Help Center> Cloud Data Migration> What's New

What's New

Updated on 2024/06/06 GMT+08:00

The tables below describe the functions released in each Cloud Data Migration version and corresponding documentation updates. New features will be successively launched in each region.

June, 2024

No.

Feature

Description

Phase

Related Documents

1

Managing Agents

Managing Agents became unavailable.

Commercial use

Managing Links

December, 2022

No.

Feature

Description

Phase

Related Documents

1

MRS ClickHouse as the data source

You can migrate tables or files from MRS ClickHouse.

Commercial use

Table/File Migration Jobs

Supported Data Sources

2

MRS Hudi as the data source

You can migrate tables or files from MRS Hudi.

Commercial use

Supported Data Sources

Table/File Migration Jobs

3

Enabling display of column names during CSV file migration

When migrating a CSV file from OBS, you can enable the display of column names.

Commercial use

From OBS

4

Using the first row as the header row during CSV file migration

When migrating a CSV file from OBS, you can use the first row as the header row.

Commercial use

From OBS

August, 2022

No.

Feature

Description

Phase

Related Documents

1

Cluster management

CDM is interconnected with Tag Management Service (TMS). You can filter CDM clusters by tag.

Commercial use

Managing Cluster Tags

April, 2022

No.

Feature

Description

Phase

Related Documents

1

Stopping Clusters

Clusters cannot be stopped. (When a cluster is stopped, its resources may be occupied, and the cluster may become unavailable.)

Commercial use

Managing Clusters

2

Table/File migration

The source and destination of table/file migration are adjusted for data import to the lake and data migration to the cloud.

Commercial use

Supported Data Sources

September, 2021

No.

Feature

Description

Phase

Related Documents

1

Scenario migration

Scenario migration became unavailable.

Commercial use

Related content was removed from the documentation.

July, 2021

No.

Feature

Description

Phase

Related Documents

1

Data connection
  • Incremental data of Oracle, SQL Server, and MySQL databases can be extracted in batches by ID.
  • Data sources not supported were removed from the official website.
  • The repair API of Hive was optimized.

Commercial use

Supported Data Sources

May, 2021

No.

Feature

Description

Phase

Related Documents

1

Supported data sources

CDM supports the import and export of some data sources.

Commercial use

Supported Data Sources

October, 2020

No.

Feature

Description

Phase

Related Documents

1

Driver upload

The Java Database Connectivity (JDBC) API provides programmatic access to relational databases. Using the JDBC API, applications can execute SQL statements and retrieve results. Before connecting CDM to a relational database, you need to upload a driver.

Commercial use

Managing Drivers

May, 2020

No.

Feature

Description

Phase

Related Documents

1

Scenario migration

Scenario migration migrates snapshots and then restores table data to speed up migration.

Commercial use

Scenario Migration

2

cdm.4xlarge available

You can create a CDM cluster with a flavor of cdm.4xlarge.

Commercial use

Creating a CDM Cluster

3

Entire DB migration

You can migrate an entire database from Hive to DWS.

Commercial use

Entire DB Migration

March, 2020

No.

Feature

Description

Phase

Related Documents

1

Performance tuning
  • CDM supports file header writing for HDFS (CSV).
  • When a large number of tasks are submitted, CDM supports the queue function to ensure the Direct Connect usage.
  • CDM protects against memory overload.
  • CDM improves database performance.

Commercial use

None

2

File migration
  • You can migrate files from OBS to HDFS.

Commercial use

Table/File Migration Jobs