feat: migrate mongo's data to tdengine without tbname specified #TS-1538 #TS-1539

tdenginereader/pom.xml

@@ -29,12 +29,6 @@
             </exclusions>
         </dependency>
 
-        <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>fastjson</artifactId>
-            <version>1.2.78</version>
-        </dependency>
-
         <dependency>
             <groupId>com.alibaba.datax.tdenginewriter</groupId>
             <artifactId>tdenginewriter</artifactId>
@@ -45,13 +39,7 @@
         <dependency>
             <groupId>com.taosdata.jdbc</groupId>
             <artifactId>taos-jdbcdriver</artifactId>
-            <version>2.0.37</version>
+            <version>2.0.39</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>com.alibaba</groupId>
-                    <artifactId>fastjson</artifactId>
-                </exclusion>
-            </exclusions>
         </dependency>
 
         <dependency>

tdenginewriter/pom.xml

@@ -20,22 +20,10 @@
 
     <dependencies>
 
-        <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>fastjson</artifactId>
-            <version>1.2.78</version>
-        </dependency>
-
         <dependency>
             <groupId>com.taosdata.jdbc</groupId>
             <artifactId>taos-jdbcdriver</artifactId>
-            <version>2.0.37</version>
+            <version>2.0.39</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>com.alibaba</groupId>
-                    <artifactId>fastjson</artifactId>
-                </exclusion>
-            </exclusions>
         </dependency>
 
         <dependency>
@@ -74,6 +62,7 @@
             <version>5.1.49</version>
             <scope>test</scope>
         </dependency>
+
         <!-- 添加 dm8 jdbc jar 包依赖-->
         <!--        <dependency>-->
         <!--            <groupId>com.dameng</groupId>-->

tdenginewriter/src/main/java/com/alibaba/datax/plugin/writer/tdenginewriter/DefaultDataHandler.java

@@ -17,19 +17,20 @@ import java.sql.*;
 import java.util.*;
 import java.util.Date;
 import java.util.stream.Collectors;
+import java.util.stream.IntStream;
 
 public class DefaultDataHandler implements DataHandler {
+    private static final Logger LOG = LoggerFactory.getLogger(DefaultDataHandler.class);
+
     static {
         try {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Class.forName("com.taosdata.jdbc.rs.RestfulDriver");
         } catch (ClassNotFoundException e) {
-            e.printStackTrace();
+            LOG.error(e.getMessage(), e);
         }
     }
 
-    private static final Logger LOG = LoggerFactory.getLogger(DefaultDataHandler.class);
-
     private final TaskPluginCollector taskPluginCollector;
     private String username;
     private String password;
@@ -47,15 +48,15 @@ public class DefaultDataHandler implements DataHandler {
         this.tableMetas = tableMetas;
     }
 
-    public void setColumnMetas(Map<String, List<ColumnMeta>> columnMetas) {
+    public void setTbnameColumnMetasMap(Map<String, List<ColumnMeta>> tbnameColumnMetasMap) {
-        this.columnMetas = columnMetas;
+        this.tbnameColumnMetasMap = tbnameColumnMetasMap;
     }
 
     public void setSchemaManager(SchemaManager schemaManager) {
         this.schemaManager = schemaManager;
     }
 
-    private Map<String, List<ColumnMeta>> columnMetas;
+    private Map<String, List<ColumnMeta>> tbnameColumnMetasMap;
 
     public DefaultDataHandler(Configuration configuration, TaskPluginCollector taskPluginCollector) {
         this.username = configuration.getString(Key.USERNAME, Constants.DEFAULT_USERNAME);
@@ -73,14 +74,13 @@ public class DefaultDataHandler implements DataHandler {
         int count = 0;
         int affectedRows = 0;
 
-
         try (Connection conn = DriverManager.getConnection(jdbcUrl, username, password)) {
             LOG.info("connection[ jdbcUrl: " + jdbcUrl + ", username: " + username + "] established.");
             // prepare table_name -> table_meta
             this.schemaManager = new SchemaManager(conn);
             this.tableMetas = schemaManager.loadTableMeta(tables);
             // prepare table_name -> column_meta
-            this.columnMetas = schemaManager.loadColumnMetas(tables);
+            this.tbnameColumnMetasMap = schemaManager.loadColumnMetas(tables);
 
