question Re: [Cloudera][Support] (50170) Creation of new thread failed. in Support Questions

[Cloudera][Support] (50170) Creation of new thread failed.

essbase_admin — Tue, 21 Apr 2026 08:00:11 GMT

When I am connecting via Cloudera ODBC Driver the process fails due to following error:

[Cloudera][Support] (50170) Creation of new thread failed.

Does anyone know what the issue is and can help here? I did not find anything concerning this error.

Re: [Cloudera][Support] (50170) Creation of new thread failed.

GangWar — Tue, 08 Mar 2022 09:22:29 GMT

@essbase_admin Can you elaborate a bit more on the issue? What ODBC version you are using and from what to what you are connecting?

Also may be upload the full log or error message to get help.

Re: [Cloudera][Support] (50170) Creation of new thread failed.

essbase_admin — Tue, 08 Mar 2022 09:38:45 GMT

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?

Re: [Cloudera][Support] (50170) Creation of new thread failed.

GangWar — Thu, 31 Mar 2022 11:36:33 GMT

@essbase_admin I am not sure what can be the cause. May be there is a LB or proxy running which needs to be configured again or tuned again.

https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/impala_proxy.html#proxy_balancing

Re: [Cloudera][Support] (50170) Creation of new thread failed.

GangWar — Thu, 31 Mar 2022 14:59:59 GMT

@essbase_admin May be you should

Use the latest ODBC driver (now 2.6.14)
If still having problems, then enable DEBUG or TRACE level logging in the ODBC driver side, see "Configuring Logging Options on Windows" section in:

https://downloads.cloudera.com/connectors/impala_odbc_2.6.14.1016/Cloudera-ODBC-Connector-for-Impala-Install-Guide.pdf

Re: [Cloudera][Support] (50170) Creation of new thread failed.

VidyaSargur — Tue, 05 Apr 2022 06:42:22 GMT

@essbase_admin, Has the reply helped resolve your issue? If so, can you please mark the appropriate reply as the solution? It will make it easier for others to find the answer in the future.

Re: [Cloudera][Support] (50170) Creation of new thread failed.

essbase_admin — Tue, 12 Apr 2022 10:28:11 GMT

Issue is solved, as it was a Firewall Problem

Thank you all anyway!