Cloud Data Migration
Cloud Data Migration
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" in this service
All results for "
" in this service
What's New
Function Overview
Service Overview
What Is CDM?
Product Advantages
Supported Data Sources
Supported Data Sources (2.9.3.300)
Supported Data Sources (2.9.2.200)
Supported Data Types
Application Scenarios
Basic Concepts
Regions and AZs
CDM Migration Principles
Related Services
Constraints
Billing
Quotas
Permissions Management
Getting Started
Overview
Step 1: Creating a Cluster
Step 2: Creating Links
Step 3: Creating and Executing a Job
Step 4: Viewing Job Execution Result
User Guide
Permissions Management
Creating a User and Granting CDM Permissions
Creating a Custom Policy
Managing Clusters
Creating a CDM Cluster
Binding or Unbinding an EIP
Restarting a Cluster
Deleting a Cluster
Downloading Cluster Logs
Viewing Basic Cluster Information and Modifying Cluster Configurations
Viewing Metrics
CDM Metrics
Configuring Alarm Rules
Querying Metrics
Managing Links
Supported Data Sources
Creating Links
Managing Drivers
Managing Agents
Managing Cluster Configurations
Link to a Common Relational Database
Link to an RDS for MySQL/MySQL Database
Link to an Oracle Database
Link to a Database Shard
Link to DLI
Link to Hive
Link to HBase
Link to HDFS
Link to OBS
Link to an FTP or SFTP Server
Link to Redis/DCS
Link to DDS
Link to CloudTable
Link to MongoDB
Link to Cassandra
Link to Kafka
Link to DMS Kafka
Link to Elasticsearch/CSS
Managing Jobs
Table/File Migration Jobs
Creating an Entire Database Migration Job
Source Job Parameters
From OBS
From HDFS
From HBase/CloudTable
From Hive
From DLI
From FTP/SFTP
From HTTP
From a Common Relational Database
From MySQL
From Oracle
From a Database Shard
From MongoDB/DDS
From Redis
From Kafka/DMS Kafka
From Elasticsearch or CSS
Destination Job Parameters
To OBS
To HDFS
To HBase/CloudTable
To Hive
To a Common Relational Database
To DWS
To DDS
To DCS
To CSS
To DLI
Scheduling Job Execution
Job Configuration Management
Managing a Single Job
Managing Jobs in Batches
Auditing
Key CDM Operations Recorded by CTS
Viewing Traces
Tutorials
Creating an MRS Hive Link
Creating a MySQL Link
Migrating Data from MySQL to MRS Hive
Migrating Data from MySQL to OBS
Migrating Data from MySQL to DWS
Migrating an Entire MySQL Database to RDS
Migrating Data from Oracle to CSS
Migrating Data from Oracle to DWS
Migrating Data from OBS to CSS
Migrating Data from OBS to DLI
Migrating Data from MRS HDFS to OBS
Migrating the Entire Elasticsearch Database to CSS
More Cases and Practices
Advanced Data Migration Guidance
Incremental Migration
Incremental File Migration
Incremental Migration of Relational Databases
HBase/CloudTable Incremental Migration
Using Macro Variables of Date and Time
Migration in Transaction Mode
Encryption and Decryption During File Migration
MD5 Verification
Field Conversion
Migrating Files with Specified Names
Regular Expressions for Separating Semi-structured Text
Recording the Time When Data Is Written to the Database
File Formats
Best Practices
Advanced Data Migration Guidance
Incremental Migration
Incremental File Migration
Incremental Migration of Relational Databases
HBase/CloudTable Incremental Migration
Using Macro Variables of Date and Time
Migration in Transaction Mode
Encryption and Decryption During File Migration
MD5 Verification
Field Conversion
Migrating Files with Specified Names
Regular Expressions for Separating Semi-structured Text
Recording the Time When Data Is Written to the Database
File Formats
Scheduling a CDM Job by Transferring Parameters Using DataArts Factory
Incremental Migration on CDM Supported by DLF
Creating Table Migration Jobs in Batches Using CDM Nodes
Case: Trade Data Statistics and Analysis
Scenario
Analysis Process
Using CDM to Upload Data to OBS
Uploading Inventory Data
Uploading Incremental Data
Analyzing Data
Performance White Paper
Factors Affecting Performance
Performance Tuning
Reference: Job Splitting Dimensions
Reference: CDM Performance Test Data
Security White Paper
CDM Security Overview
CDM Security Conclusion
API Reference
Before You Start
Overview
Endpoints
Project ID and Account ID
Concepts
API Overview
Calling APIs
Making an API Request
Authentication
Response
Application Example
API
Cluster Management
Querying Cluster Details
Deleting a Cluster
Restarting a Cluster
Starting a Cluster
Stopping a Cluster
Creating a Cluster
Querying the Cluster List
Job Management
Querying a Job
Deleting a Job
Modifying a Job
Creating and Executing a Job in a Random Cluster
Stopping a Job
Creating a Job in a Specified Cluster
Starting a Job
