Aurora for MySQL to Redshift
BladePipe supports data replication from Aurora for MySQL to Redshift. View supported migration, sync, verification, and connector capabilities.
| Function | Description |
|---|---|
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. |
Data Verification and Correction | Verify all existing data. Optionally, you can correct the inconsistent data based on verification results. Scheduled DataTasks are supported. |
Subscription Modification | Add, delete, or modify the subscribed tables with support for historical data migration. For more information, see Modify Subscription. |
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. |
Advanced Functions
| Function | Description |
|---|---|
Zero-Value Time Handling | Allow setting zero value for time to different data types to prevent errors when writing to the target. |
Custom Code | For more information, see Custom Code Processing, Debug Custom Code and Logging in Custom Code. |
Adding Virtual Columns | Support adding custom virtual columns with fixed values, such as region, ID, etc. |
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. |
Limits
| Limit | Description |
|---|---|
MySQL Storage Engine | Support InnoDB, MyISAM, AWS XEngine. Other storage engines have not been tested yet. |
MySQL Character Set | Support utf8, utf8mb4, latin1. Other encodings have not been tested yet. |
Primary Key Conflict Handling | PostgreSQL <= 9.4 or Greenplum <= 6 does not support conflict skipping or replacement. Performance may be affected when there are a large number of primary key conflicts. |
FAQ
What to do when access to schema in MySQL Source is denied?
Tip: MySQL source-related FAQ also applies to MySQL-based DataSources.
Prerequisites
| Prerequisite | Description |
|---|---|
Permissions for Account | |
Enabling Binlog | [mysqld] |
Parameters
| Parameter | Description |
|---|---|
parseBinlogParallel | Number of threads for parallel parsing of Binlog in Incremental DataJobs. |
parseBinlogBufferSize | Size of the circular buffer for parsing Binlog in Incremental DataJobs. |
maxTransactionSize | Maximum number of data rows per transaction. If exceeded, the transaction will be split and flushed in parts. |
limitThroughputMb | Limit the throughput of incremental Binlogs. |
extraDDL | Support synchronization of additional DDL, including PT, GHOST, ALI_DMS, and PT_GHOST. |
needJsonEscape | Escape special characters in JSON to be written to the target database. |
fullDataSqlConditionEnabled | Add filtering conditions in SQL during source data scanning. It only works in Full Data migration. |
srcTimeZone | Source time zone, e.g., +08:00, Asia/Shanghai, America/New_York, etc. |
Tips: To modify the general parameters, see General Parameters and Functions.
Prerequisites
| Prerequisite | Description |
|---|---|
Permissions for Account | Must have common SELECT, INSERT, DELETE, UPDATE, and DDL permissions. |
Network Preparation | The sidecar node must be able to connect to the standard interactive interface of Redshift (e.g., 5439). |
Parameters
| Parameter | Description |
|---|---|
keyConflictStrategy | Strategy for handling primary key conflicts during incremental writes:
|
dstWholeReplace | Convert INSERT and UPDATE operations into full-row replacement on the target. |
enableTimeZoneProcess | Whether to enable time zone conversion for time fields. |
timezone | Target time zone, e.g., +08:00, Asia/Shanghai, America/New_York. |
defaultZeroDate | Default value for replacing '0000-00-00 00:00:00' / '0000-00-00' values. Optional values include:
|
caseSensitive | Case sensitivity strategy for table names in SQL statements, including:
|
writeStrategy | Target write strategy, including:
|
defaultGisSRID | Set the SRID for GIS data types. |
Tips: To modify the general parameters, see General Parameters and Functions.