Cluster upgrade-PolarDB(PolarDB)-阿里云帮助中心

Use the pdbcli upgrade command to upgrade cluster components.

Upgrade the high availability component:
```
pdbcli upgrade cm
```
Upgrade the database engine:
```
pdbcli upgrade db
```
Upgrade the cluster proxy component:
```
pdbcli upgrade proxy
```
Upgrade other cluster components:
- Data backup component:
```
pdbcli upgrade backup
```
- Monitoring component:
```
pdbcli upgrade monitor
```
- Task execution component:
```
pdbcli upgrade agent
```

Note

When you upgrade the database engine, first upgrade the standby node. Then, perform a failover to switch to the standby node. Finally, upgrade the original primary node. During this process, you may need to confirm multiple prompts. Verify each prompt carefully.
After the upgrade is complete, use the pdbcli status command to view the cluster status. Ensure that the upgrade is successful and the cluster is running.

During the cluster upgrade, the following confirmation prompts are displayed:

pdbcli upgrade db
Using config file: ./config.yaml
WARNING - Are you sure you want to upgrade PolarDB DB Cluster component on TARGET(10.XX.XX.2) ? Type 'yes' to upgrade your cluster. [no]: (yes/no): 
WARNING - Are you sure to perform failover operation to TARGET(10.XX.XX.2)? Type 'yes' perform. [no]: (yes/no): 
WARNING - Are you sure you want to upgrade PolarDB DB Cluster component on TARGET(10.XX.XX.1) ? Type 'yes' to upgrade your cluster. [no]: (yes/no):

Run pdbcli help upgrade or pdbcli upgrade --help to view help information for cluster upgrade commands:

Using config file: ./config.yaml
Upgrade PolarDB Cluster Components.
    
    For example:

    pdbcli upgrade cm

Usage:
 pdbcli upgrade [flags]
 pdbcli upgrade [command]

Available Commands:
 agent    Upgrade PolarDB Agent Component
 cm     Upgrade PolarDB Cluster Manager Component
 db     Upgrade PolarDB DB Engine Component
 pfsd    Upgrade PolarDB PFSD Component
 proxy    Upgrade PolarDB Proxy Component

Flags:
 -h, --help          help for upgrade # Gets help information for the upgrade command.
   --no-prompt       No command line confirmation. # If you add this flag, command line confirmation prompts do not appear. Use this flag with caution.
   --no-validate      Skip config file validation.  # Skips the configuration file validation step.
      --start-at-task string  Resumed failed task at last failed task name (INTERNAL USE ONLY). # If an operation fails, use this flag to retry from the failed step.

Global Flags:
   --config string  Specify Config file. (default "./config.yaml") # Specifies the configuration file. The default is ./config.yaml.
   --debug      Enable additional output for debugging. # Displays more output information for debugging.

Use "pdbcli upgrade [command] --help" for more information about a command.