DM部署方式有DM-Ansible、Binary和TIUP方式，TIUP为最新的部署方式，更加便捷。
以下步骤为使用DM-Ansible方式部署过程。
1. 安装依赖包
▼▼▼yum -y install epel-release git curl sshpasswget https://bootstrap.pypa.io/pip/2.7/get-pip.pypython get-pip.pywget https://download.pingcap.org/dm-ansible-v2.0.0.tar.gz[tidb@luyy01 ~]$ tar -zxvf dm-ansible-v2.0.0.tar.gz[tidb@luyy01 ~]$ mv dm-ansible-v2.0.0 dm-ansible[tidb@luyy01 ~]$sudo pip install -r ./requirements.txt
2. 在中控机上配置 SSH 互信和 sudo 规则
▼▼▼cd /home/tidb/dm-ansiblevi hosts.ini[servers]192.168.199.62192.168.199.63192.168.199.64[all:vars]username = tidb[tidb@luyy01 dm-ansible]$ ansible-playbook -i hosts.ini create_users.yml -u root -kSSH password:
3. 下载 DM 及监控组件安装包至中控机
4. 编辑 inventory.ini 配置文件
▼▼▼## DM modules[dm_master_servers]dm_master ansible_host=192.168.199.61 dm_master_port=18261[dm_worker_servers]dm-worker1 ansible_host=192.168.199.62 dm_worker_port=18262 source_id="mysql-replica-01" mysql_host=192.168.199.61 mysql_user=admin mysql_password='YUZP1pa88fWbIzudw3bDTEBF6ZUTnw==' mysql_port=3306[dm_portal_servers]dm_portal ansible_host=192.168.199.61## Monitoring modules[prometheus_servers]prometheus ansible_host=192.168.199.63[grafana_servers]grafana ansible_host=192.168.199.63[alertmanager_servers]alertmanager ansible_host=192.168.199.63## Global variables[all:vars]cluster_name = test-clusteransible_user = tidbdm_version = v2.0.0deploy_dir = home/tidb/deploygrafana_admin_user = "admin"grafana_admin_password = "admin"
5. 使用 dmctl 加密上游 MySQL 用户密码
▼▼▼cd /home/tidb/dm-ansible/resources/bin &&./dmctl -encrypt 'abc!@#123
6.修改内核参数并部署 DM 集群组件和监控组件
7. 启动DM集群
实例 | 主机 | 用户名 | 密码 | 端口 |
上游 MySQL | 192.***.***.** | admin | admin | 3306 |
下游 TiDB | 192.***.***.** | root | 4000 |
1. dm-master 进程配置
▼▼▼cd /home/tidb/deploy/confvi dm-master.tomlenable-gtid = false[[deploy]]source-id = "mysql-replica-01"dm-worker = "192.168.199.62:18262"
2. 配置任务
登录网页http://192.***.***.**:8280/
可手动创建task文件
▼▼▼name: luyayaotask-mode: allis-sharding: falseclean-dump-file: trueignore-checking-items: [schema_of_shard_tables]target-database: host: 192.168.199.63 port: 4000 user: root password: KyMi25sGljNJPVL8OV3JrEA=mysql-instances:- source-id: mysql-replica-01 meta: binlog-name: mysql-bin.0000001 binlog-pos: 4 filter-rules: [] route-rules: - mysql-replica-01.route_rules.1 - mysql-replica-01.route_rules.2 black-white-list: mysql-replica-01.bw_list.1 mydumper-config-name: mysql-replica-01.dumproutes: mysql-replica-01.route_rules.1: schema-pattern: employees table-pattern: "" target-schema: employees target-table: "" mysql-replica-01.route_rules.2: schema-pattern: employees table-pattern: "*" target-schema: employeesfilters: {}black-white-list: mysql-replica-01.bw_list.1: do-tables: - db-name: employees tbl-name: "*" do-dbs: [] ignore-tables: [] ignore-dbs: []mydumpers: mysql-replica-01.dump: mydumper-path: bin/mydumper threads: 4 chunk-filesize: 64 skip-tz-utc: true extra-args: "--no-locks"
3. 进入交互窗口
▼▼▼./dmctl -master-addr 192.168.199.61:18261operate-source create home/tidb/deploy/conf/dm-master.yaml
▼▼▼cat dm-master.yamlserver-id: 101source-id: mysql-replica-01flavor: mysqlenable-relay: falseenable-gtid: falsefrom: host: 192.168.199.61 user: admin password: YUZP1pa88fWbIzudw3bDTEBF6ZUTnw== port: 3306
4. 开始任务
▼▼▼start-task -s mysql-replica-01 /home/tidb/deploy/conf/luyayao.yaml» query-status #查询任务运行状态
5. 日志查看
ps -ef|grep dm 可查看进程中dm-master 和 dm-work中的日志
通过查看日志和登录TIDB数据库发现数据已从DM完整迁移了过来。
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