jingyimei opened a new pull request #401: DL: fix default_buffer_size 
calculation
URL: https://github.com/apache/madlib/pull/401
 
 
   JIRA: MADLIB-1340
   
   In buffer size calculator, we assumed the array to be packed is one 
dimention, and use the array_upper(x, 1) to get the length
   of the array. In DL input data preprocessor, we passed the first element
   in array_ndims as the length, which is not right because the
   array can be multi-dimentional. This caused
   default_buffer_size_calculator returns a bigger buffer size than it
   supposed to have and rows get too big and crashes database.
   
   Instead, we should use
   product of all the elements from array_ndims to represent the actual length 
of
   the array. For example, if array_ndims returns [32,32,3], we should pass
   32*32*3 instead of 32. This commit fixes this issue by passing the
   right length to defualt buffer calculator.

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
[email protected]


With regards,
Apache Git Services

Reply via email to