github-actions[bot] commented on issue #7671: URL: https://github.com/apache/dolphinscheduler/issues/7671#issuecomment-1001901772
### Search before asking -[X] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar issues. ### What happened   Use JdbcDataSourceProvider.createOneSessionJdbcDataSource() method hive/impala to create the connection pool and set MaximumPoolSize=1, but the scheduling task is that generally, if hive/impala are multitasking at the same time, getConnection=null will occur, so SqlTask.prepareStatementAndBind() The method will throw a null pointer exception. ### What you expected to happen Why does the hive/impala connection pool need to create a connection pool with a capacity of 1? ### How to reproduce see what happened ### Anything else _No response_ ### Version 2.0.1 ### Are you willing to submit PR? -[] Yes I am willing to submit a PR! ### Code of Conduct -[X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
