Remove password history feature in iotdb.

integration-test/src/test/java/org/apache/iotdb/confignode/it/partition/IoTDBAutoRegionGroupExtensionIT.java

@@ -189,8 +189,7 @@ private void checkRegionDistribution(
                   .merge(regionInfo.getDataNodeId(), 1, Integer::sum);
             });
     // The number of RegionGroups should not less than the testMinRegionGroupNum for each database
-    // +1 for AUDIT database
-    Assert.assertEquals(TEST_DATABASE_NUM + 1, databaseRegionCounter.size());
+    Assert.assertEquals(TEST_DATABASE_NUM, databaseRegionCounter.size());
     databaseRegionCounter.forEach(
         (database, regionCount) ->
             Assert.assertTrue(
@@ -209,8 +208,7 @@ private void checkRegionDistribution(
             <= 1);
     // The maximal Region count - minimal Region count should be less than or equal to 1 for each
     // Database
-    // +1 for system database
-    Assert.assertEquals(TEST_DATABASE_NUM + 1, databaseDataNodeRegionCounter.size());
+    Assert.assertEquals(TEST_DATABASE_NUM, databaseDataNodeRegionCounter.size());
     databaseDataNodeRegionCounter.forEach(
         (database, dataNodeRegionCount) ->
             Assert.assertTrue(

integration-test/src/test/java/org/apache/iotdb/confignode/it/partition/IoTDBPartitionGetterIT.java

@@ -534,8 +534,7 @@ public void testGetSchemaNodeManagementPartition() throws Exception {
       nodeManagementResp = client.getSchemaNodeManagementPartition(nodeManagementReq);
       Assert.assertEquals(
           TSStatusCode.SUCCESS_STATUS.getStatusCode(), nodeManagementResp.getStatus().getCode());
-      // +1 for AUDIT database
-      Assert.assertEquals(databaseNum + 1, nodeManagementResp.getMatchedNodeSize());
+      Assert.assertEquals(databaseNum, nodeManagementResp.getMatchedNodeSize());
       Assert.assertNotNull(nodeManagementResp.getSchemaRegionMap());
       Assert.assertEquals(0, nodeManagementResp.getSchemaRegionMapSize());
     }

integration-test/src/test/java/org/apache/iotdb/confignode/it/procedure/IoTDBProcedureIT.java

@@ -137,7 +137,8 @@ private void recoverTest(int configNodeNum, boolean needRestartLeader) throws Ex
     Callable<Boolean> finalCheck =
         () -> {
           TShowDatabaseResp resp1 = newLeaderClient.showDatabase(showAllDatabasesReq);
-          if (MAX_STATE != resp1.getDatabaseInfoMap().size() - 1) {
+          if (resp1.getDatabaseInfoMap() == null
+              || MAX_STATE != resp1.getDatabaseInfoMap().size()) {
             return false;
           }
           resp1

integration-test/src/test/java/org/apache/iotdb/confignode/it/regionmigration/pass/commit/IoTDBRegionGroupExpandAndShrinkForIoTV1IT.java

@@ -94,8 +94,7 @@ public void singleRegionTest() throws Exception {
       Set<Integer> allDataNodeId = getAllDataNodes(statement);
 
       // expect one data region, one schema region
-      // plus one AUDIT data region, one AUDIT schema region
-      Assert.assertEquals(4, regionMap.size());
+      Assert.assertEquals(2, regionMap.size());
 
       // expand
       for (int selectedRegion : regionMap.keySet()) {
@@ -217,8 +216,7 @@ public void multiRegionNormalTest() throws Exception {
       Set<Integer> allDataNodeId = getAllDataNodes(statement);
 
       // expect one data region, one schema region
-      // plus one AUDIT data region, one AUDIT schema region
-      Assert.assertEquals(4, regionMap.size());
+      Assert.assertEquals(2, regionMap.size());
 
       // select multiple regions for testing
       List<Integer> selectedRegions = new ArrayList<>(regionMap.keySet());

integration-test/src/test/java/org/apache/iotdb/confignode/it/regionmigration/pass/commit/IoTDBRegionReconstructForIoTV1IT.java

@@ -104,7 +104,7 @@ public void normal1C3DTest() throws Exception {
       Set<Integer> allDataNodeId = getAllDataNodes(statement);
 
