{"id":7373,"date":"2021-12-16T15:59:30","date_gmt":"2021-12-16T07:59:30","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=7373"},"modified":"2022-08-04T17:40:53","modified_gmt":"2022-08-04T09:40:53","slug":"tdt%e5%9f%ba%e4%ba%8e%e6%96%b0%e5%a2%9e%e4%b8%8e%e6%9b%b4%e6%96%b0%e6%97%b6%e9%97%b4%e6%88%b3%e8%bf%9b%e8%a1%8c%e5%90%8c%e6%ad%a5%ef%bc%88%e7%89%a9%e7%90%86%e5%88%a0%e9%99%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=7373","title":{"rendered":"TDT\u57fa\u4e8e\u65b0\u589e\u4e0e\u66f4\u65b0\u65f6\u95f4\u6233\u8fdb\u884c\u540c\u6b65\uff08\u7269\u7406\u5220\u9664\uff09"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<hr \/>\n<p>\u5728TDT\u6279\u91cf\u6570\u636e\u6d41\u4e2d\uff0c\u67093\u79cd\u540c\u6b65\u65b9\u5f0f\u53ef\u9009\uff0c\u5305\u62ec<code>\u901a\u8fc7\u65e5\u5fd7<\/code>\uff0c<code>\u901a\u8fc7\u65f6\u95f4\u6233\u548c\u6807\u8bc6\u5217<\/code>\uff0c<code>\u901a\u8fc7\u65b0\u589e\u4e0e\u66f4\u65b0\u65f6\u95f4\u6233<\/code>\u3002\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd<code>\u901a\u8fc7\u65b0\u589e\u4e0e\u66f4\u65b0\u65f6\u95f4\u6233<\/code> \u5728\u5305\u542b\u7269\u7406\u5220\u9664\u7684\u573a\u666f\u4e0b\u662f\u5982\u4f55\u5b9e\u73b0\u540c\u6b65\u7684\uff0c\u5e0c\u671b\u80fd\u591f\u65b9\u4fbf\u5927\u5bb6\u7406\u89e3\u5e76\u719f\u6089\u8be5\u529f\u80fd\u70b9\u3002<\/p>\n<p><strong>\u529f\u80fd\u9002\u7528\u573a\u666f\uff1a<\/strong><\/p>\n<ul>\n<li>\u9002\u5408\u8868\u4e2d\u6709\u8bb0\u5f55\u63d2\u5165\u65f6\u95f4\u548c\u66f4\u65b0\u65f6\u95f4\u7684\u5217\uff0c\u8fd9\u5f20\u8868\u4f1a\u8fdb\u884c\u7269\u7406\u5220\u9664<\/li>\n<li>\u5b58\u5728\u4e00\u5f20\u5220\u9664\u8bb0\u5f55\u8868\uff0c\u8bb0\u5f55\u88ab\u5220\u9664\u7684\u6570\u636e\uff08\u5fc5\u9700\u6709\u88ab\u5220\u9664\u6570\u636e\u7684\u4e3b\u952e\uff09<\/li>\n<li>\u76ee\u524d\u53ea\u652f\u6301\u5355\u4e00\u4e3b\u952e\u6e90\u8868<\/li>\n<\/ul>\n<p><strong>\u8be5\u65b9\u6cd5\u7684\u5f0a\u7aef\uff1a<\/strong><\/p>\n<ul>\n<li>\u9700\u8981\u501f\u52a9\u5220\u9664\u8bb0\u5f55\u8868\u6bcf\u6b21\u5728ORCTransactionSync_Writer\u9636\u6bb5\u505a\u4e00\u6b21delete\u64cd\u4f5c\uff0c\u8be5\u8868\u6570\u636e\u91cf\u5f88\u5927\u7684\u8bdd\uff0c\u6027\u80fd\u4f1a\u5f88\u53d7\u5f71\u54cd\uff0c\u76f8\u5f53\u4e00\u505a\u4e86\u4e00\u6b21join\u5173\u8054<\/li>\n<\/ul>\n<p>\u4e3e\u4f8b\u8bf4\u660e\uff1a<\/p>\n<p><strong>\u6570\u636e\u8868test_time2\uff0c\u8fd9\u5f20\u8868\u4e5f\u6709\u63d2\u5165\u65f6\u95f4\u5217create_time\u548c\u66f4\u65b0\u65f6\u95f4\u5217update_time\uff0c\u4f46\u662f\u8fd9\u5f20\u8868\u4f1a\u8fdb\u884c\u7269\u7406\u5220\u9664\uff0c\u53e6\u6709\u5220\u9664\u8bb0\u5f55\u8868table_delete_op<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>id<\/th>\n<th>username<\/th>\n<th>create_time<\/th>\n<th>update_time<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>a<\/td>\n<td>2020-09-23 12:25:24<\/td>\n<td>2020-09-23 