zjcnb commented on issue #18441:
URL:
https://github.com/apache/shardingsphere/issues/18441#issuecomment-1160030867
`Configuration : `
```
rules:
- !READWRITE_SPLITTING
dataSources:
readwrite_ds:
type: Dynamic
props:
auto-aware-data-source-name: replication_delay_ds
primary-data-source-allow-query: true # Default Value are true,
it represents provide query when all the replica are offline.
- !DB_DISCOVERY
dataSources:
replication_delay_ds:
dataSourceNames:
- ds_0
- ds_1
- ds_2
discoveryHeartbeatName: replication_delay_heartbeat
discoveryTypeName: replication_delay
discoveryHeartbeats:
replication_delay_heartbeat:
props:
keep-alive-cron: '0/1 * * * * ?'
discoveryTypes:
replication_delay:
type: MySQL.NORMAL_REPLICATION
props:
delay-milliseconds-threshold: 1000
```
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