Beyondeclipse commented on issue #10678: URL: https://github.com/apache/shardingsphere/issues/10678#issuecomment-865714539
@tristaZero I found the root cause of slowing down my system is loading all 'TableMetaData' twice: 1. ShardingSphereDataSource -> MetaDataContextsBuilder.build -> MetaDataContextsBuilder.buildMetaData -> SchemaBuilder.build 2. ShardingSphereDataSource -> MetaDataContextsBuilder.build -> StandardMetaDataContexts -> OptimizeContextFactory -> FederateSchemaMetadatas -> FederateSchemaMetadata.initTables The first way is faster than the second one by using multi-thread and DialectTableMetaDataLoader. It seams that the simple way is to make the loading once and I create a pull request for it. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