12:30:24<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>c<\/td>\n<td>2020-09-23 12:26:24<\/td>\n<td>2020-09-23 12:35:24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>table_delete_op\uff0c\u5220\u9664\u8bb0\u5f55\u8868\uff0crecord_id\u5c31\u662f\u88ab\u5220\u9664\u6570\u636e\u7684\u4e3b\u952e\uff0cdelete_time\u662f\u5220\u9664\u65f6\u95f4\u3002<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>id<\/th>\n<th>record_id<\/th>\n<th>delete_time<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>2<\/td>\n<td>2020-09-23 12:31:24<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>4<\/td>\n<td>2020-09-23 12:36:24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u5927\u81f4\u7684\u6d4b\u8bd5\u6b65\u9aa4\u5982\u4e0b\uff1a<\/strong><\/p>\n<ol>\n<li>\u65b0\u589e\u6d4b\u8bd5\u6570\u636e\n<pre><code class=\"language-sql\">INSERT INTO test_time2(username,create_time)VALUES('zhangsan',NOW());\nINSERT INTO test_time2(username,create_time)VALUES('lisi',NOW());\nINSERT INTO test_time2(username,create_time)VALUES('wangwu',NOW());<\/code><\/pre>\n<\/li>\n<li>update\u4e00\u6761\u6570\u636e\n<pre><code class=\"language-sql\">UPDATE test_time2 set username='new_lisi' where id=2;<\/code><\/pre>\n<\/li>\n<li>\u7269\u7406\u5220\u9664\uff0c\u540c\u65f6\u4f1a\u5728\u5220\u9664\u8bb0\u5f55\u8868\u4e2d\u8bb0\u5f55\u8be5\u64cd\u4f5c\n<pre><code class=\"language-sql\">delete from test_time2 where id=3;\ninsert into table_delete_op(record_id) values(3);<\/code><\/pre>\n<\/li>\n<\/ol>\n<p>\u751f\u6210\u7684\u6570\u636e\u6d41\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n<blockquote>\n<p>SyncTimestamp_Reader  &#8211;&gt;  ColumnMap_Transformer  &#8211;&gt;  ORCTransactionSync_Writer<\/p>\n<\/blockquote>\n<h3>\u793a\u4f8b<\/h3>\n<hr \/>\n<p><strong>step1\uff1a\u6e90\u7aef\u521b\u5efa\u6d4b\u8bd5\u8868<\/strong><\/p>\n<pre><code class=\"language-sql\">--mysql\nDROP TABLE IF EXISTS test_time2;\nCREATE TABLE <code>test_time2<\/code> (\n  <code>id<\/code> int(11) NOT NULL AUTO_INCREMENT,\n  <code>username<\/code> varchar(20) DEFAULT NULL,\n  <code>create_time<\/code> datetime DEFAULT NULL,\n  <code>update_time<\/code> timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,\n  PRIMARY KEY (<code>id<\/code>)\n) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;\n\nDROP TABLE IF EXISTS table_delete_op;\nCREATE TABLE <code>table_delete_op<\/code> (\n  <code>id<\/code> int(11) NOT NULL AUTO_INCREMENT,\n  <code>record_id<\/code> int(11) NOT NULL,\n  <code>delete_time<\/code> timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,\n  PRIMARY KEY (<code>id<\/code>)\n) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;\n\n--\u63d2\u51653\u6761\u521d\u59cb\u6570\u636e\nINSERT INTO test_time2(username,create_time)VALUES('zhangsan',NOW());\nINSERT INTO test_time2(username,create_time)VALUES('lisi',NOW());\nINSERT INTO