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Distributed Database Middleware
Distributed Database Middleware
- What's New
- Service Overview
- Getting Started
-
User Guide
- Function Overview
- Permissions Management
-
Instance Management
- Buying a DDM Instance
- Splitting Read-only and Read-Write Services
- Changing Class of a DDM Node
- Scaling Out a DDM Instance
- Scaling In a DDM Instance
- Changing Billing Mode of a DDM Instance
- Renewing a DDM Instance
- Restarting a DDM Instance
- Unsubscribing from a DDM Instance
- Deleting a DDM Instance
- Modifying Parameters of a DDM Instance
- Splitting Read and Write Requests
- Configuring a Parameter Template
- Connection Management
-
Parameter Template Management
- Creating a Parameter Template
- Editing a Parameter Template
- Comparing Two Parameter Templates
- Viewing Parameter Change History
- Replicating a Parameter Template
- Applying a Parameter Template
- Viewing Application Records of a Parameter Template
- Modifying the Description of a Parameter Template
- Deleting a Parameter Template
- Task Center
- Schema Management
- Shard Configuration
- Data Node Management
- Account Management
- Backups and Restorations
-
Data Migration
- Overview
- Migration Evaluation
- Scenario 1: Migrating Data from Huawei Cloud RDS to DDM
- Scenario 2: Migrating Data from an On-Premises RDS Instance for MySQL to DDM
- Scenario 3: Migrating Data from a Third-Party RDS for MySQL Instance to DDM
- Scenario 4: Migrating Data from a Self-Built MySQL Instance to DDM
- Scenario 5: Migrating Data from Heterogeneous Databases to DDM
- Scenario 6: Exporting Data from a DDM Instance
- Slow Queries
- Monitoring Management
- Auditing
-
SQL Syntax
- Introduction
- DDL
- DML
- Functions
- Use Constraints
- Supported SQL Statements
- Global Sequence
- Database Management Syntax
- Advanced SQL Functions
- Quotas
- Change History
-
API Reference
- Before You Start
- API Overview
- Calling APIs
-
APIs (Recommended)
-
DDM Instances
- Buying a DDM instance
- Querying DDM Instances
- Querying Details of a DDM Instance
- Modifying the Name of a DDM Instance
- Modifying the Security Group of a DDM Instance
- Deleting a DDM Instance
- Restarting a DDM Instance
- Reloading Table Data
- Scaling out a DDM instance
- Scaling in a DDM instance
- Modifying the Read Policy of the Associated DB Instance
- Synchronizing Data Node Information
- Querying Nodes of a DDM Instance
- Querying Details of a DDM Instance Node
- Querying Parameters of a Specified DDM Instance
- Modifying Parameters of a DDM Instance
- Querying DDM Engine Information
- Querying DDM Node Classes Available in an AZ
- Changing the Node Class of a DDM Instance
- Schemas
- DDM Accounts
- Monitoring
-
DDM Instances
- APIs (Unavailable Soon)
- Appendix
- Change History
- SDK Reference
-
Best Practices
- Overview
- Formulating Sharding Rules
- Determining the Number of Shards in a Schema
- Using Broadcast and Unsharded Tables
- Transaction Models
- SQL Standards
- Migrating an Entire RDS Database to DDM
- Migrating an Entire MyCat Database to DDM
- Accessing DDM Using a JDBC Connection Pool
- Logging In to a DDM Instance Using Navicat
- Migrating Data from RDS for MySQL to DDM Using DRS
- Performance White Paper
-
FAQs
- General Questions
-
DDM Usage
- How Does DDM Perform Sharding?
- What Do I Do If I Fail to Connect to a DDM Instance Using the JDBC Driver?
- What Version and Parameters Should I Select?
- Why It Takes So Long Time to Export Data from MySQL Using mysqldump?
- What Do I Do If a Duplicate Primary Key Error Occurs When Data Is Imported into DDM?
- What Should I Do If an Error Message Is Returned When I Specify an Auto-Increment Primary Key During Migration?
- What Do I Do If an Error Is Reported When Parameter Configuration Does Not Time Out?
- Which Should I Delete First, a Schema or its Associated RDS Instances?
- Can I Manually Delete Databases and Accounts Remained in Data Nodes After a Schema Is Deleted?
- SQL Syntax
- RDS-related Questions
- Connection Management
- Resource Freezing, Release, Deletion, and Unsubscription
- Change History
- Videos
On this page
Help Center/
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APIs (Recommended)/
DDM Instances/
Synchronizing Data Node Information
Synchronizing Data Node Information
Updated on 2022-09-15 GMT+08:00
Function
This API is used to synchronize configuration information of all data nodes that are associated with a DDM instance.
Constraints
None
URI
POST /v1/{project_id}/instances/{instance_id}/rds/sync
|
Parameter |
Mandatory |
Type |
Description |
|---|---|---|---|
|
project_id |
Yes |
String |
Project ID of a tenant in a region |
|
instance_id |
Yes |
String |
DDM instance ID |
Request Parameters
|
Parameter |
Mandatory |
Type |
Description |
|---|---|---|---|
|
X-Auth-Token |
Yes |
String |
User token It can be obtained by calling an IAM API. The value of X-Subject-Token in the response header is the user token. |
Response Parameters
Status code: 200
|
Parameter |
Type |
Description |
|---|---|---|
|
instanceId |
String |
DDM instance ID |
|
jobId |
String |
Task ID |
Status code: 400
|
Parameter |
Type |
Description |
|---|---|---|
|
errCode |
String |
Service error code |
|
externalMessage |
String |
Error message |
Status code: 500
|
Parameter |
Type |
Description |
|---|---|---|
|
errCode |
String |
Service error code |
|
externalMessage |
String |
Error message |
Example Request
POST https://{endpoint}/v1/{project_id}/instances/{instance_id}/rds/sync
NoneExample Response
Status code: 200
OK
{
"instanceId" : "1f5c9fd6cd984056ba89c8c87cc03278in09",
"jobId" : "6f1334ca-faa6-479e-837f-f3219192675e"
}Status code: 400
bad request
{
"externalMessage" : "Parameter error.",
"errCode" : "DBS.280001"
}Status code: 500
server error
{
"externalMessage" : "Server failure.",
"errCode" : "DBS.200412"
}Status Codes
|
Status Code |
Description |
|---|---|
|
200 |
OK |
|
400 |
bad request |
|
500 |
server error |
Error Codes
For details, see Error Codes.
Parent topic: DDM Instances
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