BourneD opened a new issue, #35500:
URL: https://github.com/apache/shardingsphere/issues/35500
version: shardingsphere-jdbc-5.5.2
we have about 4500 tables in our database. and the rule configuration is as
below. there are no other rules except the SINGLE one. The initialization
latency is about 4 minutes.
```
rules:
- !SINGLE
tables:
- "ds0.restful_message_b_table"
defaultDataSource: ds0
```
I analyzed the initialization procedure and found it is blocked in
`org.apache.shardingsphere.mode.metadata.persist.service.metadata.table.TableMetaDataPersistService::persist`.
Can we optimize the `persist` method by parallel execution.
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