test_time2(username,create_time)VALUES('wangwu',NOW());<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639640775358.png\" alt=\"file\" \/><\/p>\n<p><strong>step2\uff1a\u521b\u5efaTDT\u6279\u91cf\u540c\u6b65\u6570\u636e\u6d41<\/strong><\/p>\n<p><strong>\u6e90\u7aef\u9009\u62e9\uff1a<\/strong><\/p>\n<p>\u65b0\u5efa\u6279\u91cf\u6570\u636e\u6d41\uff0c\u9009\u62e9\u540c\u6b65<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639640848774.png\" alt=\"file\" \/><\/p>\n<pre><code class=\"language-ruby\"># \u586b\u5199\u89c4\u8303\u5982\u4e0b\uff1a\n\u542b\u7269\u7406\u5220\u9664\u64cd\u4f5c\uff1a\u8fd9\u91cc\u52fe\u9009\n\u4e3b\u952e\u5217\uff1a\u8fd9\u91cc\u9009\u53d6\u6e90\u8868\u4e2d\u7684PK\u5217ID\n\u65b0\u589e\u65f6\u95f4\u5217\uff1a\u8fd9\u91cc\u9009\u53d6\u6e90\u8868\u4e2d\u7684create_time\u5b57\u6bb5\n\u66f4\u65b0\u65f6\u95f4\u5217\uff1a\u8fd9\u91cc\u9009\u53d6\u6e90\u8868\u4e2d\u7684update_time\u5b57\u6bb5\n\u81ea\u5b9a\u4e49sql\uff1a\u8fd9\u91cc\u586b\u5199<code>select record_id as id, delete_time from lkw.table_delete_op<\/code>\uff0c\u6ce8\u610f\u8868\u540d\u5fc5\u987b\u5305\u542bdatabase\uff0c\u4e14\u4e0d\u80fd\u6709\u6362\u884c\uff0c\u7ed3\u5c3e\u4e0d\u80fd\u6709\u5206\u53f7<\/code><\/pre>\n<p><strong>\u89c4\u5219\u914d\u7f6e\uff1a<\/strong> \u8fd9\u91cc\u4e0d\u505a\u914d\u7f6e\u4ecb\u7ecd<\/p>\n<p><strong>\u76ee\u6807\u7aef\u9009\u62e9\uff1a<\/strong><\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639640961774.png\" alt=\"file\" \/><\/p>\n<p><strong>\u5217\u8868\u5c55\u793a\uff1a<\/strong><\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639640971527.png\" alt=\"file\" \/><\/p>\n<p>\u70b9\u51fb\u786e\u5b9a\u4e4b\u540e\uff0c\u6279\u91cf\u6570\u636e\u6d41\u521b\u5efa\u5b8c\u6210\uff0c\u70b9\u51fb\u5230\u5185\u90e8\u53ef\u4ee5\u770b\u5230\u751f\u6210\u7684\u6570\u636e\u6d41\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641007664.png\" alt=\"file\" \/><\/p>\n<p>SyncJDBC_Reader\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639640997676.png\" alt=\"file\" \/><\/p>\n<p>ORCTransactionSync_Writer\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641030604.png\" alt=\"file\" \/><\/p>\n<p>\u8fd9\u91cc\u6211\u4eec\u770b\u4e0b\u53f3\u4e0a\u89d2\u521d\u59cb\u7684\u53c2\u6570\u914d\u7f6e\u60c5\u51b5\uff0c<code>tdt.job.record.last.original.value<\/code> \u548c <code>tdt.job.record.last.value<\/code> \u5747\u4e3a\u7a7a<\/p>\n<p><strong>step3\uff1a\u6570\u636e\u6d41\u8c03\u8bd5(insert)<\/strong><\/p>\n<p>\u8fdb\u5165\u8c03\u8bd5\u6a21\u5f0f\uff0c\u70b9\u51fb\u8c03\u8bd5\u6309\u94ae<\/p>\n<p>\u9996\u6b21\u8c03\u8bd5\uff0c\u6211\u4eec\u7b80\u5355\u89e3\u6790\u4e00\u4e0b\u6267\u884c\u65e5\u5fd7\uff1a<\/p>\n<p>SyncJDBC_Reader\u9636\u6bb5\uff0c\u901a\u8fc7jdbc\u8bfb\u53d6\u6e90\u8868\uff0c\u6ce8\u610f\u5176\u4e2d\u7684<code>mapreduce.jdbc.input.query<\/code>\uff0c\u5728\u7b2c\u4e00\u6b21\u6267\u884c\u540c\u6b65\u6570\u636e\u6d41\u65f6\uff0c\u7531\u4e8e\u53c2\u6570\u4e2d\u6ca1\u6709\u8bb0\u5f55<code>tdt.job.record.last.original.value<\/code> \u548c <code>tdt.job.record.last.value<\/code>\uff0c\u6240\u4ee5\u8fd9\u91cc\u9009\u53d6\u6e90\u6570\u636e\u4e2dUPDATE_TIME\u5217&lt;\u6700\u5927\u503c\u7684\u90e8\u5206\uff0c\u76f8\u5f53\u4e8e\u7b2c\u4e00\u6b21\u505a\u4e86\u4e00\u6b21\u5168\u91cf\u5bfc\u6570\u3002<\/p>\n<pre><code class=\"language-sql\">CREATE TABLE <code>default<\/code>.