Migration Preparation
Prerequisites
- The CDH HBase version is earlier than or equal to the MRS HBase version.
- You cannot perform the write, split, and merge operations on the tables to be migrated.
- Use Direct Connect to establish a Direct Connect connection between the CDH cluster and HUAWEI CLOUD Virtual Private Cloud (VPC).
Migration Process
- Estimate the amount of data to be migrated and the migration duration.
- Output the detailed data tables, the number and sizes of files to be migrated for subsequent verification.
- Configure migration tasks in batches to ensure the migration progress and speed.
- Check the number and sizes of files.
- Restore the HBase table on MRS and verify the restoration.
Required Information
| Item | Information | Description | Example Value |
|---|---|---|---|
| DES Teleport | Mount address | Address to which the DES Teleport box is mounted on the customer's VM | //IP address of the VM/huawei |
| DeviceManager | Storage management system of the DES Teleport box, which is related to the management IP address | https://Management IP address:8088/deviceManager/devicemanager/login/login.html | |
| Username | Username for logging in to DeviceManager | admin | |
| Password | Password for logging in to DeviceManager | - | |
| CDH cluster | NameNode IP | IP address of the active NameNode in the CDH cluster | 192.168.2.3 |
| HDFS port | The default port number is 9000. | 9000 | |
| HDFS URI | NameNode URI of HDFS in the CDH cluster | hdfs://192.168.2.3:9000 | |
| OBS | OBS endpoint | Endpoint of OBS | obs.cn-north-1.myhwclouds.com |
| OBS bucket | OBS bucket that stores historical data one month ago of the CDH cluster | cdm | |
| AK/SK | AK and SK for accessing OBS | - | |
| MRS | Manager IP | IP address of MRS Manager | 192.168.3.11 |
Last Article: Scenario Overview
Next Article: Using CDM to Migrate Data of the Last Month
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