hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-735) The underlying data structure, ByteArrayOutputStream, for buffer type of Jute record is inappropriate
Date Fri, 15 Dec 2006 22:32:23 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-735?page=all ]

Owen O'Malley updated HADOOP-735:
---------------------------------

          Component/s: record
                           (was: io)
          Description: 
With ByteArrayOutputStream as the underlying data structure for a buffer, the user is forced
to convert it into a byte [] object in order to do any operations other than sequence append
on the buffer. The convertion will create a new copy of bytes. That will cause huge performance
problem. 

It seems BytesWritable is a better replacement.


  was:

With ByteArrayOutputStream as the underlying data structure for a buffer, the user is forced
to convert it into a byte [] object in order to do any operations other than sequence append
on the buffer. The convertion will create a new copy of bytes. That will cause huge performance
problem. 

It seems BytesWritable is a better replacement.


    Affects Version/s: 0.9.2
             Assignee: Milind Bhandarkar  (was: Owen O'Malley)

> The underlying data structure, ByteArrayOutputStream,  for buffer type of Jute record
is inappropriate
> ------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-735
>                 URL: http://issues.apache.org/jira/browse/HADOOP-735
>             Project: Hadoop
>          Issue Type: Bug
>          Components: record
>    Affects Versions: 0.9.2
>            Reporter: Runping Qi
>         Assigned To: Milind Bhandarkar
>
> With ByteArrayOutputStream as the underlying data structure for a buffer, the user is
forced to convert it into a byte [] object in order to do any operations other than sequence
append on the buffer. The convertion will create a new copy of bytes. That will cause huge
performance problem. 
> It seems BytesWritable is a better replacement.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message