             List<Record> recordBatch = new ArrayList<>();
             Record record;
@@ -152,10 +152,12 @@ public class DefaultDataHandler implements DataHandler {
             TableMeta tableMeta = tableMetas.get(table);
             switch (tableMeta.tableType) {
                 case SUP_TABLE: {
-                    if (columns.contains("tbname"))
+                    if (columns.contains("tbname")) {
                         affectedRows += writeBatchToSupTableBySQL(conn, table, recordBatch);
-                    else
+                    } else {
-                        affectedRows += writeBatchToSupTableBySchemaless(conn, table, recordBatch);
+                        Map<String, String> tag2Tbname = schemaManager.loadTagTableNameMap(table);
+                        affectedRows += writeBatchToSupTableWithoutTbname(conn, table, recordBatch, tag2Tbname);
+                    }
                 }
                 break;
                 case SUB_TABLE:
@@ -169,13 +171,82 @@ public class DefaultDataHandler implements DataHandler {
         return affectedRows;
     }
 
+    private int writeBatchToSupTableWithoutTbname(Connection conn, String table, List<Record> recordBatch, Map<String, String> tag2Tbname) throws SQLException {
+        List<ColumnMeta> columnMetas = tbnameColumnMetasMap.get(table);
+        List<Record> subTableExist = filterSubTableExistRecords(recordBatch, columnMetas, tag2Tbname);
+        List<Record> subTableNotExist = filterSubTableNotExistRecords(recordBatch, columnMetas, tag2Tbname);
+
+        int affectedRows = 0;
+        Map<String, List<Record>> subTableRecordsMap = splitRecords(subTableExist, columnMetas, tag2Tbname);
+
+        List<String> subTables = new ArrayList<>(subTableRecordsMap.keySet());
+        this.tbnameColumnMetasMap.putAll(schemaManager.loadColumnMetas(subTables));
+
+        for (String subTable : subTableRecordsMap.keySet()) {
+            List<Record> subTableRecords = subTableRecordsMap.get(subTable);
+            affectedRows += writeBatchToNormalTable(conn, subTable, subTableRecords);
+        }
+        if (!subTableNotExist.isEmpty())
+            affectedRows += writeBatchToSupTableBySchemaless(conn, table, subTableNotExist);
+        return affectedRows;
+    }
+
+    private List<Record> filterSubTableExistRecords(List<Record> recordBatch, List<ColumnMeta> columnMetas, Map<String, String> tag2Tbname) {
+        return recordBatch.stream().filter(record -> {
+            String tagStr = getTagString(columnMetas, record);
+            return tag2Tbname.containsKey(tagStr);
+        }).collect(Collectors.toList());
+    }
+
+    private List<Record> filterSubTableNotExistRecords(List<Record> recordBatch, List<ColumnMeta> columnMetas, Map<String, String> tag2Tbname) {
+        return recordBatch.stream().filter(record -> {
+            String tagStr = getTagString(columnMetas, record);
+            return !tag2Tbname.containsKey(tagStr);
+        }).collect(Collectors.toList());
+    }
+
+    private Map<String, List<Record>> splitRecords(List<Record> subTableExist, List<ColumnMeta> columnMetas, Map<String, String> tag2Tbname) {
+        Map<String, List<Record>> ret = new HashMap<>();
+        for (Record record : subTableExist) {
+            String tagstr = getTagString(columnMetas, record);
+            String tbname = tag2Tbname.get(tagstr);
+            if (ret.containsKey(tbname)) {
+                ret.get(tbname).add(record);
+            } else {
+                List<Record> list = new ArrayList<>();
+                list.add(record);
+                ret.put(tbname, list);
+            }
+        }
+        return ret;
+    }
+
+    private String getTagString(List<ColumnMeta> columnMetas, Record record) {
+        return IntStream.range(0, columnMetas.size()).mapToObj(colIndex -> {
+            ColumnMeta columnMeta = columnMetas.get(colIndex);
+            if (columnMeta.isTag) {
+                Column column = record.getColumn(colIndex);
+                switch (columnMeta.type) {
+                    case "TINYINT":
+                    case "SMALLINT":
+                    case "INT":
+                    case "BIGINT":
+                        return column.asLong().toString();
+                    default:
+                        return column.asString();
+                }
+            }
+            return "";
+        }).collect(Collectors.joining());
+    }
+
     /**
      * insert into record[idx(tbname)] using table tags(record[idx(t1)]) (ts, f1, f2, f3) values(record[idx(ts)], record[idx(f1)], )
      * record[idx(tbname)] using table tags(record[idx(t1)]) (ts, f1, f2, f3) values(record[idx(ts)], record[idx(f1)], )
      * record[idx(tbname)] using table tags(record[idx(t1)]) (ts, f1, f2, f3) values(record[idx(ts)], record[idx(f1)], )
      */
     private int writeBatchToSupTableBySQL(Connection conn, String table, List<Record> recordBatch) throws SQLException {
-        List<ColumnMeta> columnMetas = this.columnMetas.get(table);
+        List<ColumnMeta> columnMetas = this.tbnameColumnMetasMap.get(table);
 