       // select datanode
-      final int selectedRegion = 3;
+      final int selectedRegion = 1;
       Assert.assertTrue(dataRegionMap.containsKey(selectedRegion));
       Pair<Integer, Set<Integer>> leaderAndNodeIds = dataRegionMap.get(selectedRegion);
       Assert.assertEquals(2, leaderAndNodeIds.right.size());

integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBMiscIT.java

@@ -56,7 +56,7 @@ public void testCompressionRatioFile() throws SQLException {
       statement.execute("insert into root.comprssion_ratio_file.d1(timestamp,s1) values(1,1.0)");
       statement.execute("flush");
       // one global file and two data region file (including one AUDIT region)
-      assertEquals(3, collectCompressionRatioFiles(nodeWrapper).size());
+      assertEquals(2, collectCompressionRatioFiles(nodeWrapper).size());
 
       statement.execute("drop database root.comprssion_ratio_file");
       // one global file and system region file

integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java

@@ -20,9 +20,7 @@
 package org.apache.iotdb.db.it.auth;
 
 import org.apache.iotdb.commons.auth.entity.PrivilegeType;
-import org.apache.iotdb.commons.conf.CommonDescriptor;
 import org.apache.iotdb.commons.schema.column.ColumnHeaderConstant;
-import org.apache.iotdb.commons.utils.AuthUtils;
 import org.apache.iotdb.db.it.utils.TestUtils;
 import org.apache.iotdb.it.env.EnvFactory;
 import org.apache.iotdb.it.framework.IoTDBTestRunner;
@@ -51,8 +49,6 @@
 import java.util.Set;
 import java.util.concurrent.Callable;
 
-import static org.apache.iotdb.commons.auth.entity.User.INTERNAL_USER_END_ID;
-import static org.apache.iotdb.db.audit.DNAuditLogger.PREFIX_PASSWORD_HISTORY;
 import static org.apache.iotdb.db.it.utils.TestUtils.createUser;
 import static org.apache.iotdb.db.it.utils.TestUtils.executeNonQuery;
 import static org.apache.iotdb.db.it.utils.TestUtils.resultSetEqualTest;
@@ -1521,107 +1517,6 @@ public void testStrongPassword() throws SQLException {
     }
   }
 
-  @Test
-  public void testPasswordHistory() {
-    try (Connection connection = EnvFactory.getEnv().getConnection();
-        Statement statement = connection.createStatement()) {
-      testPasswordHistoryEncrypted(statement);
-      testPasswordHistoryCreateAndDrop(statement);
-      testPasswordHistoryAlter(statement);
-    } catch (SQLException e) {
-      e.printStackTrace();
-      fail(e.getMessage());
-    }
-  }
-
-  public void testPasswordHistoryEncrypted(Statement statement) throws SQLException {
-    ResultSet resultSet =
-        statement.executeQuery("SELECT password,oldPassword from root.__audit.password_history._0");
-    assertTrue(resultSet.next());
-    assertEquals(
-        AuthUtils.encryptPassword(CommonDescriptor.getInstance().getConfig().getAdminPassword()),
-        resultSet.getString("root.__audit.password_history._0.password"));
-    assertEquals(
-        AuthUtils.encryptPassword(CommonDescriptor.getInstance().getConfig().getAdminPassword()),
-        resultSet.getString("root.__audit.password_history._0.oldPassword"));
-  }
-
-  public void testPasswordHistoryCreateAndDrop(Statement statement) throws SQLException {
-    statement.execute("create user userA 'abcdef123456'");
-
-    long expectedUserAId = INTERNAL_USER_END_ID + 1;
-    try (ResultSet resultSet =
-        statement.executeQuery(
-            String.format(
-                "select last password from %s.`_" + expectedUserAId + "`",
-                PREFIX_PASSWORD_HISTORY))) {
-      if (!resultSet.next()) {
-        fail("Password history not found");
-      }
-      assertEquals(AuthUtils.encryptPassword("abcdef123456"), resultSet.getString("Value"));
-    }
-
-    try (ResultSet resultSet =
-        statement.executeQuery(
-            String.format(
-                "select last oldPassword from %s.`_" + expectedUserAId + "`",
-                PREFIX_PASSWORD_HISTORY))) {
-      if (!resultSet.next()) {
-        fail("Password history not found");
-      }
-      assertEquals(AuthUtils.encryptPassword("abcdef123456"), resultSet.getString("Value"));
-    }
-
-    statement.execute("drop user userA");
-
-    try (ResultSet resultSet =
-        statement.executeQuery(
-            String.format(
-                "select last password from %s.`_" + expectedUserAId + "`",
-                PREFIX_PASSWORD_HISTORY))) {
-      assertFalse(resultSet.next());
-    }
-
-    try (ResultSet resultSet =
-        statement.executeQuery(
-            String.format(
-                "select last oldPassword from %s.`_" + expectedUserAId + "`",
-                PREFIX_PASSWORD_HISTORY))) {
-      assertFalse(resultSet.next());
-    }
-  }
-
-  public void testPasswordHistoryAlter(Statement statement) throws SQLException {
-    statement.execute("create user userA 'abcdef123456'");
-    statement.execute("alter user userA set password 'abcdef654321'");
-
-    long expectedUserAId = INTERNAL_USER_END_ID + 2;
-    try (ResultSet resultSet =
-        statement.executeQuery(
-            String.format(
-                "select last password from %s.`_" + expectedUserAId + "`",
-                PREFIX_PASSWORD_HISTORY))) {
-      if (!resultSet.next()) {
-        fail("Password history not found");
-      }
-      assertEquals(AuthUtils.encryptPassword("abcdef654321"), resultSet.getString("Value"));
-    }
-
-    try (ResultSet resultSet =
-        statement.executeQuery(
-            String.format(
-                "select oldPassword from %s.`_" + expectedUserAId + "` order by time desc limit 1",
-                PREFIX_PASSWORD_HISTORY))) {
-      if (!resultSet.next()) {
-        fail("Password history not found");
-      }
-      assertEquals(
-          AuthUtils.encryptPassword("abcdef123456"),
-          resultSet.getString(
-              String.format("%s._" + expectedUserAId + ".oldPassword", PREFIX_PASSWORD_HISTORY)));
-    }
-  }
-
   @Test
   public void testChangeBackPassword() {
     try (Connection connection = EnvFactory.getEnv().getConnection();

