MySQL to DynamoDB
BladePipe supports data replication from MySQL to DynamoDB. View supported migration, sync, verification, and connector capabilities.
| Function | Description |
|---|---|
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. |
Advanced Functions
| Function | Description |
|---|---|
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. |
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. |
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 |
|---|---|
Accounts and Permissions | Documentation: Permissions Required for DynamoDB |
Network Preparation | The sidecar node must be able to connect to the standard interactive interface of DynamoDB. |
Parameters
| Parameter | Description |
|---|---|
writeParallel | Number of parallel writes to the target, which significantly affects migration or synchronization performance. |
totalDataInMemMb | Batch write. Maximum data capacity in memory. Data will be flushed to the write queue if this capacity is exceeded or if the asyncFlushIntervalSec is reached. |
asyncFlushIntervalSec | Batch write. Interval time for waiting to flush. Data will be flushed to the write queue if this time is exceeded or if the totalDataInMemMb is reached. |
flushBatchMb | Maximum batch capacity per table. Data will be flushed to the write queue if this capacity is exceeded. |
realFlushPauseSec | Waiting time for flushing data to DynamoDB. 0 means no waiting. |
retryCount | Number of retries on write errors. |
retryWaitTimeMs | Wait time for retrying on write errors (milliseconds). |
maxBatchSize | Upper limit for the number of records per single write. |
Tips: To modify the general parameters, see General Parameters and Functions.