change

src/connector/jdbc/pom.xml

@@ -126,7 +126,7 @@
                         <include>**/*Test.java</include>
                     </includes>
                     <excludes>
-                        <exclude>**/BatchInsertTest.java</exclude>
+                        <exclude>**/AppMemoryLeakTest.java</exclude>
                         <exclude>**/FailOverTest.java</exclude>
                     </excludes>
                     <testFailureIgnore>true</testFailureIgnore>

src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java

-package com.taosdata.jdbc;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-
-import java.sql.*;
-import java.util.Properties;
-import java.util.Random;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.TimeUnit;
-
-import static org.junit.Assert.assertEquals;
-
-public class BatchInsertTest {
-
-    private Connection connection;
-
-    private static String dbName = "test";
-    private static String stbName = "meters";
-    private static String host = "127.0.0.1";
-    private static int numOfTables = 30;
-    private static int numOfRecordsPerTable = 1000;
-    private static long ts = 1496732686000l;
-    private static String tablePrefix = "t";
-
-    @Before
-    public void createDatabase() throws SQLException {
-        try {
-            Class.forName("com.taosdata.jdbc.TSDBDriver");
-        } catch (ClassNotFoundException e) {
-            return;
-        }
-
-        Properties properties = new Properties();
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
-
-        Statement stmt = connection.createStatement();
-        stmt.execute("drop database if exists " + dbName);
-        stmt.execute("create database if not exists " + dbName);
-        stmt.execute("use " + dbName);
-
-        String createTableSql = "create table " + stbName + "(ts timestamp, f1 int, f2 int, f3 int) tags(areaid int, loc binary(20))";
-        stmt.execute(createTableSql);
-
-        for (int i = 0; i < numOfTables; i++) {
-            String loc = i % 2 == 0 ? "beijing" : "shanghai";
-            String createSubTalbesSql = "create table " + tablePrefix + i + " using " + stbName + " tags(" + i + ", '" + loc + "')";
-            stmt.execute(createSubTalbesSql);
-        }
-        stmt.close();
-    }
-
-    @Test
-    public void testBatchInsert() throws SQLException {
-        ExecutorService executorService = Executors.newFixedThreadPool(numOfTables);
-        for (int i = 0; i < numOfTables; i++) {
-            final int index = i;
-            executorService.execute(() -> {
-                try {
-                    long startTime = System.currentTimeMillis();
-                    Statement statement = connection.createStatement(); // get statement
-                    StringBuilder sb = new StringBuilder();
-                    sb.append("INSERT INTO " + tablePrefix + index + " VALUES");
-                    Random rand = new Random();
-                    for (int j = 1; j <= numOfRecordsPerTable; j++) {
-                        sb.append("(" + (ts + j) + ", ");
-                        sb.append(rand.nextInt(100) + ", ");
-                        sb.append(rand.nextInt(100) + ", ");
-                        sb.append(rand.nextInt(100) + ")");
-                    }
-                    statement.addBatch(sb.toString());
-                    statement.executeBatch();
-                    long endTime = System.currentTimeMillis();
-                    System.out.println("Thread " + index + " takes " + (endTime - startTime) + " microseconds");
-                    connection.commit();
-                    statement.close();
-                } catch (Exception e) {
-                    e.printStackTrace();
-                }
-            });
-        }
-        executorService.shutdown();
-
-        try {
-            executorService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-
-        Statement statement = connection.createStatement();
-        ResultSet rs = statement.executeQuery("select * from meters");
-        int num = 0;
-        while (rs.next()) {
-            num++;
-        }
-        assertEquals(num, numOfTables * numOfRecordsPerTable);
-        rs.close();
-    }
-
-    @After
-    public void close() {
-        try {
-            if (connection != null)
-                connection.close();
-        } catch (SQLException e) {
-            e.printStackTrace();
-        }
-    }
-
-}
\ No newline at end of file

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBDatabaseMetaDataTest.java

@@ -949,11 +949,10 @@ public class TSDBDatabaseMetaDataTest {
     }
 
     @BeforeClass
-    public static void before() {
+    public static void beforeClass() {
         try {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, host);
             properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
             properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
             properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
@@ -967,7 +966,7 @@ public class TSDBDatabaseMetaDataTest {
     }
 
     @AfterClass
-    public static void after() {
+    public static void afterClass() {
         try {
             if (connection != null)
                 connection.close();

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/BatchInsertTest.java

@@ -60,9 +60,7 @@ public class BatchInsertTest {
         ExecutorService executorService = Executors.newFixedThreadPool(numOfTables);
         for (int i = 0; i < numOfTables; i++) {
             final int index = i;
-            executorService.execute(new Runnable() {
-                @Override
-                public void run() {
+            executorService.execute(() -> {
                 try {
                     long startTime = System.currentTimeMillis();
                     Statement statement = connection.createStatement(); // get statement
@@ -84,7 +82,6 @@ public class BatchInsertTest {
                 } catch (Exception e) {
                     e.printStackTrace();
                 }
-                }
             });
         }