Querying Job Status
Querying Job Execution History
Link Management
Creating a Link
Querying a Link
Deleting a Link
Modifying a Link
Public Data Structures
Link Parameter Description
Link to a Relational Database
Link to OBS
Link to OSS on Alibaba Cloud
Link to KODO/COS
Link to HDFS
Link to HBase
Link to CloudTable
Link to Hive
Link to an FTP or SFTP Server
Link to MongoDB
Link to Redis/DCS (to Be Brought Offline)
Link to NAS/SFS (to Be Brought Offline)
Link to Kafka
Link to Elasticsearch/Cloud Search Service
Link to DLI
Link to CloudTable OpenTSDB
Link to Amazon S3
Link to DMS Kafka
Source Job Parameters
From a Relational Database
From Object Storage
From HDFS
From Hive
From HBase/CloudTable
From FTP/SFTP/NAS (to Be Brought Offline)/SFS (to Be Brought Offline)
From HTTP/HTTPS
From MongoDB/DDS
From Redis/DCS (to Be Brought Offline)
From Kafka
From Elasticsearch/Cloud Search Service
From OpenTSDB
Destination Job Parameters
To a Relational Database
To OBS
To HDFS
To Hive
To HBase/CloudTable
To FTP/SFTP/NAS (to Be Brought Offline)/SFS (to Be Brought Offline)
To DDS
To DCS
To Elasticsearch/Cloud Search Service
To DLI
To OpenTSDB
Job Parameter Description
Permissions Policies and Supported Actions
Appendix
Status Code
Error Code
FAQs
General
What Are the Differences Between CDM and Other Data Migration Services?
What Are the Advantages of CDM?
What Are the Security Protection Mechanisms of CDM?
How Do I Reduce the Cost of Using CDM?
Why Am I Billed Pay per Use When I Have Purchased a Yearly/Monthly CDM Incremental Package?
How Do I Check the Remaining Validity Period of a Package?
Will My Data Be Retained If My Package Expires or My Pay-per-Use Resources Are in Arrears?
Can CDM Be Shared by Different Tenants?
Can I Upgrade a CDM Cluster?
How Is the Migration Performance of CDM?
What Is the Number of Concurrent Jobs for Different CDM Cluster Versions?
Functions
Does CDM Support Incremental Data Migration?
Does CDM Support Field Conversion?
What Component Versions Are Recommended for Migrating Hadoop Data Sources?
What Data Formats Are Supported When the Data Source Is Hive?
Can I Synchronize Jobs to Other Clusters?
Can I Create Jobs in Batches?
Can I Schedule Jobs in Batches?
How Do I Back Up CDM Jobs?
How Do I Configure the Connection If Only Some Nodes in the HANA Cluster Can Communicate with the CDM Cluster?
How Do I Use Java to Invoke CDM RESTful APIs to Create Data Migration Jobs?
How Do I Connect the On-Premises Intranet or Third-Party Private Network to CDM?
Does CDM Support Parameters or Variables?
How Do I Set the Number of Concurrent Extractors for a CDM Migration Job?
Does CDM Support Real-Time Migration of Dynamic Data?
Can I Stop CDM Clusters?
How Do I Obtain the Current Time Using an Expression?
Troubleshooting
What Should I Do If the Log Prompts that the Date Format Fails to Be Parsed?
What Can I Do If the Map Field Tab Page Cannot Display All Columns?
How Do I Select Distribution Columns When Using CDM to Migrate Data to DWS?
What Do I Do If the Error Message "value too long for type character varying" Is Displayed When I Migrate Data to DWS?
What Can I Do If Error Message "Unable to execute the SQL statement" Is Displayed When I Import Data from OBS to SQL Server?
What Should I Do If the Cluster List Is Empty, I Have No Access Permission, or My Operation Is Denied?
Why Is Error ORA-01555 Reported During Migration from Oracle to DWS?
What Should I Do If the MongoDB Connection Migration Fails?
What Should I Do If a Hive Migration Job Is Suspended for a Long Period of Time?
What Should I Do If an Error Is Reported Because the Field Type Mapping Does Not Match During Data Migration Using CDM?
What Should I Do If a JDBC Connection Timeout Error Is Reported During MySQL Migration?
What Should I Do If a CDM Migration Job Fails After a Link from Hive to DWS Is Created?
How Do I Use CDM to Export MySQL Data to an SQL File and Upload the File to an OBS Bucket?
What Should I Do If CDM Fails to Migrate Data from OBS to DLI?
What Should I Do If Error Message "Configuration Item [linkConfig.createBackendLinks] Does Not Exist" Is Displayed During Data Link Creation or Error Message "Configuration Item [throttlingConfig.concurrentSubJobs] Does Not Exist" Is Displayed During Job Creation?
What Should I Do If Message "CORE_0031:Connect time out. (Cdm.0523)" Is Displayed During the Creation of an MRS Hive Link?
What Should I Do If Message "CDM Does Not Support Auto Creation of an Empty Table with No Column" Is Displayed When I Enable Auto Table Creation?
What Should I Do If I Cannot Obtain the Schema Name When Creating an Oracle Relational Database Migration Job?