BladePipe 1.9.0: New data pipelines, faster Oracle writes, and improved stability.
跳到主要内容

MariaDB 到 MongoDB

选择对端数据库：
MongoDB

数据链路

基本功能

功能说明
Schema Migration

If the target database or dataset does not exist, BladePipe will automatically generate and execute CREATE statements based on the source metadata.

Full Data Migration

Migrate data by sequentially scanning data in tables and writing it in batches to the target database.

Incremental Data Sync

Sync of common DML like INSERT, UPDATE, DELETE is supported.
UPDATE and DELETE for tables without primary keys are not synced by default (manual selection required).

Data Verification and Correction

Verify all existing data. Optionally, you can correct the inconsistent data based on verification results. Scheduled DataTasks are supported.
For more information, see Create Verification and Correction DataJob.

Subscription Modification

Add, delete, or modify the subscribed tables with support for historical data migration. For more information, see Modify Subscription.

Position Resetting

Reset positions by file position or timestamp. Allow re-consumption of incremental data logs in a past period or since a specific Binlog file and position.

高级功能

功能说明
Custom Code

For more information, see Custom Code Processing, Debug Custom Code and Logging in Custom Code.

Setting Target Primary Key

Change the primary key to another field to facilitate data aggregation and other operations.

Data Filtering Conditions

Support data filtering using WHERE conditions, with SQL-92 as the SQL language. For more information, see Data Filtering.

限制和注意点

限制项说明
MySQL 存储引擎

支持 InnoDB, MySIAM, 阿里云 XEngine, 其他存储引擎暂未测试

MySQL 字符集

支持 utf8, utf8mb4, latin1, 其他编码暂未测试

链路FAQ

源端数据源

前置条件

条件说明
账号权限

文档：MySQL / MariaDB 需要的权限

开启 Binlog

[mysqld]
log-bin=mysql-bin # 开启 Binlog
binlog-format=ROW # 选择 ROW 模式
binlog_row_image=FULL # 变更带所有列数据

任务参数

参数名称说明
parseBinlogParallel

增量解析 Binlog 的并发数

parseBinlogBufferSize

用于增量解析 Binlog 的环形队列大小

maxTransactionSize

单事务最大数据条数，超过则分段刷出

limitThroughputMb

限制增量 Binlog 流量

extraDDL

兼容额外的 DDL 同步，包括 PT, GHOST, ALI_DMS, PT_GHOST

fullDataSqlConditionEnabled

将过滤条件拼入 SQL 中进行源端数据扫描，此参数只针对全量迁移有效

srcTimeZone

源端时区，例如 +08:00, Asia/Shanghai, America/New_York 等

Tips: 通用参数配置请参考 通用参数及功能

目标端数据源

前置条件

条件说明
账号权限

文档：MongoDB 需要的权限

网络准备

迁移同步节点（sidecar）可连接 MongoDB/DocumentDB 节点

任务参数

参数名称说明
totalDataInMemMb

攒批写入，内存中最大数据容量，超过此容量或超过 asyncFlushIntervalSec 则刷出数据到写入队列

asyncFlushIntervalSec

攒批写入，等待刷出的间隔时间，超过此时间或超过 totalDataInMemMb 则刷出数据到写入队列

flushBatchMb

单表最大攒批容量，超过此容量则刷出数据到写入队列

realFlushPauseSec

刷出数据到 MongoDB 的等待时间，0 则不等待

enableTimeZoneProcess

是否对时间字段进行时区转换

timezone

需要转换的目标时区（默认 UTC）

enableBatchApply

启用批量写入模式 （默认关闭）

Tips: 通用参数配置请参考 通用参数及功能