You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-issues@hadoop.apache.org by "Jitendra Nath Pandey (JIRA)" <ji...@apache.org> on 2017/02/16 23:31:41 UTC

[jira] [Assigned] (HADOOP-14081) S3A: Consider avoiding array copy in S3ABlockOutputStream (ByteArrayBlock)

     [ https://issues.apache.org/jira/browse/HADOOP-14081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jitendra Nath Pandey reassigned HADOOP-14081:
---------------------------------------------

    Assignee: Rajesh Balamohan

> S3A: Consider avoiding array copy in S3ABlockOutputStream (ByteArrayBlock)
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-14081
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14081
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HADOOP-14081.001.patch
>
>
> In {{S3ADataBlocks::ByteArrayBlock}}, data is copied whenever {{startUpload}} is called. It might be possible to directly access the byte[] array from ByteArrayOutputStream. 
> Might have to extend ByteArrayOutputStream and create a method like getInputStream() which can return ByteArrayInputStream.  This would avoid expensive array copy during large upload.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org