This topic describes the updates of OceanBase Migration Service (OMS) Community Edition in V4.2.4.
Notice
You can upgrade OMS Community Edition to V4.2.4 only from V4.2.3.
New features
Migrates incremental data from OBKV to an HBase database.
Supports reverse incremental migration in a task that migrates data from an HBase database to OBKV.
Supports data migration from an HBase database that uses Kerberos authentication to OBKV.
Supports data merge migration that involves multiple tables when the data write method is set to direct load.
Provides the following two new full verification features:
You can specify to verify only consistent fields.
You can specify fields that are not verified to improve the verification speed. For example, you can specify to exclude LOB type fields from verification.
Supports the migration of views for tables without primary keys between instances of OceanBase Database Community Edition in a schema migration task.
Provides the API for creating primary and standby MySQL data sources.
Usability improvements
If an instance of OceanBase Database Community Edition is used as an intermediate database, you can specify whether to automatically check and filter the data written by OMS Community Edition to the intermediate database.
OMS Community Edition supports cgroup v2.
You can specify to concurrently execute DDL operations in the incremental synchronization phase of an instance of OceanBase Database Community Edition.
You can increase the execution speed of incremental DDL operations by specifying the concurrency.
You can configure database variables during the session phase.
SQL statements can be exported in a schema migration task. You can export the schema information of all objects and save it in your local storage.