maxwell同步mysql到kafka（一个服务器启动多个）
创建mysql同步用户
CREATE USER 'maxwell'@'%' IDENTIFIED BY '123456'; GRANT ALL ON maxwell.* TO 'maxwell'@'%'; GRANT SELECT, REPLICATION CLIENT, REPLICATION SLAVE on *.* to 'maxwell'@'%'; 开启mysql binlog
a.修改 /etc/my.cnf 配置
log-bin=mysql-bin # 开启binlog binlog-format=ROW # 设置Binary Log记录方式为Row server_id=1 # 记住id 后续开发会使用 # 指定binlog日志文件的名字为mysql-bin，以及其存储路径 # 如果没有对log-bin指定log文件，默认在 /var/lib/mysql目录下以mysqld-bin.00000X等作为名称。 # 而 mysqld-bin.index则记录了所有的log的文件名称 # 使用时则使用mysqlbinlog /var/lib/mysql|grep "*****"等来追踪database的操作。 log-bin=/var/lib/mysql/mysql-bin datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock b.重启mysql
service mysqld restart
c.查看开启状态
输入 show variables like ‘log_bin’; 查看binlog开启状态。如下图所示。
输入 show variables like ‘binlog_format’; 查看Binary Log记录方式。如下图所示。
mysql> show variables like 'log_%'; +---------------------------------+-------------+ | Variable_name | Value | +---------------------------------+-------------+ | log_bin | ON | | log_bin_trust_function_creators | OFF | | log_error | .\mysql.err | | log_queries_not_using_indexes | OFF | | log_slave_updates | OFF | | log_slow_queries | ON | | log_warnings | 1 | +---------------------------------+-------------+ 没有开启log_bin的值是OFF,开启之后是ON mysql> SHOW VARIABLES LIKE 'character%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 安装maxwell
下载
从 v1.30.0 开始，Maxwell 不再支持 JDK1.8
使用最后一个支持 JDK1.8 版本的 Maxwell v1.29.2 进行部署
wget https://github.com/zendesk/maxwell/releases/download/v1.29.2/maxwell-1.29.2.tar.gz
安装
解压即可 tar -zxvf maxwell.tar.gz
配置
vim config_1.properties
server_id=1 client_id=city_ct_63 #用于启动多个maxwell replica_server_id=2 #用于启动多个maxwell user=maxwell password=123456 host=192.168.0.XX producer=kafka kafka.bootstrap.servers=192.168.0.XX:9092 kafka_topic=city_mysql_kafka_cdc jdbc_options=serverTimezone=UTC filter=exclude:*.*,include:test.mj_qyxx,include:test.mj_sbxx vim config_2.properties
server_id=1 client_id=province_ct_63 #用于启动多个maxwell replica_server_id=1 #用于启动多个maxwell user=maxwell password=123456 host=192.168.0.1x producer=kafka kafka.bootstrap.servers=192.168.0.xx:9092 kafka_topic=province_mysql_kafka_cdc jdbc_options=serverTimezone=UTC filter=exclude:*.*,include:test2.xxx 启动
bin/maxwell --config city_config.properties --daemon
bin/maxwell --config province_config.properties --daemon
验证启动进程
ps -ef | grep com.zendesk.maxwell.Maxwell | grep -v grep | wc -l
测试数据库全量同步
maxwell-bootstrap --database finance_result --table industry --config $MAXWELL_HOME/config.properties
其中发送过来的数据第一行及最后一行数据是标识 Maxwell 历史数据同步的，不携带任何数据。
maxwell -> kafka: { "database": "finance_result", "table": "industry", "type": "bootstrap-start", "ts": 1694748250, "data": {} } { "database": "finance_result", "table": "industry", "type": "bootstrap-insert", "ts": 1694748250, "data": { "id": 1, "create_time": "2022-08-19 00:00:00.000000", "update_time": "2022-08-19 00:00:00.000000", "industry_level": 1, "industry_name": "工程建设", "superior_industry_id": null } } { "database": "finance_result", "table": "industry", "type": "bootstrap-insert", "ts": 1694748250, "data": { "id": 2, "create_time": "2022-08-19 00:00:00.000000", "update_time": "2022-08-19 00:00:00.000000", "industry_level": 1, "industry_name": "轻工", "superior_industry_id": null } } { "database": "finance_result", "table": "industry", "type": "bootstrap-insert", "ts": 1694748250, "data": { "id": 3, "create_time": "2022-08-19 00:00:00.000000", "update_time": "2022-08-19 00:00:00.000000", "industry_level": 2, "industry_name": "土木", "superior_industry_id": 1 } } ...... { "database": "finance_result", "table": "industry", "type": "bootstrap-complete", "ts": 1694748250, "data": {} } 测试数据库增量同步
参数说明
输出JSON字符串的格式
● data 最新的数据，修改后的数据
● old 旧数据，修改前的数据
● type 操作类型，有insert, update, delete, database-create, database-alter, database-drop, table-create, table-alter, table-drop，bootstrap-insert，int(未知类型)
● xid 事务id
● commit 同一个xid代表同一个事务，事务的最后一条语句会有commit，可以利用这个重现事务
● server_id
● thread_id
● 运行程序时添加参数–output_ddl，可以捕捉到ddl语句
● datetime列会输出为"YYYY-MM-DD hh:mm:ss"，如果遇到"0000-00-00 00:00:00"会原样输出
● maxwell支持多种编码，但仅输出utf8编码
● maxwell的TIMESTAMP总是作为UTC处理，如果要调整为自己的时区，需要在后端逻辑上进行处理