<code>TDT__INTERNAL__fe6fd609424942e481d7bc01db4fe566<\/code> (\n<code>id<\/code> int,<code>username<\/code> string,<code>create_time<\/code> timestamp,<code>update_time<\/code> timestamp\n) ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.tdt.JDBCSerde'\nSTORED AS INPUTFORMAT 'org.apache.hadoop.hive.ql.io.tdt.JDBCDBInputFormat' \nOUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'\nTBLPROPERTIES(\n'mapreduce.jdbc.driver.class'='com.mysql.jdbc.Driver',\n'mapreduce.jdbc.url'='jdbc:mysql:\/\/172.22.23.9:3306',\n'mapreduce.jdbc.input.query'='select * from <code>lkw<\/code>.<code>test_time2<\/code> where 1=1 and <code>update_time<\/code> <= \\'2021-12-16 15:46:05.0\\'','mapreduce.jdbc.input.count.query'='select count(*) from (select * from <code>lkw<\/code>.<code>test_time2<\/code> where 1=1 and <code>update_time<\/code> <= \\'2021-12-16 15:46:05.0\\') tdt_sq_alias',\n'mapreduce.jdbc.splits.number'='1',\n'mapreduce.jdbc.username'='root', \n'mapreduce.jdbc.password'='123456',\n'mapreduce.jdbc.driver.file'='\/tmp\/transporter1\/DRIVERS\/mysql-connector-java-5.1.39_admin1638152300550.jar')<\/code><\/pre>\n<pre><code class=\"language-sql\">--\u76ee\u6807ORC\u4e8b\u52a1\u8868\u548c\u6e90\u8868table_data\u7ed3\u6784\u4e00\u81f4\nCREATE TABLE IF NOT EXISTS <code>default<\/code>.<code>test_time2<\/code> (\n<code>id<\/code> int,<code>username<\/code> string,<code>create_time<\/code> timestamp,<code>update_time<\/code> timestamp\n)\nCLUSTERED BY\n(<code>id<\/code>)\nINTO\n3 BUCKETS\nSTORED AS ORC TBLPROPERTIES ('transactional'='true')<\/code><\/pre>\n<p>\u8fd9\u91cc\u6211\u4eec\u770b\u4e0b\u53c2\u6570\u53d8\u5316\uff0c<code>tdt.job.record.last.original.value<\/code> \u548c <code>tdt.job.record.last.value<\/code> \u53d1\u751f\u6539\u53d8\uff0c\u503c\u66f4\u65b0\u4e3a<code>2021-12-16 15:46:05.0<\/code> \u548c \u65f6\u95f4\u6233 <code>1639640765<\/code><\/p>\n<p>inceptor\u4e2d\u5f53\u524d\u6570\u636e\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641095410.png\" alt=\"file\" \/><\/p>\n<p><strong>step4\uff1a\u6570\u636e\u6d41\u8c03\u8bd5(\u6267\u884cupdate)<\/strong><\/p>\n<p>\u5728mysql\u4e2d\u6a21\u62dfupdate\u6d4b\u8bd5\u6570\u636e<\/p>\n<pre><code class=\"language-sql\">UPDATE test_time2 set username='new_lisi' where