Scenario | Possible Causes | Processing |
The password is incorrect. | ||
| The CVM and MySQL instances are in the same region but belong to different VPC networks. | |
| The CVM and MySQL instances are in different regions and belong to separate VPC networks. | |
| The configuration for CVM security group is incorrect. | |
| The configuration of MySQL security group is incorrect. | |
| The database account has restricted the access to specific host addresses. | |
| The connection command is incorrect. | |
| The IP and port in the command line or configuration file are incorrect. | |
| The MySQL instance's disk is full; maximum connections have been reached; the timeout parameter setting is incorrect; a master/slave switch is undergoing, or other possible issues. | |
| - | |
| The CVM instance is in isolation or shut down. It can be restored or powered on through the Console. | - |
The password is incorrect. | ||
| The configuration for CVM security group is incorrect. | |
| The configuration of MySQL security group is incorrect. | |
| The database account has restricted the access to specific host addresses. | |
| The connection command is incorrect. | |
| The IP and port in the command line or configuration file are incorrect. | |
| The MySQL instance's disk is full; maximum connections have been reached; the timeout parameter setting is incorrect; a master/slave switch is undergoing, or other possible issues. | |
| - | |
| The CVM instance is in isolation or shut down. It can be restored or powered on through the Console. | - |
The password is incorrect. | ||
| The database account has restricted the access to specific host addresses. | |
| The connection command is incorrect. | |
| The IP and port in the command line or configuration file are incorrect. | |
| The route table is not enabled. | |
| The MySQL instance's disk is full; maximum connections have been reached; the timeout parameter setting is incorrect; a master/slave switch is undergoing, or other possible issues. | |
| - | |
| The CVM instance is in isolation or shut down. It can be restored or powered on through the Console. | - |
| The LIGHTHOUSE instance is in isolation or shut down. It can be restored or powered on through the Console. | - |
The database account has restricted the access to specific host addresses. | ||
| The password is incorrect. |
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