         StringBuilder sb = new StringBuilder("insert into");
         for (Record record : recordBatch) {
@@ -257,7 +328,7 @@ public class DefaultDataHandler implements DataHandler {
         int count = 0;
         TimestampPrecision timestampPrecision = schemaManager.loadDatabasePrecision();
 
-        List<ColumnMeta> columnMetaList = this.columnMetas.get(table);
+        List<ColumnMeta> columnMetaList = this.tbnameColumnMetasMap.get(table);
         ColumnMeta ts = columnMetaList.stream().filter(colMeta -> colMeta.isPrimaryKey).findFirst().get();
 
         List<String> lines = new ArrayList<>();
@@ -394,7 +465,7 @@ public class DefaultDataHandler implements DataHandler {
      * insert into tb1 (ts, f1, f2) values( record[idx(ts)], record[idx(f1)], record[idx(f2)])
      */
     private int writeBatchToSubTable(Connection conn, String table, List<Record> recordBatch) throws SQLException {
-        List<ColumnMeta> columnMetas = this.columnMetas.get(table);
+        List<ColumnMeta> columnMetas = this.tbnameColumnMetasMap.get(table);
 
         StringBuilder sb = new StringBuilder();
         sb.append("insert into ").append(table).append(" ")
@@ -464,18 +535,18 @@ public class DefaultDataHandler implements DataHandler {
      * sql: insert into weather (ts, f1, f2, f3, t1, t2) values( record[idx(ts), record[idx(f1)], ...)
      */
     private int writeBatchToNormalTable(Connection conn, String table, List<Record> recordBatch) throws SQLException {
-        List<ColumnMeta> columnMetas = this.columnMetas.get(table);
+        List<ColumnMeta> columnMetas = this.tbnameColumnMetasMap.get(table);
 
         StringBuilder sb = new StringBuilder();
         sb.append("insert into ").append(table)
                 .append(" ")
-                .append(columnMetas.stream().filter(colMeta -> columns.contains(colMeta.field)).map(colMeta -> {
+                .append(columnMetas.stream().filter(colMeta -> !colMeta.isTag).filter(colMeta -> columns.contains(colMeta.field)).map(colMeta -> {
                     return colMeta.field;
                 }).collect(Collectors.joining(",", "(", ")")))
                 .append(" values ");
 
         for (Record record : recordBatch) {
-            sb.append(columnMetas.stream().filter(colMeta -> columns.contains(colMeta.field)).map(colMeta -> {
+            sb.append(columnMetas.stream().filter(colMeta -> !colMeta.isTag).filter(colMeta -> columns.contains(colMeta.field)).map(colMeta -> {
                 return buildColumnValue(colMeta, record);
             }).collect(Collectors.joining(",", "(", ")")));
         }

tdenginewriter/src/main/java/com/alibaba/datax/plugin/writer/tdenginewriter/SchemaManager.java

