If you have switched to 64-bit TPTAPI, are you sure you are using 64-bit CLI?
When you install CLI you can install both 32-bit and 64-bit.
I believe they reside in different directories.
You would have to check the CLI documentation about how to enable one over the other. I am not familiar with that.
We are investigating and I will update here when we have a resolution.
Can you please tell me at which customer site you are working?
At the site with which we were working, the problem was an incompatibility between the TPTAPI infrastructure and the Export operator.
Please make sure you have installed the latest patched of papi and the export operator.
I tried to install TPT 13.10 in Linux 64 bit in linux, could not able to find any
Teradata Parallel Transporter Infrastructure (32-bit) software.Only 32 Bits software availble
(tbldda00-13.10.00.00-1.i386.rpm). However there are EXPORT,LOAD,STEAM,UPDATE 64 Bit software are there. Wonder how to configure Tbuild 32 bit to eanble 64 bit operators.

HI,
-With 32 bit TPTAPI libraries (TelApi 13.10) I could connect and fetch the data from Teradata database (13.0).
-But after changing all the related environment variable I could load the 64 bit libraries but could not connect to Teradata database.
While connecting it throws the error, "[CLI2: BUFOVFLOW(308): Parcel data too large for receiving buffer.]".
-In the manual I could find some related stuff for this issue. "If Fetch Maximum data length is less than the actual data to be returned by CLI, CLI will
return a BUFOVFLOW error. Variable length fetch should not be set to 'Y' when parcel mode is set to 'N'."
I am not sure how to set these options related to "dbcarea.h"
Is there any workaround/solution for this issue?
Thanks and Regards,
Harshad