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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/10/10 12:09:20 UTC

[jira] [Resolved] (HADOOP-12387) Improve S3AFastOutputStream memory management

     [ https://issues.apache.org/jira/browse/HADOOP-12387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Loughran resolved HADOOP-12387.
-------------------------------------
    Resolution: Duplicate
      Assignee: Steve Loughran  (was: Thomas Demoor)

> Improve S3AFastOutputStream memory management
> ---------------------------------------------
>
>                 Key: HADOOP-12387
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12387
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Thomas Demoor
>            Assignee: Steve Loughran
>
> The use of ByteArrayOutputStream causes unexpected memory copies that causes unintuitive memory usage for certain combinations of the configuration parameters. Replacing it by more fine grained memory buffer management would fix this, reduce memory usage and eliminate a memory copy.



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