- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Practical Tutorial
- Security White Paper
- Development Guide
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Security Group APIs
- Other APIs
- Account APIs
- Parameter Management APIs
- Monitoring Management APIs
- Instance Management APIs
- CancelDcnJob
- CloseDBExtranetAccess
- CreateDBInstance
- CreateHourDBInstance
- DescribeDBInstanceDetail
- DescribeDBInstances
- DescribeDcnDetail
- DescribeInstanceNodeInfo
- DescribeOrders
- DescribePrice
- DestroyDBInstance
- DestroyHourDBInstance
- IsolateDBInstance
- IsolateDedicatedDBInstance
- ModifyDBInstancesProject
- ModifyInstanceNetwork
- ModifyInstanceVip
- ModifyInstanceVport
- TerminateDedicatedDBInstance
- UpgradeDedicatedDBInstance
- ModifyBackupTime
- OpenDBExtranetAccess
- DescribeFlow
- DescribeBackupTime
- InitDBInstances
- ModifyDBInstanceName
- SwitchDBInstanceHA
- IsolateHourDBInstance
- ActivateHourDBInstance
- Backup and Restoration APIs
- Data Types
- Error Codes
- FAQs
- General References
- Glossary
- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Practical Tutorial
- Security White Paper
- Development Guide
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Security Group APIs
- Other APIs
- Account APIs
- Parameter Management APIs
- Monitoring Management APIs
- Instance Management APIs
- CancelDcnJob
- CloseDBExtranetAccess
- CreateDBInstance
- CreateHourDBInstance
- DescribeDBInstanceDetail
- DescribeDBInstances
- DescribeDcnDetail
- DescribeInstanceNodeInfo
- DescribeOrders
- DescribePrice
- DestroyDBInstance
- DestroyHourDBInstance
- IsolateDBInstance
- IsolateDedicatedDBInstance
- ModifyDBInstancesProject
- ModifyInstanceNetwork
- ModifyInstanceVip
- ModifyInstanceVport
- TerminateDedicatedDBInstance
- UpgradeDedicatedDBInstance
- ModifyBackupTime
- OpenDBExtranetAccess
- DescribeFlow
- DescribeBackupTime
- InitDBInstances
- ModifyDBInstanceName
- SwitchDBInstanceHA
- IsolateHourDBInstance
- ActivateHourDBInstance
- Backup and Restoration APIs
- Data Types
- Error Codes
- FAQs
- General References
- Glossary
The connectivity test feature is mainly used to check the connectivity between the sync tool and target database. Below are the two main check items:
Telnet: whether the network can be properly connected.
MySQL Connect: whether the database can be properly connected.
Test failures
Telnet test failure
Possible causes: incorrectly entered target instance IP, traffic blocked by firewall, or incorrect iptable configuration.
Solution: please check the IP and configure the firewall to allow it.
MySQL Connect test failure
Possible causes: special configuration on the target instance; for example, SSL connection is enabled, the account is configured with HOST, or the
bind_address configuration is listened on.
Solution: please check the IP and configure the firewall to allow it.
Yes
No
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