liuxiaocs7 commented on issue #24874:
URL:
https://github.com/apache/shardingsphere/issues/24874#issuecomment-1486190511
> ```
> 11:55:39.913 [nioEventLoopGroup-2-1] INFO
org.apache.shardingsphere.data.pipeline.cdc.client.handler.LoginRequestHandler
- Server greeting result, server version: 5.3.2-SNAPSHOT, protocol version: 1
> 11:55:39.958 [nioEventLoopGroup-2-1] INFO
org.apache.shardingsphere.data.pipeline.cdc.client.handler.LoginRequestHandler
- Login success, username root
> 11:55:39.971 [nioEventLoopGroup-2-1] ERROR
org.apache.shardingsphere.data.pipeline.cdc.client.handler.CDCRequestHandler -
received error response status: FAILED
> error_code: "HY000"
> error_message: "Rule `ShardingRule` should have and only have one
instance."
> ```
>
> Could you check you sharding rule config? also you can debug at
`org.apache.shardingsphere.proxy.backend.handler.cdc.CDCBackendHandler#streamData`,
and tell us why sharding rule isn't 1
I would like to ask whether the sharding rule config is in
`config-sharding.yaml` and this code blocks:
```
#rules:
#- !SHARDING
# tables:
# t_order:
# actualDataNodes: ds_${0..1}.t_order_${0..1}
# tableStrategy:
# standard:
# shardingColumn: order_id
# shardingAlgorithmName: t_order_inline
# keyGenerateStrategy:
# column: order_id
# keyGeneratorName: snowflake
# auditStrategy:
# auditorNames:
# - sharding_key_required_auditor
# allowHintDisable: true
# t_order_item:
# actualDataNodes: ds_${0..1}.t_order_item_${0..1}
# tableStrategy:
# standard:
# shardingColumn: order_id
# shardingAlgorithmName: t_order_item_inline
# keyGenerateStrategy:
# column: order_item_id
# keyGeneratorName: snowflake
# bindingTables:
# - t_order,t_order_item
# defaultDatabaseStrategy:
# standard:
# shardingColumn: user_id
# shardingAlgorithmName: database_inline
# defaultTableStrategy:
# none:
# defaultAuditStrategy:
# auditorNames:
# - sharding_key_required_auditor
# allowHintDisable: true
#
# shardingAlgorithms:
# database_inline:
# type: INLINE
# props:
# algorithm-expression: ds_${user_id % 2}
# t_order_inline:
# type: INLINE
# props:
# algorithm-expression: t_order_${order_id % 2}
# t_order_item_inline:
# type: INLINE
# props:
# algorithm-expression: t_order_item_${order_id % 2}
#
# keyGenerators:
# snowflake:
# type: SNOWFLAKE
#
# auditors:
# sharding_key_required_auditor:
# type: DML_SHARDING_CONDITIONS
```
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