Hi there @Riana,
alright, so what I can see here is the following:
Your libname to a dsn ImpalaJ I cannot see it defined anywhere else.
The odbc.ini, it should be most probably in the same location as the odbcinst.ini, since one is related to the other. The odbc,ini file will actually have the configuration to your database: host, port, schema, and other details. You will also need to export the variable for ODBC and ODBCINST
In general, i think your first objective would be to focus on testing the Impala connection OUTSIDE from SAS, from the Linux command line. This should help you, hopefully:
https://www.cloudera.com/documentation/enterprise/5-11-x/topics/impala_odbc.html
http://doc.mapr.com/display/MapR/Configure+the+MapR+Impala+ODBC+Driver+for+Linux+and+Mac+OS+X
Once you can validate connections from Linux to Impala databases and query them, you can move forward to the next step: to query them from SAS.
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