Aurora for PostgreSQL 到 Iceberg

选择对端数据库：

Iceberg

数据链路

基本功能

功能	说明
Schema Migration	If the target schema does not exist, BladePipe will automatically generate and execute CREATE statements based on the source metadata and the mapping rule.
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.
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.
Table Name Mapping	Support the mapping rules, namely, keeping the name the same as that in Source, converting the text to lowercase, converting the text to uppercase, truncating the name by "_digit" suffix.
DDL Sync	ALTER TABLE ADD COLUMN, DROP COLUMN, MODIFY COLUMN, CHANGE COLUMN
Metadata Retrieval	Retrieve the target metadata with filtering conditions or target primary keys set from the source table.

高级功能

功能	说明
写入冲突策略	源端有主键表进行覆盖写入，源端无主键表进行追加写入
自定义表属性	包括 format-version 等属性设置
设置数据分区	创建任务时，可按表粒度指定分区定义（静态或动态），结构迁移时自动添加该分区定义
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.

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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

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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 Catalog 和 文件存储
Nessie 数据源配置模版	网络地址（CatalogUri）: ip:19120/api/v1 catalogName: nessie catalogType: NESSIE catalogWarehouse: s3://warehouse catalogProps: { "io-impl": "org.apache.iceberg.aws.s3.S3FileIO", "s3.endpoint": "http://ip:9000", "s3.access-key-id": "admin", "s3.secret-access-key": "password", "s3.path-style-access": "true", "client.region": "ap-southeast-1" }
Glue 数据源配置模版	网络地址（CatalogUri）: glue.ap-southeast-1.amazonaws.com httpsEnabled: true catalogName: glue_catalog catalogType: GLUE catalogWarehouse : s3://warehouse catalogProps: { "io-impl": "org.apache.iceberg.aws.s3.S3FileIO", "s3.endpoint": "https://s3.ap-southeast-1.amazonaws.com", "s3.access-key-id": "", "s3.secret-access-key": "", "s3.path-style-access": "true", "client.region": "ap-southeast-1", "client.credentials-provider.glue.access-key-id": "", "client.credentials-provider.glue.secret-access-key": "", "client.credentials-provider": "com.amazonaws.glue.catalog.credentials.GlueAwsCredentialsProvider" }
REST 数据源配置模版	网络地址（CatalogUri）: ip :8181 httpsEnabled: false catalogName: rest_catalog catalogType: REST catalogWarehouse : s3://warehouse catalogProps: { "io-impl": "org.apache.iceberg.aws.s3.S3FileIO", "s3.endpoint": "http://ip:9000", "s3.access-key-id": "admin", "s3.secret-access-key": "password", "s3.path-style-access": "true", "client.region": "us-east-1" }

任务参数

参数名称	说明
fileFormat	写入文件格式（parquet / orc / ... ）
writeTargetFileSizeMb	写入目标文件大小（MB）
writeProps	写入配置参数（Json 格式）
commitBranch	写入提交的分支
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 Iceberg 的等待时间，0 则不等待

Tips: 通用参数配置请参考 通用参数及功能