id=2;<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641227694.png\" alt=\"file\" \/><\/p>\n<p>\u8fd9\u91ccusername\u548cupdate_time\u5747\u53d1\u751f\u6539\u53d8\u3002<\/p>\n<p>\u518d\u6b21\u8c03\u8bd5\uff0c\u5206\u6790\u4e00\u4e0b\u65e5\u5fd7\uff1a<\/p>\n<p>SyncJDBC_Reader\u9636\u6bb5\uff0c\u901a\u8fc7jdbc\u8bfb\u53d6\u6e90\u8868\uff0c\u6ce8\u610f\u5176\u4e2d\u7684<code>mapreduce.jdbc.input.query<\/code>\uff0cupdate_time\u8303\u56f4\u8981\u6c42\u5728<code>tdt.job.record.last.original.value<\/code> \u548c \u5f53\u524d\u6e90\u8868\u6700\u5927\u503c\u4e4b\u95f4\u3002<\/p>\n<pre><code class=\"language-sql\">CREATE TABLE <code>default<\/code>.<code>TDT__INTERNAL__23b38f3b5d044bd08644f503c31f82ce<\/code> (\n<code>id<\/code> int,<code>username<\/code> string,<code>create_time<\/code> timestamp,<code>update_time<\/code> timestamp\n) ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.tdt.JDBCSerde'\nSTORED AS INPUTFORMAT 'org.apache.hadoop.hive.ql.io.tdt.JDBCDBInputFormat' \nOUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'\nTBLPROPERTIES(\n'mapreduce.jdbc.driver.class'='com.mysql.jdbc.Driver', \n'mapreduce.jdbc.url'='jdbc:mysql:\/\/172.22.23.9:3306',\n'mapreduce.jdbc.input.query'='select * from <code>lkw<\/code>.<code>test_time2<\/code> where 1=1 and <code>update_time<\/code> <= \\'2021-12-16 15:53:26.0\\' and <code>update_time<\/code> > \\'2021-12-16 15:46:05.0\\'',\n'mapreduce.jdbc.input.count.query'='select count(*) from (select * from <code>lkw<\/code>.<code>test_time2<\/code> where 1=1 and <code>update_time<\/code> <= \\'2021-12-16 15:53:26.0\\' and <code>update_time<\/code> > \\'2021-12-16 15:46:05.0\\') tdt_sq_alias',\n'mapreduce.jdbc.splits.number'='1',\n'mapreduce.jdbc.username'='root', \n'mapreduce.jdbc.password'='123456',\n'mapreduce.jdbc.driver.file'='\/tmp\/transporter1\/DRIVERS\/mysql-connector-java-5.1.39_admin1638152300550.jar')<\/code><\/pre>\n<p><strong><font color=red>ORCTransactionSync_Writer\u9636\u6bb5\uff0c\u83b7\u53d6<code>lkw.test_time2<\/code>\u8868\u4e2d\u54ea\u4e9b\u6570\u636e\u9700\u8981\u505a\u4e86<code>update<\/code>\uff0c\u7136\u540e\u6267\u884c\u6839\u636e\u8fd9\u90e8\u5206\u7684ID\u505a\u5220\u9664\u64cd\u4f5c**<em>TDT__VIEW_FINAL_DELETE_RECORD<\/em><\/strong>\u3002<\/font>**<\/p>\n<pre><code class=\"language-sql\">DELETE <code>default<\/code>.<code>test_time2<\/code>\nWHERE\n(\n<code>id<\/code>\n) IN (\nSELECT\n<code>id<\/code>\nFROM\n<code>default<\/code>.<code>TDT__VIEW_FINAL_DELETE_RECORD__ab24496e157044ababf7d0080e224da8<\/code>\n)<\/code><\/pre>\n<p><strong><font color=red>\u7136\u540e\u518d\u53bb\u5224\u65ad\u83b7\u53d6<code>lkw.table_delete_op<\/code>\u8868\u4e2d\u54ea\u4e9b\u6570\u636e\u9700\u8981\u505a\u4e86<code>delete<\/code>\uff0c\u7136\u540e\u6267\u884c\u6839\u636e\u8fd9\u90e8\u5206\u7684ID\u505a\u5220\u9664\u64cd\u4f5c\uff08**<em>TDT__VIEW_EXTRA_DELETE_RECORD<\/em><\/strong>\uff09\u3002<\/font>**<\/p>\n<pre><code class=\"language-sql\">DELETE <code>default<\/code>.<code>test_time2<\/code>\nWHERE\n(\n<code>id<\/code>\n) IN (\nSELECT\n<code>id<\/code>\nFROM\n<code>default<\/code>.