Hi @GangWar ,   thank you for your message.  I am using following ODBC Driver: Cloudera ODBC Driver for Impala, Version 2.06.08.1008 I build an ETL-workflow in Microsoft SSIS and I am connecting to a Database on Impala through this ODBC Driver. The error message appears in the SSIS-log. Unfortunately I do not have any more informations concerning this error, except of this log section:   Error: 2022-03-08 07:04:58.29 Code: 0xC02090F5 Source: Data Flow Task ADO NET Source [2] Description: The ADO NET Source was unable to process the data. ERROR [HY000] [Cloudera][Support] (50170) Creation of new thread failed. End Error    Another hint I can contribute is that, this error appears only at the time that is mentioned in the log above. When you run the job one hour or two later, it will run without error. I suppose that this error comes either from the ODBC driver or from the Impala Database itself. For me it is only possible to configure the ODBC driver as I am not the administrator for the Impala DB. Can you help me further with this issue? ... View more