logger.error( "Error with local DB connection: " + e.toString());
+			Logger.error("Error with local DB connection: " + e.toString());
 			e.printStackTrace();
 			return false;
 		}
@@ -191,7 +192,7 @@ public class WarehousePushThread implements Runnable {
 
 	private static boolean pushGuildRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = GuildRecord.buildGuildQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -238,7 +239,7 @@ public class WarehousePushThread implements Runnable {
 
 	private static boolean pushBaneRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = BaneRecord.buildBaneQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -271,7 +272,7 @@ public class WarehousePushThread implements Runnable {
 
 	private static boolean pushCityRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = CityRecord.buildCityQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -282,7 +283,7 @@ public class WarehousePushThread implements Runnable {
 
 			return true;
 		} catch (SQLException e) {
-			Logger.error( "Error with local DB connection: " + e.toString());
+			Logger.error("Error with local DB connection: " + e.toString());
 			e.printStackTrace();
 			return false;
 		}
@@ -290,7 +291,7 @@ public class WarehousePushThread implements Runnable {
 
 	private static boolean pushPvpRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = PvpRecord.buildPvpQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -323,7 +324,7 @@ public class WarehousePushThread implements Runnable {
 
 	private static boolean pushRealmRecords() {
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 PreparedStatement statement = RealmRecord.buildRealmQueryStatement(localConnection);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -335,7 +336,7 @@ public class WarehousePushThread implements Runnable {
 
 			return true;
 		} catch (SQLException e) {
-			Logger.error( "Error with local DB connection: " + e.toString());
+			Logger.error("Error with local DB connection: " + e.toString());
 			e.printStackTrace();
 			return false;
 		}
@@ -392,7 +393,7 @@ public class WarehousePushThread implements Runnable {
 
 		queryString = "SELECT * FROM `warehouse_index`";
 
-		try (Connection localConnection = DataWarehouse.connectionPool.getConnection();
+		try (Connection localConnection = DbManager.getConnection();
 			 CallableStatement statement = localConnection.prepareCall(queryString);
 			 ResultSet rs = statement.executeQuery()) {
 
@@ -417,14 +418,14 @@ public class WarehousePushThread implements Runnable {
 
 	private static boolean updateWarehouseIndex() {
 
-		try (Connection connection = DataWarehouse.connectionPool.getConnection();
+		try (Connection connection = DbManager.getConnection();
 			 PreparedStatement statement = WarehousePushThread.buildIndexUpdateStatement(connection)) {
 
 			statement.execute();
 			return true;
 
 		} catch (SQLException e) {
-			Logger.error( e.toString());
+			Logger.error(e.toString());
 			return false;
 		}
 	}