Oracle
| 功能 | 说明 |
|---|---|
结构迁移 | 如目标不存在所选表，则自动根据源端元数据，结合映射生成对端创建语句并执行创建 |
全量数据迁移 | 逻辑迁移，通过顺序扫描表数据，将数据分批写入到对端数据库 |
增量实时同步 | 支持 INSERT, UPDATE, DELETE 常见 DML 同步 |
数据校验和订正 | 全量数据校验，并可选根据校验结果订正差异数据，支持定时，文档：创建定时校验订正任务 |
修改订阅 | 新增、删除、修改订阅表，支持历史数据迁移，文档：修改订阅 |
重置位点 | 支持按照文件位点、时间戳 回溯位点，重新消费过去一段时间或指定 Binlog 文件和位点开始的增量日志 |
表名映射 | 支持 和源端保持一致, 转小写, 转大写, 以'_数字'后缀截取 |
元数据检索 | 从源端表查对端，查询设置过过滤条件的 |
高级功能
| 功能 | 说明 |
|---|---|
Automatic Dictionary Creation | When using offline dictionaries to parse Oracle Redo files, the dictionary is automatically created during DataJob creation. |
Removal of Target Data before Full Data Migration | Remove the existing data in the Target before running the Full Data Migration, applicable for DataJobs reruning and scheduled Full Data migrations. |
Recreating Target Table | Recreate target tables before running the Full Data Migration, applicable for DataJobs reruning and scheduled Full Data migrations. |
Incremental Data Write Conflict Resolution Rule | IGNORE: Ignore primary key conflicts (skip writing), REPLACE: Replace the entire row in case of primary key conflicts. |
Handling of Zero Value for Time | Allow setting zero value for time to different data types to prevent errors when writing to the Target. |
定时全量迁移 | 文档1：创建定时全量任务 |
全量前清空目标数据 | 运行全量任务前清除老数据，包括重跑任务、定时全量迁移都会触发此能力 |
重建目标表 | 运行全量任务前重建目标表，包括重跑任务、定时全量迁移都会触发此能力 |
自定义代码 | 文档1：创建自定义代码任务 |
添加虚拟列 | 支持添加自定义的虚拟列，指定的值为固定值，如区域、编号等 |
设置目标主键 | 变更主键为其他字段，方便数据聚合等操作 |
数据过滤条件 | 支持 WHERE 条件进行数据过滤，内容为 SQL 92 子集，文档：创建数据过滤任务 |
限制和注意点
| 限制项 | 说明 |
|---|---|
Incremental Data Sync Performance | Due to LogMiner performance limits and BladePipe's lack of parallel analysis, the performance benchmark is set at 3000 records per second. |
Data Types | Do not support BLOB and derived types. |
前置条件
| 条件 | 说明 |
|---|---|
Permissions for Account | |
Incremental Data Sync Preparation | |
Port Preparation | Allow the migration and sync node (Worker) to connect to the Oracle port (e.g., 1521). |
任务参数
| 参数名称 | 说明 |
|---|---|
fullFetchSize | Fetch size for scaning full data. |
eventStoreSize | Cache size for parsed incremental events. |
logminerUser | User name for connection to Oracle to execute LogMiner SQL. |
logminerPasswd | Password for connection to Oracle to execute LogMiner SQL. |
logminerConnectType | Way to connect to Oracle (PDB) to execute LogMiner SQL, including ORACLE_SID and ORACLE_SERVICE options. |
logminerSidOrService | SID or service name for connection to Oracle (PDB) to execute LogMiner SQL. |
parseRedoSqlParallel | Number of threads for parallel parsing of LogMiner data. |
parseRedoSqlBufferSize | Size of the circular buffer for parsing LogMiner data. |
redoFetchSize | Number of rows of LogMiner analyzed data to fetch each time. |
redoOfferTransMaxSize | Maximum number of unconsumed but committed transactions in cache. |
oraMiningSessionPauseSec | Interval between LogMiner sessions, in seconds. |
maxEventCountPerTxInMem | Maximum number of events per transaction in memory. |
logMiningScnStep | Analysis range specified when Oracle LogMiner analyzes redo logs. |
abandonUnCommitTxTimeoutSec | Automatically abandon transactions that have not been committed for longer than the specified timeout. |
restartTxWithDataTimeoutSec | Automatically restart DataJobs for transactions with data changes that have not been committed for longer than the specified timeout. |
oraUseOnlineDic | Whether to use online logs; false means using offline logs, which may put more stress on Oracle. |
oraReleaseIntervalSec | Interval for recreating connection for analysis to release Oracle server resources. |
oraMiningSessionPauseSec | Interval between execution of LogMiner commands for analysis. |
fallBackScnStep | Distance to keep from the latest Redo log data; 0 means to keep right behind the latest Redo log data. |
sqlCaseConversionEnabled | Whether to enable DDL case conversion (according to the default case rules of the current database). |
Tips: 通用参数配置请参考 通用参数及功能
前置条件
| 条件 | 说明 |
|---|---|
Permissions for Account | |
Port Preparation | Allow the migration and sync node (Worker) to connect to the Oracle port (e.g., 1521). |
任务 参数
| 参数名称 | 说明 |
|---|---|
keyConflictStrategy | Strategy for handling primary key conflicts during write in Incremental DataTask:
|
dstWholeReplace | Convert INSERT and UPDATE operations into full row replacement in the Target. |
writeStrategy | Strategy of writing data to the Target, including:
|
Tips: 通用参数配置请参考 通用参数及功能