<code>TDT__VIEW_EXTRA_DELETE_RECORD__ab24496e157044ababf7d0080e224da8<\/code>\n)<\/code><\/pre>\n<p><strong><font color=red>\u6700\u540e\uff0c\u5c06\u8fd9\u90e8\u5206<code>update<\/code>\u7684\u771f\u6b63\u6570\u636einsert\u5230\u76ee\u6807\u8868<\/font><\/strong><\/p>\n<pre><code class=\"language-sql\">INSERT\nINTO\n`\ndefault<code>.<\/code>test_time2` (\n<code>id<\/code>,<code>username<\/code>,<code>create_time<\/code>,<code>update_time<\/code>\n) select\n<code>id<\/code>,\n<code>username<\/code>,\n<code>create_time<\/code>,\n<code>update_time<\/code>\nfrom\n<code>default<\/code>.<code>TDT__VIEW__INSERT__ab24496e157044ababf7d0080e224da8<\/code><\/code><\/pre>\n<p>inceptor\u4e2d\u5f53\u524d\u6570\u636e\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641318915.png\" alt=\"file\" \/><\/p>\n<p><strong>step5\uff1a\u6570\u636e\u6d41\u8c03\u8bd5(\u6267\u884cdelete)<\/strong><\/p>\n<p>\u5728mysql\u4e2d\u6a21\u62df\u7269\u7406\u5220\u9664\u6570\u636e<\/p>\n<pre><code class=\"language-sql\">delete from test_time2 where id=3;\ninsert into table_delete_op(record_id) values(3);<\/code><\/pre>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641353946.png\" alt=\"file\" \/><\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641370728.png\" alt=\"file\" \/><\/p>\n<p>\u518d\u6b21\u8c03\u8bd5\uff0c\u5206\u6790\u4e00\u4e0b\u65e5\u5fd7\uff1a<\/p>\n<p>SyncJDBC_Reader\u9636\u6bb5\uff0c\u901a\u8fc7jdbc\u8bfb\u53d6\u6e90\u8868\uff0c\u6ce8\u610f\u5176\u4e2d\u7684<code>mapreduce.jdbc.input.query<\/code>\uff0cUPDATE_TIME\u8303\u56f4\u8981\u6c42\u5728<code>tdt.job.record.last.original.value<\/code> \u548c \u6700\u5927\u503c\u4e4b\u95f4\u3002<\/p>\n<pre><code class=\"language-sql\">CREATE TABLE <code>default<\/code>.<code>TDT__INTERNAL__0c2b6ac722bc4a2b9f9cde3a844e9ab8<\/code> (\n<code>id<\/code> int,<code>username<\/code> string,<code>create_time<\/code> timestamp,<code>update_time<\/code> timestamp\n) ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.tdt.JDBCSerde'\nSTORED AS INPUTFORMAT 'org.apache.hadoop.hive.ql.io.tdt.JDBCDBInputFormat' \nOUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'\nTBLPROPERTIES(\n'mapreduce.jdbc.driver.class'='com.mysql.jdbc.Driver',\n'mapreduce.jdbc.url'='jdbc:mysql:\/\/172.22.23.9:3306',\n'mapreduce.jdbc.input.query'='select * from <code>lkw<\/code>.<code>test_time2<\/code> where 1=1 and <code>update_time<\/code> <= \\'2021-12-16 15:53:26.0\\' and <code>update_time<\/code> > \\'2021-12-16 15:53:26.0\\'',\n'mapreduce.jdbc.input.count.query'='select count(*) from (select * from <code>lkw<\/code>.