@@ -5,17 +5,18 @@ import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.sql.Connection;
+import java.sql.*;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.Statement;
 import java.util.*;
+import java.util.stream.Collectors;
 
 public class SchemaManager {
     private static final Logger LOG = LoggerFactory.getLogger(SchemaManager.class);
+//    private static final String TAG_TABLE_NAME_MAP_KEY_SPLITTER = "_";
+    private static final String TAG_TABLE_NAME_MAP_KEY_SPLITTER = "";
 
     private final Connection conn;
     private TimestampPrecision precision;
+    private Map<String, Map<String, String>> tags2tbnameMaps = new HashMap<>();
 
     public SchemaManager(Connection conn) {
         this.conn = conn;
@@ -169,4 +170,37 @@ public class SchemaManager {
         return columnMeta;
     }
 
+    public Map<String, String> loadTagTableNameMap(String table) throws SQLException {
+        if (tags2tbnameMaps.containsKey(table))
+            return tags2tbnameMaps.get(table);
+        Map<String, String> tags2tbname = new HashMap<>();
+        try (Statement stmt = conn.createStatement()) {
+            // describe table
+            List<String> tags = new ArrayList<>();
+            ResultSet rs = stmt.executeQuery("describe " + table);
+            while (rs.next()) {
+                String note = rs.getString("Note");
+                if ("TAG".equals(note)) {
+                    tags.add(rs.getString("Field"));
+                }
+            }
+            // select distinct tbname, t1, t2 from stb
+            rs = stmt.executeQuery("select distinct " + String.join(",", tags) + ",tbname from " + table);
+            while (rs.next()) {
+                ResultSet finalRs = rs;
+                String tagStr = tags.stream().map(t -> {
+                    try {
+                        return finalRs.getString(t);
+                    } catch (SQLException e) {
+                        LOG.error(e.getMessage(), e);
+                    }
+                    return "NULL";
+                }).collect(Collectors.joining(TAG_TABLE_NAME_MAP_KEY_SPLITTER));
+                String tbname = rs.getString("tbname");
+                tags2tbname.put(tagStr, tbname);
+            }
+        }
+        tags2tbnameMaps.put(table, tags2tbname);
+        return tags2tbname;
+    }
 }

tdenginewriter/src/test/java/com/alibaba/datax/plugin/writer/tdenginewriter/DefaultDataHandlerTest.java

@@ -5,7 +5,6 @@ import com.alibaba.datax.common.element.LongColumn;
 import com.alibaba.datax.common.element.Record;
 import com.alibaba.datax.common.element.StringColumn;
 import com.alibaba.datax.common.plugin.TaskPluginCollector;
-import com.alibaba.datax.common.spi.Writer;
 import com.alibaba.datax.common.util.Configuration;
 import com.alibaba.datax.core.transport.record.DefaultRecord;
 import org.junit.AfterClass;
@@ -60,7 +59,7 @@ public class DefaultDataHandlerTest {
         Map<String, TableMeta> tableMetas = schemaManager.loadTableMeta(tables);
         Map<String, List<ColumnMeta>> columnMetas = schemaManager.loadColumnMetas(tables);
         handler.setTableMetas(tableMetas);
-        handler.setColumnMetas(columnMetas);
+        handler.setTbnameColumnMetasMap(columnMetas);
         handler.setSchemaManager(schemaManager);
 
         int count = handler.writeBatch(conn, recordList);
@@ -98,7 +97,7 @@ public class DefaultDataHandlerTest {
         Map<String, TableMeta> tableMetas = schemaManager.loadTableMeta(tables);
         Map<String, List<ColumnMeta>> columnMetas = schemaManager.loadColumnMetas(tables);
         handler.setTableMetas(tableMetas);
-        handler.setColumnMetas(columnMetas);
+        handler.setTbnameColumnMetasMap(columnMetas);
         handler.setSchemaManager(schemaManager);
 
         int count = handler.writeBatch(conn, recordList);
@@ -138,7 +137,7 @@ public class DefaultDataHandlerTest {
         Map<String, TableMeta> tableMetas = schemaManager.loadTableMeta(tables);
         Map<String, List<ColumnMeta>> columnMetas = schemaManager.loadColumnMetas(tables);
         handler.setTableMetas(tableMetas);
-        handler.setColumnMetas(columnMetas);
+        handler.setTbnameColumnMetasMap(columnMetas);
         handler.setSchemaManager(schemaManager);
 
