KomachiSion edited a comment on issue #2420: Spring boot starts loading data source asynchronously? URL: https://github.com/apache/incubator-shardingsphere/issues/2420#issuecomment-495042751 > The database I use is PostgreSQL, the database connection pool is HikariDataSource About PostgreSQL and Oracle, ShardingSphere will get all tables in datasource even these tables are not sharding tables. The problem has fixed in 4.0.0-RC1, I suggest you upgrade. reference #1933. > There are too many connection pool threads in multiple data sources. Will it affect the production environment? You can set `maxSize` of connection pool to control the threads. it depends ability of your environment. From the current feedback, as long as the maxSize of connection pools is controlled properly, there will be no affect.
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