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Warning Message: Cannot preserve partitioning

Posted: Wed Feb 25, 2009 11:52 am
by adis
Hi Guys,
Any ideas about the following warning message?

When checking operator: A sequential operator cannot preserve the partitioning of the parallel data set on input port 0.

I am getting this warning message while writing records from transformer to a sequential file. I have been writing to sequential files before also but never got this message.

Thanks!

Re: Warning Message: Cannot preserve partitioning

Posted: Wed Feb 25, 2009 11:59 am
by betterthanever
set "CLEAR" TO preserve partioning flag on TRANSFORMER

Posted: Wed Feb 25, 2009 12:02 pm
by girija
Select option "Clear" in "Preserver Partitioning" of your transformer output link.

Posted: Wed Feb 25, 2009 12:12 pm
by adis
girija wrote:Select option "Clear" in "Preserver Partitioning" of your transformer output link.
Thanks for your quick reply! I will check it.

Posted: Wed Feb 25, 2009 12:20 pm
by adis
adis wrote:
girija wrote:Select option "Clear" in "Preserver Partitioning" of your transformer output link.
Thanks for your quick reply! I will check it.
That did the trick!! Thanks, warning is not there anymore....

Posted: Wed Feb 25, 2009 3:34 pm
by ray.wurlod
Do you understand why? Do you understand what this setting does?

Are you even interested?

Posted: Thu Feb 26, 2009 10:58 am
by niharranjan
Hi Ray,

Could you please elaborate the cause? I need your help.

Thnks in advance.


Regards,
Nihar

Posted: Fri Feb 27, 2009 11:16 am
by dh_Madhu
As the default settings are Parallel (Read) and Propagate(write) in a transformer, this becomes a conflict for the sequential file stage which writes in sequential mode while actually receiving them in parallel. By clearing the default mode, we are paving the way acceptable to the seq file.

Posted: Sun Mar 01, 2009 10:10 am
by niharranjan
Many thanks Madhu....



Cheers!!!
Nihar