<code>test_time2<\/code> where 1=1 and <code>update_time<\/code> <= \\'2021-12-16 15:53:26.0\\' and <code>update_time<\/code> > \\'2021-12-16 15:53:26.0\\') tdt_sq_alias',\n'mapreduce.jdbc.splits.number'='1',\n'mapreduce.jdbc.username'='root', \n'mapreduce.jdbc.password'='123456',\n'mapreduce.jdbc.driver.file'='\/tmp\/transporter1\/DRIVERS\/mysql-connector-java-5.1.39_admin1638152300550.jar')<\/code><\/pre>\n<p>ORCTransactionSync_Writer\u9636\u6bb5\uff0c\u83b7\u53d6<code>lkw.table_delete_op<\/code>\u8868\u4e2d\u54ea\u4e9b\u6570\u636e\u9700\u8981<code>delete<\/code>\uff0c\u7136\u540e\u6267\u884c\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<pre><code class=\"language-sql\">CREATE TABLE <code>default<\/code>.<code>TDT__VIEW_EXTRA_DELETE_RECORD__0f6a8faf9b1b4e5eade19a0870f7d7aa<\/code> (\n<code>id<\/code> int,<code>delete_time<\/code> timestamp\n) ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.tdt.JDBCSerde'\nSTORED AS INPUTFORMAT 'org.apache.hadoop.hive.ql.io.tdt.JDBCDBInputFormat' \nOUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat' \nTBLPROPERTIES(\n'mapreduce.jdbc.driver.class'='com.mysql.jdbc.Driver', \n'mapreduce.jdbc.url'='jdbc:mysql:\/\/172.22.23.9:3306',\n'mapreduce.jdbc.input.query'='select * from (select record_id as id, delete_time from lkw.table_delete_op) tdt_sql_alias where 1=1 and <code>delete_time<\/code> <= \\'2021-12-16 15:53:26.0\\'',\n'mapreduce.jdbc.input.count.query'='select count(*) from (select * from (select record_id as id, delete_time from lkw.table_delete_op) tdt_sql_alias where 1=1 and <code>delete_time<\/code> <= \\'2021-12-16 15:53:26.0\\') tdt_sq_alias',\n'mapreduce.jdbc.splits.number'='1',\n'mapreduce.jdbc.username'='root', 'mapreduce.jdbc.password'='123456',\n'mapreduce.jdbc.driver.file'='\/tmp\/transporter7\/DRIVERS\/mysql-connector-java-5.1.46_admin1641814032446.jar')<\/code><\/pre>\n<pre><code class=\"language-sql\">DELETE <code>default<\/code>.<code>test_time2<\/code>\nWHERE\n(\n<code>id<\/code>\n) IN (\nSELECT\n<code>id<\/code>\nFROM\n<code>default<\/code>.<code>TDT__VIEW_EXTRA_DELETE_RECORD__0f6a8faf9b1b4e5eade19a0870f7d7aa<\/code>\n)<\/code><\/pre>\n<p>inceptor\u4e2d\u5f53\u524d\u6570\u636e\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/12\/image-1639641447641.png\" alt=\"file\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 \u5728TDT\u6279\u91cf\u6570\u636e\u6d41\u4e2d\uff0c\u67093\u79cd\u540c\u6b65\u65b9\u5f0f\u53ef\u9009\uff0c\u5305\u62ec\u901a\u8fc7\u65e5\u5fd7\uff0c\u901a\u8fc7\u65f6\u95f4\u6233\u548c\u6807\u8bc6\u5217\uff0c\u901a\u8fc7\u65b0\u589e\u4e0e\u66f4\u65b0\u65f6\u95f4\u6233\u3002\u672c ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=7373\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[],"class_list":["post-7373","post","type-post","status-publish","format-standard","hentry","category-configuration"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/7373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7373"}],"version-history":[{"count":1,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/7373\/revisions"}],"predecessor-version":[{"id":7464,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/7373\/revisions\/7464"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}