diff --git a/src/main/java/io/mycat/MycatServer.java b/src/main/java/io/mycat/MycatServer.java
index bbbe1800c..52e95c3a2 100644
--- a/src/main/java/io/mycat/MycatServer.java
+++ b/src/main/java/io/mycat/MycatServer.java
@@ -150,7 +150,6 @@ public class MycatServer {
 
 	private final MycatConfig config;
 	private final ScheduledExecutorService scheduler;
-	private final SQLRecorder sqlRecorder;
 	private final AtomicBoolean isOnline;
 	private final long startupTime;
 	private NIOProcessor[] processors;
@@ -170,9 +169,6 @@ public class MycatServer {
 		//定时线程池，单线程线程池
 		scheduler = Executors.newSingleThreadScheduledExecutor();
 		
-		//SQL记录器
-		this.sqlRecorder = new SQLRecorder(config.getSystem().getSqlRecordCount());
-
 		/**
 		 * 是否在线，MyCat manager中有命令控制
 		 * | offline | Change MyCat status to OFF |
@@ -743,9 +739,6 @@ public class MycatServer {
 		return connector;
 	}
 
-	public SQLRecorder getSqlRecorder() {
-		return sqlRecorder;
-	}
 
 	public long getStartupTime() {
 		return startupTime;
diff --git a/src/main/java/io/mycat/config/MycatPrivileges.java b/src/main/java/io/mycat/config/MycatPrivileges.java
index 61f94d7ba..e9510bfc3 100644
--- a/src/main/java/io/mycat/config/MycatPrivileges.java
+++ b/src/main/java/io/mycat/config/MycatPrivileges.java
@@ -80,16 +80,12 @@ public class MycatPrivileges implements FrontendPrivileges {
     @Override
     public String getPassword(String user) {
         MycatConfig conf = MycatServer.getInstance().getConfig();
-        if (user != null && user.equals(conf.getSystem().getClusterHeartbeatUser())) {
-            return conf.getSystem().getClusterHeartbeatPass();
-        } else {
             UserConfig uc = conf.getUsers().get(user);
             if (uc != null) {
                 return uc.getPassword();
             } else {
                 return null;
             }
-        }
     }
 
     @Override
diff --git a/src/main/java/io/mycat/config/model/SystemConfig.java b/src/main/java/io/mycat/config/model/SystemConfig.java
index 8d1b3b8c8..f761b6a54 100644
--- a/src/main/java/io/mycat/config/model/SystemConfig.java
+++ b/src/main/java/io/mycat/config/model/SystemConfig.java
@@ -64,8 +64,6 @@ public final class SystemConfig {
 	private static final long DEFAULT_XA_LOG_CLEAN_PERIOD = 1 * 1000L;
 	private static final long DEFAULT_DATANODE_IDLE_CHECK_PERIOD = 5 * 60 * 1000L;
 	private static final long DEFAULT_DATANODE_HEARTBEAT_PERIOD = 10 * 1000L;
-	private static final String DEFAULT_CLUSTER_HEARTBEAT_USER = "_HEARTBEAT_USER_";
-	private static final String DEFAULT_CLUSTER_HEARTBEAT_PASS = "_HEARTBEAT_PASS_";
 	private static final int DEFAULT_SQL_RECORD_COUNT = 10;
 	private static final boolean DEFAULT_USE_ZK_SWITCH = true;
 	private static final boolean DEFAULT_LOWER_CASE = true;
@@ -108,8 +106,6 @@ public final class SystemConfig {
 	private long xaLogCleanPeriod;
 	private long dataNodeIdleCheckPeriod;
 	private long dataNodeHeartbeatPeriod;
-	private String clusterHeartbeatUser;
-	private String clusterHeartbeatPass;
 	private int txIsolation;
 	private int sqlRecordCount;
 	private int recordTxn = 0;
@@ -216,8 +212,6 @@ public final class SystemConfig {
 		this.xaLogCleanPeriod  = DEFAULT_XA_LOG_CLEAN_PERIOD;
 		this.dataNodeIdleCheckPeriod = DEFAULT_DATANODE_IDLE_CHECK_PERIOD;
 		this.dataNodeHeartbeatPeriod = DEFAULT_DATANODE_HEARTBEAT_PERIOD;
-		this.clusterHeartbeatUser = DEFAULT_CLUSTER_HEARTBEAT_USER;
-		this.clusterHeartbeatPass = DEFAULT_CLUSTER_HEARTBEAT_PASS;
 		this.txIsolation = Isolations.REPEATED_READ;
 		this.sqlRecordCount = DEFAULT_SQL_RECORD_COUNT;
 		this.glableTableCheckPeriod = DEFAULT_GLOBAL_TABLE_CHECK_PERIOD;
@@ -583,14 +577,6 @@ public final class SystemConfig {
 		this.dataNodeHeartbeatPeriod = dataNodeHeartbeatPeriod;
 	}
 
-	public String getClusterHeartbeatUser() {
-		return clusterHeartbeatUser;
-	}
-
-	public void setClusterHeartbeatUser(String clusterHeartbeatUser) {
-		this.clusterHeartbeatUser = clusterHeartbeatUser;
-	}
-
 	public long getSqlExecuteTimeout() {
 		return sqlExecuteTimeout;
 	}
@@ -599,13 +585,6 @@ public final class SystemConfig {
 		this.sqlExecuteTimeout = sqlExecuteTimeout;
 	}
 
-	public String getClusterHeartbeatPass() {
-		return clusterHeartbeatPass;
-	}
-
-	public void setClusterHeartbeatPass(String clusterHeartbeatPass) {
-		this.clusterHeartbeatPass = clusterHeartbeatPass;
-	}
 
 	public int getFrontsocketsorcvbuf() {
 		return frontSocketSoRcvbuf;
@@ -803,8 +782,6 @@ public final class SystemConfig {
 				+ ", xaLogCleanPeriod=" + xaLogCleanPeriod
 				+ ", transactionLogBaseDir=" + transactionLogBaseDir 
 				+ ", transactionLogBaseName=" + transactionLogBaseName
-				+ ", clusterHeartbeatUser=" + clusterHeartbeatUser
-				+ ", clusterHeartbeatPass=" + clusterHeartbeatPass
 				+ ", txIsolation=" + txIsolation
 				+ ", sqlRecordCount=" + sqlRecordCount
 				+ ", bufferPoolPageSize=" + bufferPoolPageSize
diff --git a/src/main/java/io/mycat/memory/MyCatMemory.java b/src/main/java/io/mycat/memory/MyCatMemory.java
index 508e0b5f0..d24f655e5 100644
--- a/src/main/java/io/mycat/memory/MyCatMemory.java
+++ b/src/main/java/io/mycat/memory/MyCatMemory.java
@@ -56,7 +56,6 @@ public class MyCatMemory {
 		LOGGER.info("useStreamOutput = " + system.getUseStreamOutput());
 		LOGGER.info("systemReserveMemorySize = " + system.getSystemReserveMemorySize());
 		LOGGER.info("totalNetWorkBufferSize = " + JavaUtils.bytesToString2(totalNetWorkBufferSize));
-		LOGGER.info("dataNodeSortedTempDir = " + system.getDataNodeSortedTempDir());
 
 		this.conf = new MycatPropertyConf();
 		numCores = Runtime.getRuntime().availableProcessors();