创建mysql同步用户
CREATE USER 'maxwell'@'%' IDENTIFIED BY '123456'; GRANT ALL ON maxwell.* TO 'maxwell'@'%'; GRANT SELECT, REPLICATION CLIENT, REPLICATION SLAVE on *.* to 'maxwell'@'%'; 开启mysql binlog
a.修改 /etc/my.cnf 配置
log-bin=mysql-bin # 开启binlog binlog-format=ROW # 设置Binary Log记录方式为Row server_id=1 # 记住id 后续开发会使用 # 指定binlog日志文件的名字为mysql-bin，以及其存储路径 # 如果没有对log-bin指定log文件，默认在 /var/lib/mysql目录下以mysqld-bin.00000X等作为名称。 # 而 mysqld-bin.index则记录了所有的log的文件名称 # 使用时则使用mysqlbinlog /var/lib/mysql|grep "*****"等来追踪database的操作。 log-bin=/var/lib/mysql/mysql-bin datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock b.重启mysql
service mysqld restart
c.查看开启状态
输入 show variables like ‘log_bin’; 查看binlog开启状态。如下图所示。
输入 show variables like ‘binlog_format’; 查看Binary Log记录方式。如下图所示。
mysql> show variables like 'log_%'; +---------------------------------+-------------+ | Variable_name | Value | +---------------------------------+-------------+ | log_bin | ON | | log_bin_trust_function_creators | OFF | | log_error | .\mysql.err | | log_queries_not_using_indexes | OFF | | log_slave_updates | OFF | | log_slow_queries | ON | | log_warnings | 1 | +---------------------------------+-------------+ 没有开启log_bin的值是OFF,开启之后是ON mysql> SHOW VARIABLES LIKE 'character%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 安装maxwell
下载
从 v1.30.0 开始，Maxwell 不再支持 JDK1.8
使用最后一个支持 JDK1.8 版本的 Maxwell v1.29.2 进行部署
wget https://github.com/zendesk/maxwell/releases/download/v1.29.2/maxwell-1.29.2.tar.gz
安装
解压即可 tar -zxvf maxwell.tar.gz
配置
vim config_1.properties
server_id=1 client_id=city_ct_63 #用于启动多个maxwell replica_server_id=2 #用于启动多个maxwell user=maxwell password=123456 host=192.168.0.XX producer=kafka kafka.bootstrap.servers=192.168.0.XX:9092 kafka_topic=city_mysql_kafka_cdc jdbc_options=serverTimezone=UTC filter=exclude:*.*,include:test.mj_qyxx,include:test.mj_sbxx vim config_2.properties
server_id=1 client_id=province_ct_63 #用于启动多个maxwell replica_server_id=1 #用于启动多个maxwell user=maxwell password=123456 host=192.168.0.1x producer=kafka kafka.bootstrap.servers=192.168.0.xx:9092 kafka_topic=province_mysql_kafka_cdc jdbc_options=serverTimezone=UTC filter=exclude:*.*,include:test2.xxx 启动
bin/maxwell --config city_config.properties --daemon
bin/maxwell --config province_config.properties --daemon
验证启动进程
ps -ef | grep com.zendesk.maxwell.Maxwell | grep -v grep | wc -l
测试数据库全量同步
maxwell-bootstrap --database finance_result --table industry --config $MAXWELL_HOME/config.properties
其中发送过来的数据第一行及最后一行数据是标识 Maxwell 历史数据同步的，不携带任何数据。
maxwell -> kafka: { "database": "finance_result", "table": "industry", "type": "bootstrap-start", "ts": 1694748250, "data": {} } { "database": "finance_result", "table": "industry", "type": "bootstrap-insert", "ts": 1694748250, "data": { "id": 1, "create_time": "2022-08-19 00:00:00.000000", "update_time": "2022-08-19 00:00:00.000000", "industry_level": 1, "industry_name": "工程建设", "superior_industry_id": null } } { "database": "finance_result", "table": "industry", "type": "bootstrap-insert", "ts": 1694748250, "data": { "id": 2, "create_time": "2022-08-19 00:00:00.000000", "update_time": "2022-08-19 00:00:00.000000", "industry_level": 1, "industry_name": "轻工", "superior_industry_id": null } } { "database": "finance_result", "table": "industry", "type": "bootstrap-insert", "ts": 1694748250, "data": { "id": 3, "create_time": "2022-08-19 00:00:00.000000", "update_time": "2022-08-19 00:00:00.000000", "industry_level": 2, "industry_name": "土木", "superior_industry_id": 1 } } ...... { "database": "finance_result", "table": "industry", "type": "bootstrap-complete", "ts": 1694748250, "data": {} } 测试数据库增量同步
参数说明
输出JSON字符串的格式
● data 最新的数据，修改后的数据
● old 旧数据，修改前的数据
● type 操作类型，有insert, update, delete, database-create, database-alter, database-drop, table-create, table-alter, table-drop，bootstrap-insert，int(未知类型)
● xid 事务id
● commit 同一个xid代表同一个事务，事务的最后一条语句会有commit，可以利用这个重现事务
● server_id
● thread_id
● 运行程序时添加参数–output_ddl，可以捕捉到ddl语句
● datetime列会输出为"YYYY-MM-DD hh:mm:ss"，如果遇到"0000-00-00 00:00:00"会原样输出
● maxwell支持多种编码，但仅输出utf8编码
● maxwell的TIMESTAMP总是作为UTC处理，如果要调整为自己的时区，需要在后端逻辑上进行处理