BladePipe 1.9.0: New data pipelines, faster Oracle writes, and improved stability.
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Aurora for PostgreSQL 到 Kafka

选择对端数据库:

数据链路

基本功能

功能说明
Full Data Migration

Migrate data by sequentially scanning data in tables and writing it in batches to the message-oriented middleware.

Incremental Data Sync

Sync of common DML like INSERT, UPDATE, DELETE is supported.

Subscription Modification

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

DDL Sync

PostgreSQL DDL sync is realized by triggers. The user should have the permissions on triggers and tables. For more information, see Permissions Required for PostgreSQL

Metadata Retrieval

Retrieve the target metadata with filtering conditions from the source table.

高级功能

功能说明
消息格式

支持以下消息格式,文档:消息格式说明

  • CloudCanal内置格式
  • AlibabaCanal兼容格式
Topic Mapping Rules

By default, Topic is formed by connecting source instance id, database, and table with . in between (e.g., pg-vgpq6q097174t6t.pg_db.dingtax.app_key). Also, it supports the mapping rules, namely, keeping the name the same as that in Source, converting the text to lowercase, converting the text to uppercase.

Table-level Topic

Create Topics corresponding to the tables in the Source, and the table partitions can be obtained automatically.

Scheduled Full Data Migration

For more information, see Create Scheduled Full Data DataJob.

Custom Code

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

Data Filtering Conditions

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

Setting Target Primary Key

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

使用示例

标题详情
跨互联网数据互通 (Kafka)

文档:跨互联网数据互通 (Kafka)

Kafka 数据中转校验

文档:Kafka 数据中转校验


源端数据源

前置条件

条件说明
账号权限

需要权限如下(以自建数据库为例):

  • GRANT ALL PRIVILEGES ON DATABASE 同步库 TO 同步账号(或同步库 information_schema 中所有视图的 SELECT 权限和需要同步表、索引、约束的 SELECT 权限)
  • ALTER USER 同步账号 REPLICATION
增量同步准备

准备动作按如下步骤进行:

  • 修改 postgresql.conf, 设置 wal_level=logical 和 wal_log_hints = on
  • 修改 pg_hba.conf, 设置 host replication 同步账号 CIDR网段 md5 , host 同步库 同步账号 CIDR网段 md5, host postgres 同步账号 CIDR网段 md5
  • 重启 PostgreSQL
网络准备

迁移同步节点(sidecar)可连接 PostgreSQL 标准交互接口(如 5432)

任务参数

参数名称说明
fullFetchSize

全量扫描数据设置的 fetch size

eventStoreSize

缓存解析完毕的增量事件缓存大小

ignoreGisSRID

解析 GIS 数据类型时是否忽略 SRID

defaultGisSRID

设置 GIS 数据类型的 SRID

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
网络准备

迁移同步节点(sidecar)可连接 Kafka 各节点

任务参数

参数名称说明
schemaFormat

消息格式,文档:消息格式说明

batchWriteSize

单条消息最大数据条数,超过则拆分消息

defaultTopic

无法找到对应 Topic 的消息则发送到此 Topic (如新增表)

ddlTopic

专门发送 DDL 的 Topic, 为空则发送到对应 Topic 的第 0 个分区

compressionType

Kafka compression.type 参数, 设置压缩算法, 支持 GZIP, SNAPPY, LZ4, ZSTD 算法

batchSize

Kafka batch.size 参数

acks

Kafka acks 参数, 默认 all

maxRequestBytes

Kafka max.request.size 参数

lingerMs

Kafka linger.ms 参数, 默认 1

envelopSchemaInclude

当 schemaFormat 设置为 DEBEZIUM_ENVELOP_JSON_FOR_MQ 时,消息体是否包含 schema 信息

customClientProps

自定义传入到 Kafka Client 参数,JSON 格式,key为参数名,value为参数值。此配置项以最高优先级生效。例如:AWS IAM 访问控制

Tips: 通用参数配置请参考 通用参数及功能