         int count = handler.writeBatch(connection, recordList);
@@ -177,7 +176,7 @@ public class DefaultDataHandlerTest {
         Map<String, TableMeta> tableMetas = schemaManager.loadTableMeta(tables);
         Map<String, List<ColumnMeta>> columnMetas = schemaManager.loadColumnMetas(tables);
         handler.setTableMetas(tableMetas);
-        handler.setColumnMetas(columnMetas);
+        handler.setTbnameColumnMetasMap(columnMetas);
         handler.setSchemaManager(schemaManager);
 
         int count = handler.writeBatch(conn, recordList);
@@ -216,7 +215,7 @@ public class DefaultDataHandlerTest {
         Map<String, TableMeta> tableMetas = schemaManager.loadTableMeta(tables);
         Map<String, List<ColumnMeta>> columnMetas = schemaManager.loadColumnMetas(tables);
         handler.setTableMetas(tableMetas);
-        handler.setColumnMetas(columnMetas);
+        handler.setTbnameColumnMetasMap(columnMetas);
         handler.setSchemaManager(schemaManager);
 
         int count = handler.writeBatch(conn, recordList);
@@ -255,7 +254,7 @@ public class DefaultDataHandlerTest {
         Map<String, TableMeta> tableMetas = schemaManager.loadTableMeta(tables);
         Map<String, List<ColumnMeta>> columnMetas = schemaManager.loadColumnMetas(tables);
         handler.setTableMetas(tableMetas);
-        handler.setColumnMetas(columnMetas);
+        handler.setTbnameColumnMetasMap(columnMetas);
         handler.setSchemaManager(schemaManager);
 
         int count = handler.writeBatch(conn, recordList);

tdenginewriter/src/test/java/com/alibaba/datax/plugin/writer/tdenginewriter/Mongo2TDengineTest.java

@@ -0,0 +1,16 @@
+package com.alibaba.datax.plugin.writer.tdenginewriter;
+
+import com.alibaba.datax.core.Engine;
+import org.junit.Test;
+
+public class Mongo2TDengineTest {
+
+    @Test
+    public void case01() throws Throwable {
+
+        // when
+        String[] params = {"-mode", "standalone", "-jobid", "-1", "-job", "src/test/resources/mongo2t.json"};
+        System.setProperty("datax.home", "../target/datax/datax");
+        Engine.entry(params);
+    }
+}

tdenginewriter/src/test/java/com/alibaba/datax/plugin/writer/tdenginewriter/SchemaManagerTest.java

@@ -1,6 +1,5 @@
 package com.alibaba.datax.plugin.writer.tdenginewriter;
 
-import com.alibaba.fastjson.util.TypeUtils;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;
@@ -62,6 +61,23 @@ public class SchemaManagerTest {
         Assert.assertEquals(4, stb1.size());
     }
 
+    @Test
+    public void loadTagTableNameMap() throws SQLException {
+        // given
+        SchemaManager schemaManager = new SchemaManager(conn);
+        String table = "stb3";
+
+        // when
+        Map<String, String> tagTableMap = schemaManager.loadTagTableNameMap(table);
+
+        // then
+        Assert.assertEquals(2, tagTableMap.keySet().size());
+        Assert.assertTrue(tagTableMap.containsKey("11.1abc"));
+        Assert.assertTrue(tagTableMap.containsKey("22.2defg"));
+        Assert.assertEquals("tb5", tagTableMap.get("11.1abc"));
+        Assert.assertEquals("tb6", tagTableMap.get("22.2defg"));
+    }
+
     @BeforeClass
     public static void beforeClass() throws SQLException {
         conn = DriverManager.getConnection("jdbc:TAOS-RS://192.168.56.105:6041", "root", "taosdata");
@@ -76,6 +92,9 @@ public class SchemaManagerTest {
             stmt.execute("insert into tb3 using stb2 tags(1,1) values(now, 1, 2, 3)");
             stmt.execute("insert into tb4 using stb2 tags(2,2) values(now, 1, 2, 3)");
             stmt.execute("create table weather(ts timestamp, f1 int, f2 int, f3 int, t1 int, t2 int)");
+            stmt.execute("create table stb3(ts timestamp, f1 int) tags(t1 int, t2 float, t3 nchar(32))");
+            stmt.execute("insert into tb5 using stb3 tags(1,1.1,'abc') values(now, 1)");
+            stmt.execute("insert into tb6 using stb3 tags(2,2.2,'defg') values(now, 2)");
         }
     }
 

