Configuring Impala components with Kerberos

[jerome_dal]

Hi,

I try to use the tImpalaConnection component with Kerberos.

I got info on an architecture topic : Using JDBC components to connect to Kerberos-enabled Impala (talend.com)

This topic proposes to use the the tJDBCConnection together with a JAAS config file.

It is possible to use

tImpalaConnection (and other tImpalaxxx components) with Kerberos enabled? What is the required configuration in this case?

The tImpalaConnection proposes Kerberos parameters. Do we absolutely need a JAAS config file?

My versions are:

Talend Big Data 7.3.1

Cloudera CDP 7.1.6

[Anonymous]

Hello @Jerome Dal​ ,

yes, it's ok to use tImpalaConnection (and other tImpalaxxx components) with Kerberos enabled, just need to check the box 'Use kerberos authentication' and setup the related principal is ok as the below

You don't need a JAAS config file here, for more detail, please refer to the article

https://help.talend.com/r/en-US/7.3/impala/timpalaconnection-standard-properties

[jerome_dal]

Thanks for the answer.

It's ok using Hive2 driver 🙂

Before enabling Kerberos, I was using the Impala driver, and this is not ok using it with Kerberos enabled. I get error below:

[FATAL]: bi_tests.test_impala_with_kerberos_0_1.Test_Impala_with_Kerberos - tImpalaConnection_1 [Cloudera][ImpalaJDBCDriver](500605) Error occurred while opening a session with the server. No additional detail from the server regarding this error is available. Please ensure that the driver configuration is compatible with the server configuration. This type of error can also occur when the server is too busy to handle the request. Please try again later.

Is there any configuration possible using both Impala driver and Kerberos authentication?

Or is that mandatory/recommended to use Hive2 driver when enabling Kerberos?