[jira] [Created] (TAJO-665) sort buffer size must be dealt as long type values.

[Hyunsik Choi (JIRA)]

Hyunsik Choi created TAJO-665:
---------------------------------

             Summary: sort buffer size must be dealt as long type values.
                 Key: TAJO-665
                 URL: https://issues.apache.org/jira/browse/TAJO-665
             Project: Tajo
          Issue Type: Improvement
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
             Fix For: 0.8-incubating, 1.0-incubating


sort buffer size (tajo.executor.external-sort.buffer-mb in TajoConf) is used to 
determine in-memory buffer for external merge sort. Currently, its type is 
integer. So, if users can set more than 2GB to sort buffer size, external merge 
operator will meet  negative sort buffer size. Finally, it will cause 
significant performance degradation.



--
This message was sent by Atlassian JIRA
(v6.2#6252)