tdenginewriter/src/test/resources/incremental_sync/clean_env.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+datax_home_dir=$(dirname $(readlink -f "$0"))
+
+curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'drop table if exists db2.stb2;' 192.168.1.93:6041/rest/sql
+curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'create table if not exists db2.stb2 (`ts` TIMESTAMP,`f2` SMALLINT,`f4` BIGINT,`f5` FLOAT,`f6` DOUBLE,`f7` DOUBLE,`f8` BOOL,`f9` NCHAR(100),`f10` NCHAR(200)) TAGS (`f1` TINYINT,`f3` INT);' 192.168.1.93:6041/rest/sql
+
+rm -f ${datax_home_dir}/log/*
+rm -f ${datax_home_dir}/job/*.csv

tdenginewriter/src/test/resources/incremental_sync/csv2t-jni.json

@@ -0,0 +1,106 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "txtfilereader",
+          "parameter": {
+            "path": [
+              "/root/workspace/tmp/a.txt"
+            ],
+            "encoding": "UTF-8",
+            "column": [
+              {
+                "index": 0,
+                "type": "date",
+                "format": "yyyy-MM-dd HH:mm:ss.SSS"
+              },
+              {
+                "index": 1,
+                "type": "long"
+              },
+              {
+                "index": 2,
+                "type": "long"
+              },
+              {
+                "index": 3,
+                "type": "long"
+              },
+              {
+                "index": 4,
+                "type": "long"
+              },
+              {
+                "index": 5,
+                "type": "double"
+              },
+              {
+                "index": 6,
+                "type": "double"
+              },
+              {
+                "index": 7,
+                "type": "boolean"
+              },
+              {
+                "index": 8,
+                "type": "string"
+              },
+              {
+                "index": 9,
+                "type": "string"
+              },
+              {
+                "index": 10,
+                "type": "date",
+                "format": "yyyy-MM-dd HH:mm:ss.SSS"
+              },
+              {
+                "index": 11,
+                "type": "string"
+              }
+            ],
+            "fieldDelimiter": ","
+          }
+        },
+        "writer": {
+          "name": "tdenginewriter",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "ts",
+              "f1",
+              "f2",
+              "f3",
+              "f4",
+              "f5",
+              "f6",
+              "f7",
+              "f8",
+              "f9",
+              "t1",
+              "tbname"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:TAOS://192.168.1.93:6030/db2"
+              }
+            ],
+            "batchSize": 1000,
+            "ignoreTagsUnmatched": true
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/csv2t-restful.json

@@ -0,0 +1,57 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "txtfilereader",
+          "parameter": {
+            "path": [
+              "/root/workspace/tmp/a.txt"
+            ],
+            "encoding": "UTF-8",
+            "column": [
+              "*"
+            ],
+            "fieldDelimiter": ","
+          }
+        },
+        "writer": {
+          "name": "tdenginewriter",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "ts",
+              "f1",
+              "f2",
+              "f3",
+              "f4",
+              "f5",
+              "f6",
+              "f7",
+              "f8",
+              "f9",
+              "t1",
+              "tbname"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:TAOS-RS://192.168.1.93:6041/db2"
+              }
+            ],
+            "batchSize": 1000,
+            "ignoreTagsUnmatched": true
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/dm2t-jni.json

@@ -0,0 +1,62 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "rdbmsreader",
+          "parameter": {
+            "username": "TESTUSER",
+            "password": "test123456",
+            "connection": [
+              {
+                "querySql": [
+                  "select concat(concat(concat('t', f1), '_'),f3) as tbname,* from stb1;"
+                ],
+                "jdbcUrl": [
+                  "jdbc:dm://192.168.0.72:5236"
+                ]
+              }
+            ],
+            "fetchSize": 1024
+          }
+        },
+        "writer": {
+          "name": "tdenginewriter",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "tbname",
+              "ts",
+              "f1",
+              "f2",
+              "f3",
+              "f4",
+              "f5",
+              "f6",
+              "f7",
+              "f8",
+              "f9",
+              "f10"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:TAOS://192.168.1.93:6030/db2"
+              }
+            ],
+            "batchSize": 1000,
+            "ignoreTagsUnmatched": true
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/dm2t-restful.json

