When you migrate data from conventional databases to OceanBase Database, you can export the data to CSV files or SQL files, and then import these files to OceanBase Database. You can also use OceanBase services such as DataX or OceanBase Migration Service (OMS) to perform offline or online data migration between conventional databases and OceanBase Database. Notice
If a massive amount of data needs to be migrated and the migration speed is high, the memstore consumption in OceanBase Database may be faster than the speed of memory release resulted from minor compactions and major compactions. To solve this problem, you must modify the parameters for data migration, limit the memory write rate, or scale up the instance memory.