HA #
Root Configuration #
Class name：org.apache.shardingsphere.dbdiscovery.api.config.DatabaseDiscoveryRuleConfiguration
Attributes：
| Name | DataType | Description |
|---|---|---|
| dataSources (+) | Collection<DatabaseDiscoveryDataSourceRuleConfiguration> | Data source configuration |
| discoveryHeartbeats (+) | Map<String, DatabaseDiscoveryHeartBeatConfiguration> | Detect heartbeat configuration |
| discoveryTypes (+) | Map<String, ShardingSphereAlgorithmConfiguration> | Database discovery type configuration |
Data Source Configuration #
Class name：org.apache.shardingsphere.dbdiscovery.api.config.rule.DatabaseDiscoveryDataSourceRuleConfiguration
Attributes：
| Name | DataType | Description | Default Value |
|---|---|---|---|
| groupName (+) | String | Database discovery group name | - |
| dataSourceNames (+) | Collection<String> | Data source names, multiple data source names separated with comma. Such as: ds_0, ds_1 | - |
| discoveryHeartbeatName (+) | String | Detect heartbeat name | - |
| discoveryTypeName (+) | String | Database discovery type name | - |
Detect Heartbeat Configuration #
Class name：org.apache.shardingsphere.dbdiscovery.api.config.rule.DatabaseDiscoveryHeartBeatConfiguration
Attributes：
| Name | DataType | Description | Default Value |
|---|---|---|---|
| props (+) | Properties | Detect heartbeat attribute configuration, keep-alive-cron configuration, cron expression. Such as: ‘0/5 * * * * ?’ | - |
Database Discovery Type Configuration #
Class name：org.apache.shardingsphere.infra.config.algorithm.ShardingSphereAlgorithmConfiguration
Attributes：
| Name | DataType | Description | Default Value |
|---|---|---|---|
| type (+) | String | Database discovery type, such as: MGR、openGauss | - |
| props (?) | Properties | Required parameters for high-availability types, such as MGR’s group-name | - |