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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/09/16 10:35:21 UTC
[GitHub] [shardingsphere] peilinqian commented on issue #19102: Maybe we can verify dataSource in ReadWrite-splitting rules，before create ReadWrite-splitting rules.
peilinqian commented on issue #19102:
URL: https://github.com/apache/shardingsphere/issues/19102#issuecomment-1249206246
```
split_db=> CREATE READWRITE_SPLITTING RULE ms_group_0 (
split_db(> WRITE_RESOURCE=write_0,
split_db(> READ_RESOURCES(read1_0),
split_db(> TYPE(NAME="random")
split_db(> );
ERROR: Can not config duplicate write data source `write_0` in database `split_db`.
split_db=> CREATE READWRITE_SPLITTING RULE ms_group_1(
split_db(> WRITE_RESOURCE=write_0,
split_db(> READ_RESOURCES(read1_0),
split_db(> TYPE(NAME="random")
split_db(> );
ERROR: Can not config duplicate write data source `write_0` in database `split_db`.
split_db=>
split_db=> SHOW READWRITE_SPLITTING RULES;
name | auto_aware_data_source_name | write_data_source_query_enabled | write_data_source_name | read_data_source_names | load_balancer_type | load_balancer_props
------------+-----------------------------+---------------------------------+------------------------+------------------------+-------------------------+---------------------
ds_0 | | | write_0 | read0_0 | TRANSACTION_ROUND_ROBIN |
ds_1 | | | write_1 | read1_0 | TRANSACTION_ROUND_ROBIN |
ms_group_0 | | | write_0 | read1_0 | random |
ms_group_1 | | | write_0 | read1_0 | random |
(4 rows)
```
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