integration-test/src/test/java/org/apache/iotdb/db/it/mqtt/IoTDBMQTTServiceJsonIT.java

@@ -77,7 +77,7 @@ public void setUp() throws Exception {
     mqtt.setUserName(USER);
     mqtt.setPassword(PASSWORD);
     mqtt.setConnectAttemptsMax(3);
-    mqtt.setReconnectDelay(10);
+    mqtt.setReconnectDelay(1000);
     mqtt.setClientId("jsonClientId1");
 
     connection = mqtt.blockingConnection();

integration-test/src/test/java/org/apache/iotdb/db/it/schema/IoTDBDeleteDatabaseIT.java

@@ -159,8 +159,7 @@ public void testDeleteAllDatabases() throws Exception {
           result.add(resultSet.getString(1));
         }
       }
-      // One for un-deletable AUDIT database
-      assertEquals(1, result.size());
+      assertEquals(0, result.size());
     }
   }
 

integration-test/src/test/java/org/apache/iotdb/pipe/it/dual/treemodel/auto/basic/IoTDBPipeLifeCycleIT.java

@@ -258,7 +258,7 @@ public void testLifeCycleWithHistoryDisabled() throws Exception {
           "count(timeseries),",
           Collections.singleton("0,"));
       TestUtils.assertDataEventuallyOnEnv(
-          receiverEnv, "count databases", "count,", Collections.singleton("4,"));
+          receiverEnv, "count databases", "count,", Collections.singleton("3,"));
     }
   }
 

integration-test/src/test/java/org/apache/iotdb/pipe/it/dual/treemodel/auto/basic/IoTDBPipeProtocolIT.java

@@ -460,10 +460,10 @@ private void doTestUseNodeUrls(String sinkName) throws Exception {
           null);
 
       TestUtils.assertDataEventuallyOnEnv(
-          receiverEnv, "count timeseries", "count(timeseries),", Collections.singleton("4,"));
+          receiverEnv, "count timeseries", "count(timeseries),", Collections.singleton("2,"));
 
       TestUtils.assertDataEventuallyOnEnv(
-          receiverEnv, "count databases", "count,", Collections.singleton("3,"));
+          receiverEnv, "count databases", "count,", Collections.singleton("2,"));
 
       // Test file mode
       sourceAttributes.put("source.inclusion", "data");

integration-test/src/test/java/org/apache/iotdb/pipe/it/dual/treemodel/auto/basic/IoTDBPipeSourceIT.java

@@ -1040,8 +1040,6 @@ public void testRealtimeLooseRange() throws Exception {
   }
 
   private void assertTimeseriesCountOnReceiver(BaseEnv receiverEnv, int count) {
-    // for system password history
-    count += 2;
     TestUtils.assertDataEventuallyOnEnv(
         receiverEnv,
         "count timeseries root.**",