@@ -0,0 +1,62 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "rdbmsreader",
+          "parameter": {
+            "username": "TESTUSER",
+            "password": "test123456",
+            "connection": [
+              {
+                "querySql": [
+                  "select concat(concat(concat('t', f1), '_'),f3) as tbname,* from stb1;"
+                ],
+                "jdbcUrl": [
+                  "jdbc:dm://192.168.0.72:5236"
+                ]
+              }
+            ],
+            "fetchSize": 1024
+          }
+        },
+        "writer": {
+          "name": "tdenginewriter",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "tbname",
+              "ts",
+              "f1",
+              "f2",
+              "f3",
+              "f4",
+              "f5",
+              "f6",
+              "f7",
+              "f8",
+              "f9",
+              "f10"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:TAOS-RS://192.168.1.93:6041/db2"
+              }
+            ],
+            "batchSize": 1000,
+            "ignoreTagsUnmatched": true
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/dm2t-update.json

@@ -0,0 +1,63 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "rdbmsreader",
+          "parameter": {
+            "username": "TESTUSER",
+            "password": "test123456",
+            "connection": [
+              {
+                "querySql": [
+                  "select concat(concat(concat('t', f1), '_'),f3) as tbname,* from stb1"
+                ],
+                "jdbcUrl": [
+                  "jdbc:dm://192.168.0.72:5236"
+                ]
+              }
+            ],
+            "where": "1=1",
+            "fetchSize": 1024
+          }
+        },
+        "writer": {
+          "name": "tdenginewriter",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "tbname",
+              "ts",
+              "f1",
+              "f2",
+              "f3",
+              "f4",
+              "f5",
+              "f6",
+              "f7",
+              "f8",
+              "f9",
+              "f10"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:TAOS-RS://192.168.1.93:6041/db2"
+              }
+            ],
+            "batchSize": 1000,
+            "ignoreTagsUnmatched": true
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/dm2t_sync.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+set -e
+#set -x
+
+datax_home_dir=$(dirname $(readlink -f "$0"))
+table_name="stb1"
+update_key="ts"
+
+while getopts "hd:t:" arg; do
+  case $arg in
+  d)
+    datax_home_dir=$(echo $OPTARG)
+    ;;
+  v)
+    table_name=$(echo $OPTARG)
+    ;;
+  h)
+    echo "Usage: $(basename $0) -d [datax_home_dir] -t [table_name] -k [update_key]"
+    echo "                    -h help"
+    exit 0
+    ;;
+  ?) #unknow option
+    echo "unkonw argument"
+    exit 1
+    ;;
+  esac
+done
+
+if [[ -e ${datax_home_dir}/job/${table_name}.csv ]]; then
+  MAX_TIME=$(cat ${datax_home_dir}/job/${table_name}.csv)
+else
+  MAX_TIME="null"
+fi
+current_datetime=$(date +"%Y-%m-%d %H:%M:%S")
+current_timestamp=$(date +%s)
+
+if [ "$MAX_TIME" != "null" ]; then
+  WHERE="${update_key} >= '$MAX_TIME' and ${update_key} < '$current_datetime'"
+  sed "s/1=1/$WHERE/g" ${datax_home_dir}/job/dm2t-update.json >${datax_home_dir}/job/dm2t_${current_timestamp}.json
+  echo "incremental data synchronization, from '${MAX_TIME}' to '${current_datetime}'"
+  python ${datax_home_dir}/bin/datax.py ${datax_home_dir}/job/dm2t_${current_timestamp}.json 1> /dev/null 2>&1
+else
+  echo "full data synchronization, to '${current_datetime}'"
+  python ${datax_home_dir}/bin/datax.py ${datax_home_dir}/job/dm2t-update.json 1> /dev/null 2>&1
+fi
+
+if [[ $? -ne 0 ]]; then
+  echo "datax migration job falied"
+else
+  echo ${current_datetime} >$datax_home_dir/job/${table_name}.csv
+  echo "datax migration job success"
+fi
+
+rm -rf ${datax_home_dir}/job/dm2t_${current_timestamp}.json
+
+#while true; do ./dm2t_sync.sh; sleep 5s; done

