mysql 同步到 starrocks

欢迎试用 qin-cdc，重构插件化架构，支持更多数据源。

使用说明

环境准备

1. GO构建版本 v1.19.5（仅用于从源码构建时安装）
2. MySQL 需要开启gtid

1. 创建同步账号

mysql> CREATE USER 'go_mysql_sr'@'%' IDENTIFIED BY 'XXXXXX';
mysql> GRANT ALL ON _go_mysql_sr.* TO 'go_mysql_sr'@'%';
mysql> GRANT SELECT, REPLICATION CLIENT, REPLICATION SLAVE ON *.* TO 'go_mysql_sr'@'%';

2. 修改配置文件

mysql-to-starrocks.toml

# name 必填，多实例运行时需保证全局唯一
name = "mysql2starrocks"

[input]
type = "mysql"
# 指定初次监听开始的gtid点位，当position点位（_go_mysql_sr.positions.name）存在时，此选项不生效
# start-gtid = "3ba13781-44eb-2157-88a5-0dc879ec2221:1-123456"

[input.config.source] # mysql连接信息
host = "127.0.0.1"
port = 3306
username = "go_mysql_sr"
password = ""

# 可选的：
# meta信息（_go_mysql_sr）保存的mysql地址，不配置和source保持一致
# 用于source和meta分离，方便source配置从库数据源
#[input.config.meta]
#host = "127.0.0.1"
#port = 3307
#username = "root"
#password = "root"

[sync-param]
# 同步chan队列最大值，达到会进行flush，最小100
channel-size = 10240
# 同步延迟秒数，达到会进行flush，最小1
flush-delay-second = 10

#[[filter]]
#type = "delete-dml-column" # 过滤列
#[filter.config]
#match-schema = "mysql_test"
#match-table = "tb1"
#columns = ["phone"]

#[[filter]]
#type = "convert-dml-column" # 转换dml行字段类型为json，column varchar（mysql） -> column json（starrocks）
#[filter.config]
#match-schema = "mysql_test"
#match-table = "tb1"
#columns = ["varchar_json_column", "varchar_arrayjson_column"]
#cast-as = ["json", "arrayJson"] # json示例: {"id": 1, "name": 'zhangsan'}, arrayJson示例: [{"id": 1, "name": 'zhangsan'}, {"id": 1, "name": 'lisi'}]

#[[filter]]
#type = "rename-dml-column" # 重命名列
#[filter.config]
#match-schema = "mysql_test"
#match-table = "tb1"
#columns = ["col_1", "col_2"]
#rename-as = ["col_11", "col_22"]

[output]
type = "starrocks" # or doris

[output.config.target] # starrocks连接信息
host = "127.0.0.1"
port = 9030
load-port = 8040 # support fe httpPort:8030 or be httpPort:8040
username = "root"
password = ""

[[output.config.rule]] # 库表同步映射1
source-schema = "mysql_test"
source-table = "tb1"
target-schema = "starrocks_test"
target-table = "tb1"

[[output.config.rule]] # 库表同步映射2
source-schema = "mysql_test"
source-table = "tb2"
target-schema = "starrocks_test"
target-table = "tb2"

3. 查看帮助

[sr@ ~]$ ./go-mysql-sr-linux-xxxxxx -h

4. 启动

[sr@ ~]$ ./go-mysql-sr-linux-xxxxxx -config mysql-to-starrocks.toml -log-file mysql2starrocks.log -level info -daemon

5. 查看日志

[sr@ ~]$ tail -f mysql2starrocks.log

6. 监控

6.1 集成prometheus，开放6166端口，通过metrics暴露指标

[sr@ ~]$ curl localhost:6166/metrics
# 参数说明
# 读取源端延迟（通过event data timestamp与当前时间差值计算获得）
go_mysql_sr_read_delay_time_seconds 0
# 读取源端消息数（累加）
go_mysql_sr_read_processed_ops_total 6930
# go-mysql-sr启动时间，用于计算运行时长
go_mysql_sr_start_time 1.68664498e+09
# 写入目的端延迟（根据写入的event data timestamp与当前时间差值计算获得，3s计算一次）
go_mysql_sr_write_delay_time_seconds 1
# 写入目的端消息数（累加）
go_mysql_sr_write_processed_ops_total 6924

6.2 prometheus配置参考

scrape_configs:
  # 新增go-mysql-sr的job_name
  - job_name: "go-mysql-sr"
    static_configs:
      - targets: ["host.docker.internal:6166", "host.docker.internal:6167"]

6.3 grafana dashboard 监控，json file下载 grafana-goMysqlSr-dashboard.json

7. API

7.1 新增同步表（增量）

# 增量同步
curl localhost:6166/api/addRule -d '{"source-schema": "mysql_test","source-table": "tb3", "target-schema": "starrocks_test", "target-table": "tb3"}'

result: add rule handle successfully.

7.2 新增同步表（全量+增量）

# 需要指定同步参数 full_sync: true
# 当指定full_sync为true时，新增同步表全量数据同步期间会暂停整个同步任务的output write，延迟会增加，等新增同步表全量写入完成后output write恢复；延迟多少跟新增同步表的数据量有关
curl localhost:6166/api/addRule -d '{"source-schema": "mysql_test","source-table": "tb3", "target-schema": "starrocks_test", "target-table": "tb3", "full_sync": true}'

result: add rule handle successfully, full sync rows: 100.

7.3 删除同步表

curl localhost:6166/api/delRule -d '{"source-schema": "mysql_test","source-table": "tb3"}'

result: delete rule handle successfully.

7.4 查询同步表

curl -s localhost:6166/api/getRule | python -m json.tool

result:

{
    "mysql_test:tb1": {
        "source-schema": "mysql_test",
        "source-table": "tb1",
        "target-schema": "starrocks_test",
        "target-table": "tb1",
        "RuleType": "init",
        "Deleted": false
    },
    "mysql_test:tb2": {
        "source-schema": "mysql_test",
        "source-table": "tb2",
        "target-schema": "starrocks_test",
        "target-table": "tb2",
        "RuleType": "init",
        "Deleted": false
    },
    "mysql_test:tb3": {
        "source-schema": "mysql_test",
        "source-table": "tb3",
        "target-schema": "starrocks_test",
        "target-table": "tb3",
        "RuleType": "dynamic add",
        "Deleted": false
    }
}

7.5 暂停同步

curl localhost:6166/api/pause

result: pause handle successfully.

7.6 恢复同步

curl localhost:6166/api/resume

result: resume handle successfully.

注意：通过api修改不会持久化到配置文件。

---

使用docker部署go-mysql-sr

---

同时也支持mongo，详情参考mongo sync配置