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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-583) Copying data from inputStream to OuputStream needs appropriate buffer size
Date Sun, 13 Mar 2011 18:42:59 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006248#comment-13006248
] 

Eric Yang commented on CHUKWA-583:
----------------------------------

This bug is in the test code, and we don't push large amount of data over the validation framework.
 Hence, it is a minor bug.  Patch to increase the size is welcome.

> Copying data from inputStream to OuputStream needs appropriate buffer size
> --------------------------------------------------------------------------
>
>                 Key: CHUKWA-583
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-583
>             Project: Chukwa
>          Issue Type: Bug
>          Components: Data Processors
>    Affects Versions: 0.4.0
>            Reporter: Xiaoming Shi
>            Priority: Trivial
>
> In the file 
> ./chukwa-0.4.0/src/test/org/apache/hadoop/chukwa/validationframework/util/DataOperations.java
  line: 54-58
> In the function copyFile, the buffer size is fixed as 4096 bytes. With the size of the
data varies, the performance can be damaged a lot.
> We need an appropriate buffer size which depends on the size of the data to be copied.

> This is the same as the Appache Bug (https://issues.apache.org/bugzilla/show_bug.cgi?id=32546)

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