tdenginewriter/src/test/resources/incremental_sync/t2dm-jni.json

@@ -0,0 +1,50 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "tdenginereader",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "*"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb1"
+                ],
+                "jdbcUrl": "jdbc:TAOS://192.168.56.105:6030/db1"
+              }
+            ]
+          }
+        },
+        "writer": {
+          "name": "rdbmswriter",
+          "parameter": {
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:dm://192.168.0.72:5236"
+              }
+            ],
+            "username": "TESTUSER",
+            "password": "test123456",
+            "table": "stb2",
+            "column": [
+              "*"
+            ]
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/t2dm-restful.json

@@ -0,0 +1,50 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "tdenginereader",
+          "parameter": {
+            "username": "root",
+            "password": "taosdata",
+            "column": [
+              "*"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "stb1"
+                ],
+                "jdbcUrl": "jdbc:TAOS-RS://192.168.56.105:6041/db1"
+              }
+            ]
+          }
+        },
+        "writer": {
+          "name": "rdbmswriter",
+          "parameter": {
+            "connection": [
+              {
+                "table": [
+                  "stb2"
+                ],
+                "jdbcUrl": "jdbc:dm://192.168.0.72:5236"
+              }
+            ],
+            "username": "TESTUSER",
+            "password": "test123456",
+            "table": "stb2",
+            "column": [
+              "*"
+            ]
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}

tdenginewriter/src/test/resources/incremental_sync/upload.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+scp t2dm-restful.json root@192.168.56.105:/root/workspace/tmp/datax/job
+scp t2dm-jni.json root@192.168.56.105:/root/workspace/tmp/datax/job
+scp dm2t-restful.json root@192.168.56.105:/root/workspace/tmp/datax/job
+scp dm2t-jni.json root@192.168.56.105:/root/workspace/tmp/datax/job
+scp dm2t-update.json root@192.168.56.105:/root/workspace/tmp/datax/job
+scp csv2t-restful.json root@192.168.56.105:/root/workspace/tmp/datax/job
+scp csv2t-jni.json root@192.168.56.105:/root/workspace/tmp/datax/job
+
+
+scp dm2t_sync.sh root@192.168.56.105:/root/workspace/tmp/datax
+scp clean_env.sh root@192.168.56.105:/root/workspace/tmp/datax

tdenginewriter/src/test/resources/mongo2t.json

@@ -0,0 +1,66 @@
+{
+  "job": {
+    "content": [
+      {
+        "reader": {
+          "name": "mongodbreader",
+          "parameter": {
+            "address": [
+              "192.168.1.213:27017"
+            ],
+            "userName": "",
+            "userPassword": "",
+            "dbName": "testdb",
+            "collectionName": "monitor_data",
+            "column": [
+              {
+                "name": "ct",
+                "type": "date"
+              },
+              {
+                "name": "pv",
+                "type": "float"
+              },
+              {
+                "name": "tv",
+                "type": "float"
+              },
+              {
+                "name": "pid",
+                "type": "float"
+              }
+            ]
+          }
+        },
+        "writer": {
+          "name": "tdenginewriter",
+          "parameter": {
+            "username": "root",
+            "password": "hmdata",
+            "column": [
+              "ts",
+              "pressure",
+              "temperature",
+              "position_id"
+            ],
+            "connection": [
+              {
+                "table": [
+                  "pipeline_data"
+                ],
+                "jdbcUrl": "jdbc:TAOS-RS://192.168.1.213:6041/mongo3040"
+              }
+            ],
+            "batchSize": 1000,
+            "ignoreTagsUnmatched": true
+          }
+        }
+      }
+    ],
+    "setting": {
+      "speed": {
+        "channel": 1
+      }
+    }
+  }
+}